Production of filled paper and compositions for use in this

Details Production of filled paper and compositions for use in this Production of filled paper and compositions for use in this

1996-02-13

1998-05-26

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621643, 1621645, 162165, 1621682, 1621683, 162175, 1621811, 1621812, 162183, D21H 2314

Patent

active

057559309

ABSTRACT:
Filled paper is made by adding a cationising amount of cationic polymer to precipitated calcium carbonate or other filler either as a slurry or in a thick stock component, producing a thin stock containing the cationised filler and then treating the thin stock with a formaldehyde resin and polyethylene oxide as a retention system prior to drainage and drying.

REFERENCES:
patent: 4070236 (1978-01-01), Carrard et al.
patent: 4680212 (1987-07-01), Blyth et al.
patent: 4874466 (1989-10-01), Savino
patent: 4913775 (1990-04-01), Langley et al.
patent: 5026457 (1991-06-01), Eichinger et al.
patent: 5126010 (1992-06-01), Kobayashi et al.
patent: 5147507 (1992-09-01), Gill
patent: 5216014 (1993-06-01), Chung
patent: 5244542 (1993-09-01), Bown et al.
patent: 5516405 (1996-05-01), De Witt
Tappi, 1990 Neutral/Alkaline Paper Making, pp. 92-97.

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