Polyunsaturated fatty acids as part of reactive structures for latex paints: thickeners, surfactants, and dispersants
US6924333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a latex paint composition comprising polyunsaturated fatty acid containing additives derived from vegetable oils. In preferred embodiments, traditional water soluble additives such as thickeners, surfactants and dispersants are replaced with polyunsaturated fatty acid derivatives, adducts or polyunsaturated fatty acid containing polymers. The polyunsaturated fatty acid containing additives reduce or eliminate the need for traditional water soluble additives that lower the water resistance of the dry paint film. Additionally, the polyunsaturated fatty acid moieties are capable of oxidative crosslinking during the curing process, forming a dry paint film that is more durable and water-resistant than traditional latex paint compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.