Cosmetic

Patent metadata

Field	Value
Publication number	US-11020331-B2
Application number	US-201816767946-A
Country	US
Kind code	B2
Filing date	Sep 21, 2018
Priority date	Nov 29, 2017
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

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.

First claim

The invention claimed is:

1. A cosmetic product comprising
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 I 2 /I 1 of 1 to 30, where I 1 is a maximum emission intensity in the range of 530 to 620 nm and I 2 is a maximum peak intensity in the range of 620 to 720 nm,
wherein the cosmetic product contains a mixture containing:
a phosphor containing at least one selected from the group consisting of
a complex oxide containing Mn in a compound of the following formula (1), the Mn being present in a proportion of 0.00005 to 0.05 mol relative to 1 mol of magnesium in the compound:
Mg x Ti y O z   (1)

wherein x, y, and z satisfy 1.5<x<2.5, 0.5<y≤1.5, and z=x+2y, and
a complex oxide containing Mn in a compound of the following formula (2), the Mn being present in a proportion of 0.000042 to 0.0083 mol relative to 1 mol of aluminum in the compound:
Ca x Al y O z   (2)

wherein x, y and z satisfy 0.1<x<1.05, 11.9<y≤12, and z=(2x+3y)/2; and
a phosphor containing at least one selected from the group consisting of
a complex oxide containing Ce in a compound of the following formula (3), the Ce being present in a proportion of 0.0005 to 0.05 mol relative to 1 mol of phosphorus in the compound:
Ca x P y O z   (3)

wherein x, y and z satisfy 3.2≤x≤5.0, 1.9≤y≤2.1, and z=x+5, and
a fluorescent zinc oxide.

2. The cosmetic product according to claim 1 ,
wherein the emission spectrum emitted upon excitation by excitation light having a wavelength of 365 nm has an I 2 /I 3 of 1 to 40, where I 3 is a maximum peak intensity in the range of 400 to 530 nm and I 2 is the maximum peak intensity in the range of 620 to 720 nm.

3. The cosmetic product according to claim 1 ,
wherein the cosmetic product has an emission color with an x value of the CIE chromaticity coordinates in the range of 0.25 to 0.55 and a y value of the CIE chromaticity coordinates in the range of 0.22 to 0.42 upon excitation by excitation light having a wavelength of 365 nm.

4. The cosmetic product according to claim 1 ,
wherein the cosmetic product has a phosphor content of 0.1 to 20% by weight relative to the entire cosmetic product.

5. The cosmetic product according to claim 1 ,
wherein the cosmetic product has an internal quantum efficiency of 1 to 40% upon excitation by excitation light having a wavelength of 365 nm.

6. The cosmetic product according to claim 1 , which is in a form selected from powder foundations, liquid foundations, face powders, eye shadows, and makeup films.

7. The cosmetic product according to claim 1 ,
wherein the emission spectrum emitted upon excitation by excitation light having a wavelength of 365 nm has a broad fluorescence peak in the range of 400 to 530 nm, and a distance between two points indicating half of a maximum peak intensity in the range of 400 to 530 nm is 50 to 200 nm.

Assignees

• Sakai Chemical Industry Co

Inventors

• Koizumi Hisao
• Ishikawa Momoko
• Ogata Nanae
• Mori Kenji

Classifications

• C09K11/7724

  with alkaline earth metals · CPC title

• C09K11/576

  with alkaline earth metals · CPC title

• A61K8/24

  Phosphorous; Compounds thereof · CPC title

• C09K11/54

  containing zinc or cadmium · CPC title

• A61Q1/10

  for eyes, e.g. eyeliner, mascara · CPC title