Multi-layer articles including a fluoroplastic layer
US6686012B1 · kind B1 · utility
16Cited by
13References
37Claims
0Family size
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Key dates
| Filing date | Aug 23, 2000 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Feb 6, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multi-layer article featuring a fluoroplastic layer bonded to a non-fluorinated polymer layer in which the fluoroplastic has a melting point of at least 200° C. and contains interpolymerized units of at least TFE and VDF, the amount of VDF being at least 0.1% by weight, but less than than 20% by weight. Also useful are fluoroplastics containing at least TFE and VDF in which the amount of VDF units is between 0.1 and 15% by weight. Such polymers may optionally have melting points greater than 200° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.