Flexible wallcoverings
US4259386A · kind A · utility
8Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1980 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Apr 29, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/253
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A flexible wallcovering is made by applying a foamable composition (13) to a woodchip paper (12, 14) having woodchips defining a relief surface on the paper by a screen printing process and then foaming the composition. Preferably, the wallcovering is of two ply construction with a woodchip content between the plies and the paper is formulated so that the upper ply is dry removable from the lower ply. The woodchips are at least 2 mm in average length; and the woodchips form 20 to 35% by weight of the paper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.