Elastomer compositions for bonding to fluoropolymers

Details Elastomer compositions for bonding to fluoropolymers Elastomer compositions for bonding to fluoropolymers

C - Chemistry, Metallurgy

08

J

C08J 5/12 (2006.01) B32B 25/04 (2006.01) B32B 27/08 (2006.01) C08L 9/02 (2006.01) C08L 19/00 (2006.01) C08L 27/12 (2006.01) C08L 71/03 (2006.01)

Patent

CA 2314240

A method for increasing the adhesion of a first layer comprising a fluoropolymer substantially free of interpolymerized units derived from vinylidene fluoride to a second layer comprising a curable elastomer is described. The method comprises adding a dehydrofluorinating composition to the curable elastomer, contacting the layers and curing the layered article so formed. The resulting multilayer compositons and articles are also disclosed.

L'invention concerne un procédé permettant d'améliorer l'adhérence entre une première couche comprenant un polymère fluoré sensiblement exempt d'unités interpolymérisées dérivées du fluorure de vinylidène et une deuxième couche comprenant un élastomère polymérisable. Le procédé consiste à ajouter à l'élastomère polymérisable une composition de déhydrofluoration, à mettre les couches en contact et à effectuer la polymérisation de l'article à couches multiples ainsi formé. L'invention concerne également les compositions et articles multicouche ainsi obtenus.

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