Process for preparing a polarized film or sheet containing β-form polyhydroxyalkanoate based copolymer
US11896741B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2019 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Nov 14, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein is a device comprising a PHA based copolymer layer comprising at least one of an electrospun ribbon of fibers of a polyhydroxyalkanoate based copolymer or the polarized polymeric composition obtained by the process of claim 1, wherein the layer is configured to exhibit one or more of a piezoelectric effect, a pyroelectric effect and a ferroelectric effect, wherein each of the electrospun ribbon of fibers and the polarized polymeric composition comprises a β-form of the PHA based copolymer present in an amount of from about 10% to about 99%, as measured by x-ray diffraction. The device can be configured for use as a sensor, a actuator, a nanomotor, or a biobattery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.