Aqueous dispersions of polyurethane resins based on rosin
US9701778B2 · kind B2 · utility
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2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Aug 4, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to rosin-based polyurethane resins derived from hydroxylated fatty polyesters modified with rosin, where the polyesters are bio-based, The invention also relates to aqueous dispersions of these resins, and the use of these resins in aqueous coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.