Process for producing high tenacity and high modulus polyethylene fibers
US5342567A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F8/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing high tenacity and high modulus polyethylene fiber gel spinning. Cycloalkane and cycloalkene are selected as solvents for dissolving ultra-high molecular weight polyethylene, and a volatile solvent such as cyclohexanone or a mixture thereof is selected as an extracting solvent. The present process allows the extracted fibers to be stretched directly after the spinning step without requiring an intermediate winding step. The resulting fibers from the present invention have a tenacity greater than 15 g/d, a modulus greater than 350 g/d, an elongation at break less than 10%, and a crystallinity greater than 60%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.