Sun screen agents

US6280712A · kind A · utility

Assignee

• Cognis Deutschland GmbH · DE

Inventors

• Achim Ansmann · Erkrath, DE
• Helga Gondek · Goldkronach, DE
• Rolf Kawa · Monheim, DE
• Holger Tesmann · Düsseldorf, DE

Key dates

• Filing date: May 24, 2000
• Grant date: Aug 28, 2001
• Expiry date: May 24, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A process for enhancing the effectiveness of a sunscreen lotion containing at least one ultraviolet filter involving solubilizing/dispersing the ultraviolet filter in a dialkyl/alkenyl carbonate.