Abstract: An LED luminaire cover light diffuser and a use thereof are provided. The LED luminaire cover light diffuser is used for an illumination cover of an LED luminaire that illuminates a target object to enable the target object to be seen. The LED luminaire cover light diffuser includes base resin; light diffusing agent; and a coloring matter that at least partially absorbs light in a wavelength range from 500 to 600 nm. The LED luminaire cover light diffuser achieves a relative value of spectral radiance at a wavelength of 450 nm within a range from 1.60 to 15 with the spectral radiance at the wavelength of 550 nm defined as 1, when the spectral radiance is measured with a specific white LED used as a measurement light source and with the LED luminaire cover light diffuser provided to cover the white LED.

Abstract: A molded article made of a light-diffusing resin composition which can color transmitted light, and use of the molded article are provided. In the molded article made of a light-diffusing resin composition (hereinafter “molded article”), the light-diffusing resin composition contains a thermoplastic resin and transparent particles which are dispersed in the resin and which have a volume-average particle size of 1-100 ?m. The molded article has a total light transmittance of 85% or higher, and a degree of dispersion of 20° or less, wherein the degree of dispersion is defined as a transmission angle at which a light transmittance is 50% of a rectilinear light transmittance when light is emitted to a surface of the molded article in a direction normal to the surface. An average rectilinear light transmittance at wavelengths from 410-500 nm is greater than an average rectilinear light transmittance at wavelengths from 500-600 nm.

Abstract: There is provided a light diffuser which can alleviate glare of light emitted from a light source while preventing a decrease in brightness of the emitted light despite the presence of the light diffuser. The light diffuser, contains a thermoplastic resin and transparent particles added thereto. The light diffuser has a total light transmittance in a range of 50 to 85%, and a wavelength selectivity in a rectilinear light ratio in a range of 1.5 to 5.0, as obtained by following formulas (1)-(3): (wavelength selectivity in rectilinear light ratio)=(rectilinear light ratio of 550-nm light)/(rectilinear light ratio of 450-nm light)??(1) (rectilinear light ratio of 550-nm light)=(rectilinear light transmittance for 550-nm light)/(total transmittance for 550-nm light)??(2) (rectilinear light ratio of 450-nm light)=(rectilinear light transmittance for 450-nm light)/(total transmittance for 450-nm light)??(3).

Abstract: Spacer particles for a resin composition layer have a compressive strength at 10% compressive deformation (10% compressive strength) at room temperature (rt) of 0.05 to 10 MPa, have a rate of change in 10% compressive strength-by a temperature change from rt to 50° C. of 5% or less or have a rate of change in 10% compressive strength by a temperature change from ?20° C. to rt of 30% or less, and have a volume average particle diameter of 2 to 200 ?m and a coefficient of variation in particle diameter of 15% or less.

Abstract: A light diffuser and its use are provided, which not only reduces a color change in a source light when the light diffuser is disposed on an optical path of a light source, but also has a good light transmission property and a good light diffusion property. The light diffuser contains a thermoplastic resin and transparent particles added thereto. The total light transmittance of the light diffuser is 75% or more. The degree of dispersion of the light diffuser is 2° or more, the degree of dispersion being defined as a transmission angle at which a light transmittance is 50% of a rectilinear light transmittance when light is emitted to a surface of the light diffuser in a direction normal to the surface. The difference between the rectilinear light transmittance at 460 nm and the rectilinear light transmittance at 580 nm of the light diffuser is 0.96% or less.

Abstract: A light diffuser and its use are provided, which not only reduces a color change in a source light when the light diffuser is disposed on an optical path of a light source, but also has a good light transmission property and a good light diffusion property. The light diffuser contains a thermoplastic resin and transparent particles added thereto. The total light transmittance of the light diffuser is 75% or more. The degree of dispersion of the light diffuser is 2° or more, the degree of dispersion being defined as a transmission angle at which a light transmittance is 50% of a rectilinear light transmittance when light is emitted to a surface of the light diffuser in a direction normal to the surface. The difference between the rectilinear light transmittance at 460 nm and the rectilinear light transmittance at 580 nm of the light diffuser is 0.96% or less.

