Method of adhering wallcovering using aqueous adhesive compositions
US4361452A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1981 |
| Grant date | Nov 30, 1982 |
| Priority date | — |
| Expiry date | May 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31895
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid polymeric composition comprises a suspension in an organic liquid of particulate water insoluble but water swellable polymer, the particles being less than 10 microns in size. To reduce viscosity in water the swellable polymer may be a copolymer and/or a water soluble polymer may be included. A composition of polymer particles that are swellable and contain both soluble and insoluble polymer can be made by inverse emulsion polymerization. An aqueous adhesive, that may be made by mixing this composition with water, comprises water swollen particulate polymer that may be a copolymer and that may be used with a dissolved polymer in order to reduce the viscosity. Pregummed substrates, such as wallpaper, that can be rendered adhesive by contacting with water are obtained by applying the aqueous or non-aqueous composition to the substrate and drying it on the substrate. Wallcovering can be stuck to a surface using the aqueous adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.