Artificial leather sheets and method for producing them
US7704900B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2004 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Apr 6, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Provided is an artificial leather sheet that comprises microfine fibers of an inelastic polymer having a mean fiber diameter of at most 5 μm and an elastic polymer, in which the major portion of the elastic polymer forms a fibrous structure of the entangled nonwoven fabric with the microfine fibers of inelastic polymer throughout the entire layer of the artificial leather sheet in the thickness direction thereof, and a part of the elastic polymer forms a porous layer integrated with the entangled nonwoven fabric structure on at least one face of the artificial leather sheet. The artificial leather sheet does not substantially undergo structure deformation even when repeatedly elongated and deformed. It has good elastic stretchability, and has a soft and dense feel, and its appearance is good not detracting from the drapability of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.