Abstract: Porous resin particles are disclosed that comprise a polymer of a monomer mixture. The monomer mixture includes: a mono(meth)acrylate-based monomer in an amount of 3 wt % to 40 wt % containing: an ethylenic unsaturated group only in a (meth)acrylic acid residue; and a hydroxyl group and at least either an ether group or an ester group in an alcohol residue; another monofunctional vinyl-based monomer in an amount of 10 wt % to 69 wt % containing a single ethylenic unsaturated group; and a polyfunctional vinyl-based monomer in an amount of 30 wt % to 70 wt % containing two or more ethylenic unsaturated groups.

Abstract: There is provided a light diffuser which can alleviate glare of light emitted from a light source while preventing a decrease in brightness of the emitted light despite the presence of the light diffuser. The light diffuser, contains a thermoplastic resin and transparent particles added thereto. The light diffuser has a total light transmittance in a range of 50 to 85%, and a wavelength selectivity in a rectilinear light ratio in a range of 1.5 to 5.0, as obtained by following formulas (1)-(3): (wavelength selectivity in rectilinear light ratio)=(rectilinear light ratio of 550-nm light)/(rectilinear light ratio of 450-nm light)??(1) (rectilinear light ratio of 550-nm light)=(rectilinear light transmittance for 550-nm light)/(total transmittance for 550-nm light)??(2) (rectilinear light ratio of 450-nm light)=(rectilinear light transmittance for 450-nm light)/(total transmittance for 450-nm light)??(3).

Abstract: The present application provides a composite particle having a good feeling upon application and capable of effectively preventing make-up smudges by selectively adsorbing sebum, particularly, free fatty acid, and moreover, having a toning effect on the skin texture, and a cosmetic composition containing the composite particle. The composite particle of the present invention comprises a resin particle coated on its surface with amorphous calcium phosphate and calcium carbonate, which resin particle contains a polymer of a vinyl monomer and any one of a phosphorous acid diester component having a certain configuration and a partially esterified phosphoric acid component having a certain configuration.

Abstract: Porous resin particles are disclosed that comprise a polymer of a monomer mixture. The monomer mixture includes: a mono(meth)acrylate-based monomer in an amount of 3 wt % to 40 wt % containing: an ethylenic unsaturated group only in a (meth)acrylic acid residue; and a hydroxyl group and at least either an ether group or an ester group in an alcohol residue; another monofunctional vinyl-based monomer in an amount of 10 wt % to 69 wt % containing a single ethylenic unsaturated group; and a polyfunctional vinyl-based monomer in an amount of 30 wt % to 70 wt % containing two or more ethylenic unsaturated groups.

Abstract: Spacer particles for a resin composition layer have a compressive strength at 10% compressive deformation (10% compressive strength) at room temperature (rt) of 0.05 to 10 MPa or a compressive strength at room temperature of 0.01 to 2 N determined as a compressive load at 10% compressive deformation in a film state, have a rate of change in 10% compressive strength by a temperature change from rt to 50° C. of 5% or less, a rate of change in 10% compressive strength by a temperature change from ?20° C. to rt of 30% or less, or a rate of change in compressive strength by a temperature change from ?50° C. to 50° C. of 15% or less determined as a compressive load at 10% compressive deformation in a film state, and have a volume average particle diameter of 2 to 200 ?m and a coefficient of variation in particle diameter of 15% or less.

Abstract: In the case where a heater main body (1) is bent so as to be wound around a subject to be heated such as a water pipe, etc., a heater can stably heats the subject to be heated. A plurality of heating elements (2), which are composed of ceramics as positive-characteristic thermistors and have electrodes on both sides of the heating elements, are sealed along a lengthwise direction of the heater main body (1) with flexibility and electrical insulation at intervals. Pairs of feeders (3) for feeding electricity to the heating elements (2) are provided to the heater main body (1). A holder (5) having electrical conductivity is provided into the heater main body (1) so as to connect the heating elements (2) to the feeders (3) and retain them. The holder (5) reduces faulty electrical connection between the feeders (3) and the heating elements (2), and thus the heat generation by the heating elements (2) can be stabilized.

Abstract: A heater includes a heating element made of a PTC thermistor, electrodes formed on upper and lower surfaces of the heating element, flat metallic terminals connected to the electrodes, lead wires connected to inner surfaces of the metallic terminals that face each other, and an insulating case for covering exposed portions of the heating element, electrodes, and of the metallic terminals, and the connections between the lead wires and the metallic terminals. With this structure, since no bumps are produced on the outer surfaces of the metallic terminals by connecting the lead wires to the metallic terminals, the thickness of the insulating case over the metallic terminals is reduced. This allows a reduction in the thickness of the heater and an improved heat transfer between the heating element and the heated object.