Organopolysiloxane compositions which are stable under...

Details Organopolysiloxane compositions which are stable under... Organopolysiloxane compositions which are stable under...

C - Chemistry, Metallurgy

08

G

402/14, 402/21,

C08G 77/26 (2006.01) C08K 5/57 (2006.01)

Patent

CA 1191650

Abstract of the Disclosure Compositions which are stable when stored under anhy- drous conditions, but which crosslink to form elastomers when exposed to moisture at room temperature are prepared by mixing (1) a diorganopolysiloxane having terminal condensable groups, with (2) a silicon compound containing at least three groups per molecule selected from amino groups which are bonded to silicon via nitrogen, oxime groups which are bonded to silicon via oxy- gen or mixtures thereof and (3) a product which is obtained from the reaction of (a) a silane containing as hydrolyzable groups at least two monovalent hydrocarbon radicals per molecule which are bonded to silicon via oxygen in which the monovalent hydro- carbon radicals may be interrupted by at least one ether-oxygen, or an oligomer thereof, with (b) a diorganotin diacylate, in which all the valences of the tin atom in the reaction product are saturated by SnC-bonded monovalent radicals or by oxygen atoms of the ? SiOSn ? group.

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