Patent ID: 7148300
Filing Date: 2006-12-12
Classification: C08F,C08K

Abstract:
1. A compound comprising: (a) an amorphous copolymer including interpolymerized units derived from one or more perfluorinated ethers of the formula: wherein R f is a perfluorinated (C1–C4)alkyl group, m=1–4, n=0–6, and p=1–2, or wherein: m=1–4; R f is a perfluorinated aliphatic group optionally eontaining O atoms; and (b) a curable component including at least one filler, present in an amount of at least 10 parts per 100 parts of component (a), such that upon vulcanization the resulting compound has a Shore A hardness according to ASTM D2240 of 60 or greater, a TR-10 of −25° C. or less, and a permeation rate of 65 (g-mm/m