Glycol dispersion of precipitated calcium carbonate

Details Glycol dispersion of precipitated calcium carbonate Glycol dispersion of precipitated calcium carbonate

1991-01-02

1992-02-04

Lovering, Richard D.

Compositions

Inorganic luminescent compositions

Tungsten containing

524425, B01J 1300

Patent

active

050858009

ABSTRACT:
The present invention provides a glycol dispersion comprising calcium carbonate and glycol prepared by wet-grinding under the specified conditions a glycol slurry composed of glycol and calcium carbonate satisfying the specified dispersibility and particle size. The glycol dispersion of the present invention is good in dispersion stability in glycol and is capable of improving running property of audio tapes, video tapes, etc., thus contributing to improvement in properties such as sound and image.

REFERENCES:
patent: 4693932 (1987-09-01), Kuze et al.
patent: 4727108 (1988-02-01), Kagiyama et al.
patent: 4898620 (1990-02-01), Rayfield et al.
Derwent Abstract, An 86-194139/30.
Derwent Abstract, AN 86-262016/40.

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