Aqueous compositions comprising a blend of emulsion copolymers
US9012561B2 · kind B2 · utility
0Cited by
9References
6Claims
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Assignee
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Key dates
| Filing date | Feb 3, 2010 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides compositions that enable excellent early hardness development in coating applications, the compositions comprising a blend of one or more acrylic emulsion copolymer, pA, having a Tg of 20° C. or higher, and one or more acrylic emulsion copolymer, pB, having a Tg at least 15° C. lower than that of pA, together with one or more additive chosen from a coalescent having a normal boiling point no greater than 300° C., a naturally derived plasticizer, and mixtures thereof. The compositions may be ambient curable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.