Process for the production of polyurethane (meth)acrylates

Details Process for the production of polyurethane (meth)acrylates Process for the production of polyurethane (meth)acrylates

C - Chemistry, Metallurgy

08

G

C08G 18/72 (2006.01) C08G 18/32 (2006.01) C08G 18/67 (2006.01) C08G 18/79 (2006.01) C09D 175/16 (2006.01)

Patent

CA 2576199

A process for the production of polyurethane (meth)acrylates, in which a trimer of a (cyclo)aliphatic diisocyanate, 1,6-hexanediisocyanate, a diol component and hydroxy-C2-C4 alkyl (meth)acrylate in the molar ratio 1 : x : x : 3 are reacted without solvent and without subsequent purification operations, wherein x means any desired value from 1 to 6, wherein the diol component is selected from the group consisting of an individual linear aliphatic alpha,omega C2-C12 diol and a combination of two to four (cyclo)aliphatic diols, wherein in the case of diol combination each of the diols makes up at least 10 mol % of the diols of the diol combination and the diol combination consists to at least 80 mol% of at least one linear aliphatic alpha,omega C2-C12 diol.

Procédé pour la production de (méth)acrylates de polyuréthane, selon lequel on fait réagir un trimère de diisocyanate (cyclo)aliphatique, du 1,6-hexanediisocyanate, un composant diol et un (méth)acrylate d'hydroxy(alkyle en C2-C4) en proportion molaire de 1:x:x:3 sans solvant et sans opérations de purification subséquentes, dans lequel x désigne toute valeur souhaitée allant de 1 à 6, selon lequel le composant diol est choisi dans le groupe constitué d'un alpha,oméga diol aliphatique linéaire en C2-C12 seul ou d'un mélange de deux à quatre diols (cyclo)aliphatiques, et selon lequel dans le cas d'un mélange de diols chacun des diols constitue au moins 10 mol% des diols du mélange de diols et le mélange de diols est constitué à hauteur d'au moins 80 mol% d'au moins un alpha,oméga diol aliphatique linéaire en C2-C12.

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