The Lycra Company LLC

United States of America

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IPC Class
D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes 13
D01F 1/10 - Other agents for modifying properties 11
D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads 10
D02G 3/32 - Elastic yarns or threads 9
C08G 18/48 - Polyethers 8
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Registered / In Force 49
Found results for  patents

1.

EASILY SETTABLE STRETCH FABRICS INCLUDING LOW-MELT FIBER

      
Application Number 18582430
Status Pending
Filing Date 2024-02-20
First Publication Date 2024-06-13
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Hietpas, Geoffrey D.
  • Alcott, Brian Scott

Abstract

The present invention provides an easy settable stretch fabric comprising three types of yarns: a rigid fiber, an elastic fiber, and a low-melt fiber, wherein the low-melt fiber comprises low-melt polymer which can be fused in the temperature between 60° C. to 200° C.′, being higher than the temperature used for normal textile process and household laundry, but lower than the temperature used for heat setting elastic fiber. The low-melt fiber can be selected from a group of fibers made from modified polyester, nylon, and polypropylene and the copolymer from them in the form of staple or filament.

IPC Classes  ?

  • D02G 3/32 - Elastic yarns or threads
  • A41B 9/00 - Undergarments
  • A41B 11/02 - Reinforcements
  • A41C 1/00 - Corsets or girdles
  • A41C 1/08 - Abdominal supports
  • A41D 1/08 - Trousers specially adapted for sporting purposes
  • A41D 7/00 - Bathing gowns; Swim-suits, drawers, or trunks; Beach suits
  • D01F 1/10 - Other agents for modifying properties
  • D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
  • D03D 1/00 - Woven fabrics designed to make specified articles
  • D03D 15/56 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic
  • D04B 1/16 - Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D04B 1/24 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel
  • D04B 1/26 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel stockings
  • D04B 9/46 - Circular weft knitting machines with independently-movable needles specially adapted for producing goods of particular configuration stockings, or portions thereof
  • D04B 21/16 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
  • D04B 21/18 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating elastic threads
  • D04B 21/20 - Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
  • D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
  • D06P 5/20 - Physical treatments affecting dyeing, e.g. ultrasonic or electric

2.

ELASTICIZED NONWOVEN LAMINATES

      
Application Number 17912134
Status Pending
Filing Date 2021-03-24
First Publication Date 2023-05-25
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liu, Hong
  • Celebi, Oguzhan
  • Kurland, Nicholas E.

Abstract

Elasticized nonwoven laminates including high recovery power polyurethane elastic fiber, articles of manufacture with these elasticized nonwoven laminates and methods for production of the elasticized laminates and articles of manufacture are provided.

IPC Classes  ?

  • A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • A61L 15/26 - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/48 - Polyethers
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines

3.

ELASTIC FIBER, COMPOSITE YARNS AND FABRICS WITH ANTI-SLIPPAGE PERFORMANCE

      
Application Number 17908412
Status Pending
Filing Date 2021-03-10
First Publication Date 2023-03-23
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Kurland, Nicholas E.
  • Liu, Hong
  • Huang, Yucheng

Abstract

Elastic fiber with improved seam slippage resistance performance is provided. Also provided are elastic composite yarn, fabrics and articles of manufacture comprising the elastic fiber and methods for production of methods for making spandex fiber, composite yarn, fabric and articles of manufacture with improved elastane slippage resistance.

IPC Classes  ?

  • D02G 3/32 - Elastic yarns or threads
  • D01F 1/10 - Other agents for modifying properties
  • D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes

4.

ANTI-NIPPLE PROTRUSION GARMENTS

      
Application Number 17800694
Status Pending
Filing Date 2021-03-02
First Publication Date 2023-03-09
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Farmer, Douglas K.
  • Goodge, Katarina

Abstract

Fabrics and garments, and methods for producing these fabrics and garments having a thin polymer layer which reduces degree of nipple protrusion are provided.

IPC Classes  ?

  • A41D 31/02 - Layered materials
  • A41D 1/18 - Blouses
  • A41C 3/00 - Brassières
  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
  • D06M 23/16 - Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
  • D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes

5.

KNITTED SOCKS

      
Application Number 17770703
Status Pending
Filing Date 2020-11-03
First Publication Date 2022-12-22
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Cera, Juan
  • Hietpas, Geoffrey D.

Abstract

Knitted socks or other garments or portions thereof and methods for producing knitted socks or other garments or portions thereof which stay in place when worn with less or no spandex or rubber fiber in the sock or other garment or portion thereof are provided.

IPC Classes  ?

  • D04B 21/08 - Patterned fabrics or articles characterised by thread material
  • A41B 11/00 - Hosiery; Panti-hose; Body-stockings

6.

TRANSFER PRINTABLE ELASTIC DISPERSION WITH SOLID LOW MELT POWDER

      
Application Number 17609652
Status Pending
Filing Date 2020-05-08
First Publication Date 2022-07-07
Owner The Lycra Company LLC (USA)
Inventor Liao, Tianyi

Abstract

An elastic tape or film of a aqueous polyurethane dispersion with solid low melt powder which can be applied to a fabric via transfer printing as well as methods for production of the elastic tape or film, articles of manufacture comprising the elastic tape or film and methods for production of the elastic tape or film are provided.

IPC Classes  ?

  • C09J 7/35 - Heat-activated
  • C09J 175/04 - Polyurethanes
  • C09J 7/21 - Paper; Textile fabrics
  • C09J 7/25 - Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
  • C08J 3/12 - Powdering or granulating

7.

SPANDEX FIBER WITH REDUCED VISIBILITY

      
Application Number 17292777
Status Pending
Filing Date 2019-11-09
First Publication Date 2021-12-23
Owner The LYCRA Company LLC (USA)
Inventor
  • Dewhurst, Robert
  • Hietpas, Geoffrey D.
  • Parini, Giovanni
  • Poe, Ambata M.
  • Smith, Steven W.
  • Wahlstrom, Mary

Abstract

Spandex fiber compositions with reduced grin-through effect are provided. Also provided are methods for production and use of these compositions.

IPC Classes  ?

  • D01F 1/10 - Other agents for modifying properties
  • C08K 13/02 - Organic and inorganic ingredients
  • D01F 1/04 - Pigments
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes

8.

Knit structures with reduced curl and roll over and a method of making same

      
Application Number 17254525
Grant Number 11299828
Status In Force
Filing Date 2019-07-02
First Publication Date 2021-09-02
Grant Date 2022-04-12
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Ceria, Alberto
  • Rossi, Davide

Abstract

Knit structures and processes for constructing knit structures which can be used as a replacement for double layer bands in articles of clothing such as, but not limited to, pantyhose, stockings, stay ups and socks are provided.

IPC Classes  ?

  • D04B 1/10 - Patterned fabrics or articles
  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D04B 1/26 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel stockings

9.

ACID-DYEABLE SPANDEX FROM CATIONIC POLYURETHANE

      
Application Number 17254544
Status Pending
Filing Date 2019-07-03
First Publication Date 2021-08-12
Owner The LYCRA Company LLC (USA)
Inventor
  • Ceria, Alberto
  • Liu, Hong
  • Smith, Steven W.
  • Stano, Kelly L.
  • Waldbauer, Jr., Robert O.

