Curable organopolysiloxane compositions with improved adhesion
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United States of America Patent
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Mar 22, 1988
Grant Date -
N/A
app pub date -
Dec 8, 1986
filing date -
Dec 21, 1985
priority date (Note) -
Expired
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Abstract
Organopolysiloxane compositions comprising a polyorganosiloxane having olefinic unsaturation, an organohydrogen polysiloxane and a catalyst, exhibit improved adhesion to a number of substrates when it also comprises an organosilane of the general formula R'(RO).sub.2 SiR', wherein R denotes a monovalent hydrocarbon group, R' denotes an aliphatically unsaturated hydrocarbon or hydrocarbonoxy group and R' denotes an epoxy functional group. The organopolysiloxane compositions also exhibit reduced thixotropy over prior art compositions especially when a reinforcing silica filler is also present.
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