Multilayered polyester resin-coated metal sheet, multilayered polyester resin film, and can lid
US12049060B2 · kind B2 · utility
1Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2021 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Mar 23, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2435/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a multilayered polyester resin-coated metal sheet having a metal substrate, a lower layer formed on at least one side of the metal substrate and made from a polyester resin (A) modified with 2 to 30 mol % of a first copolymerizable component, and an upper layer that is formed on the lower layer and that contains a polyester resin (B) and a soft component (C) incompatible with the polyester resin (B), the soft component (C) being contained at a content of 2 to 50 mass % when the polyester resin (B) and the soft component (C) are assumed to amount to 100 mass % in total.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.