Abstract

Compositions containing spandex and quaternary amine additives for use in filaments, fiber and articles of manufacture having improved wash fastness when dyed with acid dyes are provided. Methods for production of these compositions are also provided.

IPC Classes  ?

  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01F 1/10 - Other agents for modifying properties
  • D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products

10.

STEAM JET BULKING OF MULTICOMPONENT YARNS FOR IMPROVED POST TEXTILE PROCESSING

      
Application Number 17268860
Status Pending
Filing Date 2019-08-19
First Publication Date 2021-08-05
Owner The LYCRA Company LLC (USA)
Inventor Meredith, John B

Abstract

Processes for steam jet bulking of multicomponent yarns, yarns produced via these processes, packages of wound multicomponent yarns produced via these processes, and stretch fabrics and articles of manufacture of these yarns and stretch fabrics are provided.

IPC Classes  ?

  • D02G 1/16 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
  • D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
  • D02G 3/34 - Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns

11.

GARMENTS INCLUDING ELASTIC COMPOSITE FABRIC

      
Application Number 17131858
Status Pending
Filing Date 2020-12-23
First Publication Date 2021-04-22
Owner THE LYCRA COMPANY LLC (USA)
Inventor Farmer, Douglas K.

Abstract

Included is a stretchable fabric composite laminate, which includes two outer layers of fabric with a bonded inner layer of elastomeric fibers. The stretchable fabric composite laminate is attached to the garment fabric as an edgeband or strap or within an edgeband or strap to provide a more comfortable garment or greater fit range.

IPC Classes  ?

  • A41D 31/18 - Elastic
  • A41D 27/00 - OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES - Details of garments or of their making
  • A41C 3/12 - Component parts
  • B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
  • B32B 7/09 - Interconnection of layers by mechanical means by stitching, needling or sewing
  • B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes

12.

Garment incorporating waterproof or water resilient aqueous polyurethane dispersions and/or having altered stress profile

      
Application Number 17064803
Grant Number 11692304
Status In Force
Filing Date 2020-10-07
First Publication Date 2021-01-21
Grant Date 2023-07-04
Owner The LYCRA Company LLC (USA)
Inventor
  • Farmer, Douglas K.
  • Covelli, Carmen A.
  • Liu, Hong

Abstract

Articles, such as garments, including films comprising dried aqueous polyurethane dispersions are disclosed, whereby the garment has an altered stress which is exhibited during wear of the garment and/or has one or more sections of waterproof or water-resilient fabric. The film may be bonded to the fabric of the article to provide a fabric or film laminate.

IPC Classes  ?

  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C09D 175/04 - Polyurethanes
  • A41D 7/00 - Bathing gowns; Swim-suits, drawers, or trunks; Beach suits
  • A41C 3/00 - Brassières
  • A41C 1/00 - Corsets or girdles
  • A41C 1/08 - Abdominal supports
  • B32B 1/00 - Layered products essentially having a general shape other than plane
  • B32B 27/14 - Layered products essentially comprising synthetic resin next to a particulate layer
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
  • B32B 27/10 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of paper or cardboard
  • B32B 27/40 - Layered products essentially comprising synthetic resin comprising polyurethanes
  • B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
  • B32B 27/24 - Layered products essentially comprising synthetic resin characterised by the use of special additives using solvents or swelling agents
  • B32B 29/00 - Layered products essentially comprising paper or cardboard
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 13/12 - Layered products essentially comprising a water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such substances as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 5/16 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer formed of particles, e.g. chips, chopped fibres, powder
  • B32B 9/02 - Layered products essentially comprising a particular substance not covered by groups comprising animal or vegetable substances
  • B32B 21/08 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance of fibre-reinforced resin
  • B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
  • A41C 3/10 - Brassières with stiffening or bust-forming inserts
  • B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
  • B32B 15/095 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyurethanes
  • B32B 5/06 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a fibrous layer needled to another layer, e.g. of fibres, of paper
  • B32B 5/32 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous both layers being foamed or specifically porous
  • B32B 3/26 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a layer with cavities or internal voids
  • B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
  • B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
  • B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
  • B32B 27/18 - Layered products essentially comprising synthetic resin characterised by the use of special additives
  • A41B 17/00 - Selection of special materials for underwear
  • B32B 27/12 - Layered products essentially comprising synthetic resin next to a fibrous or filamentary layer
  • B32B 7/04 - Interconnection of layers
  • B32B 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection

13.

Silicone oil elimination from spandex polymer spinning solutions

      
Application Number 16320240
Grant Number 11613827
Status In Force
Filing Date 2017-04-11
First Publication Date 2019-10-03
Grant Date 2023-03-28
Owner The LYCRA Company LLC (USA)
Inventor Pardini, Steven P.

Abstract

A method of making polyurethane or polyurethane urea strands containing siloxane in the polyurethane or polyurethane urea backbone including the steps of: (a) reacting a macroglycol with a diisocyanate to form a prepolymer; (b) reacting the prepolymer with a diamine to form a spinning solution; (c) spinning the spinning solution to form polyurethane or polyurethane urea strands, wherein: i. a diol-polydimethylsiloxane is reacted with the macroglycol and the diisocyanate in step (a); ii. a diamine-polydimethylsiloxane is reacted with the prepolymer prior to the reaction of the prepolymer with the diamine in step (b); or iii. a diamine-polydimethylsiloxane is reacted at the same time as the prepolymer and diamine in step (b), and wherein the polyurethane or polyurethane urea strands comprise less than or equal to 6% of siloxane by weight based on the weight of the polyurethane or polyurethane urea strands and elastic fibers made thereby. An elastic fiber including two or more polyurethane or polyurethane urea strands including siloxane in the polyurethane or polyurethane urea backbone that are bundled together, wherein the siloxane is present in an amount of greater than or equal to 0.01% and less than or equal to 4.0% by weight based on the weight of the fiber. In some aspects, the siloxane is free of urethane radicals.

IPC Classes  ?

  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • C08G 18/61 - Polysiloxanes
  • D01D 5/04 - Dry spinning methods
  • D01F 1/10 - Other agents for modifying properties
  • D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyureas
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step

14.

Aqueous polyurethane dispersions, prepolymers, and shaped articles made therefrom

      
Application Number 16324850
Grant Number 11312808
Status In Force
Filing Date 2017-04-25
First Publication Date 2019-09-19
Grant Date 2022-04-26
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Farmer, Douglas K
  • Covelli, Carmen A
  • Liu, Hong
  • Lange, Laura E
  • Liao, Tianyi
  • Bissah, Kofi

Abstract

Aqueous polyurethane dispersions, prepolymers for formation of these dispersions, methods for their use in shaping articles, as well as shaping articles produced thereby are provided.

IPC Classes  ?

  • C08G 18/08 - Processes
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G 18/48 - Polyethers
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08K 5/00 - Use of organic ingredients
  • C08K 5/17 - Amines; Quaternary ammonium compounds
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C08K 3/36 - Silica
  • C08G 18/66 - Compounds of groups , , or
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

15.

Method and system for improving size selection of garments

      
Application Number 16078326
Grant Number 11132811
Status In Force
Filing Date 2017-03-06
First Publication Date 2019-02-21
Grant Date 2021-09-28
Owner THE LYCRA COMPANY LLC (USA)
Inventor Bakker, Willem

Abstract

A method and system that facilitates the size selection for garments such as hosiery or pantyhose with the aim to improve comfort and fit for the wearer is provided.

