Method for reducing the polymer and bentonite requirement in pap

Details Method for reducing the polymer and bentonite requirement in pap Method for reducing the polymer and bentonite requirement in pap

1999-03-30

2000-08-15

Silverman, Stanley S.

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621681, 1621683, 1621811, 162158, D21H 1768, D21H 1756

Patent

active

061030651

ABSTRACT:
The present invention relates to a method for reducing the polymer and bentonite requirement in papermaking wherein medium and high molecular weight polymers are reacted with bentonite. Further, mechanical shearing of the furnish after polymer addition is not required.

REFERENCES:
patent: 2368635 (1945-02-01), Booth
patent: 4305781 (1981-12-01), Langley et al.
patent: 4749444 (1988-06-01), Lorz et al.
patent: 5015334 (1991-05-01), Derrick
patent: 5266164 (1993-11-01), Novak et al.
patent: 5393381 (1995-02-01), Hund et al.
patent: 5595629 (1997-01-01), Begala
patent: 5676796 (1997-10-01), Cutts
patent: 5858174 (1999-01-01), Persson et al.

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