Polymer structured clay pigment and method of preparing the same

Details Polymer structured clay pigment and method of preparing the same Polymer structured clay pigment and method of preparing the same

1998-09-01

2000-12-05

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106486, 106483, 106482, 106481, C09C 142, C09C 140, C09C 100

Patent

active

061561177

ABSTRACT:
A method of preparing a polymer structured pigment slurry which comprises providing an anionic, aqueous slurry including a plurality of solid mineral particles, adding a low molecular weight, cationic polymer in an amount of less than about 0.20% by weight to the slurry and then adding a small amount of an inorganic dispersant to the polymer treated pigment slurry. The Malvern median particle size of the mineral particles treated with the polycationic polymer is less than about 20% larger than the Malvern median particle size of the untreated mineral particles.

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