Making foamed plastic containing perfluorinated heterocyclic blowing agent

US5162384A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• John G. Owens · Woodbury, US
• Koen Focquet · Ekeren, BE
• Richard M. Flynn · Mahtomedi, US
• Rudolf J. Danis · Ekeren, BE

Key dates

• Filing date: Sep 13, 1991
• Grant date: Nov 10, 1992
• Expiry date: Sep 13, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J9/143
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A blowing agent emulsion comprising at least one low boiling, perfluorinated, N-aliphatic, cyclic 1,3-, or 1,4-aminoether blowing agent, a foamable polymerizable reaction mixture, and a fluorochemical surfactant, optionally, a silicone surfactant, and optionally, a catalyst; a foamed plastic, and a process for making thereof.