Re: PET foaming

DuPont made a product called Pneumocel (sic). It was used as carpet
underlay. Made by spinning/extruding PET with methylene chloride and
foam was post inflated or stabilized with a fluorocarbon gas to keep
inflated. Old technology should be available in US patent dB over 40
years ago.

Frank

paci.andrea@xxxxxxxxx wrote:
I'm starting to work on a new project about PET foaming.....can someone
help me in this interesting "adventure"?

Is it possible to foam PET? Do you know any supplier that has already
developed a line for this application? Any particular PET grade is to
be used?

Thanks

Andrea

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