Polyamide foams, process to make them and applications thereof

Details Polyamide foams, process to make them and applications thereof Polyamide foams, process to make them and applications thereof

2011-08-09

2011-08-09

Zemel, Irina S (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

C521S183000, C521S189000

Reexamination Certificate

active

07994231

ABSTRACT:
Closed cell polyamide foams are prepared by subjecting a polyamide resin to inert gases at an elevated pressure and at a temperature above the softening point of the resin and reducing the pressure while the temperature is maintained above the softening point of the resin, resulting in expansion of the resin.

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