Acid resistant calcium carbonate composition containing an alumi

Details Acid resistant calcium carbonate composition containing an alumi Acid resistant calcium carbonate composition containing an alumi

1995-08-24

1997-02-04

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

1621812, 1621813, 162183, C09C 102

Patent

active

055993885

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 are provided. This acid resistant calcium carbonate comprises a mixture of at least about 0.5 to about 10 percent of an aluminum salt, based on the dry weight of calcium carbonate, and calcium carbonate. Preferred aluminum salts are aluminum sulfate, aluminum chloride, and polyaluminum chloride.

REFERENCES:
patent: 4115187 (1978-09-01), Davidson
patent: 5000791 (1991-03-01), Tokarz et al.
patent: 5043017 (1991-08-01), Passaretti et al.
patent: 5221435 (1993-06-01), Smith, Jr.
Rodriguez, J. M. (1991) Papermkers Conference 91:5-8. (no month).

Affiliated with

Also associated with

Rating

Acid resistant calcium carbonate composition containing an alumi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acid resistant calcium carbonate composition containing an alumi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acid resistant calcium carbonate composition containing an alumi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-674790