A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.

An object of the present invention is to provide a polymerizable composition with which a polymer having a high degree of hardness can be produced. Another object is to provide, for example, an optically anisotropic body, a phase retardation film, an optical compensation film, an antireflection film, a lens, and a lens sheet that are composed of the polymerizable composition and a liquid crystal display element, an organic light-emitting display element, a lighting element, an optical component, a coloring agent, a security marker, a laser emission member, a polarizing film, a coloring material, and a printed item that are produced using the polymerizable composition. The present invention provides a polymerizable composition including a polymerizable compound represented by General Formula (IA) which has a specific structure including a plurality of polymerizable groups.

An object of the present invention is to provide a polymerizable composition with which a polymer having a high degree of hardness can be produced. Another object is to provide, for example, an optically anisotropic body, a phase retardation film, an optical compensation film, an antireflection film, a lens, and a lens sheet that are composed of the polymerizable composition and a liquid crystal display element, an organic light-emitting display element, a lighting element, an optical component, a coloring agent, a security marker, a laser emission member, a polarizing film, a coloring material, and a printed item that are produced using the polymerizable composition. The present invention provides a polymerizable composition including a polymerizable compound represented by General Formula (IA) which has a specific structure including a plurality of polymerizable groups.

A container suitable for storing a polymerizable liquid crystal composition liquid intended for providing, after temporal or long-term storage, a liquid crystal cured layer that is homogeneous and hardly causes alignment defects is described. A container containing a polymerizable liquid crystal composition liquid includes a gas phase part and a liquid phase part containing a polymerizable liquid crystal composition liquid. The polymerizable liquid crystal composition liquid contains a polymerizable liquid crystal compound; at least one solvent selected from a ketone solvent, an amide solvent, an ester solvent, and an ether solvent; a photopolymerization initiator, and a polymerization inhibitor in an amount of 0.1% by mass or more and 2% by mass or less based on the polymerizable liquid crystal compound. The gas phase part has an oxygen concentration of 0.05% by volume or more and 20.8% by volume or less.

A container suitable for storing a polymerizable liquid crystal composition liquid intended for providing, after temporal or long-term storage, a liquid crystal cured layer that is homogeneous and hardly causes alignment defects is described. A container containing a polymerizable liquid crystal composition liquid includes a gas phase part and a liquid phase part containing a polymerizable liquid crystal composition liquid. The polymerizable liquid crystal composition liquid contains a polymerizable liquid crystal compound; at least one solvent selected from a ketone solvent, an amide solvent, an ester solvent, and an ether solvent; a photopolymerization initiator, and a polymerization inhibitor in an amount of 0.1% by mass or more and 2% by mass or less based on the polymerizable liquid crystal compound. The gas phase part has an oxygen concentration of 0.05% by volume or more and 20.8% by volume or less.

The disclosure provides thianthrene derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several thianthrene structures are described, including structures substituted by halogens, sulphur containing groups, phenyl groups, at least one polymerizable group, etc. Thianthrene derivatized polymers in Bragg gratings applications lead to materials with higher refractive index, low birefringence, and less packing in solid state. Thianthrene derivatized monomers/polymers can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.

The disclosure provides thianthrene derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several thianthrene structures are described, including structures substituted by halogens, sulphur containing groups, phenyl groups, at least one polymerizable group, etc. Thianthrene derivatized polymers in Bragg gratings applications lead to materials with higher refractive index, low birefringence, and less packing in solid state. Thianthrene derivatized monomers/polymers can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.