MOISTURE CURE NON-ISOCYANATE ACRYLIC COATINGS

摘要

An ambient temperature curing coating composition comprising the crosslinked reaction product of: (a) an amino-functional compound, wherein the amino- functional compound is a bis-silylamine of general formula: (R2)b(R1Y )a Si - Q1 - NH - Q2 - (NH - Q)n - Si (YR1)a(R2)b, n>0, a = 3-b, b = 0,1,2, each Y is independently a heteroatom, selected from 0, N; if Y is N, then the valency of Y is 2; if Y is 0, then the valency of Y is 1; each R1 is independently a monovalent radical (e.g., hydrogen, hydrocarbon including but not limited to alkyl (linear or brached), cycloalkyl, aryl, allyl, or aralkyl. Preferably, R1 is an alkyl of 1-10 carbon atoms. Each R1 may be the same or different; R2 i s a monovalent radical, and can include heteroatoms (e.g., oxygen, nitrogen, sulfur) not directly bonded to the silicon atom, including but not limited t o, alkyl (linear or branched), cycloalkyl, aryl, allyl, or aralkyl. Each R2 may be the same or different. Q1, Q2, Q3 is a divalent bridging group, including but not limited to an alkylene, but preferably is a C1-C12 alkylene, and can be branched or cyclic; each Q can be the same or different; and (B) an acryl ic polymer having pendant alkoxysilane and optionally epoxy groups. The inventi on can be further crosslinked with reactive polysiloxanes.