Bayer Corporation

Miles Inc.

Bayer Aktiengesellschaft

Abdul Sattar

Herman Gerson

Charles E Shannon

Meinhard Rolf

Michael J Greene

Brian L Thompson

Charles W Sandefur

Thomas R Flatt

Robert C Mott

Michael D Hayden

This invention relates to a process for conditioning organic pigments by

Process for conditioning organic pigments

This invention relates to a process for preparing pigment compositions by conditioning an organic pigment, at about 50 to about 200.degree. C., with

Method for conditioning organic pigments

This invention relates to water-dispersible phthalocyanine pigment formulations that are mixtures of

Preparation of phthalocyanine-containing waterborne coating systems

This invention relates to a process for preparing alpha-phase metal phthalocyanine pigments from crude metal phthalocyanine pigments comprising (a) acid pasting or acid swelling a crude metal phthalocyanine pigment; (b) dry milling the acid-pasted or acid-swelled metal phthalocyanine pigment in the presence of 5 to 50 parts by weight of a stabilizer per 100 parts by weight of the crude metal phthalocyanine pigment until the average particle size is reduced to less than about 0.5 .mu.m; (c) finishing the milled metal phthalocyanine pigment by thoroughly mixing said milled metal phthalocyanine pigment with a finishing solvent mixture comprising 3 to 6 parts by weight, relative to the crude metal phthalocyanine pigment, of water and 0.4 to 1.0 parts by weight, relative to the crude metal phthalocyanine pigment, of an organic solvent, optionally in the presence of 0 to 45 parts by weight of a stabilizer per 100 parts by weight of the crude metal phthalocyanine pigment, with the proviso that the total amount of stabilizer used in steps (b) and (c) ranges from 5 to 50 parts by weight per 100 parts by weight of the crude metal phthalocyanine pigment; and (d) isolating the alpha-phase metal phthalocyanine pigment.

Process for alpha-phase metal phthalocyanine pigments

This invention relates to an improved process for preparing metal phthalocyanine pigments comprising

Preparation of phthalocyanine pigments

The present invention relates to a process for preparing a beta-phase metal phthalocyanine pigments in which

Conditioning process for phthalocyanine pigments

This invention relates to solid solutions containing (a) about 90 to about 10% by weight of a chlorinated copper phthalocyanine containing about 14 to about 16 atoms of chlorine per molecule and (b) about 10 to about 90% by weight of a copper phthalocyanine containing about 3 to about 4 atoms of chlorine wherein said compositions are characterized by X-ray diffraction patterns that differ from the sum of the X-ray diffraction patterns of the individual components.

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Mt. Pleasant, SC, United States of America

Abdul Sattar