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:
Jun. 27, 1989
Filed:
Aug. 19, 1987
Applicant:
Inventors:
Takashi Takayanagi, Shizuoka, JP;
Hideo Kawaguchi, Shizuoka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; C09K / ; C09K / ;
U.S. Cl.
CPC ...
350351 ; 25229901 ; 2522995 ; 25229966 ; 3503 / ; 3503 / ; 365108 ; 428-1 ;
Abstract
Disclosed is a liquid crystal optical element for use in information recording media and displays, which is composed of a polymeric liquid crystal and from 0.01% to 10% by weight, on the basis of the polymeric liquid crystal, of a biphenyl or biphenyl derivative of formula (I) ##STR1## wherein X and Y each represents a hydrogen atom, an alkyl group, an oxyalkyl group, a halogen atom, a nitrile group, or a nitro group. By the addition of the biphenyl or biphenyl derivative, the orientation of the polymeric liquid crystal is improved.