Dichloropentafluoropropane-containing compositions for removing water from surfaces

US5102469A · kind A · utility

Assignee

• Kali-Chemie Aktiengesellschaft · DE

Inventors

• Hans Buchwald · Ronnenberg, DE
• Andreas Brackmann · Hannover, DE
• Boleslaus Raszkowski · Wiedensahl, DE

Key dates

• Filing date: Feb 27, 1991
• Grant date: Apr 7, 1992
• Expiry date: Feb 27, 2011

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B5/005
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compositions are described based on hydrogen-containing fluorochlorohydrocarbons selected from the dichloropentafluoropropanes which contain defined amounts of specific surface-active substances selected from the group consisting of straight-chain alkylamines having 9 to 12 carbon atoms, straight chain carboxylic acids having 9 to 12 carbons atoms, branched alkylamines having 8 to 12 carbon atoms, branched carboxylic acids having 8 to 12 carbon atoms, alkyl phosphates, aryl phosphates, mixed alkyl/aryl phosphates, salts of the foregoing alkylamines with the foregoing carboxylic acids, and salts of straight-chain or branched C8- to C12-alkylamines with alkyl, aryl or mixed alkyl/aryl mono- or diesters of phosphoric acid. A process for using these compositions to remove water from surfaces of a wide variety of articles and from a wide variety of materials is also described.