Soft and strong thermoplastic polymer nonwoven fabric
US6224977A · kind A · utility
11Cited by
40References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1995 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | May 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/662
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A nonwoven fiber and fabric are provided wherein the fabric has comparable strength characteristics to conventional fabrics yet is softer. The fibers are are a blend of a high crystallinity polypropylene polymer and a random block copolymer of polypropylene and polyethylene. The fabric of this invention may be laminated to other spunbond layers, meltblown nonwoven fabrics or films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.