Styrene-free coating compositions for packaging articles such as food and beverage containers
US10968288B2 · kind B2 · utility
5Cited by
70References
20Claims
0Family size
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Jan 10, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/325
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of forming a coating on a food or beverage container, which includes spraying a coating composition onto an interior surface of the food or beverage container, where the coating composition includes an emulsion-polymerized latex copolymer having copolymer chains of one or more ethylenically-unsaturated monomers and one or more styrene offset monomers. Preferably, the coating composition is substantially free of BPA, PVC, and styrene. The method may also include curing the sprayed coating composition, thereby providing the coating on the interior surface of the food or beverage container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.