Production of UHMWPE sheet materials
US7803450B2 · kind B2 · utility
3Cited by
52References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2006 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Mar 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
UHMWPE panels of large width may be prepared by a continuous ram extrusion process by employing a slit die which preferably narrows from both sides in a direction transverse to the machine direction, and/or which employs a plurality of transversely positioned cooling zones located on the top and the bottom of the die, proximate the exit thereof. The panel exits the die at a temperature lower than the crystalline melt temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.