Room temperature-curable organopolysiloxane composition

Details Room temperature-curable organopolysiloxane composition Room temperature-curable organopolysiloxane composition

1987-03-18

1988-03-29

Marquis, Melvyn I.

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

Synthetic resins

From silicon reactant having at least one...

524765, 524860, 524861, 524379, 524588, 525478, 528 29, 528 31, 528 32, 528 33, 528 34, 528901, C08G 7706

Patent

active

047344792

ABSTRACT:
The essential components in the inventive room temperature-curable organopolysiloxane composition are: (A-1) a diorganopolysiloxane of which each terminal silicon atom has a silanolic hydroxy group or two alkoxy groups; (A-2) a filler; (A-3) an alkenyloxy silane, e.g. methyl tri)isopropenyloxy)silane; (A-4) a guanidino-containing organosilicon compound, e.g. 3-(tetramethylguanidino)propyl trimethoxy silane; (A-5) an alcohol, e.g. methyl or ethyl alcohol; (B) an organosilicon compound having a silicon-bonded hydrogen atom; and (C) an organic tin compound as a catalyst. By virtue of the unique formulation above, the composition is very stable in storage in a moisture-free condition for a long period of time without losing the high curability when exposed to a moisture-containing atmosphere.

REFERENCES:
patent: 4371682 (1983-01-01), Hashimoto
patent: 4417042 (1983-11-01), Dziark
patent: 4426509 (1984-01-01), Maass et al.
patent: 4515932 (1985-05-01), Chung

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