Mixed fiber and stretch nonwoven fabric comprising said mixed fiber and method for manufacture thereof
US8021995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2004 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Jun 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/697
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fiber mixture according to the invention comprises fibers A comprising a polymer A containing a thermoplastic polyurethane elastomer and fibers B comprising a thermoplastic polymer B other than the thermoplastic polyurethane elastomer, said thermoplastic polyurethane elastomer having a starting temperature for solidifying of 65° C. or above as measured by a differential scanning calorimeter (DSC) and containing 3.00×106 or less polar-solvent-insoluble particles per g counted on a particle size distribution analyzer, which is based on an electrical sensing zone method, equipped with an aperture tube having an orifice of 100 μm in diameter. An elastic nonwoven fabric comprises the fiber mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.