Polymer, process and composition
US9676889B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is described an aqueous urethane acrylate copolymer dispersion comprising a) from 10 to 95 wt-% of a polyurethane copolymer, and b) from 5 to 90 wt-% of a polyvinyl copolymer, where vinyl copolymer (b) comprises from 30 parts to 100 parts by weight of biorenewable monomer(s)—such as itaconic acid, itaconate diesters and/or diamides for example dimethyl itaconate (DMI) or dibutyl itaconate (DBI) and where optionally the composition has a residual monomer level of less than 5000 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.