Grinding organic pigments

Details Grinding organic pigments Grinding organic pigments

1989-09-27

1993-04-06

Gorski, Joseph M.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

B02C 2318

Patent

active

051996510

ABSTRACT:
A process for conditioning organic pigments by grinding them in water in the presence of a grinding assistant, which comprises using as the grinding assistant an unsubstituted or phenyl-substituted aliphatic or cycloaliphatic 1,2-dihydroxy compound having 6 to 30 C atoms.
The process gives pigments which have good dispersing properties in high molecular weight organic material.

REFERENCES:
patent: 2982666 (1961-05-01), Chun et al.
patent: 3046282 (1962-07-01), Buckwalter
patent: 4024148 (1977-05-01), Tyson et al.
patent: 4262851 (1981-04-01), Graser et al.

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