Organopolysiloxane compositions and elastomers formed therefrom

Details Organopolysiloxane compositions and elastomers formed therefrom Organopolysiloxane compositions and elastomers formed therefrom

C - Chemistry, Metallurgy

08

L

400/4107

C08L 51/08 (2006.01) C08L 83/04 (2006.01) C08L 83/06 (2006.01)

Patent

CA 1122345

ABSTRACT OF THE DISCLOSURE Compositions are provided herein which are stable when stored under anhydrous conditions, but which when exposed to atmospheric moisture, cross- link to form elastomers. Such compositions include (1) an organopolysiloxane having terminal condensable groups, (2) a silicon compound having at least 3 Si-bonded hydrolyzable groups per molecule and (3) from 30 to 100 percent by weight, based on the weight of the organopolysiloxane (1), of a powder ob- tained from the homopolymerization or copolymerization of an acrylonitrile in an aqueous medium. The elastomers so formed exhibit greatly improved adhesion to wood, including untreated wood as well as wood which has been painted or glazed. The elastomers are especially suited for use in the installation of windows.

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