Process for preparing alkoxypolyoxyalkylene (meth)acrylates

Details Process for preparing alkoxypolyoxyalkylene (meth)acrylates Process for preparing alkoxypolyoxyalkylene (meth)acrylates

C - Chemistry, Metallurgy

07

C

C07C 67/08 (2006.01) C07C 69/54 (2006.01) C08F 290/06 (2006.01) C08G 65/26 (2006.01) C09K 15/08 (2006.01) C09K 15/20 (2006.01) C09K 15/30 (2006.01)

Patent

CA 2642603

A process for preparing an alkoxypolyoxyalkylene (meth)acrylate, in which a) a metal alkoxide MetOR10 is initially charged, b) an alkylene oxide of the formula (IV) is added and reacted with the metal alkoxide, and c) (meth)acrylic anhydride is added directly and reacted with the reaction product from step b). Appropriately, a stabilizer mixture is added in step c) which comprises, for example, the following components: at least one compound of the formula (I); at least one compound of the formula (IIa or IIb) or of the formula (IV); at least one compound of the formula (V).

L'invention concerne un procédé de fabrication d'un alcoxypolyoxyalkylène (méth)acrylate, selon lequel a) un alcoolate métallique MetOR10 est utilisé, b) un oxyde d'alkylène de formule (IV) est ajouté et mis en réaction avec l'alcoolate métallique et c) de l'anhydride d'acide (méth)acrylique est ajouté et mis en réaction avec le produit de réaction de l'étape b). Selon l'invention, un mélange stabilisant est ajouté à l'étape c), comprenant par exemple les composants suivants : au moins un composé de formule (I) ; au moins un composé de formule (IIa ou IIb) ou de formule (IV) ; au moins un composé de formule (V).

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