Urethane vinyl copolymers and impact resistant sheets made therefrom
US10239988B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 3, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Feb 3, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Copolymers comprising a polyurethane segment, a polyvinyl segment and a multifunctional monomer having first and second functional groups covalently bound to the polyurethane segment and polyvinyl segment, respectively, are disclosed. Cast sheets formed therefrom exhibit improved high impact resistance and similar optical properties as compared to polyvinyl cast sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.