摘要:
The present invention provides a compound represented by formula (1) defined in the specification. The invention further provides a liquid crystal composition comprising at least two compounds, which at least one compound out of them is the above compound. The invention still further provides a polymer obtained by polymerizing the above composition, and uses of the polymer such as a molded article having an optical anisotropy, an optical compensation element, a wavelength functional plate, an optical element, and a liquid crystal display element comprising the polymer.
摘要:
The present invention provides a compound represented by formula (1) defined in the specification. The invention further provides a liquid crystal composition comprising at least two compounds, which at least one compound out of them is the above compound. The invention still further provides a polymer obtained by polymerizing the above composition, and uses of the polymer such as a molded article having an optical anisotropy, an optical compensation element, a wavelength functional plate, an optical element, and a liquid crystal display element comprising the polymer.
摘要:
Novel liquid crystal compounds which are useful as a component constituting liquid crystal compositions and particularly capable of broadening the liquid crystal temperature range of the compositions due to high clearing point of the compounds, and liquid crystal compositions comprising the same, are provided, which compounds are 4-(trans-4'-alkyloxymethylcyclohexyl)benzoic acid esters having the general formula ##STR1## wherein X represents ##STR2## each represent an alkyl group of 1 to 10 carbon atoms.
摘要:
A novel 4'-(.beta.-alkyloxyethoxy)-4-cyanobiphenyl represented by the general formula: ##STR1## wherein R represents a straight alkyl group having from 1 to 6 carbon atoms, which is useful as one component of liquid crystal composition having positive dielectric anisotropy.
摘要:
An electric junction box having divisible block is adapted in which two junction blocks are accommodated in a frame of a electric junction box integral with each other from side to side, the second junction block is positioned to project higher than the first block, a thread-fastening member thread-fastening a terminal with a first electric wire to a terminal in the first junction block is positioned exposed under the second junction block, and a pair of front and rear locks is arranged vertically to be displaced locks together the first junction block and the second junction block. A second terminal with electric wire thread-fastened to a terminal base of the first junction block is surrounded by an isolating wall of the frame upstanding around the terminal base, and is positioned adjacent to an isolating outer wall of the second junction block.
摘要:
Novel liquid crystal compounds having a higher clearing point and a superior stability are provided, which are trans-4-alkyloxymethyl-1-(4'-substituted biphenylyl-4)cyclohexanes expressed by the general formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms and n represents 0 or 1.
摘要:
New liquid-crystalline compounds having a positive dielectric anisotropy, trans-4-alkyloxymethyl-1-(4'-cyanophenyl)cyclohexanes and trans-4-alkyloxymethyl-1-(4"-cyano-4'-biphenylyl)cyclohexanes expressed by the general formula ##STR1## wherein R represents an alkyl group of 1 to 8 carbon atoms and n represents 1 or 2, are provided, which compounds are useful as a component constituting liquid-crystalline compositions having superior practical performances and being stable.
摘要:
Novel compounds, 4-alkyl-cyclohexenes having at the 1-position thereof p-cyanophenyl group or 4'-cyano-4-biphenylyl group, expressed by the general formula ##STR1## wherein R represents a straight alkyl group having 1.about.9 carbon atoms and n represents 1 or 2; methods for producing the same; and nematic liquid crystal (L.C.) compositions comprising at least one member selected from the group consisting of said compounds, are provided.Said compounds having a cyclohexene ring have a lower viscosity than conventional L.C. compounds, and have effectivenesses of short response time when applied to L.C. display apparatus; superior compatibility with other L.C. compounds to form convenient L.C. mixture; and no need of separating cis- and trans-forms in the midway step of the preparation as in the prior art.
摘要:
A sealed contact device is formed by disposing a fixed electrode having a fixed contact in an air-tight space defined in a hermetical container in which an electrically insulating gas is sealed at a high pressure, a movable contact of a movable electrode is provided for contact opening and closing with the fixed contact, and means is provided with respect to the movable electrode for allowing it positively movable in the air-tight manner, whereby an optimum contact opening speed of the movable contact and at the same time a proper contact pressure are both obtainable.
摘要:
Compounds useful as lower viscosity liquid-crystalline components of which liquid-crystalline compositions are partly composed are provided, which compounds areliquid-crystalline compounds expressed by the general formula ##STR1## wherein ##STR2## and R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms, orliquid-crystalline compounds expressed by the general formula ##STR3## wherein R.sub.1 and R.sub.2 each represent an alkyl group of 1 to 8 carbon atoms.