Copolymers and their use as auxiliaries and/or additives in...

C - Chemistry – Metallurgy – 08 – G

Patent

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402/257, 403/31

C08G 18/08 (2006.01) C08F 16/02 (2006.01) C08F 216/14 (2006.01) C08F 220/28 (2006.01) C08F 220/58 (2006.01) C08F 226/00 (2006.01) C08F 226/06 (2006.01) C08F 290/06 (2006.01) C08L 29/02 (2006.01) C08L 39/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2002399

This invention deals with novel copolymers having K values of from 5 to 80 prepared by the radical polymerization of: (A) 20 to 80 weight percent, based on the total weight of (A) and (B), of at least one olefinic unsaturated polyoxyalkylene alcohol adduct or a polyester alcohol adduct; (B) 80 to 20 weight percent, based on the total weight of (A) and (B), of at least one vinyl monomer selected from the group consisting of N-vinylformamide, N-vinyl-2-pyrrolidone, N-vinyl-piperidone, N-vinyl-2-caprolactam, N-vinylimidazole, N-vinyl-2-ethylene-urea and N-vinyl-2-propylene-urea; (C) 0 to 40 parts by weight of glycidyl acrylate and/or glycidyl methacrylate; (D) 0 to 10 parts by weight of at least one .alpha., .beta.-monoolefinic unsaturated acid; and (E) 0 to 30 parts by weight of at least one olefinic unsaturated carboxylic acid amide and or carboxylic acid ester and/or styrene; whereby the parts by weight of (C), (D) and (E) are each based on 100 parts by weight of monomers (A) and (B). The copolymers are used as auxiliaries and/or additives, for example, as dispersing agents and/or emulsification agents or as additives for improving the mechanical properties in formulations for the preparation of polyisocyanate addition polymerization products.

La présente invention porte sur de nouveaux copolymères possédant des valeurs K de 5 à 80, préparés par polymérisation radicalaire : A) de 20 à 80 % en poids, basé sur le poids total de A et B, d'au moins un produit d'addition de type polyoxyalkylène alcool insaturé oléfinique ou d'un produit d'addition de type polyester alcool; B) de 80 à 20 % en poids, basé sur le poids total de A et de B, d'au moins un monomère vinylique choisi parmi le N-vinylformamide, la N-vinyl-2-pyrrolidone, la N-vinylpipéridone, le N-vinyl-2-caprolactame, le N-vinylimidazole, la N-vinyl-2-éthylène-urée et la N-vinyl-2-propylène-urée; C) de 0 à 40 parties en poids d'acrylate de glycidyle et (ou) de méthacrylate de glycidyle; D) de 0 à 10 parties en poids d'au moins un acide insaturé alpha, bêta-monooléfinique; E) de 0 à 30 parties en poids d'au moins un amide d'acide carboxylique oléfinique insaturé et (ou) d'un ester d'acide carboxylique et (ou) de styrène. Les nombres de parties en poids de C, D et E sont basés chacun sur 100 parties en poids de monomères A et B. Les copolymères sont employés comme agents auxiliaires et (ou) comme additifs, par exemple comme agents dispersants et (ou) comme émulsifiants, ou comme additifs pour améliorer les propriétés mécaniques dans les formulations destinées à la préparation de produits de polymérisation par addition avec des polyisocyanates.

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