Polymer composition
AssigneeDow Corning Corporation
InventorsErnst Gerlach, Edouard Joseph, Klaus Kunz, Dieter Zaulig
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Abstract
A polymer composition comprises a polymer matrix and a siloxane-containing additive which is substantially incompatible with the polymer matrix, wherein the siloxane of the additive has a hydroxy, alkoxy or epoxy functionality, and a functionality which is capable of bonding with a silicone elastomer-forming composition which is curable by a hydrosilylation reaction. The polymer matrix preferably comprises polyphenylenesulphide, and the additive preferably comprises hydroxy-terminated methylvinyl siloxane. The composition is capable of forming plastics articles to which cured silicone elastomers can adhere.
Claims11
A polymer composition which comprises a polymer matrix and a siloxane-containing additive which is substantially incompatible with the polymer matrix, wherein the siloxane of the additive has a first finctionality selected from the group consisting of hydroxy, alkoxy and epoxy groups, and a second finctionality which is capable of bonding with a silicone elastomer-forming composition which is curable by a hydrosilylation reaction.
A method for preparing a plastics article having a silicone elastomer cured by a hydrosilylation reaction adhered thereto, which method comprises preparing a polymer composition which comprises a polymer matrix and a siloxane-containing additive which is substantially incompatible with the polymer matrix, wherein the siloxane of the additive has a first functionality selected from the group consisting of hydroxy, alkoxy and epoxy groups, and a second finctionality which is capable of bonding with a silicone elastomer-forming composition which is curable by a hydrosilylation reaction by mixing together the siloxane-containing additive and the polymer matrix, forming the plastics article from the polymer composition, applying a silicone elastomer-forming composition which is curable by a hydrosilylation reaction to the plastics article, and allowing the silicone-elastomer forming composition to cure by a hydrosilylation reaction.
Dependencies are inferred from the claim text.