IPC Classes  ?

  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
  • G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
  • G06Q 10/00 - Administration; Management
  • A41B 11/14 - Panti-hose; Body-stockings

16.

Creel guide

      
Application Number 15735452
Grant Number 10640323
Status In Force
Filing Date 2016-06-10
First Publication Date 2018-06-21
Grant Date 2020-05-05
Owner The LYCRA Company LLC (USA)
Inventor Deturk, Charles P

Abstract

A rolling guide for a fiber strand comprises a first support member extending from a base of the roller guide to a compound joint having first and second portions. The first portion of the compound joint is mounted on the first support member for rotation around a first axis. The second portion of the compound joint being rotatable relative to the first portion around a second axis at a compound angle to the first axis. A second support member is connected with the second portion of the compound joint at a proximal end of the second support member. A channeled roller is carried on the second support member distally from the proximal end, and mounted for rotation around a third axis. The channeled roller has an annular channel formed therein. A fastener is provided to selectively prevent the second portion of the compound joint from rotating around the second axis relative to the first portion of the compound joint. Also provided according to the present disclosure is a method of guiding one or more fiber strands from a fiber package on a creel device to a destination location for further processing.

IPC Classes  ?

  • B65H 57/14 - Pulleys, rollers, or rotary bars
  • B65H 57/26 - Supports for guides
  • B65H 57/16 - Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation

17.

Spandex from poly(tetramethylene-co- ethyleneether)glycols blended with polymeric glycols

      
Application Number 13799004
Grant Number 11421070
Status In Force
Filing Date 2013-03-13
First Publication Date 2018-05-03
Grant Date 2022-08-23
Owner THE LYCRA COMPANY LLC (USA)
Inventor Palmer, Jr., Charles Francis

Abstract

A polyurethaneurea composition comprises a reaction product of at least one diisocyanate compound, a polymeric glycol, a poly(tetramethylene-co-ethyleneether) glycol comprising constituent units derived by copolymerizing tetrahydrofuran and ethylene oxide (EO) wherein the portion of the constituent units derived from ethylene oxide is present in the poly(tetramethylene-co-ethyleneether) glycol from greater than about 37 to about 70 mole percent, at least one diamine chain extender, and at least one chain terminator. The invention further relates to the use of blends of polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols as the soft segment base in spandex compositions. The invention also relates to new polyurethane compositions comprising polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols, and their use in spandex.

IPC Classes  ?

  • C08G 18/83 - Chemically modified polymers
  • D01F 6/78 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08L 71/02 - Polyalkylene oxides
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • D01D 5/04 - Dry spinning methods
  • C08G 18/48 - Polyethers
  • C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G 18/72 - Polyisocyanates or polyisothiocyanates
  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made

18.

Garment incorporating aqueous polyurethane dispersions having altered stress profile

      
Application Number 15496432
Grant Number 10544543
Status In Force
Filing Date 2017-04-25
First Publication Date 2017-08-10
Grant Date 2020-01-28
Owner The LYCRA Company LLC (USA)
Inventor
  • Farmer, Douglas K
  • Covelli, Carmen A
  • Liu, Hong

Abstract

Articles, such as garments, including films comprising dried aqueous polyurethane dispersions are disclosed, whereby the garment has an altered stress which is exhibited during wear of the garment. The film may be bonded to the fabric of the article to provide a fabric or film laminate.

IPC Classes  ?

  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C09D 175/04 - Polyurethanes
  • A41D 7/00 - Bathing gowns; Swim-suits, drawers, or trunks; Beach suits
  • A41C 3/00 - Brassières
  • A41C 1/00 - Corsets or girdles
  • A41C 1/08 - Abdominal supports

19.

Shape enhancing garments with discontinuous elastic polymer composition

      
Application Number 15097564
Grant Number 10104917
Status In Force
Filing Date 2014-12-02
First Publication Date 2017-06-22
Grant Date 2018-10-23
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Liu, Hong
  • Farmer, Douglas K.

Abstract

A garment with shape enhancing function. The garment includes an elastic fabric and polymer composition to enhance shaping.

IPC Classes  ?

  • A41C 1/00 - Corsets or girdles
  • A41D 31/00 - Materials specially adapted for outerwear
  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
  • D06M 23/16 - Processes for the non-uniform application of treating agents, e.g. one-sided treatment; Differential treatment
  • A41C 1/08 - Abdominal supports
  • A41D 1/06 - Trousers
  • A41D 13/00 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
  • D06N 7/00 - Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
  • D06M 15/227 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
  • D06M 15/568 - Reaction products of isocyanates with polyethers
  • D06M 15/693 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
  • D06N 3/10 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with styrene-butadiene copolymerisation products
  • D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes
  • D06N 3/00 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
  • D06M 101/32 - Polyesters
  • D06M 101/38 - Polyurethanes

20.

Bio-derived polyurethane fiber

      
Application Number 15308480
Grant Number 10883198
Status In Force
Filing Date 2015-05-05
First Publication Date 2017-02-23
Grant Date 2021-01-05
Owner The LYCRA Company LLC (USA)
Inventor
  • Waldbauer, Jr., Robert O.
  • D'Allura, Norman J.

Abstract

Included are elastomeric fibers and method for preparing such fibers, which include a bio-derived butanediol. The bio-derived butanediol is used to prepare a polymeric glycol composition, which is contacted with a diisocyanate and spun to provide an elastomeric fiber.

IPC Classes  ?

  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01D 5/04 - Dry spinning methods
  • D01D 5/06 - Wet spinning methods
  • D01F 1/02 - Addition of substances to the spinning solution or to the melt
  • D01F 1/10 - Other agents for modifying properties
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08G 18/48 - Polyethers
  • C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic

21.

Garment with altered stress profile

      
Application Number 15161749
Grant Number 10104925
Status In Force
Filing Date 2016-05-23
First Publication Date 2016-10-06
Grant Date 2018-10-23
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Farmer, Douglas K.
  • Covelli, Carmen A.

Abstract

Included are articles such as garments including polymer film compositions to alter the stress profile of the garment which is exhibited during wear of the garment. The polymer film may be bonded to the fabric to provide a fabric/film laminate.

IPC Classes  ?

  • A41C 3/00 - Brassières
  • A41D 31/00 - Materials specially adapted for outerwear
  • A41B 17/00 - Selection of special materials for underwear
  • A41C 3/10 - Brassières with stiffening or bust-forming inserts
  • A41B 1/08 - Shirts - Details
  • A41B 9/00 - Undergarments
  • A41B 9/04 - Knickers for ladies, with or without inserted crotch or seat parts
  • A41B 9/06 - Undershirts; Chemises
  • A41B 11/00 - Hosiery; Panti-hose; Body-stockings
  • A41B 11/14 - Panti-hose; Body-stockings
  • A41C 1/00 - Corsets or girdles
  • A41D 1/00 - Garments
  • A41D 1/04 - Vests, jerseys, sweaters or the like
  • A41D 1/06 - Trousers
  • A41D 1/14 - Skirts
  • A41D 1/18 - Blouses
  • A41D 1/22 - Clothing specially adapted for women, not otherwise provided for
  • A41D 3/02 - Overcoats
  • A41D 3/04 - Raincoats
  • A41D 3/08 - Capes
  • A41D 7/00 - Bathing gowns; Swim-suits, drawers, or trunks; Beach suits
  • A41D 10/00 - Pyjamas; Nightdresses
  • A41D 13/00 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
  • A41D 13/002 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
  • A41D 13/012 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches for aquatic activities, e.g. with buoyancy aids
  • A41D 13/04 - Aprons; Fastening devices for aprons
  • A41D 13/12 - Surgeons' or patients' gowns or dresses
  • A41D 17/00 - Gaiters; Spats
  • A41D 20/00 - Wristbands or headbands, e.g. for absorbing sweat
  • A41D 25/00 - Neckties
  • A41D 27/02 - Linings
  • A41D 29/00 - Uniforms; Parts or accessories of uniforms
  • A41F 9/00 - Belts, girdles, or waistbands for trousers or skirts
  • A42B 1/00 - Hats; Caps; Hoods
  • A42B 5/00 - Veils; Holders for veils
  • A61F 5/37 - Restraining devices for the body or for body parts; Restraining shirts
  • A61F 13/00 - Bandages or dressings; Absorbent pads
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
  • B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance

22.

