Preparation of yellow pigments

Details Preparation of yellow pigments Preparation of yellow pigments

2006-10-03

2006-10-03

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

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

C106S031600, C106S031780, C106S031810, C106S498000, C524S086000, C524S091000, C524S094000

Reexamination Certificate

active

07115164

ABSTRACT:
A process for the manufacture of a transparent Pigment Yellow 155 or transparent Pigment Yellow 180 is disclosed, said process includes grinding particles of said pigment in the presence of a grinding agent until said particles achieve a surface area of at least about 40 m2/g.

REFERENCES:
patent: 6028178 (2000-02-01), Metz et al.
patent: 6117606 (2000-09-01), Macholdt et al.
patent: 6398858 (2002-06-01), Yu et al.
patent: 6476222 (2002-11-01), Smith et al.
patent: 2001-164157 (2001-06-01), None
patent: 2001-164157 (2001-06-01), None
Machine Assisted Translation for JP 2001-164157 (Jun. 2001).
International Search Report for PCT/US2006/007038 dated Jun. 21, 2006.

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