Cosmetic preparations containing photostable UV-A filters

US6007828A · kind A · utility

Assignee

• BASF SE

Inventors

• Martin Holderbaum · Ludwigshafen, DE
• Alexander Aumuller · Neustadt, DE
• Karin Sperling · Neustadt, DE
• Horst Westenfelder · Neustadt, DE
• Thomas Wunsch · Speyer, DE

Key dates

• Filing date: Apr 29, 1998
• Grant date: Dec 28, 1999
• Expiry date: Apr 29, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/52
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A sunscreen-containing cosmetic formulation to protect the human epidermis from UV light in the range from 280 to 400 nm, which formulation includes a cosmetically suitable carrier, together with compounds which absorb in the UV-B region and as photostable UV-A filters effective amounts of compounds of the formula I as defined in the specification.