Aqueous dispersion of particles

Details Aqueous dispersion of particles Aqueous dispersion of particles

1997-01-24

1998-12-15

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

106447, 209 5, 252303, 252346, 526332, 526333, 526932, B01J 1300, B03B 104, B03D 306

Patent

active

058492194

ABSTRACT:
The invention relates to a stable aqueous dispersion of particles which can be flocculated by increasing the temperature to a value above the transition temperature. The invention is characterized in that the dispersion comprises a polymer selected from the group consisting of polyvinyl methyl ether and a block copolymer of polyvinyl methyl ether and a polyvinyl ether, the ether group bonded to the main chain via the oxygen atom being adsorbed onto the surface of the particles. The invention also relates to a block polymer of the above-mentioned type and to a method of manufacturing such a block copolymer. The invention enables very fine powders of ceramic particles having a very high homogeneity to be obtained.

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patent: 4177081 (1979-12-01), De Colibus
patent: 4243430 (1981-01-01), Sperry et al.
patent: 4277384 (1981-07-01), Arkens
patent: 5051199 (1991-09-01), Barwise
Svedberg: Colloid Chemistry, Second Edition, Book Dep't., The Chemical

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