Polyurethane foam by reaction injection molding

      
Application Number 14442294
Grant Number 10040890
Status In Force
Filing Date 2013-11-13
First Publication Date 2016-09-29
Grant Date 2018-08-07
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Lambert, James Michael
  • Farmer, Douglas K.
  • Bivigou Koumba, Achille Mayelle

Abstract

The present invention provides a method for preparing a foam that includes a polyurethaneurea dispersion. These foams have enhanced flexibility and resistance to compressibility compared to convention polyurethane foam. These foams may also be made by a reaction injection molding process. The method includes preparing a shaped polyurethane foam article by: (a) providing a first composition comprising at least one polyol, a chain extender composition and a blowing agent; (b) providing a second composition comprising at least one of a diisocyanate, a capped glycol, and combinations thereof; (c) mixing the first composition and the second composition to form a reaction mixture into a heated mold; and (d) allowing the reaction mixture to form a polyurethane foam; wherein the first composition includes one of: (i) the chain extender composition includes at least one amine compound; (ii) the blowing agent includes a polyurethaneurea aqueous dispersion; and (iii) combinations of (i) and (ii).

IPC Classes  ?

  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
  • C08J 9/02 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
  • B29C 44/38 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/08 - Processes
  • C08G 18/48 - Polyethers
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
  • B29L 31/58 - Upholstery or cushions, e.g. vehicle upholstery or interior padding
  • B29K 75/00 - Use of polyureas or polyurethanes as moulding material
  • B29C 44/34 - Component parts, details or accessories; Auxiliary operations
  • C08G 101/00 - Manufacture of cellular products

23.

Stretch circular knit fabrics with multiple elastic yarns

      
Application Number 15162021
Grant Number 09689092
Status In Force
Filing Date 2016-05-23
First Publication Date 2016-09-15
Grant Date 2017-06-27
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Wynegar, Fred C.
  • Leung, Raymond S. P.
  • Chuang, Cheng-Yuan
  • Cera, Juan

Abstract

Articles of knit fabric having a surface side and a base side, and including a set of ground yarns and a layer of effect yarns, wherein the ground yarns and effect yarns are knit through intermesh points in a predetermined arrangement, wherein the effect yarns are alternately arranged with the ground yarns, and wherein the ground yarns contain at least one elastic fiber and optionally at least one hard fiber, and the effect yarns contain at least one hard fiber or at least one elastic fiber are provided.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D04B 13/00 - Circular weft knitting machines with fixed spring or bearded needles, e.g. loop-wheel machines

24.

Stretch circular knit fabrics with multiple elastic yarns

      
Application Number 15097446
Grant Number 09689091
Status In Force
Filing Date 2014-10-14
First Publication Date 2016-09-01
Grant Date 2017-06-27
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Wynegar, Fred C.
  • Leung, Raymond S. P.
  • Chuang, Cheng-Yuan
  • Cera, Juan

Abstract

An article comprising a knit fabric having a surface side and a base side, and including a set of ground yarns and a layer of effect yarns, wherein the ground yarns and effect yarns are knit through intermesh points in a predetermined arrangement wherein the effect yarns are alternately arranged with the ground yarns and wherein the ground yarns comprise at least one elastic fiber and optionally at least one hard fiber, and the effect yarns comprise at least one hard fiber and optionally an elastic fiber.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads

25.

STRETCH YARNS AND FABRICS WITH MULTIPLE ELASTIC YARNS

      
Application Number 14761238
Status Pending
Filing Date 2013-12-30
First Publication Date 2015-12-10
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Leung, Raymond S. P.

Abstract

Included herein is an articles and methods including a core spun yarn. The core spun yarn includes a sheath of hard fibers and two sets of elastic fibers wherein the sets of elastic fibers have different properties. The properties may differ in one or more ways such as having a different denier, composition or draft. One or both of the sets of elastic fibers can be precovered.

IPC Classes  ?

  • D02G 3/38 - Threads in which fibres, filaments, or yarns are wound with other yarns or filaments
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D02G 3/32 - Elastic yarns or threads

26.

Method for winding an elastic yarn package

      
Application Number 14398937
Grant Number 10202253
Status In Force
Filing Date 2013-03-26
First Publication Date 2015-05-21
Grant Date 2019-02-12
Owner THE LYCRA COMPANY LLC (USA)
Inventor Koskol, Joseph E.

Abstract

A method is provided for winding an elastic yarn into a cylindrical substantially straight-ended yarn package. The method includes feeding an elastic or elastomeric yarn at a substantially constant speed to a tube core to form the yarn package. The yarn package is rotated such that the yarn package with a substantially constant surface speed. The yarn is wound to form layers of helical coils, while providing a helix angle variation of greater than zero up to +/−80%.

IPC Classes  ?

  • B65H 54/40 - Arrangements for rotating packages
  • B65H 54/38 - Arrangements for preventing ribbon winding

27.

Stretch wovens with a control yarn system

      
Application Number 14397832
Grant Number 09982372
Status In Force
Filing Date 2013-03-26
First Publication Date 2015-05-14
Grant Date 2018-05-29
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liao, Tianyi
  • Leung, Raymond S. P.
  • Nefodov, Leonid

Abstract

An article including a woven fabric comprising warp yarns and weft yarns, wherein at least one of either the warp yarns or the weft yarns includes: (a) a corespun elastic base yarn having a denier and including staple fiber and an elastic fiber core; and (b) a separate control yarn selected from the group consisting of a single filament yarn, a multiple filament yarn, a composite yarn, and combinations thereof; having a denier greater than zero to about 0.8 times the denier of the corespun elastic base yarn; wherein the woven fabric includes (1) a ratio of corespun base yarn ends to control yarn ends of up to about 6:1; or (2) a ratio of corespun base yarn picks to control yarn picks of up to about 6:1; or (3) both a ratio of corespun base yarn ends to control yarn ends of up to about 6:1; and a ratio of corespun base yarn picks to control yarn picks of up to about 6:1.

IPC Classes  ?

  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D 1/00 - Woven fabrics designed to make specified articles
  • D02G 3/32 - Elastic yarns or threads

28.

Bicomponent spandex with reduced friction

      
Application Number 14128853
Grant Number 10907279
Status In Force
Filing Date 2011-07-07
First Publication Date 2015-02-12
Grant Date 2021-02-02
Owner The LYCRA Company LLC (USA)
Inventor Smith, Steven W.

