A method is disclosed for preparing an elastomeric composition comprising: (I) mixing (A) a silicone base comprising a curable organopolysiloxane, (B) an optional crosslinking agent, (C) a cure agent in an amount sufficient to cure said organopolysiloxane; (II) mixing the product of step (I) with (D) a fluorocarbon elastomer, (E) an optional compatibilizer, (F) an optional catalyst, and (III) statically vulcanizing the organopolysiloxane, wherein the weight ratio of fluorocarbon elastomer (D) to silicone base (A) in the elastomeric base composition ranges from 95:5 to 30:70.The cured rubber compositions obtained from the fluorocarbon elastomeric compositions herein have good fuel resistance properties.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a U.S. national stage filing under 35 U.S.C. .sctn.371 of PCT Application No. PCT/US05/019004 filed on 01 Jun. 2005, currently pending, which claims the benefit of U.S. Provisional Patent Application No. 60/584,455 filed 30 Jun. 2004 under 35 U.S.C. .sctn.119 (e). PCT Application No. PCT/US05/019004 and U.S. Provisional Patent Application No. 60/584,455 are hereby incorporated by reference.
