Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition. [Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).

Abstract: Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (?) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.

Abstract: The present invention provides an improved adhesion when a polymerizable liquid crystal composition is applied to a film substrate and cured, improved storage stability of the composition when the composition is used in a PSA display device, and a liquid crystal display device having improved display characteristics. The polymerizable compound is represented by general formula (I). The invention provides an optically anisotropic film using the polymerizable compound, and a liquid crystal display device using the polymerizable compound.

Abstract: [Object] An object of the present invention is to provide a liquid crystal composition containing a polymerizable compound for use in the manufacture of a PSA or PSVA liquid crystal display device. The polymerizable compound has a sufficiently high polymerization rate. The PSA or PSVA liquid crystal display device has few or no display defects due to a change in pretilt angle, has an adequate pretilt angle, and has high responsiveness. The present invention also provides a liquid crystal display device having the liquid crystal composition. [Solution] The object is achieved by using a liquid crystal composition containing one or two or more polymerizable compounds represented by the general formula (I).

Abstract: Provided are a compound represented by general formula (I), a liquid crystal composition that uses the compound, and a liquid crystal display device that uses the liquid crystal composition. Adding the compound represented by general formula (I) to a liquid crystal composition can prevent degradation of the liquid crystal composition by light, heat, etc. The compound represented by general formula (I) dissolves well in the liquid crystal composition. Thus, when the compound represented by general formula (I) is used, a liquid crystal composition having both low viscosity (?) and high reliability can be prepared, and a high-speed response liquid crystal display device can be provided.

Abstract: An object which the present invention is to achieve is to provide a urethane composition capable of providing a molded product having excellent heat resistance and high hardness. The present invention is to provide a urethane composition containing a main agent (i) including a urethane prepolymer having an isocyanate group obtained by allowing a polyol (A) and a polyisocyanate (B) to react with each other, and a curing agent (ii), in which the polyol (A) includes a polyether polyol (a1) obtained by polymerizing an aromatic compound (a1-1) having two or more active hydrogen atom-containing groups and an alkylene oxide (a1-2), and a polishing material obtained by curing the urethane composition with heat, followed by slicing.