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.

Date of Patent:
Oct. 17, 1989

Filed:

Jul. 20, 1987
Applicant:
Inventors:

Naoyuki Yoshida, Kamakura, JP;

Kisei Kitano, Yokohama, JP;

Tetsuya Ogawa, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ; C09K / ; C07D / ;
U.S. Cl.
CPC ...
25229961 ; 3503 / ; 3503 / ; 544298 ; 544335 ;
Abstract

A novel phenylprimidinecarboxylate derivative which, when used as a component of liquid crystal compositions, can raise the clearing point of the mesomorphic range of the liquid crystal compositions and/or increase the dielectric anisotrophy value of the compositions, and a liquid crystal compositions containing the derivative are provided, which derivative is expressed by the formula ##STR1## wherein X.sup.1 represents an alkyl or alkoxy each of 1-10 C; X.sup.2 represents a 4-substituted phenyl having an alkyl, of 1-10 C, F, Cl, Br or --CN at 4-position or a 3,4-disubstituted phenyl having f, Cl, Br or CN at 4-position and F, Cl or Br at 3-position; and either one of L or M represents .dbd.N-- and the other represents --C.dbd..


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