Particle-filled microporous materials
US4957943A · kind A · utility
108Cited by
15References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1988 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Oct 14, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249979
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A microporous particulate-filled thermoplastic polymeric article is provided. The article can be in the form of a film, a fiber, or a tube. The article has a thermoplastic polymeric structure having a plurality of interconnected passageways to provide a network of communicating pores. The microporous structure contains discrete submicron or low micron-sized particulate filler, the particulate filler being substantially non-agglomerated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.