| 摘要 |
A novel organosilicon compound is provided as an organosilicon compound containing a beta-ketoester structure that has minimal volatile components and generates a minimal amount of alcohol when used as a component within all manner of treatment agents. The organopolysiloxane is represented by an average composition formula shown below: YaR1bR2cSi(OR3)d(OH)eO(4-a-b-c-d-e)/2(1) (wherein Y represents an organic group containing a beta-ketoester group that may be at least partially enolized, R1 represents a monovalent hydrocarbon group that may optionally include a functional group such as a mercapto group, an epoxy group or a (meth)acryloyloxy group, R2 represents a monovalent hydrocarbon group that contains no functional groups, R3 represents a monovalent hydrocarbon group, and a, b, c, d and e are numbers that satisfy 0.01@a@1, 0@b<1, 0@c@2, 0@d@2, and 0@e@1 respectively, provided that 2@a+b+c+d+e@3).
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