Predispersed slurry of titanium dioxide

Details Predispersed slurry of titanium dioxide Predispersed slurry of titanium dioxide

1980-05-19

1981-09-08

Vertiz, O. R.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

423610, C09C 136

Patent

active

042882540

ABSTRACT:
A process is disclosed for preparing a slurry of titanium dioxide having a solids content of at least 60%. In the past titanium dioxide pigment slurries have been prepared by mixing titanium dioxide powder, water and additives in a batch mixer, however, this is a lengthy process and generally results in some agglomeration of the particles. The present process comprises the steps of mixing titanium dioxide pigment, at least one dispersant additive and water to a first mixture having a solids content of at least about 60%, pumping the first mixture through a disperser mill to produce a second mixture free from agglomerates.

REFERENCES:
patent: 3702773 (1972-11-01), Hall et al.
patent: 3758322 (1973-09-01), Roberts
patent: 3772046 (1973-11-01), Knapp et al.
patent: 3847640 (1974-11-01), Daubenspeck et al.
patent: 4042557 (1977-08-01), Dills
patent: 4177081 (1979-12-01), De Colibus

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