Process for preparing barium sulfate

Details Process for preparing barium sulfate Process for preparing barium sulfate

1992-08-27

1993-11-16

Page, Thurman K.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

106461, 106471, C01F 1146

Patent

active

052621480

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 et al.
patent: 4603047 (1986-07-01), Watanabe et al.
patent: 4804533 (1989-02-01), Imamura et al.
patent: 4894093 (1990-01-01), Aderhold et al.
Ishii et al, Chemical Abstracts, vol. 112, No. 16, Apr. 16, 1990.

Affiliated with

Also associated with

Rating

Process for preparing barium sulfate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing barium sulfate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing barium sulfate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-20676