Production of foam webs from high-temperature-resistant polysulfones or polyether sulfones

The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a mixture of water with an inert gas or organic liquid, e.g. an alcohol or a ketone.

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Bibliographische Detailangaben
Hauptverfasser: EHRMANN GERD, KRATZMUELLER WOLFGANG, SCHERZER DIETRICH, RUECK SWEN, QUEISSER JOACHIM, DIETZEN FRANZ-JOSEF
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a mixture of water with an inert gas or organic liquid, e.g. an alcohol or a ketone.