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US 2024/0279253 A1Published application
Method for making an asymmetric (meth)acrylate functional disiloxane
OwnerXiaoyuan Zhou, Eric Joffreinventors
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Abstract
A cohydrolysis method is used to prepare an asymmetric (meth)acrylate-functional diorganosiloxane from a (meth)acryl-functional silane, a diorganohydridohalosilane, and water.
Claims21
A method for making an asymmetric (meth)acrylate-functional diorganosiloxane comprises:
- (1) cohydrolysis of starting materials in a single reactor, where the starting materials consist essentially of
- (A) a (meth)acryl-functional silane of formula R1R22SiX, where R1 is a (meth)acryloxyalkyl group, each R2 is an independently selected alkyl group, and X is independently selected from the group consisting of a halogen atom and an alkoxy group;
- (B) a diorganohydridohalosilane of formula R22HSiX, where each R2 is an independently selected alkyl group, and
- (C) water;
- thereby forming a forms a product comprising a siloxane layer and an aqueous layer, where the siloxane layer comprises a cohydrolysis product comprising the asymmetric (meth)acrylate-functional diorganosiloxane and a side product.
2 more elements
-13. (canceled)
Dependencies are inferred from the claim text.