Method of producing aggregated kaolinite pigment using organic s

Details Method of producing aggregated kaolinite pigment using organic s Method of producing aggregated kaolinite pigment using organic s

1992-05-01

1993-08-03

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106416, 106442, 106464, 106465, 106468, 106486, 428454, 501141, 501144, 501145, 501146, 501147, 501148, 501149, C09C 312, C08K 334, C08K 908, C08K 906

Patent

active

052324958

ABSTRACT:
An improved process for producing a aggregated kaolin pigment having desired physical and optical characteristics when used as a coating, filler or pigment in paper. The aggregated pigment is produced by mixing an aqueous slurry of a fine particle kaolin with a previously hydrolyzed organic silicon compound, such as hydrolyzed tetraethoxysilane, and then spray drying the mixture to form a dry, chemically aggregated kaolin pigment.

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patent: 3894882 (1975-07-01), Takewell et al.
patent: 4026762 (1977-05-01), Bauman
patent: 4028173 (1977-06-01), Olson
patent: 4381948 (1983-05-01), McConnell et al.
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patent: 4826536 (1989-05-01), Raythatha et al.
patent: 4935062 (1990-06-01), Brown et al.
Preserving Our Heritage in Stone G. S. Wheeler et al., "Analytical Chemistry", vol. 64, No. 5, Mar. 1, 1992 pp. 347-356.

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