Stabilized, antimicrobially effective composition with a content of bispyridinium alkane

US8609697B2 · kind B2 · utility

Assignee

• Air Liquide Santé (International) · FR

Inventors

• Wolfgang Beilfuss · Hamburg, DE
• Andreas Dettmann · Hamburg, DE
• Sabine Behrends · Appen, DE
• Mona Golombiewski · Lüneburg, DE
• Thomas Spuida · Norderstedt, DE
• Elke Kassens · Bad Oldesloe, DE

Key dates

• Filing date: Feb 18, 2009
• Grant date: Dec 17, 2013
• Expiry date: Jul 1, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q17/005
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An aqueous-based composition which includes a) at least one bispyridinium alkane (for example octenidine) and b) at least one stabilizer selected from antioxidants, complexing agents, reducing agents, UV filters and photoprotective agents, in particular α-tocopherol, and BHT. The composition can also include c) one or more auxiliaries selected from, for example, nonionic surfactants, ethers, solvents and polymers, in particular fatty alcohol alkoxylates and alkoxylated fatty acid monoglycerides. The presence of the stabilizer reduces or prevents the appearance of decomposition products of bispyridinium alkanes and, in the case of the presence of auxiliaries, of decomposition products of the auxiliaries, such as ethers and peroxides.