Method for the preparation of methacryloxypropyldimethylchlorosilane
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsTadashi Okawa, Shuji Yamada
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Abstract
The instant invention pertains to a method for the preparation of methacryloxypropyldimethylchlorosilane that is very efficient, yields a very pure methacryloxypropyldimethylchlorosilane, and produces little alpha-methylpropionyloxypropyldimethylchlorosilane impurity. The instant invention comprises the addition reaction between allyl methacrylate and dimethylchlorosilane in the presence of hydrosilylation catalyst, wherein the water content of the allyl methacrylate does not exceed 200 ppm.
Claims18
A method for the preparation of methacryloxypropyldimethylchlorosilane wherein said method comprises an addition reaction between allyl methacrylate and dimethylchlorosilane in the presence of hydrosilylation catalyst,
- wherein the water content of said allyl methacrylate is less than 200 ppm.
A method for the preparation of methacryloxypropyldimethylchlorosilane wherein said method comprises
- (I) an addition reaction between allyl methacrylate and dimethylchlorosilane in the presence of hydrosilylation catalyst,
- wherein the water content of said allyl methacrylate is less than 200 ppm;
- followed by
- (II) recovering the methacryloxypropyldimethylchlorosilane by distillation of the addition reaction product of (I) in the presence of polymerization inhibitor.
Dependencies are inferred from the claim text.