Abstract:
The inventors have investigated a fluorescent substance being safe and having a high color developing property, and it is one of objects of the present disclosure to obtain an inorganic red fluorescent substance consisting of an element which exerts no bad influence upon human bodies.A cosmetic containing inorganic particles consisting of a compound represented by a general formula: CaxAlyO(2x+3y+4z)/2:Mn4+z wherein 0.1
Abstract:
A mechanoluminescent material is obtained by mixing a phosphate compound and europium-activated strontium aluminate particles into slurry; grinding the slurry into ground slurry; and drying the ground slurry, wherein the rate of change calculated from a formula (A−B)/A×100 is 10% or less, where A is the strontium content in the obtained mechanoluminescent material, and B is the strontium content in the mechanoluminescent material after 168 hours of storage in an atmosphere at a temperature of 85° C. and a relative humidity of 85%.
Abstract:
The present invention provides a cosmetic product capable of making the skin look youthful and producing a natural three-dimensional appearance. The present invention relates to a cosmetic product including two or more phosphors each containing an inorganic compound, wherein the cosmetic product, upon excitation by excitation light having a wavelength of 365 nm, emits an emission spectrum having a fluorescence emission peak in each of the range of 400 to 530 nm and the range of 620 to 720 nm and having an I2/I1 of 1 to 30, where I1 is a maximum emission intensity in the range of 530 to 620 nm and I2 is a maximum peak intensity in the range of 620 to 720 nm.
Abstract:
The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on their surfaces either a coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base, or an inner coat layer of an oxide of at least one element selected from silicon, aluminum and zirconium or a composite oxide of at least two elements selected from silicon, aluminum and zirconium in an amount of from 1 to 20 parts by weight per 100 parts by weight of the solid base and an outer coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base, and wherein the solid base is hydrotalcite.
Abstract:
The present invention aims to provide a mechanoluminescent material which is excellent in mechanoluminescent properties and can achieve a mechanoluminescence intensity sufficiently suited to practical use, a raw material composition for producing the mechanoluminescent material, and a method for producing a mechanoluminescent material. The mechanoluminescent material of the present invention includes strontium aluminate as a base material, a Eu ion, and at least one ion selected from the group consisting of Nd, Dy, and Ho. An amount of the Eu ion contained in the mechanoluminescent material is 0.0001 to 0.1 mol per mole of the strontium aluminate. An amount of the at least one ion selected from the group consisting of Nd, Dy, and Ho contained in the mechanoluminescent material is, as the sum of amounts of the three ions Nd, Dy, and Ho, 0.0001 to 0.01 mol per mole of the strontium aluminate. The present invention also provides a raw material composition for a mechanoluminescent material used for synthesizing the mechanoluminescent material, a mechanoluminescent coating composition and a resin composition each containing the mechanoluminescent material, and applied articles such as mechanoluminescent articles formed from the resin composition.
Abstract:
The present invention provides a method for easily and simply producing a zinc oxide phosphor that has a high level of safety and a high emission intensity and is useful for, for example, cosmetic applications. The present invention also provides a zinc oxide phosphor having such excellent physical properties and a cosmetic product containing the same. Provided is a method for producing a zinc oxide phosphor, including: a raw material mixing step of mixing an oxygen-containing zinc compound and a sulfur-containing compound; and a firing step of firing the raw material mixture obtained in the raw material mixing step, the firing step including firing in a reducing atmosphere followed by firing in an oxygen-containing atmosphere.