Polyolefin composition containing low viscosity propylene homopolymer, fiber and extensible non-woven fabric prepared therefrom
US6476135B1 · kind B1 · utility
53Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/642
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyolefin composition which contains 45 to 5 weight percent of a low viscosity propylene homopolymer having an as polymerized melt flow rate of 250 to 550 g/10 minutes and 55 to 95 weight percent of an olefin polymer composition, preferably a random copolymer of propylene and ethylene and/or a C4-10 alpha-olefin or mixtures thereof, containing from 90 to 99 weight percent propylene. The composition may be formed into fibers having a diameter of from 15 to 23 microns. The fibers may be used to produce nonwoven fabrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.