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US 11,827,738 B2Granted
Thiol-ene-curing compositions
AssigneeMomentive Performance Materials Inc.
InventorDmitry Chernyshov
Life of this patent
Estimating the term…
Abstract
The present invention relates to curable compositions, in particular, thiol-ene-curing compositions, a method of coating using said curable compositions, cured compositions obtained by curing said curable compositions, cured articles, comprising said cured compositions, a certain compound comprising olefinically unsaturated functional groups and a silyl functional group for use in said curable compositions and a method of manufacturing the curable compositions.
Claims17
A curable composition, comprising:
- (A) one or more compounds having two or more olefinically unsaturated functional groups and at least one silyl group which is prepared by
- (i) reacting a polyisocyanate (D) having three or more isocyanate groups, with one or more silyl functional compounds (C) having at least one isocyanate-reactive functional group, in a molar ratio that provides for remaining isocyanate groups, and subsequently reacting the reaction product of the polyisocyanate (D) and the silyl functional compound(s) (C) having at least one isocyanate-reactive functional group with one or more compounds (E) having at least one olefinically unsaturated functional group and at least one isocyanate-reactive functional group, or
- (ii) reacting first the polyisocyanates (D) with one or more compounds (E) having at least one olefinically unsaturated functional group and at least one isocyanate-reactive functional group, and then reacting the reaction product of compound (D) and (E) with the silyl functional compound(s) (C), and
- (B) at least one polythiol.
1 more element
A curable composition, comprising:
- (A′) one or more compounds (A-1) having two or more olefinically unsaturated functional groups and at least one silyl functional group, which compound (A-1) is formed by (1) the reaction of a silyl functional compound (C) having at least one isocyanate-reactive functional group, with a polyisocyanate (D) having three or more isocyanate groups, in a molar ratio that provides for remaining isocyanate groups, followed by the reaction of the reaction product of (C) and (D) with a compound (E) having at least one olefinically unsaturated functional group and at least one isocyanate-reactive functional group or (2) reacting the polyisocyanate (D) with the compound (E) followed by the reaction of the reaction product of (D) and (E) with the silyl functional compound (C), and
- (B) at least one polythiol comprising at least one silyl group.
Dependencies are inferred from the claim text.