Polypropylene fibres
US6710134B2 · kind B2 · utility
13Cited by
0References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/637
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A polypropylene fibre including at least 80% by weight of a first isotactic polypropylene produced by a metallocene catalyst, and from 5 to 20 by weight of a second isotactic polypropylene produced by a Ziegler-Natta catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.