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US 7,923,572 B2Granted
Method for producing ketimine structure-containing alkoxysilane
AssigneeDow Corning Toray Co., Ltd.
InventorsYoshinori Taniguchi, Makoto Iwai, Keiji Wakita
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Abstract
A method for producing ketimine structure-containing alkoxysilane comprising reacting amino-functional alkoxysilane with a monocarbonyl compound by heating and azeotropically distilling off the produced water together with the monocarbonyl compound to yield ketimine structure-containing alkoxysilane, characterized by introducing additional monocarbonyl compound at the time of the azeotropic distillation of the produced water together with the monocarbonyl compound.
Claims8
A method for producing ketimine structure-containing alkoxysilane comprising;
- reacting an amino-functional alkoxysilane represented by general formula (1)
- (wherein R1 represents C1-6 monovalent hydrocarbyl, R2 represents C1-4 alkyl, R3 represents C1-10 divalent hydrocarbyl or a divalent organic group represented by —R4—NH—R5— (wherein R4 and R5 represent C1-10 divalent hydrocarbyl), and n is 1, 2, or 3) with a monocarbonyl compound represented by general formula (2)
- (wherein R6 and R7 represent the hydrogen atom or C1-10 monovalent hydrocarbyl, but do not simultaneously represent the hydrogen atom) by heating and azeotropically distilling off the produced water along with the monocarbonyl compound to yield ketimine structure-containing alkoxysilane represented by general formula (3)
- (wherein R1, R2, R3, R6, R7, and n are defined as above),
- characterized by introducing additional monocarbonyl compound at the time of the azeotropic distillation of the produced water along with the monocarbonyl compound of formula (2).
2 more elements
Dependencies are inferred from the claim text.