Patent ID: 7294677
Filing Date: 2007-11-13
Classification: C07C,C08K

Abstract:
1. A method of making a fluoroelastomer composition, the method comprising sequentially: (a) providing a reaction product of first and second compositions, wherein the first composition comprises a first component represented by Formula I: wherein Q+ is a non-interfering organophosphonium, organosulfonium, or organoammonium cation; each R independently represents H, halogen, a hydrocarbyl group or a halogenated hydrocarbyl group, wherein at least one carbon atom of the hydrocarbyl group may be further substituted with one or more heteroatoms selected from N, O and S; R′ represents H, a hydrocarbyl group, or a halogenated hydrocarbyl group, wherein at least one carbon atom of the hydrocarbyl group may be further substituted with one or more heteroatoms selected from N, O and S; or any two of R and R′ may together form a divalent hydrocarbylene group, wherein at least one carbon atom of the hydrocarbylene group may be further substituted by one or more heteroatoms selected from N, O and S; and the second composition comprises a second component represented by Formula II: wherein each R″ independently represents F or CF b represents any positive integer; Z represents a b-valent organic moiety free of interfering groups; and (b) combining the reaction product from step (a) with at least one component comprising a fluoropolymer to form a curable composition, the fluoropolymer comprising at least one interpolymerized monomer unit having a nitrogen-containing cure site; and (c) at least partially curing the curable composition to form a fluoroelastomer.