Barium sulfate and cosmetic compositions comprising same

Details Barium sulfate and cosmetic compositions comprising same Barium sulfate and cosmetic compositions comprising same

1991-03-06

1992-12-15

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 69, 424489, 424499, 424501, 424 7803, 423638, 106461, 106471, A61K 7035

Patent

active

051715724

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.

REFERENCES:
patent: 4272296 (1981-06-01), Balducci
patent: 4296089 (1981-10-01), Aignesberger
patent: 4316746 (1982-02-01), Rustioni
patent: 4603047 (1986-07-01), Watanabe
patent: 4804533 (1989-02-01), Imamura
patent: 4894093 (1990-01-01), Aderhold
Ishii et al., Chemical Abstracts, vol. 112, No. 16, Apr. 16, 1990.

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