Block-resistant gypsum board
US4057662A · kind A · utility
13Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Feb 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24868
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A predecorated printed paper on the gypsum wallboard with a clear washable coating over the printed paper, and having a thin coating of polyethylene emulsion on the back paper which overcomes the tendency of the coated predecorated paper to stick to the back paper of an adjacent board when the boards are piled in stacks for storage and shipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.