Composite structure and process for producing the same
US8506750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2009 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Mar 2, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A composite structure comprising two polytetrafluoroethylene porous layers and a framework structural member having a plurality of gaps or openings, the framework structural member being disposed between the two polytetrafluoroethylene porous layers, wherein the composite structure is structured such that the polytetrafluoroethylene porous layers are united together by being adhered with each other through the gaps or openings of the framework structural member and such that the respective polytetrafluoroethylene porous layers (A1) and (A2) are united with the framework structural member closely along the surfaces of the respective constituent elements of the framework structural member in such a manner as to wrap the respective elements. The method of manufacturing the composite structure is characterized in that it includes a step of applying pressure through a mass of fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.