Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1974-07-05
1976-05-11
Jacobs, Lewis T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 336SB, 260 37SB, 260 465G, 260825, C08L 9100
Patent
active
039562093
ABSTRACT:
There is provided by the present invention a twopart room temperature vulcanizable silicon rubber composition which is exceptionally stable to reversion and specifically to reversion of the cured composition caused by water comprising a silanol-stopped diorganopolysiloxane, filler, an alkyl silicate and a catalyst where the catalyst is a reaction product of an organic tin oxide compound with the hydrocarbon ester of an oxygen-containing acid having at least one oxygen atom in the acid radical attached to a replaceable acid hydrogen atom. The hydrocarbon ester can be either an inorganic acid or a carboxylic acid. The preferred catalyst in the present invention is the reaction product of dibutyl tin oxide and a phthalate ester.
REFERENCES:
patent: 3070566 (1962-12-01), Nitzsche et al.
patent: 3839246 (1974-10-01), Hamilton, Jr. et al.
Hamilton, Jr. Stephen B.
Lampe Warren R.
General Electric Company
Jacobs Lewis T.
Koltos E. Philip
Neuhauser Frank L.
Voss Donald J.
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