Process of making polymer articles
US6743388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Apr 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1372
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method including forming a semi-crystalline polymer material into a lamella; and stretching the lamella into a polymer including a node of folded lamella and a fibril orientation. A method including extruding a pseudo-gel including an ultrahigh molecular weight polyethylene material into a lamella; stretching the lamella into a polymer including a node of folded lamella and a fibril orientation; and annealing the polymer at a temperature sufficient to define the node and fibril orientation. An apparatus including a body portion formed of a dimension suitable for a medical device application and including a semi-crystalline polymer arrayed in a node of folded lamella and a fibril orientation. An apparatus including a body portion including an ultra-high molecular polyethylene material arrayed in a node of folded lamella and a fibril orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.