Switch element comprising a liquid-crystalline medium
US9371483B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2011 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2219/13
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterized in that it comprises 5-60% of a compound of the formula (I), in particular for use in the switch elements according to the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.