Fluoroelastomer compositions

Details Fluoroelastomer compositions Fluoroelastomer compositions

2005-10-18

2005-10-18

Zalukaeva, Tatyana (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S279000, C525S326200

Reexamination Certificate

active

06956085

ABSTRACT:
Provided is a composition comprising a fluoropolymer comprising interpolymerized units derived from a nitrile cure site monomer, and an amino-substituted aromatic curative compound having at least one substituent other than hydrogen, wherein the net effect of the substituent(s) is not electron withdrawing, the curative has a pKa above about 12, the compound may contain one or more heteroatom(s) provided that no heteroatom directly bonded to a hydrogen is in the position ortho to the amino group, and one or more substituents may together form a ring, which ring may be aromatic and may include one or more heteroatoms(s). Also provided are the reaction products of the fluoropolymer and the curative described, cured articles, and a method of making the fluoropolymer compositions and articles.

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