Carbamated polyols, and compositions and methods using the same
US6939592B2 · kind B2 · utility
1Cited by
11References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | May 22, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to coatings that provide improved retort and tropical decay resistance for use on metal food containers. The coatings generally comprise a carbamated polyol formed by the reaction between a polyol, an alkylene oxide and an alkyl carbamate. A crosslinker reactive with the carbamate functionality is used to react with the carbamate moiety. Methods for improving retort resistance and resistance to tropical decay are also disclosed, as are substrates coated with the present compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.