Aqueous dispersion of alkyde resin which is treated with an oxidizing agent and which has improved drying properties
US7718731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2004 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | May 14, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an aqueous dispersion of alkyd resin based on fatty acids possessing conjugated unsaturation which is treated with an oxidizing agent and which has a specific performance, in particular on drying, to a specific production process and to its use as binder in aqueous compositions for decorative or industrial coatings with a reduced level of drying agent or without drying agent.The aqueous dispersion comprises at least one alkyd resin, obtained from at least one unsaturated fatty acid having a level by weight of at least 5% of the said resin, which resin is treated, before and/or during and/or after the forming of the aqueous dispersion, with at least one oxidizing agent selected from: hydroperoxides, including H2O2, peroxides or singlet oxygen, and with the oxidizing treatment temperature being:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.