Abstract

Disclosed herein are spandex fibers having reduced friction. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive is optionally included where a coalesced multifilament spandex yarn is desired.

IPC Classes  ?

  • D02G 3/32 - Elastic yarns or threads
  • D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D02G 3/36 - Cored or coated yarns or threads
  • D01F 1/10 - Other agents for modifying properties
  • D01D 5/04 - Dry spinning methods
  • D01D 5/34 - Core-skin structure; Spinnerette packs therefor

29.

Fabric including polyolefin elastic fiber

      
Application Number 14245051
Grant Number 10041190
Status In Force
Filing Date 2014-04-04
First Publication Date 2014-08-07
Grant Date 2018-08-07
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Waldbauer, Jr., Robert O.
  • Nguyen, Young D.
  • Liu, Hong
  • Lambert, James Michael

Abstract

An article comprising a yarn comprising an elastomeric propylene-based polymer composition; said polymer composition comprising at least one elastomeric propylene-based polymer, wherein said yarn has a draft greater than 200%; wherein said article is a fabric or a garment.

IPC Classes  ?

  • D01D 5/00 - Formation of filaments, threads, or the like
  • D01D 5/08 - Melt-spinning methods
  • D01D 5/088 - Cooling filaments, threads or the like, leaving the spinnerettes
  • D02G 3/32 - Elastic yarns or threads

30.

Polymer compositions including cellulose ester

      
Application Number 13877347
Grant Number 09637624
Status In Force
Filing Date 2011-10-05
First Publication Date 2014-04-24
Grant Date 2017-05-02
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Bing-Wo, Ronald D.
  • Van De Kerkhof, Robert

Abstract

Included are polymer compositions including a polymer and about 0.1% to 25% by weight of a cellulose additive. The polymer composition is in the form of a film and the cellulose additive may be a cellulose ester such as cellulose acetate butyrate.

IPC Classes  ?

  • C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
  • C08L 75/04 - Polyurethanes
  • C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
  • C08J 5/18 - Manufacture of films or sheets
  • C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
  • C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
  • C08L 1/08 - Cellulose derivatives
  • C08L 1/10 - Esters of organic acids
  • C08L 1/14 - Mixed esters, e.g. cellulose acetate-butyrate

31.

Elastic fabric comprising a polyurethane elastic fiber made from a polyether based polyol

      
Application Number 14119985
Grant Number 09567694
Status In Force
Filing Date 2012-05-24
First Publication Date 2014-03-27
Grant Date 2017-02-14
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Itoh, Shingo
  • Tanaka, Toshihiro
  • Liu, Hong

Abstract

To provide elastic fabric that has comfortable wear and fit even in thin and light fabric by using a high-powered polyurethane elastic fiber that has at least 1.5 times the active force and recovery per unit fineness at the time of 100 to 200% elongation compared to conventional polyurethane elastic fiber. Resolution means an elastic fabric comprising a polyurethane elastic fiber made of a polyol, with a molecular weight between 450 and 1600 with a ratio of weight average molecular weight to number average molecular weight of at least 1.8, an organic diisocyanate compound, and a diamine compound.

IPC Classes  ?

  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads

32.

Bi-component spandex with separable reduced friction filaments

      
Application Number 13997831
Grant Number 09487889
Status In Force
Filing Date 2011-05-18
First Publication Date 2013-11-14
Grant Date 2016-11-08
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Smith, Steven W.
  • Leung, Raymond S. P.

Abstract

Disclosed herein are spandex fibers having reduced friction combined to provide a multiple end spandex package. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive specifically excluded to avoid coalescence among the individual filaments in the yarn. When combined in a yarn package, the multiple filaments are separable.

IPC Classes  ?

  • D02G 3/36 - Cored or coated yarns or threads
  • D02G 3/32 - Elastic yarns or threads
  • D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

33.

Methods of making and using elastic fiber containing an anti-tack additive

      
Application Number 13825129
Grant Number 09315924
Status In Force
Filing Date 2011-09-19
First Publication Date 2013-09-26
Grant Date 2016-04-19
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Pardini, Steven P.
  • Bing-Wo, Ronald D.
  • Teerlink, Thomas W.

Abstract

Methods of making and using anti-tack additives for elastic fibers are disclosed. The elastic fibers include CE additive.

IPC Classes  ?

  • D01D 5/04 - Dry spinning methods
  • D01D 5/06 - Wet spinning methods
  • D01D 5/08 - Melt-spinning methods
  • D01F 1/02 - Addition of substances to the spinning solution or to the melt
  • D01F 6/58 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
  • D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyureas
  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
  • D01F 1/10 - Other agents for modifying properties
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01H 7/00 - Spinning or twisting arrangements

34.

Pantyhose with asymmetrical panty

      
Application Number 13576409
Grant Number 09277771
Status In Force
Filing Date 2011-01-24
First Publication Date 2013-01-03
Grant Date 2016-03-08
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Bakker, Willem
  • Maggi, Daniele
  • Perron, Maurice

Abstract

The invention provides hosiery including a panty portion that is asymmetrical. The hosiery provides a comfortable fit for a variety of different sizes including larger sizes and maternity.

IPC Classes  ?

  • A41B 11/14 - Panti-hose; Body-stockings
  • D04B 1/24 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel

35.

Spandex with high uniformity

      
Application Number 13521883
Grant Number 09279197
Status In Force
Filing Date 2011-01-05
First Publication Date 2012-11-22
Grant Date 2016-03-08
Owner THE LYCRA COMPANY LLC (USA)
Inventor Pardini, Steven P.

Abstract

Disclosed herein are a highly uniform spandex and process for making such spandex. More particularly, the polyurethaneurea of which such spandex is prepared has both dialkylurea and cycloalkylurea ends, wherein a chain terminator composition includes a dialkylamine such as diethylamine and a cylcoalkylamine such as cyclohexylamine.

IPC Classes  ?

  • C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
  • C08G 18/08 - Processes
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
  • C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G 18/30 - Low-molecular-weight compounds
  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/60 - Polyamides or polyester-amides
  • C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
  • C08L 75/00 - Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
  • D01F 6/00 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof
  • D03D 9/00 - Open-work fabrics
  • D03D 13/00 - Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
  • D03D 15/00 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D03D 17/00 - Woven fabrics having elastic or stretch properties due to manner of weaving
  • D03D 19/00 - Gauze or leno-woven fabrics
  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D04B 1/22 - Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
  • D04B 7/16 - Flat-bed knitting machines with independently-movable needles for producing fabrics consisting of, or incorporating, elastic threads
  • D04B 7/24 - Flat-bed knitting machines with independently-movable needles for producing patterned fabrics
  • D04B 9/24 - Circular weft knitting machines with independently-movable needles with special provision for commencing goods, e.g. with non-run edges
  • D04B 11/12 - Straight-bar knitting machines with fixed needles for producing fabrics from, or incorporating, elastic threads
  • D04B 21/14 - Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
  • D04B 21/20 - Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01F 6/72 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyureas

36.

