Grafted, thermoplastic, waterborne polymer and coating composition
US5252669A · kind A · utility
30Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1991 |
| Grant date | Oct 12, 1993 |
| Priority date | — |
| Expiry date | Dec 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/1422
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water reducible resin for use in a coating composition is produced by grafting in organic solvent a thermoplastic polymer onto a thermosetting polymer that has been copolymerized with acid group-containing monomers to render the resultant polymer water soluble. Thermoplastic polymer is also grafted onto a phosphatized polyepoxide for the sake of adhesion of a coating to a substrate. A film formed from a waterborne coating composition containing the grafted polymers as a binder has both the toughness properties characteristic of a thermoplastic and the flexibility properties of a thermosetting resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.