Process for spinning thermoweldable fibers obtained from polyolefin composition
US6677039B2 · kind B2 · utility
1Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1995 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Crystalline olefin polymers in the form of granules or nonextruded particles having regular geometric form, containing one or more of the following stabilizers:a) from 0.01 to 0.5% by weight of one or more organic phosphites or phosphonites or mixtures thereof; orb) from 0.005 to 0.5% by weight of one or more HALS (Hindered Amine Light Stabilizer); orc) mixtures of (a) and (b);and optionally one or more phenolic antioxidants at a concentration not higher than 0.02% by weight.The fibers obtained from said polyolefins have high thermoweldability and good resistance to yellowing and aging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.