Papermaking process

Details Papermaking process Papermaking process

1998-10-14

1999-12-28

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621816, 1621818, 162183, D21H 2110

Patent

active

060076798

ABSTRACT:
The invention relates to a paper making process in which improved drainage and retention is obtained by the addition of an effective amount of a cationic dispersion polymer to an aqueous cellulosic paper making slurry prior to shearing the slurry; which cationic dispersion polymer is selected from a group of copolymers consisting of:

REFERENCES:
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patent: 4913775 (1990-04-01), Langley et al.
patent: 4929655 (1990-05-01), Takeda et al.
patent: 5006590 (1991-04-01), Takeda et al.
patent: 5098520 (1992-03-01), Begala
patent: 5185062 (1993-02-01), Begala

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