Polyurethane elastic yarn and production method thereof

      
Application Number 13503467
Grant Number 10040892
Status In Force
Filing Date 2010-10-26
First Publication Date 2012-10-11
Grant Date 2018-08-07
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Takayama, Hiroshi
  • Tanaka, Toshihiro
  • Hara, Masashi
  • Liu, Hong

Abstract

[Problem] To provide a polyurethane elastic yarn which has the high strength and ductility sought in polyurethane elastic yarn, and also has excellent durability and heat resistance, as well as little fatigue at low temperature; and a production method thereof. [Means of Resolution] A polyurethane elastic yarn made from polyurethane which has polymer diol and diisocyanate as starting substances, wherein said polyurethane comprises a polyurethane A containing a polybutadiene structure in which the proportion of 1,2-bonded butadiene structure to 1,4-bonded butadiene structure in the molecule is in the range from 91:9 to 20:80.

IPC Classes  ?

  • C08G 18/32 - Polyhydroxy compounds; Polyamines; Hydroxy amines
  • C08G 18/66 - Compounds of groups , , or
  • C08G 18/48 - Polyethers
  • C08G 18/69 - Polymers of conjugated dienes
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C08L 75/04 - Polyurethanes
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01F 6/94 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products

37.

Fusible bicomponent spandex

      
Application Number 13124437
Grant Number 11603605
Status In Force
Filing Date 2009-10-12
First Publication Date 2012-02-09
Grant Date 2023-03-14
Owner The LYCRA Company LLC (USA)
Inventor
  • Smith, Steven W.
  • Liu, Hong
  • Wang, Dong
  • Bakker, Willem

Abstract

Included are multiple component elastic fibers prepared by a solution-spinning process such as dry spinning or wet spinner of spandex fibers including polyurethaneurea and polyurethane compositions. These fibers have a cross-section including at least two separate regions with definable boundaries wherein at least one region defined by the boundaries of the cross-section includes a polyurethaneurea or polyurethane composition. One region of the fiber includes a fusibility improvement additive to enhance adhesion to itself or to a substrate.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D01D 5/32 - Side-by-side structure; Spinnerette packs therefor
  • C08L 75/04 - Polyurethanes
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D02G 3/32 - Elastic yarns or threads
  • D01F 1/10 - Other agents for modifying properties
  • D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D03D 15/56 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads elastic

38.

Fusible bicomponent spandex

      
Application Number 13124438
Grant Number 09435059
Status In Force
Filing Date 2009-10-19
First Publication Date 2011-11-24
Grant Date 2016-09-06
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Smith, Steven W.
  • Liu, Hong
  • Bakker, Willem
  • Weeks, Gregory P.
  • Cera, Juan

Abstract

Included are multiple component elastic fibers prepared by a solution-spinning process such as dry spinning or wet spinner of spandex fibers including polyurethaneurea and polyurethane compositions. These fibers have a cross-section including at least two separate regions with definable boundaries wherein at least one region defined by the boundaries of the cross-section includes a polyurethaneurea or polyurethane composition. One region of the fiber includes a fusibility improvement additive to enhance adhesion to itself or to a substrate.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
  • D01F 1/10 - Other agents for modifying properties
  • D01F 6/70 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyurethanes
  • D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D02G 3/32 - Elastic yarns or threads
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D04B 1/16 - Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads

39.

Bicomponent spandex

      
Application Number 13124433
Grant Number 09869040
Status In Force
Filing Date 2009-10-12
First Publication Date 2011-11-10
Grant Date 2018-01-16
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Smith, Steven W.
  • Liu, Hong
  • Wilson, David A.
  • Elmore, James B.

Abstract

An elastic multiple component fiber comprising a cross-section, wherein at least a first region of said cross-section comprises a polyurethaneurea composition; and comprising a second region.

IPC Classes  ?

  • D01F 8/16 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

40.

Brassiere construction using multiple layers of fabric

      
Application Number 13042814
Grant Number 08235764
Status In Force
Filing Date 2011-03-08
First Publication Date 2011-09-08
Grant Date 2012-08-07
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Baran, Joyce I.
  • Dafniotis, Petros
  • Farmer, Douglas K.

Abstract

A body-shaping garment and fabric is provided. The garment includes an inner fabric layer and an outer fabric layer. The inner fabric layer is placed in an angular orientation relative to the outer fabric layer. Further, the inner fabric layer and the outer fabric layer have sufficiently isotropic hysteresis.

IPC Classes  ?

41.

Elastic fiber containing an anti-tack additive

      
Application Number 12969725
Grant Number 10039855
Status In Force
Filing Date 2010-12-16
First Publication Date 2011-06-23
Grant Date 2018-08-07
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Lambert, James Michael
  • Nguyen, Young D.
  • Waldbauer, Jr., Robert O.
  • Liu, Hong

Abstract

Embodiments of the disclosure include elastomeric stretch fibers containing an anti-tack agent, methods of preparing the fiber, methods of using this fiber, articles including this fiber, and the like.

IPC Classes  ?

  • D01F 1/10 - Other agents for modifying properties
  • A61L 15/14 - Use of materials characterised by their function or physical properties
  • A61L 15/24 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
  • C08L 23/14 - Copolymers of propene
  • D01F 6/30 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
  • D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
  • C08K 5/09 - Carboxylic acids; Metal salts thereof; Anhydrides thereof
  • C08K 5/20 - Carboxylic acid amides
  • C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

42.

Garment bands including polymer compositions

      
Application Number 12990032
Grant Number 09854861
Status In Force
Filing Date 2009-05-01
First Publication Date 2011-02-24
Grant Date 2018-01-02
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Covelli, Carmen A.
  • Farmer, Douglas K.
  • Rose, Becky J.
  • Weeks, Gregory P.

Abstract

Articles comprising garments with at least one opening layers are included. The articles may include an elastic polymer composition such as a film, a melt or an aqueous dispersion.

IPC Classes  ?

43.

Spinning cell for synthetic fiber

      
Application Number 12922554
Grant Number 08678799
Status In Force
Filing Date 2009-03-19
First Publication Date 2011-01-27
Grant Date 2014-03-25
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Casey, John T.
  • Elmore, James B.
  • Deturk, Charles P
  • Wilson, David A.

Abstract

Included is a spinning cell for a synthetic fiber such as spandex. The spinning cell includes a top closure which reduces or eliminates solvent vapor transfer, where solvent vapor process gas(es) may leave the cell and room air may be introduced into the spinning cell. A bottom closure device may also be included.

IPC Classes  ?

  • D01D 5/04 - Dry spinning methods
  • D01D 4/08 - Supporting spinnerettes or other parts of spinnerette packs

44.

Elastic fiber containing an anti-tack additive

      
Application Number 12726006
Grant Number 08377554
Status In Force
Filing Date 2010-03-17
First Publication Date 2010-12-09
Grant Date 2013-02-19
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Martin, Kenneth Edward
  • Bing-Wo, Ronald D.
  • Lock, Robert L.

Abstract

Anti-tack additives for elastic fibers and methods of preparing the same are included. The elastic fibers include a substituted cellulose additive.

IPC Classes  ?

  • D02G 3/00 - Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads

45.

Non-textile polymer compositions and methods

      
Application Number 12559114
Grant Number 09328190
Status In Force
Filing Date 2009-09-14
First Publication Date 2010-03-11
Grant Date 2016-05-03
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Iavarone, Charles Frank
  • Lambert, James Michael
  • Liu, Hong
  • Menot, Sonia
  • Stoppa, Federica Maria Roberta

Abstract

Included are nylon and polyurethane urea compositions such as in the form of powders, beads and flock to be included in extruded and molded articles containing a thermoplastic resin such as nylon 12. The addition of the powders, beads or flock improve flexibility and shape retention of such molded articles, for example in eyewear frames.

