Cationic copolymers which are insoluble in water, new dispersion

Details Cationic copolymers which are insoluble in water, new dispersion Cationic copolymers which are insoluble in water, new dispersion

1993-08-31

1994-08-23

Nagumo, Mark

Paper making and fiber liberation

Processes and products

With coating after drying

1621683, D21H 2116, D21H 1920

Patent

active

053404416

ABSTRACT:
Cationic copolymers which are insoluble in water based on acrylamide, and a cationic monomer of general formula (I) ##STR1## in which R and R.sub.1, identical or different, represent a hydrogen atom or a methyl group, X represents an oxygen atom or an NH radical and n represents 2 or 3, containing in molar proportions 5 to 30% of cation units and cross-linked with 0.01% to 0.4% in molar proportions relative to the previous monomers of bisacrylamidoacetic acid and with about 0.01% to 0.1% in molar proportions relative to the monomers of bisacrylamidoacetic acid, self-reversible dispersions containing them and use in coating in the paper industry.

REFERENCES:
patent: 4581402 (1986-04-01), Dunk et al.
patent: 4677152 (1987-06-01), Allen et al.
patent: 5075399 (1991-12-01), Ahmed et al.
patent: 5167766 (1992-12-01), Honig et al.
patent: 5219619 (1993-06-01), Trouve et al.

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