Thixotropic aqueous coating composition of solubilized polymer with dispersion of quaternary ammonium clay in aliphatic hydrocarbon
US4097437A · kind A · utility
22Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | May 27, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | May 27, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aqueous solutions of polymers are rendered thixotropic by addition of a dispersion in aliphatic hydrocarbon of quaternary ammonium modified smectite clay, monohydric alcohol, and cationic surfactant. Conventional soluble film forming polymers include polyvinyl alcohol, polyvinyl acetate, amine neutralized polyester, and acrylic and methacrylic acid copolymers. Also silica flatting agent, flow control agent, pigment, wax and aminoplast cross-linker can be added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.