Cationic grafted starch copolymers as high-strength paper additi

Details Cationic grafted starch copolymers as high-strength paper additi Cationic grafted starch copolymers as high-strength paper additi

1987-06-02

1988-05-17

Phillips, Delbert R.

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621682, D21D 302, D21D 340

Patent

active

047448644

ABSTRACT:
Cationic starch graft copolymers are disclosed which improve the dry strength of paper when used as wet-end additives. Such copolymers comprise cationic starch, nonionic vinyl monomers and cationic vinyl monomers which have been polymerized.

REFERENCES:
patent: 4152201 (1979-05-01), Killam
patent: 4489192 (1984-12-01), Shih et al.
patent: 4557801 (1985-12-01), Avis
patent: 4604163 (1986-08-01), Van Eenam
patent: 4643801 (1987-02-01), Johnson

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