Organopolysiloxane compositions which are stable under anhydrous

Details Organopolysiloxane compositions which are stable under anhydrous Organopolysiloxane compositions which are stable under anhydrous

1983-02-14

1984-07-17

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 33, 528 34, C08G 7706

Patent

active

044607610

ABSTRACT:
Compositions which are stable when stored under anhydrous 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 oxygen 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 hydrocarbon 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 .tbd.SiOSn.tbd. group.

REFERENCES:
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patent: 3607801 (1971-09-01), Fulton
patent: 3678003 (1972-07-01), Kaiser et al.
patent: 3862919 (1975-01-01), Nitzche et al.
patent: 3957704 (1976-05-01), Smith et al.
patent: 4102860 (1978-07-01), Wohlfarth et al.
patent: 4137249 (1979-01-01), Wohlfarth et al.
patent: 4191817 (1980-03-01), Schiller et al.

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