IPC Classes  ?

  • C09D 175/04 - Polyurethanes
  • D06M 15/564 - Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
  • D06M 101/38 - Polyurethanes
  • D06M 23/08 - Processes in which the treating agent is applied in powder or granular form
  • A61K 8/87 - Polyurethanes
  • A61K 8/88 - Polyamides
  • A61Q 19/00 - Preparations for care of the skin
  • A61Q 19/10 - Washing or bathing preparations
  • C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
  • C08G 18/08 - Processes
  • C08G 18/48 - Polyethers
  • C08G 18/66 - Compounds of groups , , or
  • C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
  • C11D 3/37 - Polymers
  • C11D 3/50 - Perfumes
  • D06M 15/59 - Polyamides; Polyimides
  • A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
  • A61Q 1/12 - Face or body powders, e.g. for grooming, adorning or absorbing

46.

Stretch wovens with separated elastic yarn system

      
Application Number 12020165
Grant Number 07762287
Status In Force
Filing Date 2008-01-25
First Publication Date 2009-07-30
Grant Date 2010-07-27
Owner THE LYCRA COMPANY LLC (USA)
Inventor Liao, Tianyi

Abstract

Included is a woven fabric having warp yarns and weft yarns. Either warp yarn or weft yarn or both warp and weft yarns have two separate systems of yarns. The systems of yarns include a hard yarn forming the main body of fabric and a composite covered elastic yarn with an elastic fiber core; wherein the fabric has an outer face side, a back side, and the fabric includes at least one of: (a) a weaving pattern where the composite yarn and at least one adjacent hard yarn pass over the same pick when the composite yarn is on the outer surface; (b) the ratio of hard yarn denier to composite yarn denier is at least 1:1; and (c) the composite yarn floats over no more than 5 picks on the outer face side.

IPC Classes  ?

  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads
  • D03D 25/00 - Woven fabrics not otherwise provided for

47.

High-loft nonwoven including stabilizer or binder

      
Application Number 12269412
Grant Number 09499929
Status In Force
Filing Date 2008-11-12
First Publication Date 2009-06-04
Grant Date 2016-11-22
Owner THE LYCRA COMPANY LLC (USA)
Inventor Farmer, Douglas K.

Abstract

The present invention is directed to a high-loft nonwoven including a binder or stabilizer including a polyurethaneurea composition that provides flexibility and compression recovery to the nonwoven structure. Included is a polyurethaneurea dispersion as a stabilizer or binder for the short-length fibers which create the high-loft nonwoven structure. The invention is useful as an improved alternative for such things as polyurethane foam in applications such as bra cups.

IPC Classes  ?

  • B32B 27/04 - Layered products essentially comprising synthetic resin as impregnant, bonding, or embedding substance
  • D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
  • D04H 1/00 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H 1/541 - Composite fibres e.g. sheath-core, sea-island or side-by-side; Mixed fibres
  • D04H 1/587 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
  • B32B 5/08 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments the fibres or filaments of a layer being specially arranged or being of different substances
  • A41C 3/12 - Component parts
  • A41C 5/00 - Machines, appliances, or methods for manufacturing corsets or brassières
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
  • B29K 105/00 - Condition, form or state of moulded material
  • B29K 105/04 - Condition, form or state of moulded material cellular or porous
  • B29L 31/48 - Wearing apparel

48.

Stretch woven fabrics

      
Application Number 12265914
Grant Number 07637091
Status In Force
Filing Date 2008-11-06
First Publication Date 2009-03-05
Grant Date 2009-12-29
Owner THE LYCRA COMPANY LLC (USA)
Inventor Liao, Tianyi

Abstract

The invention provides a polyester bicomponent core spun yarn comprising a sheath of at least one hard fiber and having an English cotton count of from about 5 to about 60 and a core of bicomponent polyester filament. The invention further includes a fabric substantially free of grin-through of the bicomponent polyester filament.

IPC Classes  ?

  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
  • D02G 3/22 - Yarns or threads characterised by constructional features

49.

Stretch woven fabrics

      
Application Number 11941279
Grant Number 07461499
Status In Force
Filing Date 2007-11-16
First Publication Date 2008-03-20
Grant Date 2008-12-09
Owner THE LYCRA COMPANY LLC (USA)
Inventor Liao, Tianyi

Abstract

The invention provides a polyester bicomponent core spun yarn comprising a sheath of at least one hard fiber and having an English cotton count of from about 5 to about 60 and a core of bicomponent polyester filament. The invention further includes a fabric substantially free of grin-through of the bicomponent polyester filament.

IPC Classes  ?

  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
  • D02G 3/22 - Yarns or threads characterised by constructional features

50.

Spandex from poly(tetramethylene-co-ethyleneether)glycols blended with polymeric glycols

      
Application Number 11431191
Grant Number 08420765
Status In Force
Filing Date 2006-05-08
First Publication Date 2007-05-24
Grant Date 2013-04-16
Owner THE LYCRA COMPANY LLC (USA)
Inventor Palmer, Jr., Charles F.

Abstract

A polyurethaneurea composition comprises a reaction product of at least one diisocyanate compound, a polymeric glycol, a poly(tetramethylene-co-ethyleneether) glycol comprising constituent units derived by copolymerizing tetrahydrofuran and ethylene oxide (EO) wherein the portion of the constituent units derived from ethylene oxide is present in the poly(tetramethylene-co-ethyleneether) glycol from greater than about 37 to about 70 mole percent, at least one diamine chain extender, and at least one chain terminator. The invention further relates to the use of blends of polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols as the soft segment base in spandex compositions. The invention also relates to new polyurethane compositions comprising polymeric glycols and poly(tetramethylene-co-ethyleneether) glycols, and their use in spandex.

IPC Classes  ?

51.

Brassiere construction using multiple layers of fabric

      
Application Number 11248787
Grant Number 07300331
Status In Force
Filing Date 2005-10-11
First Publication Date 2007-04-12
Grant Date 2007-11-27
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Baran, Joyce I.
  • Dafniotis, Petros
  • Farmer, Douglas K.

Abstract

A brassiere or breast shaping garment has a pair of breast-receiving cups, each of which is formed with an inner fabric layer and an outer fabric layer. The inner fabric layer is placed in an angular orientation relative to the outer fabric layer. Further, the inner fabric layer and the outer fabric layer have sufficiently isotropic hysteresis.

IPC Classes  ?

52.

Method and apparatus for circular knitting with elastomeric yarn that compensate for yarn package relaxation

      
Application Number 11109381
Grant Number 07540174
Status In Force
Filing Date 2005-04-19
First Publication Date 2006-11-02
Grant Date 2009-06-02
Owner THE LYCRA COMPANY LLC (USA)
Inventor Snijders, Jacobus-Michiel-Hubertus

Abstract

When elastomeric yarns are unwound and fed to the needles of a circular knitting apparatus, a yarn package relaxation profile is set, or determined, with corresponding adjustments made to the unwinding speed based on such package relaxation profile. Variably compensating for a varying package relaxation while knitting results in more uniform properties in a circular knit fabric and improved elastomeric yarn yield.

IPC Classes  ?

