Bio-based coating compositions and methods of preparation thereof
US12371585B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 6, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Apr 13, 2044 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The disclosure relates to a coating composition comprising a decarboxylated rosin acid (DCR) component as a coalescent agent, for use in a dispersion base comprising any of acrylic and/or polyurethane, and optional additives. The coating composition forms a continuous and homogeneous film even under humidity conditions. The DCR has a density of 0.9 to 1.0 g/cm3, a flash point of 135 to 175° C., an acid value of <50 mg KOH/g, measured according to ASTM D465, and a viscosity of 15 to 60 cSt at 40° C., measured according to ASTM D-445.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.