Process for preparation of organic pigments

Details Process for preparation of organic pigments Process for preparation of organic pigments

1986-05-07

1988-03-29

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106309, 524 87, 524104, 524106, 524173, 524555, C09B 6710

Patent

active

047341378

ABSTRACT:
Organic pigments are prepared by dissolving at least one organic pigment in a non-protonic polar solvent in the presence of a caustic alkali and water, and adding to the solution an acid having an acrylic resin dissolved therein to effect neutralization and reprecipitation.

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patent: 4256502 (1981-03-01), Kranz et al.
patent: 4455173 (1984-06-01), Jaffe
patent: 4474473 (1984-10-01), Higuchi et al.
Derwent Abstract Accession No. 80-59618c/34, Japanese Patent No. 55090959, Jul. 10, 1980.
Derwent Abstract Accession No. 86-115567/18, Japanese Patent No. 61055175, Mar. 19, 1986.
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Derwent Abstract Accession No. 86-167236/26, Japanese Patent No. 61101577, May 5, 1986.
Derwent Abstract Accession No. 85-083292/14, Japanese Patent No. 60032850, Feb. 20, 1985.
Derwent Abstract Accession No. 85-084119/14, Japanese Patent No. 60035055, Feb. 22, 1985.
Derwent Abstract Accession No. 85-034394/06, Japanese Patent No. 59227940, Dec. 20, 1984.
Derwent Abstract Accession No. 85-279285/45, Japanese Patent No. 60188472, Sep. 25, 1985.

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