E.I. DuPont de Nemours and Company

United States of America

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IPC Class
C08K 3/013 - Fillers, pigments or reinforcing additives 1
C08K 3/04 - Carbon 1
C08K 5/00 - Use of organic ingredients 1
C08K 5/14 - Peroxides 1
C08K 5/25 - Carboxylic acid hydrazides 1
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1.

Fluoroelastomer compounds

      
Application Number 16066508
Grant Number 11078354
Status In Force
Filing Date 2017-02-17
First Publication Date 2020-09-10
Grant Date 2021-08-03
Owner E.I. DEUPONT DE NEMOURS AND COMPANY (USA)
Inventor Bish, Christopher J.

Abstract

The present invention is directed to compounds comprising a perfluoroelastomer and a blend of two different particle size carbon blacks that, when cured with a curing agent, comprise a heterocyclic or perfluorinated crosslink. Such compounds comprise copolymerized units of unsaturated fluorinated olefins, a perfluoro(vinyl ether), and a cure site fluorinated monomer having a nitrile cure site, plus a blend of carbon blacks. Articles cured from these compounds exhibit improved sealing force.

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