Creep-optimized UHMWPE fiber
US9534066B2 · kind B2 · utility
1Cited by
0References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2012 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Jan 17, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a creep-optimized ultrahigh molecular weight polyethylene (UHMWPE) fiber obtained by spinning an UHMWPE comprising olefinic branches (OB) and having an elongational stress (ES), and a ratio (OB/1000 C/ES) between the number of olefinic branches per thousand carbon atoms (OB/1000 C) and the elongational stress (ES) of at least 0.2, wherein said UHMWPE fiber when subjected to a load of 600 MPa at a temperature of 70° C., has a creep lifetime of at least 90 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.