Soft textured high strength alkali blue pigment and process for

Details Soft textured high strength alkali blue pigment and process for Soft textured high strength alkali blue pigment and process for

1986-09-17

1988-12-06

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

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

106500, 106504, C04B 1400

Patent

active

047894040

ABSTRACT:
A process for preparing a soft textured high strength Alkali Blue pigment toner comprising preparing an initial mixture from an alkali metal hydroxide, Alkali Blue pigment, resin, oil or varnish, free fatty acid and water and adding a mineral acid to said mixture to precipitate the pigment product.

REFERENCES:
patent: 3582381 (1971-06-01), Papenfuss
patent: 3635745 (1972-01-01), Rentel et al.
patent: 3712824 (1973-01-01), Kiyokawa et al.
patent: 4032357 (1977-06-01), Rees et al.
patent: 4251276 (1981-02-01), Ferree et al.
patent: 4383865 (1983-05-01), Iyengar
patent: 4456485 (1984-06-01), Iyengar
patent: 4469519 (1984-09-01), Iyengar

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