Microporous shaped article and process for preparation thereof
US5238735A · kind A · utility
65Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1990 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Feb 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a microporous shaped polyolefin article comprising a polyolefin and synthetic resin particles dispersed therein and having a softening temperature or a decomposition temperature higher than the shaping temperature of the polyolefin resin, said article having a network structure composed of open-cellular pores with a maximum pore diameter of not more than 5 micromoters, having a porosity of 20 to 90% and being molecularly oriented by stretching. A process for its production is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.