Stretched polyethylene filaments of high strength and high modulus, and their production
US4617233A · kind A · utility
23Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 1984 |
| Grant date | Oct 14, 1986 |
| Priority date | — |
| Expiry date | May 21, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2913
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Stretched filaments of high strength and high modulus being made of polyethylene of a weight average molecular weight of not less than 3.times.10.sup.6 and having a strength of not less than 50 g/d and an initial modulus of not less than 1,500 g/d, the long period structure being substantially not observed, which are prepared by spinning a dilute solution of said polyethylene and stretching the resultant gel-like filaments in multi-stages until the long period structure becomes substantially not observed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.