Polyester-based coating composition for metal substrates
US9187213B2 · kind B2 · utility
6Cited by
31References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Apr 3, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31681
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides novel packaging articles, e.g., food and beverage cans, having a novel coating composition applied to at least a portion of a surface thereon. In preferred embodiments, the coating composition includes at least a film-forming amount of a copolyester resin having a backbone that includes one or more soft segments and a plurality of hard segments. The copolyester resin preferably has a glass transition temperature from about from about 10° C. to about 50° C. The present invention also provides a method for making coated articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.