Polyurethane emulsion, sheet-like porous material making use of the emulsion and production process of the material
US4853418A · kind A · utility
11Cited by
5References
6Claims
0Family size
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Key dates
| Filing date | Aug 8, 1988 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Aug 8, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2375/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyurethane emulsion is composed of an organic solvent solution of a polyurethane resin containing silicone segments and/or fluorocarbon segments as backbones and/or side chains and water emulsified in the organic solvent solution. A sheet-like porous material having a porous layer of a polyurethane resin provided on a base material is produced by using the above polyurethane emulsion to form the porous layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.