Fluoroelastomer compositions and methods of producing same

Details Fluoroelastomer compositions and methods of producing same Fluoroelastomer compositions and methods of producing same

C - Chemistry, Metallurgy

08

K

C08K 5/109 (2006.01) C08K 5/00 (2006.01) C08L 27/12 (2006.01)

Patent

CA 2280256

Briefly, in one aspect, this invention provides curable fluoroelastomer compositions comprising: (a) a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (b) at least one organo-onium compound such as those selected from the group consisting of ammonium, arsonium, phosphonium, stibonium, amino-phosphonium, phosphorane (e.g. triarylphosphorane), iminium, and sulfonium compounds; and (c) one or more carbonate-blocked cross-linking agents. Methods of curing fluoroelastomer compositions, and articles made therefrom are also described.

L'invention concerne entre autres des compositions de fluoroélastomères durcissables contenant: (a) un polymère fluoré ou un mélange de polymères fluorés comprenant chacun des motifs interpolymérisés dérivés d'au moins un monomère fluoré éthyléniquement insaturé; (b) au moins un composé organo-onium, sélectionné par exemple dans le groupe comprenant l'ammonium, l'arsonium, le phosphonium, le stibonium, l'amino-phosphonium, le phophorane (par ex. le triarylphosphorane), l'iminium, et des composés de sulfonium; et (c) au moins un agent de réticulation à blocage au carbonate. L'invention concerne également des procédés pour durcir des compositions de fluoroélastomères, ainsi que des articles produits à partir desdites compositions.

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