FIELD: chemistry.
SUBSTANCE: room temperature fast-curable organopolysiloxane composition contains: (A) diorganopolysiloxane with a hydroxy group on both ends and/or a hydrolysable group, (B) alkenoxysilane of formula: R1 x-Si(O-CR2=CR3R4)4-x where R1 and R2 are independently an unsubstituted or substituted univalent hydrocarbon group; R3 and R4 are independently a hydrogen atom or a substituted or unsubstituted univalent hydrocarbon group; under the condition that R2 and R3 can together represent an alicyclic hydrocarbon group containing a C=C double bond in the formula given above, with carbon atoms, with R2 and R3 bonded thereto, x equals 0 or 1; or partial hydrolysate thereof, (C) aminosilane of formula: R5 y-Si(NHR6)4.y, where R5 is a substituted or unsubstituted univalent hydrocarbon group; R6 is a substituted or unsubstituted univalent hydrocarbon group; and y equals 0 or 1; or partial hydrolysate thereof, and (D) a curing agent. The method of curing a room temperature fast-curable organopolysiloxane composition involving coating a substrate with a first portion of the composition containing components (A), (B) and (D), coating another substrate with a second portion of the composition containing components (A), (C) and optionally (D), and binding the substrates by curing the first portion of the composition together with the second portion of the composition.
EFFECT: obtaining a room temperature fast-curable organopolysiloxane composition capable of fast and complete curing.
12 cl, 5 tbl
Authors
Dates
2012-08-10—Published
2008-04-11—Filed