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AssigneeShin-Etsu Chemical Co., Ltd.
InventorsToshio Takago, Masatoshi Arai, Takeo Inoue, Masami Terashima
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The invention provides a novel room temperature-curable organopolysiloxane composition useful as an adhesive or a sealing material with remarkably extended workable time owing to the delayed surface filming. The base component in the composition is a conventional diorganopolysiloxane terminated with hydroxy groups at both molecular chain ends admixed with several known ingredients such as a cross linking agent, curing catalyst, filler and the like. The most characteristic ingredient in the composition effective to achieve the above mentioned desired property is a 1,1,1-trimethyl-3-hydrocarbyl-3,3-di(acylamino)disiloxane which belongs to a novel class of organopolysiloxane compounds and method is described for the preparation of these siloxane compounds.
A room temperature-curable organopolysiloxane composition which comprises
A 1,1,1-trimethyl-3-hydrocarbyl-3,3-di(acylamino)disiloxane represented by the general formula ##STR20## in which Me is a methyl group, R.sup.1 is a hydrogen atom or an alkyl or aryl group, R.sup.2 is an alkyl or aryl group and R.sup.3 is an alkyl group having from 1 to 4 carbon atoms, vinyl group or phenyl group.
Dependencies are inferred from the claim text.