logo

For the Inventor, By the Inventor

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.:

US 5143644 B1

PDFFull Text
Date of Patent:
Sep. 01, 1992

Filed:

Apr. 06, 1990

Carboxylic acid ester compounds, and their related matters and method of

Applicant:
Inventors:

Hideo Yamaoka, Ichihara, JP;

Toyoji Shimizu, Ichihara, JP;

Fujihisa Matsunaga, Ichihara, JP;

Shinichi Nishiyama, Ichihara, JP;

Toru Yamanaka, Ichihara, JP;

Shoichi Miyakoshi, Ichihara, JP;

Assignee:

Mitsui Petrochemical Industries, Ltd., Tokyo, JP;

Attorney:

Sherman and Shalloway

Primary Examiner:

Robert L Stoll

Assistant Examiner:

Shean C Wu

Int. Cl.
CPC ...
C09K / ; C07C / ; G02F / ;
U.S. Cl.
CPC ...
25229962 ; 25229901 ; 560 56 ; 560100 ; 359103 ;
Abstract

This invention relates to carboxylic acid ester compounds or liquid crystal compounds represented by the following formula [A], liquid crystal compositions and liquid crystal elements using these compounds, the method of producing said liquid crystal elements, and other uses. ##STR1## wherein R represents one radical selected from the group consisting of an alkyl group having 6-18 carbon atoms, an alkoxy group having 6-18 carbon atoms, and a halogenated alkyl group having 6-18 carbon atoms, X represents --CF.sub.3 or --CH.sub.2 --CH.sub.3, m is an integral number of 1-10 when X is --CF.sub.3, and an integral number of 2-10 when X is --CH.sub.2 --CH.sub.3, and C* represents an asymmetric carbon atom.

Find Patent Forward Citations

Yamaoka, Hideo. (1992). Carboxylic acid ester compounds, and their related matters and method of (U.S. Patent No. 5143644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5143644

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…