Device consisting of an elastomer matrix, comprising piezoelectric charges and electrodes
US12052926B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Aug 28, 2040 |
Classification
- Technology area (CPC —)General
Abstract
A piezoelectric device comprises at least one piezoelectric composite layer P inserted between two conductive composite layers E, each layer E forming an electrode, characterized in that: the layer P is a rubber composition containing more than 50 parts by weight per hundred parts by weight rubber, phr, of diene elastomer, a cross-linking system and at least 5 vol. %, in relation to the total volume of the rubber composition, of piezoelectric inorganic charges; and each layer E is a rubber composition containing at least 50 phr of diene elastomer, a cross-linking system, and conductive charges. A method for producing the device and a tire comprising the device are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.