Method for the production of a synthetic leather
US6838043B1 · kind B1 · utility
3Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Mar 20, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06N3/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A synthetic leather made of a nonwoven fabric impregnated and/or coated with a polymer, with a surface weight of 100 to 500 g/m2, and a tensile strength greater than 300 N/5 cm in the lengthwise and the crosswise direction, where the nonwoven fabric is made up of melt-spun multi-component endless filaments, aerodynamically stretched and directly laid up to form a nonwoven material, having a titer less than 2 dTex, and wherein the multi-component endless filaments, after preliminary bonding, are split and bonded by at least 90% to produce supermicro endless filaments having a titer less than 0.2 dTex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.