Aqueous colloidal dispersions of sub-micrometer alumina particle

Details Aqueous colloidal dispersions of sub-micrometer alumina particle Aqueous colloidal dispersions of sub-micrometer alumina particle

1994-05-02

1996-05-21

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

501127, 423111, 423132, B01J 1300, B01F 300, C22B 2100

Patent

active

055186602

ABSTRACT:
An aqueous alumina dispersion prepared from high quality, submicrometer alumina powder, suitable for manufacturing fine ceramic products, is disclosed. The sub-micrometer alumina particles have a surface area of 2.5 to 50 m.sup.2 per gram of the alumina particles. There are three components in the dispersion: sub-micrometer alumina particles (10 to 68 percent based on weight of the colloidal dispersion), semicarbazide hydrochloride derivative (0.1 to 5 percent based on the weight of the alumina particles), and water (the balance).

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