  • D04B 15/44 - Tensioning devices for individual threads

53.

Stretch woven fabrics

      
Application Number 11055939
Grant Number 07310932
Status In Force
Filing Date 2005-02-11
First Publication Date 2006-08-17
Grant Date 2007-12-25
Owner THE LYCRA COMPANY LLC (USA)
Inventor Liao, Tianyi

Abstract

The invention provides a polyester bicomponent core spun yarn comprising a sheath of at least one hard fiber and having an English cotton count of from about 5 to about 60 and a core of bicomponent polyester filament. The invention further includes a fabric substantially free of grin-through of the bicomponent polyester filament.

IPC Classes  ?

  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made
  • D02G 3/36 - Cored or coated yarns or threads

54.

Solvent free aqueous polyurethane dispersions and adhesive films therefrom for stretch fabrics

      
Application Number 11056067
Grant Number 07240371
Status In Force
Filing Date 2005-02-11
First Publication Date 2006-08-17
Grant Date 2007-07-10
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Liu, Hong
  • Covelli, Carmen A.
  • Farmer, Douglas K.

Abstract

Novel aqueous polyurethane dispersions and adhesive films formed therefrom are provided. The aqueous polyurethane dispersions are provided in solvent-free systems of a prepolymer comprising at least one polyether or polyester polyol, a mixture of MDI isomers, and a diol. The adhesive films from such dispersions can be heat-activated for bonding, lamination, and adhesion of textile fabrics, including stretch fabrics.

IPC Classes  ?

  • A41B 9/00 - Undergarments
  • A41B 9/06 - Undershirts; Chemises
  • A41D 13/00 - Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
  • A41F 9/00 - Belts, girdles, or waistbands for trousers or skirts
  • D03D 15/08 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used using stretchable or elastic threads

55.

Knit-by-design method and fabric

      
Application Number 11303594
Grant Number 07779655
Status In Force
Filing Date 2005-12-16
First Publication Date 2006-06-22
Grant Date 2010-08-24
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Chuang, Cheng-Yuan
  • Laycock, Graham
  • Leung, Raymond S. P.

Abstract

The invention provides a method for knitting fabric with bare spandex comprising: providing bare spandex yarn; providing hard yarn; drafting the bare spandex; knitting fabric from the hard yarn and the drafted bare spandex with the hard yarn and the drafted bare spandex plated in every course; and contacting the knit fabric with a continuous phase aqueous solution under conditions of temperature and pressure for a time sufficient to set the bare spandex without heating the knit fabric on a tenter frame above 160° C. in air having a relative humidity of less than 50%. The invention further provides a bare spandex-containing knit fabric containing spandex in every knit course that has been exposed to manufacturing process temperature no higher than 160° C. as shown by molecular weight analysis of the spandex and that exhibits wash shrinkage of less than about 14%.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads

56.

Bicomponent fiber and yarn comprising same

      
Application Number 10830700
Grant Number 07195819
Status In Force
Filing Date 2004-04-23
First Publication Date 2006-02-02
Grant Date 2007-03-27
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Hietpas, Geoffrey D.
  • Smith, Steven W.

Abstract

The invention provides a bicomponent staple fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) wherein the bicomponent fiber has a substantially oval cross-section shape having an aspect ratio A:B of about 2:1 to about 5:1 wherein A is a fiber cross-section major axis length and B is a fiber cross-section minor axis length, a polymer interface substantially perpendicular to the major axis, a cross-section configuration selected from the group consisting of side-by-side and eccentric sheath-core, a tenacity at 10% elongation of about 1.1 cN/dtex to about 3.5 cN/dtex, a free-fiber length retention of about 40% to about 85%, and a tow crimp development value of about 30 to 55%, and a spun yarn comprising the bicomponent staple fiber.

IPC Classes  ?

  • D01F 8/00 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the like; Manufacture thereof

57.

Knit by design method and fabric

      
Application Number 11203078
Grant Number 07634924
Status In Force
Filing Date 2005-08-12
First Publication Date 2006-01-19
Grant Date 2009-12-22
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Chuang, Cheng-Yuan
  • Laycock, Graham H.
  • Leung, Raymond S. P.
  • Singewald, Elizabeth Todd
  • Szanto, Peter George
  • Wynegar, Fred

Abstract

Circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are disclosed that include a bare elastomeric material plated with spun and/or continuous filament hard yarns. The circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece are manufactured by a method that does not require a dry heat setting step. The method requires drafting the bare elastomeric material no more than about 2.5× its original length when knitting to form the circular knit, elastic fabrics of at least one of single jersey, French terry, and fleece.

IPC Classes  ?

  • D04B 1/18 - Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads

58.

Elastic nonwoven sheet

      
Application Number 11112537
Grant Number 08067318
Status In Force
Filing Date 2005-04-22
First Publication Date 2005-10-27
Grant Date 2011-11-29
Owner THE LYCRA COMPANY LLC (USA)
Inventor Martin, Kenneth E.

Abstract

This invention relates to stretchable nonwoven sheets prepared by substantially uniformly impregnating a necked nonwoven substrate or an easily extensible as-made nonwoven substrate with an elastomeric polymer by treatment with an elastomeric polymer solution. The nonwoven sheet is useful in the manufacture of diapers and other hygiene articles.

IPC Classes  ?

  • B32B 5/04 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments characterised by a layer being specifically extensible by reason of its structure or arrangement
  • C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
  • D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions

59.

Sleeve-like knitted structure for use as a castliner

      
Application Number 10878833
Grant Number 06981955
Status In Force
Filing Date 2004-06-28
First Publication Date 2005-02-03
Grant Date 2006-01-03
Owner THE LYCRA COMPANY LLC (USA)
Inventor
  • Schultze, Claudia
  • Coulston, George W.

Abstract

A castliner in the form of a three-dimensionally knitted sleeve comprises a microdenier yarn, and/or a spandex yarn, in particular, a spandex yarn having a flatter stress-strain curve than traditional spandex yarns. The use of the microdenier yarn contributes to the superior cushioning effect. The stretch and recovery properties of the particular spandex yarn contribute to superior fit and reduction of pressure points on the limb or body part to which the castliner is applied. Furthermore, the castliner is rendered water resistant and has significantly improved antimicrobial properties, both of which reduce incidents of skin irritation and unpleasant smell. As a result, the patient wearing the castliner of the invention is able to bathe and get wet without otherwise replacing the hard casting and castliner after such events.

IPC Classes  ?

  • A61F 5/00 - Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices

60.

Polyamide yarn process

      
Application Number 10656057
Grant Number 08052906
Status In Force
Filing Date 2003-09-05
First Publication Date 2004-07-01
Grant Date 2011-11-08
Owner THE LYCRA COMPANY LLC (USA)
Inventor Steele, Ronald E.

Abstract

A process for making a synthetic melt spun polyamide filament in a solid phase polycondensation apparatus is disclosed. The flow rate of the purge (make-up) gas to the apparatus is increased, and the overall pressure in the apparatus is decreased, as compared to solid phase polycondensation apparatus of the prior art. As a result, the removal of the thermal degradation impurity from the polymer flake contributes to improving the yarn quality and at the same time, extends the spinneret wipe life.

IPC Classes  ?

  • B28B 3/20 - Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
  • B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
  • D02G 3/02 - Yarns or threads characterised by the material or by the materials from which they are made