Epoxy exterior coating for lap-seam beverage cans
US3949895A · kind A · utility
0Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1975 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Feb 24, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D25/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a thermosetting resin comprising a polyglycidyl ether of a bisphenol of relatively low molecular weight, which is upgraded in molecular weight by reaction with additional bisphenol and esterified with certain fatty acid mixtures from a tall oil source. When these resins are reduced with organic solvents to approximately 50 percent solids content they are useful exterior coatings for lap-seam beverage cans in which the seam is sealed with a nylon adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.