The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
Mar. 29, 2002
Takayuki Sakiguchi, Yokohama, JP;
Norinobu Yoshikawa, Yokohama, JP;
Keiko Sakai, Yokohama, JP;
Makio Akimoto, Yokohama, JP;
Kazuhisa Ohno, Yokohama, JP;
Hiroshi Fukui, Yokohama, JP;
Takayuki Sakiguchi, Yokohama, JP;
Norinobu Yoshikawa, Yokohama, JP;
Keiko Sakai, Yokohama, JP;
Makio Akimoto, Yokohama, JP;
Kazuhisa Ohno, Yokohama, JP;
Hiroshi Fukui, Yokohama, JP;
Shiseido Research Center, Kanagawa, JP;
Abstract
The invention provides a color-developing composition without using a pigment or dye and capable of being colored sustainably and stably after mixing two liquid phases which are colorless before mixing. The composition consists of two discrete liquid phases, wherein the refractive index of each liquid phase is identical to each other at a point within the wavelength range from 400 nm to 800 nm, wherein a continuous layer and a dispersion layer are formed by mixing and dispersing said two phases whereby developing a color. Alternatively, the composition is a powder dispersion consisting of a liquid phase and a silica powder-containing solid phase, wherein said liquid phase has a refractive index nand said silica has a refractive index n, which satisfy Equation (1):|1−2|<0.05  (1)whereby developing a color on the basis of the difference in the refractive index at the interface between the liquid phase and the solid phase. The present invention also provides a cosmetic preparation, a fragrance product and a display article using the composition.