Use of sunscreen combinations comprising, as essential constituent, 4,4′-diarylbutadienes as photostable UV filters in cosmetic and pharmaceutical preparations

US6391289B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Thomas Heidenfelder · Münstermaifeld, DE
• Thorsten Habeck · Meckenheim, DE
• Thomas Wunsch · Speyer, DE

Key dates

• Filing date: Mar 14, 2001
• Grant date: May 21, 2002
• Expiry date: Mar 14, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q19/001
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Sunscreen combinations which comprise, as constituent which absorbs in the UV-A region, 4,4′-diarylbutadienes, and at least one further sunscreen which absorbs in the UV-A region, UV-B region or in both regions, chosen from a group defined in detail in the Description of the Invention below as photostable UV filter combination in cosmetic and pharmaceutical preparations for protecting the human epidermis or human hair against UV radiation, specifically in the range from 320 to 400 nm.