Solid coating compositions for powder and extrusion applications
US5994462A · kind A · utility
35Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D167/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A solid coating composition for use in powder coating and extrusion coating applications is disclosed. The coating composition contains about 70 to about 95% of a base resin, such as a polyester, and about 1 to about 50% of a low-to-medium molecular weight end-capped epoxy resin, and is essentially free of a bisphenol-A diglycidyl ether monomer. The solid coating composition is applied to a metal substrate in a powder coating or an extrusion process to provide a metal article having a composition film having a thickness of about 1 to about 200 microns. The metal articles can be used to package food and beverages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.