Process of forming prepasted wallcoverings
US4713264A · kind A · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1985 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Oct 4, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J7/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process of forming prepasted wallcovering comprising a porous surface that carries a dry coating of polymer particles that become adhesive when wetted by water is made by applying to the surface a dispersion of the particles in a non-aqueous liquid that is stabilized by a polymeric stabilizer and then evaporating the non-aqueous liquid. A dried residue of the dispersion must not form a coherent film and should have a softening point substantially independent of the softening point of the polymeric stabilizer. The polymeric stabilizer is preferably an oil. The non-aqueous liquid is preferably relatively non-volatile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.