Cationic polyurethanes

Details Cationic polyurethanes Cationic polyurethanes

C - Chemistry, Metallurgy

08

G

402/140, 8/93.32

C08G 18/32 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/36 (2006.01) C08G 18/83 (2006.01) C08L 75/12 (2006.01) D21H 17/57 (2006.01)

Patent

CA 1042133

ABSTRACT OF THE DISCLOSURE A cationic polyurethane is produced by a reaction between a monomeric aliphatic dihydroxy compound containing an aliphatic substituent of at least 10 carbon atoms with a polyisocyanate to produce a preadduct containing terminal NCO groups: the preadduct is chain-extended with an aliphatic monomeric diol containing tertiary nitrogen and the chain- extended product is transformed into an ammonium compound the thus obtained cationic polyurethane is an outstanding paper gluing agent.

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