Nonwoven fabric made with multicomponent polymeric strands including a blend of polyolefin and elastomeric thermoplastic material
US5425987A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Oct 6, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nonwoven fabric made with multicomponent polymeric strands includes a blend of a polyolefin and elastomeric thermoplastic material in one side or the sheath of the multicomponent polymeric strands. The fabric has improved abrasion resistance and comparable strength and softness properties. The thermoplastic elastomeric copolymer is preferably A-B-A' block copolymer wherein A and A' are each a thermoplastic endblock which includes a styrenic moiety and wherein B is an elastomeric poly(ethylene-butylene) mid block. Composite materials including such multicomponent material bonded to both sides of an inner meltblown layer are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.