Patent ID: 7547742

Claim:
A method for preparing a fluoroplastic composition comprising: (I) mixing (A) a fluorocarbon resin having a glass transition temperature above 23° C., (B) a hydroxy end-blocked methyl vinyl siloxane compatibilizer, (C) an organic peroxide catalyst, (II) mixing the product of step (I) with (D) a silicone base comprising a organopolysiloxane gum containing at least 2 alkenyl groups having 2 to 20 carbon atoms and having a sufficient molecular weight to impart a Williams plasticity number of at least 30 as determined by the American Society for Testing and Materials (ASTM) test method D 926, (E) a radical initiator in an amount sufficient to cure said organopolysiloxane; and (III) dynamically vulcanizing the organopolysiloxane, wherein the weight ratio of fluorocarbon resin (A) to silicone base (D) in the elastomeric base composition ranges from 95:5 to 30:70.