SILICONE COMPOSITION, SILICONE EMULSION COMPOSITION, AND FIBER TREATMENT AGENT

摘要

Provided is a silicone composition having high curability even under low-temperature treatment conditions, and exceptional storage stability, the silicone composition being capable of imparting excellent flexibility to fibers as a fiber treatment agent, and also having exceptional washing durability; specifically, a silicone composition containing (A) 70-98 parts by mass of organopolysiloxane having a group represented by formula (1) at the end of the molecule or in a side chain;;(in the formula, Rx is a C1-8 divalent hydrocarbon group, a is an integer of 0-4, Ry are each independently a hydrogen atom, C1-10 monovalent hydrocarbon group, or acyl group, and at least one group shown by Ry is hydrogen) and (B) 2-30 parts by mass of blocked polyisocyanate having two or more isocyanate groups per molecule, 50% or more of these isocyanate groups being blocked by a thermally dissociable blocking agent.

主权项

1. A silicone composition comprising:
(A) 70 to 98 parts by weight of an organopolysiloxane having, at an end of the molecule or on a side chain, a group of general formula (1) below  (wherein Rx is a divalent hydrocarbon group of 1 to 8 carbon atoms; the letter “a” is an integer from 0 to 4; and each Ry is independently a hydrogen atom, a monovalent hydrocarbon group of 1 to 10 carbon atoms or an acyl group, with the proviso that at least one Ry is a hydrogen atom); and (B) 2 to 30 parts by weight of a blocked polyisocyanate which has at least two isocyanate groups per molecule, at least 50 mol % of the isocyanate groups being capped with a thermally labile blocking agent.