Use of polyimide amine salts as cationic surface sizing...

Details Use of polyimide amine salts as cationic surface sizing... Use of polyimide amine salts as cationic surface sizing...

D - Textiles, Paper

21

H

8/93.49

D21H 17/45 (2006.01) C08F 8/32 (2006.01)

Patent

CA 1119758

ABSTRACT OF THE DISCLOSURE Salts of organic or inorganic acids with polyimide amines wherein the polyimide amines are obtained by reaction of copolymers of maleic acid anhydride and 2, 4, 4-trimethyl- 1-pentene with a mixture of a diamine having a tertiary and a primary amino group and ammonia or a primary monoamine and at least 80% of the anhydride groups having been converted into the corresponding imide groups are used as surface sizing agents for paper.

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