Multilayer laminated structure, in particular for wrapping electric cables
US6833178B2 · kind B2 · utility
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2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Aug 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a multilayer laminated structure comprising a polyimide layer coated on at least one of its faces in FEP, and at least one layer of PTFE bonded to said FEP-coated polyimide layer, said layers being formed by tapes that are bonded together while hot with pressure being applied, the or each PTFE tape being made of green PTFE obtained by lubricated extrusion and being united with the FEP-coated polyimide tape at a temperature that is lower than the sintering temperature of PTFE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.