Process for making microporous films of ultrahigh molecular weight polyethylene
US5643511A · kind A · utility
23Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1993 |
| Grant date | Jul 1, 1997 |
| Priority date | — |
| Expiry date | Jun 29, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to microporous films of ultrahigh molecular weight polyethylene and to a process for the preparation thereof by forming a solution of UHMWPE in an evaporable solvent into a film and evaporating the solvent from the film at a temperature below the dissolution temperature, the shrinking tendency occurring in the film being prevented in at least one direction in the plane of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.