Method of producing moisture-permeable artificial leather
US4487642A · kind A · utility
3Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1983 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249986
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
This invention relates to a method of producing a moisture-permeable artificial leather comprising transferring a water-soluble inorganic salt-containing polyurethane layer onto a base fabric and washing the polyurethane layer with water to extract out said water-soluble inorganic salt. A feature of the invention is that the inorganic salt used has a particle diameter range such that at least 90% thereof is not larger than 30 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.