Low VOC aqueous compositions of phosphorus acid functional polymers and polyurethanes
US7919556B2 · kind B2 · utility
6Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2009 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Jun 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides compositions that enable excellent hardness in coating applications, the compositions containing one or more copolymer having as copolymerized units one or more acrylic monomer with a phosphorus acid-functional group, a polymeric side chain containing multi-acid functional groups, a salt thereof, or a combination thereof, one or more polyurethane dispersion made from a high molecular weight polyol, and one or more coalescent having a normal boiling point of 190° C. or higher. The compositions may be ambient curable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.