Patent ID: 6416819
Filing Date: 2002-07-09
Classification: C08K,C08L,C09D,Y10T

Abstract:
A method of preparing a composition containing a fluorocarbon thermoplastic random copolymer comprising the steps of:(A) providing a mixture having: (i) a fluorocarbon thermoplastic random copolymer having subunits of: â€”(CH2CF2)xâ€”, â€”(CF2CF(CF3)yâ€”, and â€”(CF2CF2)zâ€”, â€ƒwherein x is from 1 to 50 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, x +y+z equals 100 mole percent; (ii) a filler comprising zinc oxide; (iii) a curable amino functional polydimethyl siloxane copolymer comprising aminofunctional units selected from the group consisting of (aminoethylaminopropyl) methyl, (aminopropyl) methyl and (aminopropyl) dimethyl; and (iv) antimony-doped tin oxide particles; (v) a bisphenol residue curing agent; and (B) curing the mixture for 5 to 10 hours at a temperature in the range of 25Â° C. to 275Â° C.