Abstract: The solid titanium catalyst component (I) of the present invention contains titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the following formula (1).

Abstract: A solid titanium catalyst component (I) for olefin polymer production contains titanium, magnesium, halogen, and a cyclic multiple-ester-group-containing compound (a) represented by the formula (1). Preferably, a propylene polymer that is obtained by the olefin polymerization method and has specific thermal properties as determined primarily by differential scanning calorimetry (DSC).

Abstract: A propylene resin composition includes a propylene polymer (A) satisfying requirements (1) to (3) below: (1) having a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) of 5000 to 22000; (2) having a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) measured by gel permeation chromatography (GPC) being 1.2 to 3.5; and (3) having a proportion of a component eluted at a temperature of not more than ?20° C. in temperature rising elution fractionation (TREF) being not more than 3.5 mass %.

Abstract: An object of the present invention is to provide a highly heat resistant and highly rigid propylene-based polymer having unprecedentedly high stereoregularity. The propylene-based polymer of the present invention satisfies requirements (1) to (4) and preferably requirement (5): (1) an average meso chain length is 800 to 100,000; (2) a MFR is 0.5 to 1,000 g/10 minutes; (3) a ratio of Mw to Mn, Mw/Mn, as measured by GPC is 4.2 to 20; (4) when the ratio of a component which elutes at a temperature of 122° C. or more as measured by temperature rising elution fractionation (TREF) is A % by weight and the melt flow rate of the requirement (2) is B g/10 minutes, 100?A?20×EXP(?0.01×B); (5) an amount of a component soluble in n-decane at 23° C. is 0.01 to 2% by weight.

Abstract: An object of the present invention is to provide a highly heat resistant and highly rigid propylene-based polymer having unprecedentedly high stereoregularity. The propylene-based polymer of the present invention satisfies requirements (1) to (4) and preferably requirement (5): (1) an average meso chain length is 800 to 100,000; (2) a MFR is 0.5 to 1,000 g/10 minutes; (3) a ratio of Mw to Mn, Mw/Mn, as measured by GPC is 4.2 to 20; (4) when the ratio of a component which elutes at a temperature of 122° C. or more as measured by temperature rising elution fractionation (TREF) is A % by weight and the melt flow rate of the requirement (2) is B g/10 minutes, 100?A?20*EXP(?0.01*B); (5) an amount of a component soluble in n-decane at 23° C. is 0.01 to 2% by weight.

Abstract: An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers.

Abstract: A thermal transfer image receiving sheet containing a substrate having thereon a thermal insulation layer, an intermediate layer and an image receiving layer in that order, wherein the thermal insulation layer, the image receiving layer and the intermediate layer each is formed by an aqueous coating method.

Abstract: An object of the invention is to provide copolymers which have a double bond in a side chain and are substantially free of unsaturated bonds in the main chain, copolymers which have a cyclic structure and are substantially free of unsaturated bonds in the main chain, and processes for economically synthesizing these copolymers. A copolymer of the invention is obtained by copolymerizing at least ethylene and a conjugated diene. In the copolymer, structural units derived from the conjugated diene represent 1 to 90 mol %.

Abstract: [Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties.

Abstract: A thermal transfer image receiving sheet containing a substrate having thereon a thermal insulation layer, an intermediate layer and an image receiving layer in that order, wherein the thermal insulation layer, the image receiving layer and the intermediate layer each is formed by an aqueous coating method.

Abstract: A thermal transfer image receiving sheet containing a substrate having thereon a thermal insulation layer, an intermediate layer and an image receiving layer in that order, wherein the thermal insulation layer, the image receiving layer and the intermediate layer each is formed by an aqueous coating method.

Abstract: Ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity are provided, in which requirements (A) to (E): (A) The intrinsic viscosity [?] measured in decalin at 135° C. is in the range of 0.1 to 50 dl/g, (B) at least 95 wt % or more of particles pass through a mesh screen with an opening of 37 ?m, (C) the median diameter (d50) measured by laser diffraction scattering is 3 ?m?d50?25 ?m, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less. Non-agglomerated spherical magnesium-containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles are also provided.

Abstract: The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 ?m to 0.07 ?m; a film thickness of the silver halide emulsion layer is 4 ?m to 9 ?m; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.

Abstract: The metallocene compound according to the invention and the olefin polymerization catalyst containing the compound are intended to produce a catalyst capable of preparing an isotactic polymer with a high polymerization activity. The metallocene compound contains a substituted cyclopentadienyl group and a (substituted) fluorenyl group and has a structure wherein these groups are bridged by a hydrocarbon group or the like. The process for preparing a metallocene compound according to the invention is intended to selectively prepare a specific metallocene compound so as not to produce an isomer, and in this process an intermediate product is synthesized by a specific method.

Abstract: Ethylene-based copolymer microparticles and functional group-containing ethylene-based copolymer microparticles that have particle diameter smaller than that of conventional polyethylene fine-particles, no inter-particle agglomeration, very narrow particle size distribution, and high sphericity are provided, in which requirements (A) to (E): (A) The intrinsic viscosity [?] measured in decalin at 135° C. is in the range of 0.1 to 50 dl/g, (B) at least 95 wt % or more of particles pass through a mesh screen with an opening of 37 ?m, (C) the median diameter (d50) measured by laser diffraction scattering is 3 ?m?d50?25 ?m, (D) the circularity coefficient is 0.85 or more, and (E) the variation coefficient of particle diameter (Cv) is 20% or less. Non-agglomerated spherical magnesium-containing microparticles used as magnesium-containing carrier component for olefin-polymerization catalysts that can manufacture the above microparticles are also provided.

Abstract: [Task] To provide a catalyst for olefin polymerization having an excellent olefin polymerization performance and capable of producing a polyolefin with excellent properties.

Abstract: The present invention is characterized to provide a hologram silver halide photographic material having high sensitivity and diffraction efficiency, providing an excellent image and having less color residue and noise in a transparent part, a hologram, a method for producing the same. In the present invention, a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein an average particle diameter of silver halide particles in a silver halide emulsion is 0.03 ?m to 0.07 ?m; a film thickness of the silver halide emulsion layer is 4 ?m to 9 ?m; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains sensitizing dye of specific structure.

Abstract: A thermal transfer image receiving sheet comprising a heat insulating layer and a layer adjacent to the heat insulating layer on a substrate, wherein the heat insulating layer is provided between the layer and the substrate, the heat insulating layer contains hollow particles in an amount of at least 65 percent by mass, and the heat insulating layer and the layer are formed by simultaneous multi-layer coating.

Abstract: A thermal transfer image receiving sheet comprising a heat insulating layer and a layer adjacent to the heat insulating layer on a substrate, wherein the heat insulating layer is provided between the layer and the substrate, the heat insulating layer contains hollow particles in an amount of at least 65 percent by mass, and the heat insulating layer and the layer are formed by simultaneous multi-layer coating.

Abstract: A thermal transfer image receiving sheet containing a substrate having thereon a thermal insulation layer, an intermediate layer and an image receiving layer in that order, wherein the thermal insulation layer, the image receiving layer and the intermediate layer each is formed by an aqueous coating method.