The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Aug. 26, 2005
Kento Okoshi, Aichi, JP;
Eiji Yashima, Aichi, JP;
Kento Okoshi, Aichi, JP;
Eiji Yashima, Aichi, JP;
Japan Science and Technology Agency, Saitama, JP;
Abstract
Novel optically active polyacetylene derivatives exhibiting liquid crystallinity; liquid crystal compositions containing the derivatives; and moldings thereof. Specifically, polyacetylene derivatives which have helical structure of rigid-rod shape and which exhibit a liquid crystal phase either in a solvent containing an organic solvent as the main component or in a molten state as well as electric field orientation; liquid crystal compositions containing the derivatives; and moldings thereof. More specifically, polyacetylene derivatives having helical structure of rigid-rod shape as represented by the general formula [1]; liquid crystal compositions containing the derivatives; and moldings thereof: wherein Rand Rare each independently aminocarbonyl of an amino acid having an ester linkage with Calkyl or carbonylamino of an amino acid having an amide linkage with Calkyl, the amino acid being achiral one, or chiral one of (S)- or (R)-configuration, or a racemic mixture composed of both antipodes; and X is a number satisfying the relationship: 0<X≦1.