Aqueous composition with improved elongation at break
US10167408B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
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Key dates
| Filing date | Apr 23, 2015 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Dec 24, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous polymer composition which when in the form of a film shows excellent elongation at break comprising (i) 5 to 30 wt. % of polyurethane where the acid value of the polyurethane is between 3 to 40 mg KOH/g; (ii) 70 to 95 wt. % of vinyl polymer comprising 20 to 90 wt. % of vinyl polymer with Tg<20° C.; 10 to 80 wt. % of vinyl polymer with Tg≥20° C.; where at least one of the vinyl polymers contains acid functional groups with acid value in the range of from 15 and 240 mg KOH/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.