Disinfectant

US6939840B2 · kind B2 · utility

Assignee

• LONZA LTD · CH

Inventors

• Florian Lichtenberg · Grenzach, DE
• Michael Lützeler · Neubiberg, DE
• Volker Ranft · Murg, DE

Key dates

• Filing date: Sep 18, 2001
• Grant date: Sep 6, 2005
• Expiry date: Mar 8, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/48
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disinfectant compositions, containing (a) at least one amine and/or quaternary ammonium salt of the general formula (Ia) or (Ib): wherein R1 represents C6-18 alkyl, R2 represents benzyl or C6-18 alkyl, R3 represents C1-18 alkyl or —[CH2)2—O]nR6, where n=1-20, R4 and R5 independently of one another represent C1-4 alkyl, R6 represents hydrogen or optionally substituted phenyl and A− is a monovalent anion or the equivalent of a multivalent anion of an inorganic or organic acid; and (b) at least one alkanolamine of the general formula (II): wherein m and, if present, o and p independently of one another have the values 2 or 3 and x and y independently of one another have the values 0 or 1, or a corresponding salt. The mass ratio of the components in the formulas (I):(II) is between 20:1 and 1:20. The compositions are characterized by an excellent bactericidal and in particular fungicidal action even in small application concentrations and are suitable for use as both disinfectants and preservative agents.