Chemically aggregated kaolin clay pigment and process for making

Details Chemically aggregated kaolin clay pigment and process for making Chemically aggregated kaolin clay pigment and process for making

1995-06-26

1996-12-17

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106416, 106483, 106485, 501146, C04B 1410, C09C 312

Patent

active

055849253

ABSTRACT:
An opacifying kaolin pigment with improved porosity, light scattering ability (opacity), gloss, and ink receptivity over that of the starting pigment is manufactured by a process which comprises the steps of treating an aqueous solution of kaolin with a phosphate compound, using the endogenous aluminum leached from kaolin and/or adding a soluble aluminum compound and increasing the pH of the mixture.

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