Preparation of ammonium and potassium zirconium carbonates
US4061720A · kind A · utility
11Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Oct 20, 1975 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Oct 20, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous solutions of R zirconium carbonate in which R is selected from ammonium and potassium have a carbonate: zirconium molar ratio not greater than 2.05 and can impart thixotropic properties to aqueous dispersions of polymers and copolymers, such as emulsion paint. The solutions may be prepared by reacting zirconium basic carbonate with ammonium or potassium carbonate solution and have a good storage stability, especially at high concentrations. They may be stabilized further by the addition of an acid selected from tartaric and gluconic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.