Water-dispersible polyurethane-vinyl polymer compositions
US7968641B2 · kind B2 · utility
12Cited by
36References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2009 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Feb 24, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurethane dispersion is prepared by reacting a hydroxy-functional sulfonated unsaturated alkyd with an isocyanate in the presence of one or more vinyl monomers to form a blend containing the vinyl monomers and a sulfonated polyurethane polymer containing ethylenic groups. The blend is dispersed in water and the vinyl monomers are reacted by free radical polymerization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.