Borax dispersion milling of quinacridones

Details Borax dispersion milling of quinacridones Borax dispersion milling of quinacridones

1983-07-11

1984-09-04

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106288Q, 26024587, C09B 6704

Patent

active

044695233

ABSTRACT:
A process of reducing the particle size of oversize crude quinacridones to pigmentary grade material by ball or rod milling the crude quinacridone with 3-10 parts per part by weight pigment of borax pentahydrate and 5-40% by weight, based on pigment, of a monohydric alcohol containing 4-8 carbon atoms of a polyethylene glycol having a molecular weight of 150-600.

REFERENCES:
patent: 2402167 (1946-06-01), Lang et al.
patent: 2816114 (1957-12-01), Ehrich et al.
patent: 3598625 (1971-08-01), Buckwalter
patent: 3657248 (1972-04-01), Wagener
patent: 4287000 (1981-09-01), Buckwalter
patent: 4371643 (1983-02-01), Thomas

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