Patent · US Expired

Powdery cosmetic composition and method of making same

US6488918B2 · kind B2 · utility

4Cited by

4References

7Claims

0Family size

Assignee

Wella GmbH · DE

Inventors

Gabriele Hess · Langen (Hessen), DE
Dirk Lauscher · Seeheim-Jugenheim, DE
Juergen Schmenger · Weiterstadt, DE

Key dates

Filing date	Nov 28, 2001
Grant date	Dec 3, 2002
Priority date	—
Expiry date	Nov 28, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S424/03
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The powdery bleaching composition has improved storage stability and contains from 25 to 70 percent by weight of at least one solid per-compound as effective bleaching agent and from about 0.1 to about 20 percent by weight of at least one cross-linked silicone elastomer. The at least one cross-linked silicone elastomer is made by cross-linking with an alpha, omega-diene or a vinyl-polysiloxane and preferably is a dimethicone/vinyl-dimethicone crosspolymer or a cyclopentasiloxane and dimethicone crosspolymer. Simple methods of making the powdery cosmetic compositions are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.