Polypropylene fibres
US6730742B1 · kind B1 · utility
9Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Oct 30, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A polypropylene fiber including greater than 50% by weight of a first isotactic polypropylene produced by a Ziegler-Natta catalyst, from 5 to less than 50% by weight of a second isotactic polypropylene produced by a metallocene catalyst and up to 15% by weight of a syndiotactic polypropylene (sPP).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.