A problem of the present invention is to provide a polymerizable compound and a polymerizable composition which cause little decrease in retardation and discoloration when a film-shaped polymer produced by polymerization is irradiated with ultraviolet/visible light for a long time at high temperature. A further problem is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body using the polymer. As a result, a compound useful as a component of a polymerizable composition was obtained. An optically anisotropic body using a polymerizable liquid crystal composition containing the compound of the present invention is useful for application to an optical film and the like.

The present invention provides a polymerizable composition containing a polymerizable liquid crystal compound represented by Formula (I) and an oxime compound,

##STR00001## in the formula, A.sup.1 and A.sup.2 each represent a phenylene group or a trans-1,4-cyclohexylene group, L.sup.1 and L.sup.2 each represent single bond, —C(═O)O—, or —OC(═O)—, Q.sup.1 and Q.sup.2 each represent a polymerizable group or the like, m and n represent an integer of 0 to 2, X may represent —X.sup.3-Sp.sup.3-Q.sup.3 or two X's may be bonded to each other to form a fused ring, X.sup.3 represents —C(═O)O—, Sp.sup.1, Sp.sup.2, and Sp.sup.3 each represent single bond, an alkylene group, or the like, Q.sup.3 represents hydrogen atom, a cycloalkyl group, a polymerizable group, or the like, and l represents an integer of 0 to 4. The polymerizable composition hardly causes yellowing after curing and is useful for manufacturing a film and a half mirror for displaying a projection image.

Provided are a thermoplastic polymer capable of reducing a dielectric dissipation factor in high frequency bands and a film thereof. The thermoplastic liquid crystal polymer includes repeating units represented by the following formulae (I), (II), (III) and (IV), in which a molar ratio of a total amount of the repeating units represented by formulae (I) and (II) to a total amount of all the repeating units in the thermoplastic liquid crystal polymer is 50 to 90 mol %, and a molar ratio of the repeating unit represented by formula (III) to the repeating unit represented by formula (IV) is the former/the latter=23/77 to 77/23.

The present invention relates to an actuator that has a specific structure, and is molded from a resin composition, in which the resin composition contains a liquid crystal polyester having a specific repeating unit and a filling material, an amount of the repeating unit including a 2,6-naphthylene group is 40 mol % or more with respect to a total number of moles of all repeating units configuring the liquid crystal polyester, and an amount of the filling material is less than 55 parts by mass with respect to 100 parts by mass of the total amount of the liquid crystal polyester and the filling material.

Some variations provide an anisotropic thermally conductive polymer composition comprising a plurality of polarizable, thermotropic main-chain liquid-crystal polymer molecules with crystalline domains. The liquid-crystal polymer molecules are in a nematic phase or a smectic phase, and at least 80% of the crystalline domains are aligned along a crystal axis. A method of making an anisotropic thermally conductive polymer composition comprises: synthesizing or obtaining a polymer containing polarizable domains; heating the polymer to form a polymer melt; cooling the polymer melt to form a thermotropic liquid-crystal polymer; exposing the thermotropic liquid-crystal polymer to an electrical field, thereby aligning the polarizable domains along a crystal axis; and recovering the thermotropic liquid-crystal polymer as an anisotropic thermally conductive polymer composition. The polymer composition may be formed into an object characterized by thermal conductivity along the minimum dimension that is at least three times greater than thermal conductivity along the maximum dimension.

A liquid crystal composition which prevents production of an alignment defect of a liquid crystal compound and also has excellent storage stability during dissolution in a solvent is provided. The liquid crystal composition is suitable for constituting a retardation film capable of favorable circular polarization conversion. The liquid crystal composition includes a polymerizable liquid crystal compound having 3 or more ring structures in the main chain, and aluminum. A content of the aluminum is 1 ppm or more and 170 ppm or less relative to the polymerizable liquid crystal compound.

A camera module containing a molded part (e.g., generally planar base, lens barrel mounted on the base, etc.) that is formed from a polymer composition is provided. The polymer composition includes a liquid crystalline polymer and inorganic particles that have a hardness value of about 2.5 or more based on the Mohs hardness scale.

A liquid crystal polymer (LCP) composite film is provided. The LCP composite film includes 88 to 99 weight percent of a liquid crystal polymer based on the total weight of the LCP composite film and 1 to 12 weight percent of a toughening agent based on the total weight of the LCP composite film. The toughening agent includes a copolymer selected from a group consisting of a thermoplastic polyolefin elastomer, a glycidyl methacrylate copolymer, a polystyrene elastomer, a polyester elastomer, and a mixture thereof.

Provided is an optical film which has a maximum absorption at a wavelength in the range of 600 to 680 nm, has a high dichroic ratio, and is excellent in light resistance. The optical film includes: a polymer of a polymerizable liquid crystal compound; and a compound represented by the following general formula (1).

##STR00001##

The present invention relates to a laminate film including a resin layer having a thickness of from 10 μm to 125 μm; and a toner layer formed on one surface of the resin layer, in which the resin layer is formed from a resin material having a glass transition temperature of 130° C. or higher, the toner layer has a plurality of voids, and when a value defined by the following formula (S1) using the void area ratio, which represents the ratio of the area of exposed voids, for the respective faces of the surface of the toner layer and a cross section of the toner layer, is designated as porosity, and when two void area ratios respectively corresponding to the cross sections of the toner layer in two orthogonally intersecting directions are used as the void area ratios of the cross sections of the toner layer, the porosities respectively calculated according to the two void area ratios are both from 0.01% to 0.40%.

[00001]$\begin{array}{cc}\mathrm{Porosity}.Math..Math.\left(\%\right)=\frac{\mathrm{Void}.Math..Math.\mathrm{area}.Math..Math.\mathrm{ratio}.Math..Math.\mathrm{of}.Math..Math.\mathrm{cross}.Math..Math.\mathrm{section}.Math..Math.\left(\%\right)}{100}\times \frac{\mathrm{Void}.Math..Math.\mathrm{area}.Math..Math..Math.\mathrm{ratio}.Math..Math.\mathrm{of}.Math..Math.\mathrm{surface}.Math..Math.\left(\%\right)}{100}\times 100& \end{array}$