Defined and delaminated kaolin product

Details Defined and delaminated kaolin product Defined and delaminated kaolin product

1990-06-14

1992-02-04

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106484, 106468, 501144, 1621818, C04B 1410

Patent

active

050857070

ABSTRACT:
A defined and delaminated kaolin composition exhibiting high opacity is produced by defining and delaminating a base kaolin clay so as to reduce its colloidal content. The defined and delaminated kaolin composition may also be treated with hexamethylenediamine and aluminum sulfate to further enhance opacity. Whether treated or untreated, the defined and delaminated kaolin composition functions superiorly in paper coating formulations, alone or blended with known coating clays, improving the opacity, print gloss, sheet gloss and printability of paper sheet coated therewith.

REFERENCES:
patent: 3586523 (1971-06-01), Fanselow et al.
patent: 4888315 (1989-12-01), Bowman et al.

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