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:
Sep. 13, 1977
Filed:
Jul. 06, 1976
Yoshi Arai, Oyama, JA;
Kazuo Kimura, Tokyo, JA;
Hisato Sato, Tokyo, JA;
Takasi Yamaki, Tokyo, JA;
Katsuhiko Morita, Urawa, JA;
Masanao Ohzeki, Urawa, JA;
Haruyoshi Takatsu, Kodaira, JA;
Yutaka Fujita, Yokohama, JA;
Masayuki Tazume, Urawa, JA;
Dainippon Ink & Chemicals, Inc., Tokyo, JA;
Kawamura Institute of Chemical Research, Saitama, JA;
Abstract
A nematic liquid crystal composition comprising (I) 4-n-valeryloxy-4'-cyanobiphenyl, (II) 4-n-caproyloxy-4'-cyanobiphenyl and (III) 4'-cyanophenyl-4-n-heptylbenzoate, and either (IV) 4'-cyanophenyl-4-n-butylbenzoate or (V) 4'-cyanophenyl-4-n-nonylbenzoate, said composition having a crystal-nematic transition temperature of -40.degree. to -20.degree. C and a nematic-isotropic transition temperature of 50.degree. to 65.degree. C.