Nonionic cellulose ether with improved thickening properties

Details Nonionic cellulose ether with improved thickening properties Nonionic cellulose ether with improved thickening properties

C - Chemistry, Metallurgy

08

B

C08B 11/193 (2006.01) B01F 17/48 (2006.01) C09D 7/00 (2006.01) C09D 7/12 (2006.01) C09D 101/28 (2006.01)

Patent

CA 2335688

The present invention relates to associative cellulose ethers with improved thickening effects, especially in paint. The improvement depends on the presence of a hydrophobic modifying group of general formula (I), where R is an aliphatic group of 12-22 carbon atoms and n is a number from 3 to 7. The DS of the hydrophobic group is 0.003-0.012.

La présente invention concerne des éthers de cellulose associatifs présentant des qualités d'épaississement améliorées, notamment dans des compositions de peinture. Ces améliorations sont dues à la présence d'un groupe hydrophobe modificateur de la formule (I), dans laquelle R est un groupe aliphatique comprenant 12 à 22 atomes de carbone et n est un nombre compris entre 3 et 7. Le degré de substitution du groupe hydrophobe est de 0,003 à 0,012.

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