Acrylic copolymers

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 220/06 (2006.01) C04B 24/16 (2006.01) C04B 24/26 (2006.01) C04B 24/32 (2006.01) C08F 220/04 (2006.01) C08F 220/28 (2006.01) C08F 220/36 (2006.01) C08F 222/22 (2006.01)

Patent

CA 2234210

Copolymers which are obtainable by reacting acrylic monomers with monomers of the following formula: R4 - O - R5 - CO - NH - R6 wherein R4 represents H or a group of the following formulae: Image or CH2 = C(R1) - CO - R5 represents an oxyalkenyl group of the following formulae: - (CHR1 - CH2 - O)m- or -(CHR1 - CH2 - O)m1-(CH2-CH2-O)n- R6 represents a C1-to C8-alkyl group, a C5 - to C7 -cycloalkyl group, or a phenyl group. The copolymers are very useful as additives or admixtures for improving the properties of construction materials and of dispersions.

Copolymères pouvant être obtenus par réaction de monomères acryliques avec des monomères possédant la formule suivante : R4 - O - R5 - CO - NH - R6, dans laquelle R4 représente un H ou un groupe possédant la formule suivante : Image ou CH2 = C(R1) - CO; R5 représente un groupe oxyalkényle possédant la formule suivante : - (CHR1 - CH2 - O)m- ou -(CHR1 - CH2 - O)m1-(CH2-CH2-O)n; - R6 représente un groupe alkyle en C1-C8, un groupe cycloalkyle en C5-C7 ou un groupe phényle. Les copolymères sont très utiles comme additifs ou adjuvants permettant d'améliorer les propriétés des matériaux de construction et des dispersions.

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