Process of applying protective coating
US4067737A · kind A · utility
2Cited by
11References
6Claims
0Family size
Inventor
Key dates
| Filing date | Dec 2, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Dec 2, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A clear resin protective coating is applied to a picture by spreading liquid resin over the picture surface from one edge using a spreader sheet under tension which is carried by a frame hinged parallel to one edge of the picture, so that a `wedge` of resin is advanced over the picture surface as the frame is lowered, forming upon curing a clear protective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.