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:
Oct. 19, 1999
Filed:
Jan. 27, 1998
Takakiyo Mine, Tsukuba, JP;
Tomoyuki Yui, Tsukuba, JP;
Masahiro Johno, Tsukuba, JP;
Hiroshi Mineta, Tsukuba, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
Novel anti-ferroelectric liquid crystal compounds of the formula (1), ##STR1## wherein R is a linear alkyl group having 6 to 12 carbon atoms, X is a hydrogen atom or a fluorine atom, n is an integer of 2 to 7, p is an integer of 0 to 2 and C* is an asymmetric carbon atom. The above anti-ferroelectric liquid crystal compounds have an anti-ferroelectric phase in a broad temperature range and have a low melting point, so that they can be advantageously used as a main component for a practically valuable liquid crystal material or as a component for a liquid crystal composition.