C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/02 (2006.01) C09C 3/10 (2006.01) D21H 17/64 (2006.01) D21H 17/67 (2006.01)
Patent
CA 2230158
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.
L'invention porte sur une forme de carbonate de calcium résistant à l'acide, pour son utilisation en tant que matériau d'apport dans la fabrication d'un papier faiblement acide ou neutre. L'invention concerne également un procédé pour produire ce carbonate de calcium résistant à l'acide. Ce carbonate de calcium résistant à l'acide comprend un mélange d'au moins environ 0,1 pour cent d'une base faible, pourcentage calculé sur le poids à sec du carbonate de calcium, et d'au moins environ 0,1 pour cent d'un acide faible, pourcentage calculé sur le poids à sec du carbonate de calcium.
Ecc International Inc.
Goudreau Gage Dubuc
LandOfFree
Acid resistant calcium carbonate composition and uses therefor 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 and uses therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acid resistant calcium carbonate composition and uses therefor will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1497077