Patent · US Expired

Foamable creams

US4808388A · kind A · utility

99Cited by

3References

7Claims

0Family size

Assignee

Merz + Co. GmbH & Co. · DE

Inventors

Rolf D. Beutler · Höchst im Odenwald, DE
Thomas Wimmer · Rosenheim, DE
Gunhild Angst · Bad Camberg, DE

Key dates

Filing date	Aug 18, 1987
Grant date	Feb 28, 1989
Priority date	—
Expiry date	Aug 18, 2007

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q19/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Foamable cosmetic creams for application onto the skin, comprising a selected creamy oil-in-water emulsion and a selected propellant, which may be and advantageously is a single propellant gas, are disclosed. Improvement of the froth properties is effected by predetermined control of the ingredients of the composition and their proportions, comprising specific percentage ranges of nonionic emulsifier, oil portion, consistency-providing agent, and water, a viscosity of the starting cream emulsion formed therefrom between about 200 and 500 mPas, and the propellant employed, which consists essentially of nitrous oxide or carbon dioxide, preferably nitrous oxide.

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