DuPont Electronics, Inc.

United States of America

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IPC Class
B32B 27/00 - Layered products essentially comprising synthetic resin 1
B32B 3/08 - 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 features of form at particular places, e.g. in edge regions characterised by added members at particular parts 1
B32B 7/02 - Physical, chemical or physicochemical properties 1
E01C 11/26 - Permanently-installed heating or blowing devices 1
E01H 5/10 - Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat 1
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Found results for  patents

1.

PUNCTURE-RESISTANT SHEET HEATER AND STRUCTURES MADE THEREWITH

      
Document Number 03076431
Status Pending
Filing Date 2020-03-20
Open to Public Date 2020-09-22
Owner
  • DUPONT ELECTRONICS, INC. (USA)
  • DDP SPECIALTY ELECTRONIC MATERIALS US, INC. (USA)
Inventor
  • Wu, Wei
  • Blackman, Gregory Scott
  • Costeux, Stephane
  • Singletary, James Neal

Abstract

A puncture-resistant, electrically-energized sheet heater comprises a conductive polymeric film laminated between a top puncture-resistant, polymeric protective layer and a bottom backing layer that may comprise an insulated backing layer of extruded polystyrene closed-cell foam board. The heater is appointed to be placed beneath, or embedded in, a pavement material, and energized to provide heat to remove frozen precipitation from the pavement, or prevent it from accumulating thereon.

IPC Classes  ?

  • H05B 3/36 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
  • B32B 3/08 - 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 features of form at particular places, e.g. in edge regions characterised by added members at particular parts
  • B32B 7/02 - Physical, chemical or physicochemical properties
  • B32B 27/00 - Layered products essentially comprising synthetic resin
  • E01C 11/26 - Permanently-installed heating or blowing devices
  • E01H 5/10 - Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat
  • E04D 13/00 - Special arrangements or devices in connection with roof coverings; Roof drainage
  • F24D 13/02 - Electric heating systems solely using resistance heating, e.g. underfloor heating