Patent ID: 6153681
Filing Date: 2000-11-28
Classification: C08F

Abstract:
A composition comprising:a melt processible polymeric material which has a tensile set of 10 percent or less, when tested at 100 percent elongation using a modified ASTM D 412-92 test where the sample thickness is about 0.64 mm and the grip separation rate is 5.08 cm/min and includes (A) from about 40 to about 90 percent by weight of an elastomeric portion which is polymeric and has (i) repeat units of formula I--CF.sub.2 CF.sub.2 -- (I)and (ii) repeat units of formula II--CF.sub.2 CF(OC.sub.n H.sub.2n+1 O.sub.m)-- (II),wherein the n for each repeat unit of formula II is independently an integer of 1 to 6, and the m for each repeat unit of formula II is independently 0, 1, 2 or 3; and (B) a crystalline portion which is polymeric and contains fluorinated polymer.