Hydrophilic polyurethane-polyureas and their use as...

Details Hydrophilic polyurethane-polyureas and their use as... Hydrophilic polyurethane-polyureas and their use as...

C - Chemistry, Metallurgy

08

G

C08G 18/34 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08G 18/28 (2006.01) C08G 18/66 (2006.01) C08J 3/03 (2006.01) C09D 175/02 (2006.01)

Patent

CA 2148550

Hydrophilic polyurethane-polyureas which are useful as dispersants for synthetic resins obtained by reacting: (A) a polyisocyanate component comprising at least one organic polyisocyanate, (B) at least one isocyanate- reactive fatty acid derivative, (C) if desired, a compound containing more than two functional groups selected from hydroxyl and carboxyl groups, (D) a polyalkylene glycol component having a molecular mass from 500 to 10,000 g/mol, and (E) a compound having at least one active hydrogen atom which reacts faster than water with NCO groups, while maintaining a molar ratio of isocyanate groups to the sum of hydrogen atoms of the isocyanate-reactive groups, such as the hydroxyl and amino groups, based on all of the starting components (A) to (E), of from 0.5:1 to 2:1.

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