Metal packaging powder coating compositions, coated metal substrates, and methods
US11248127B2 · kind B2 · utility
2Cited by
73References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2401/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Powder coating compositions, particularly metal packaging powder coating compositions, coated metal substrates, and methods; wherein the powder coating compositions include powder polymer particles comprising a polymer having a number average molecular weight of at least 2000 Daltons, wherein the powder polymer particles have a particle size distribution having a D50 of less than 25 microns; and, in certain embodiments, one or more charge control agents in contact with the powder polymer particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.