Process for producing a porous film
US5073316A · kind A · utility
30Cited by
4References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for producing a porous film comprising polyolefin resin, a filler and an ester of dipentaerythritol having a ratio 3 to 70% residual OH groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.