Abstract: Provided is a composition comprising a fluorocarbon polymer, a radical initiator, and a first and second curing co-agent. In one aspect, the first curing co-agent is represented by the formula CH2?CH—Rf—CH?CH2, wherein Rf is selected from a divalent perfluoroaliphatic group optionally containing one or more O atoms, a perfluoroarylene group, and a perfluoroalkarylene group. In another aspect, the first curing co-agent is selected from the group consisting of an allyl cyanurate, an allyl isocyanurate, a methallyl cyanurate, and a methallyl isocyanurate. In either aspect, the second curing co-agent is an organic compound including at least one terminal alkene, with the proviso that the second curing co-agent is not a member of the group of first curing co-agents. Also provided are the reaction product of these compositions and a method of making an elastomer comprising curing these compositions.

Abstract: Provided is a composition comprising a fluorocarbon polymer, a radical initiator, and a first curing co-agent. The first curing co-agent comprises at least one silicon-containing group selected from a hydrocarbyl silane and a hydrocarbyl silazane. Furthermore, the first curing co-agent is substantially free of siloxane groups and comprises at least one polymerizable ethylenically unsaturated group. Also provided are the reaction product of these compositions and a method of making an elastomer comprising curing these compositions.

Abstract: The present invention provides the use of a mineral oil in a fluoroelastomer composition comprising a fluoroelastomer to improve the flow of said composition during processing to form an article therefrom and/or to improve the release from a mold of a vulcanized article produced from said fluoroelastomer composition. Further provide are a fluoroelastomer composition that includes a mineral oil, a method of making an article therewith and a method of preparing the fluoroelastomer composition.

Abstract: The present invention relates to a method of bonding a fluoropolymer layer to a silicone layer by (i) providing a fluoropolymer layer comprising a fluoropolymer capable of being dehydrofluorinated (ii) providing a silicone layer comprising a curable silicone composition comprising (a) an organopolysiloxane compound having SiH groups, (b) an organopolysiloxane compound having aliphatic carbon-carbon unsaturated bonds, (c) a hydrosilylation catalyst and (d) an amino compound having (1) an amine function of the formula —NHR wherein R is hydrogen or an organic group and (2) a silyl group of the formula —SiR1n(OR2)3-n wherein R1 represents an alkyl or aryl group, R2 represents an alkyl group of 2 to 6 carbon atoms and n is 1 or 2 and (iii) contacting said silicone layer and said fluoropolymer layer and causing said curable silicone composition of said silicone layer to cure.

Abstract: The present invention provides a method of bonding a fluoroelastomer layer to a silicone rubber layer, the method comprising the steps of: (i) providing a layer of a curable fluoropolymer composition comprising (a) a fluoropolymer capable of being dehydrofluorinated thereby forming reactive sites, (b) a dehydrofluorinating agent, (c) a curing agent capable of cross-linking said fluoropolymer through reaction with said reactive sites and (d) a peroxide; (ii) contacting said layer of said curable fluoropolymer composition with a curable silicone layer comprising a silicone resin and a peroxide; curing said layers while being in contact with each other at conditions sufficient to (a) cause dehydrofluorination of said fluoropolymer and cross-linking of said fluoropolymer layer and (b) cross-linking of said silicone resin, said curing being carried out in the presence of a bonding promoter selected from the group consisting of an organic compound having one or more nucleophilic groups capable of reacting with

Abstract: The present invention provides a method of bonding a fluoroelastomer layer to a silicone rubber layer, the method comprising the steps of: