Rotary process for forming uniform material
US7582240B2 · kind B2 · utility
26Cited by
32References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2005 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | May 8, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/674
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thin, uniform membrane comprising polymeric fibrils or a combination of fibrils and particles, wherein the fibrils have randomly convoluted cross-sections, and a process for making the membrane are disclosed. The membrane may be on the surface of a substrate as part of a composite sheet, or as a stand-alone structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.