Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1989-10-10
1991-01-01
Rosenberg, Peter D.
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C03C 300
Patent
active
049818198
ABSTRACT:
A process is described for the preparation of a suspension containing sph-shaped oxide particles, in which process there is emulsified in an organic liquid an aqueous phase containing at least one element which can be precipitated as an oxide (hydrate) in dissolved form or in the form of a sol. In this process there is dissolved in this organic liquid before, during or after formation of the emulsion at least one compound which acts as a phase transfer catalyst, and which can replace the anions or cations present in the emulsified water droplets by hydroxide ions or protons and which can thereby cause precipitation of the oxide in the droplets.
REFERENCES:
patent: 4714567 (1987-12-01), Roha
patent: 4801399 (1989-01-01), Clark
patent: 4851150 (1989-07-01), Hench
patent: 4879065 (1989-11-01), Sterzel
Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung
Rosenberg Peter D.
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