Mixture of fluoroalkyl alcohol-unsaturated carboxylic acid...

C - Chemistry – Metallurgy – 07 – C

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C07C 69/653 (2006.01) C07C 67/08 (2006.01) C07C 69/007 (2006.01) C09K 3/18 (2006.01) C07B 61/00 (2006.01)

Patent

CA 2711039

Disclosed is (1) a mixture of fluoroalkyl alcohol-unsaturated carboxylic acid derivatives represented by the general formulae: CF3(CF2)n(CH=CF)a(CF2CF2)b(CH2CH2)c OCOCR=CH2 and CF3(CF2)n-1(CF=CH)a CF2(CF2CF2)b(CH2CH2)c OCOCR=CH2, wherein R is a hydrogen atom or a methyl group, n is an integer of 1 to 5, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3; (2) a fluorine-containing polymer containing the mixture as a polymerization unit; and (3) a water- and oil-repellent comprising the fluorine--containing polymer as an active ingredient. The fluoroalkyl alcohol- unsaturated carboxylic acid derivatives are produced by an esterification reaction of a mixture of fluoroalkyl alcohols represented by the general formulae: CF3(CF2)n(CH=CF)a(CF2CF2)b(CH2CH2)c OH and CF3(CF2)n-1(CF=CH)a CF2(CF2CF2)b (CH2CH2)c OH, with acrylic acid or methacrylic acid.

L'invention concerne (1) un mélange de dérivés d'alcool fluoroalkylique-acide carboxylique insaturé représentés par la formule générale suivante : CF3(CF2)n(CH=CF)a(CF2CF2)b(CH2CH2)cOCOCR=CH2et la formule générale suivante : CF3(CF2)n-1(CF=CH)aCF2(CF2CF2)b(CH2CH2)cOCOCR=CH2 (dans les formules, R représente un atome d'hydrogène ou un groupe méthyle ; n représente un entier de 1-5 ; a représente un entier de 1-4 ; b représente un entier de 0-3 ; et c représente un entier de 1-3) ; (2) un polymère contenant du fluor contenant les dérivés comme unités de polymérisation ; et (3) un agent hydrofuge et oléofuge contenant le polymère contenant du fluor en tant qu'ingrédient actif. Les dérivés d'alcool fluoroalkylique-acide carboxylique insaturé sont produits par estérification d'un mélange d'alcools fluoroalkyliques représentés par la formule générale suivante : CF3(CF2)n(CH=CF)a(CF2CF2)b(CH2CH2)cOH et la formule générale suivante : CF3(CF2)n-1(CF=CH)aCF2(CF2CF2)b(CH2CH2)cOH avec un acide acrylique ou un acide méthacrylique.

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