Two-step coating process
US3935330A · kind A · utility
57Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1971 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Dec 8, 1991 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D4/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Coating compositions are cured by initially treating them for a brief period with ionizing or non-ionizing radiation whereby they are partially cured and then completing the cure by a thermal treatment. This two-step process decreases the amount of volatiles escaping into the atmosphere and it also permits the use of compounds not useful in the past and allows significant improvement in film properties such as adhesion to metal. The initial radiation cure can be with electron beam, ultraviolet mercury lamp, plasma arc or other radiation means; the thermal cure is carried out by any heat means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.