SIZED PAPER MANUFACTURE PROCESS Russian patent published in 2004 - IPC

Abstract RU 2243306 C2

FIELD: paper-and-pulp industry.

SUBSTANCE: process involves separately adding anionic or cationic sizing dispersion and sizing promoter to aqueous slurry containing cellulose fibers and optionally filler, said sizing promoter containing cationic organic polymer with one or several aromatic groups and anionic polymer with aromatic groups, which is stepped polymer, polysaccharide, and natural aromatic polymer.

EFFECT: improved sizing process.

31 cl, 6 tbl, 6 ex

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RU 2 243 306 C2

Authors

Lindgren Ehrik

Frelikh Sten

Persson Mikaehl'

Dates

2004-12-27—Published

2001-08-02—Filed