Novel poly(siloxane-acrylate) elastomers with...

Details Novel poly(siloxane-acrylate) elastomers with... Novel poly(siloxane-acrylate) elastomers with...

C - Chemistry, Metallurgy

08

G

C08G 77/388 (2006.01) C08G 77/26 (2006.01) C08G 77/54 (2006.01) C08L 83/08 (2006.01) C08L 83/14 (2006.01)

Patent

CA 2337286

Poly(siloxane-acrylate) elastomers with low weep characteristics are formed by the steps of: (A) forming an amine functional alkenyl-containing siloxane by mixing and heating: (a) a polydiorganosiloxane, (b) an amino-functional silane hydrolyzate, (c) an alkenylorganosiloxane, and (d) a base equilibration catalyst, then (B) reacting, at room temperature, the amine functional alkenyl-containing siloxane with an acrylate to form a curable alkenyl-containing poly(siloxane-acrylate) with oxycarbonylethyleneimino- containing organic groups, and (C) curing the alkenyl-containing poly(siloxane- acrylate) to form an poly(siloxane-acrylate) elastomer.

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