Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1995-08-24
1997-01-14
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106465, 106471, 1621811, 162183, C09C 102
Patent
active
055934889
ABSTRACT:
An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acid paper, and a process for producing this acid resistant calcium carbonate is provided. This acid resistant calcium carbonate comprises a mixture of at least about 0.1 percent, based on the dry weight of the calcium carbonate, of a weak base together with at least about 0.1 percent, based on the dry weight of the calcium carbonate, of a weak acid.
REFERENCES:
patent: 3704158 (1972-11-01), Rohan et al.
patent: 3797610 (1974-03-01), Windle
patent: 3873336 (1975-03-01), Lambert et al.
patent: 4115187 (1978-09-01), Davidson
patent: 4159312 (1979-06-01), Shibazaki et al.
patent: 4175066 (1979-11-01), Shibiazaki et al.
patent: 4219590 (1980-08-01), Shibazaki et al.
patent: 4242318 (1980-12-01), Brahm et al.
patent: 4714603 (1987-12-01), Vanderbeiden
patent: 4793985 (1988-12-01), Price et al.
patent: 5043017 (1991-08-01), Passaretti
patent: 5156719 (1992-10-01), Passaretti
patent: 5266163 (1993-11-01), Dessauer
Bell Mark L.
ECC International Inc.
Marcheschi Michael
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