Hydrophilic comb polyurethane

Details Hydrophilic comb polyurethane Hydrophilic comb polyurethane

C - Chemistry, Metallurgy

08

G

C08G 18/28 (2006.01) C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01) C08G 18/50 (2006.01) C08G 18/71 (2006.01) C08G 18/72 (2006.01) C08G 18/75 (2006.01) C08G 18/78 (2006.01) C08G 18/79 (2006.01) C08L 9/08 (2006.01) C09D 7/12 (2006.01) C09D 109/04 (2006.01) D21H 19/36 (2006.01)

Patent

CA 2755322

Comb water soluble hydrophilic polyurethanes containing polyoxyethylene side- chains and having molecular weight higher than 100,000 are useful as deflocculant and water retention agents in paper coating compositions.

L'invention concerne des polyuréthannes hydrophiles en nid d'abeille solubles dans l'eau contenant des chaînes latérales de polyoxyéthylène et présentant un poids moléculaire plus élevé que 100 000 utilisés comme défloculants et agents de rétention d'eau dans des compositions de couchage du papier.

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