Curable polyorganosiloxane compositions comprising latent tin ca

Details Curable polyorganosiloxane compositions comprising latent tin ca Curable polyorganosiloxane compositions comprising latent tin ca

1989-04-21

1990-11-13

Marquis, Melvyn I.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428447, 528 18, 524588, 524861, 524464, 524379, 524386, 524792, 524765, B32B 3300

Patent

active

049701150

ABSTRACT:
Storage-stable, curable polyorganosiloxane compositions, whether solvent-free, in solution in an organic solvent or in aqueous emulsion, contain (A) a polydiorganosiloxane having silanol endgroups, (B) a polydiorganohydrosilane, and (C) a catalytically effective amount of a latent tin catalyst of the formula (1): ##STR1## and are cured into elastomeric state by heating to a temperature at least equal to the decomposition temperature of the latent catalyst (C); such polyorganosioxane compositions are well adopted for the thin-layer coating of a wide variety of useful substrates, e.g., paper.

REFERENCES:
patent: 4719243 (1988-01-01), Pocknell
patent: 4734479 (1988-03-01), Masatoshi et al.
patent: 4830925 (1989-05-01), Swihart et al.

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