Curable silicone compositions containing reactive non-siloxane-containing resins

摘要

The present invention relates to two-part moisture curing compositions useful for adhesive, sealing, potting and other applications. In particular, the present invention relates to two-part room temperature vulcanizing (RTV) compositions which include in one of the parts a moisture curing organic polymer which is substantially free or does not contain siloxane bonds in its backbone.

主权项

1. A two-part moisture-curable composition comprising:
(a) a first part comprising at least one hydroxyl-terminated polydiorganosiloxane and a water source; (b) a second part comprising at least one moisture cure catalyst, and at least one moisture curing silyl-functionalized material having the formula:where R1 is C1-4 alkyl, aryl, acyl, alkoxyalkyl; a is an integer 0-2; A is a polymer backbone comprising acrylate moieties; A is not interrupted by nitrogen atoms, and no nitrogen atoms are present between the terminal silicon atoms and A; and R2 is C1-20 hydrocarbon radical.