Saturated fluoroalkylamines and their derivatives, and mixtures thereof

US5648528A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gunter Prossel · Altötting, DE
• Wolfgang Knaup · Altötting, DE
• Frank Wehowsky · Niedernhausen, DE

Key dates

• Filing date: Jun 7, 1995
• Grant date: Jul 15, 1997
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C309/13
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New saturated fluoroalkylamines and carboxyalkylbetaines and alkylsulfobetaines derived therefrom, and mixtures containing the new fluoroalkylamines and mixtures containing the new fluorobetaines are described. The saturated fluoroalkylamines conform to the formula below ##STR1## in which n is an integer from 3 to 17 and R.sup.1 and R.sup.2 are C.sub.1 to C.sub.4 -alkyl, C.sub.1 to C.sub.4 -hydroxyalkyl or hydrogen, with the proviso that only one of the two substituents R.sup.1 and R.sup.2 is hydrogen. The carboxyalkylbetaines and sulfobetaines and the mixtures thereof are highly effective products for reducing the surface tension of water/air systems and the interfacial tension of water/hydrocarbon systems.