Compound, liquid crystal composition, optical anisotropic...

Details Compound, liquid crystal composition, optical anisotropic... Compound, liquid crystal composition, optical anisotropic...

2011-08-30

2011-08-30

Visconti, Geraldina (Department: 1722)

Compositions

Liquid crystal compositions

C252S299600, C252S299630, C349S183000, C349S187000, C428S001100, C430S020000

Reexamination Certificate

active

08007682

ABSTRACT:
A compound of the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?CH2═CR1—COO—R2—OCO-Cy-COO-Cy-A-Cy-R3  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein R1is a hydrogen atom or a methyl group; R2is a hydrocarbon group having from 1 to 8 carbon atoms, provided that some or all of hydrogen atoms bonded to carbon atoms in the group may be substituted by fluorine atoms, and when it has 2 or more carbon atoms, it may have an etheric oxygen atom in a carbon-carbon bond, R3is an alkyl or alkoxy group having from 1 to 8 carbon atoms, or a fluorine atom, provided that when it is the alkyl or alkoxy group, some or all of hydrogen atoms bonded to carbon atoms in the group may be substituted by fluorine atoms; Cy is a trans-1,4-cyclohexylene group, provided that hydrogen atoms bonded to carbon atoms in the group may independently be substituted by fluorine atoms, chlorine atoms or methyl groups; and A is a single bond, a trans-1,4-cyclohexylene group or a 1,4-phenylene group, provided that hydrogen atoms bonded to carbon atoms in the group may independently be substituted by fluorine atoms, chlorine atoms or methyl groups.

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