Preparation of filler compositions for paper

Details Preparation of filler compositions for paper Preparation of filler compositions for paper

1987-04-29

1989-01-24

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106464, 106468, 106486, 106487, 106501, C04B 1400

Patent

active

047999640

ABSTRACT:
A process for forming a preflocculated filler for use in making paper, which process comprises continuously bringing together an aqueous slurry of a paper filler material and a flocculating agent and imparting to the mixture for a period of not more than about 2 minutes and preferably for less than about 30 seconds, a shearing force sufficient to provide a flocculated filler of controlled particle size and most suitable for papermaking.

REFERENCES:
patent: 3873336 (1975-03-01), Lambert et al.
patent: 4174998 (1979-11-01), Shiel
patent: 4210490 (1980-07-01), Taylor
patent: 4272297 (1981-06-01), Brooks et al.
patent: 4282059 (1981-08-01), Davidson
patent: 4295933 (1981-10-01), Smith
patent: 4372814 (1983-02-01), Johnstone et al.

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