Continuous piezoelectric film including polar polymer fibers
US9362481B2 · kind B2 · utility
5Cited by
8References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Dec 13, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/302
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A continuous piezoelectric film can include a plurality of fibers, each fiber including a polypeptide, wherein molecules of the polypeptide have electric dipole moments that are aligned such that the piezoelectric fiber provides a piezoelectric effect. The continuous piezoelectric film has at least one piezoelectric constant d31 or d33 that is at least 1 pC/N. The continuous piezoelectric film can be prepared hot pressing a mat of aligned piezoelectric fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.