Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1989-07-20
1991-03-19
Dixon, Jr., William R.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106465, C09C 102
Patent
active
050007912
ABSTRACT:
The invention relates to a process for the preparation of an acid-resistant coating and calcium carbonate particles, in which process a slurry of calcium carbonate particles is mixed simultaneously with the solution of a zinc compound and a solution of a silica-containing substance at a temperature of 70.degree.-95.degree. C., the pH being maintained at 8-11.
The invention also relates to calcium carbonate particles having an acid-resistant coating in accordance with the above-mentioned process.
In addition, the invention relates to the use of calcium carbonate particles having a acid-resistant coating in accordance with the above-mentioned process, as an acid-resistant filler in the production of paper at pH 4.0-7.0.
REFERENCES:
patent: 2259481 (1941-10-01), Mowlds
patent: 2269470 (1942-01-01), Mowlds
patent: 3704158 (1972-11-01), Rohan
patent: 3873336 (1975-03-01), Lambert et al.
patent: 4167423 (1979-09-01), Williams
patent: 4167423 (1979-09-01), Williams
Patent Abstracts of Japan, vol. 10, No. 287 (JP-A-61106673).
Jaras Sven
Sikkar Rein
Tokarz Marek
Dixon Jr. William R.
Eka Nobel AB
Gallo Chris
LandOfFree
Process for the preparation of an acid-resistant coating on fill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of an acid-resistant coating on fill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of an acid-resistant coating on fill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2007828