Aqueous polymeric dispersions made thixotropic by certain ammonium or potassium zirconium carbonates
US4097430A · kind A · utility
7Cited by
6References
13Claims
0Family size
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Inventor
Key dates
| Filing date | Aug 12, 1976 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Aug 12, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous solutions of R zirconium carbonate in which R is selected from ammonium and potassium have a carbonate: zirconia molar ratio not greater than about 2 are used to impart thixotropic properties to aqueous dispersions of polymers and copolymers containing a water-soluble organic colloid containing a hydroxy group, 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.