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:
Nov. 16, 1993
Filed:
Aug. 27, 1992
Hiroki Sugasawa, Funabashi, JP;
Satoshi Takano, Funabashi, JP;
Mikio Sakaguchi, Wakayama, JP;
Ichiro Sakamoto, Wakayama, JP;
Minoru Iwata, Matsudo, JP;
Nariyuki Kurotani, Chiba, JP;
Hideaki Koizumi, Tokyo, JP;
Hiroshi Itoh, Koganei, JP;
Risa Maejima, Kasukabe, JP;
KAO Corporation, Tokyo, JP;
Abstract
Barium sulfate having a specific crystal structure and optical characteristics is disclosed. The crystals have a plate-like structure of which the aspect ratio is 5-100 and the ratio of the square of the circumference of the plate and the area of the orthogonal projection plane is 20:1-150:1. In a preferred embodiment, a thin film of 25 .mu.m thickness with 20% by weight of the barium sulfate powder concentration has a scattering transmittance of 70% or greater and a total transmittance of 85% or greater. The cosmetic compositions to which the barium sulfate is incorporated exhibits excellent extendibility and adhesion to the skin and can effectively hide the spots or freckles on the skin. The cosmetic composition satisfies both the fine naked skin feeling and the skin covering effect, which have never been satisfied by conventional cosmetic compositions.