Drawn gel-spun polyethylene yarns and process for drawing
US6969553B1 · kind B1 · utility
36Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Sep 7, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2967
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.