Extruded closed-cell polypropylene foam

Details Extruded closed-cell polypropylene foam Extruded closed-cell polypropylene foam

1994-06-04

1996-06-18

McCamish, Marion E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283144, 4283157, 4283193, 4283197, C08J 914

Patent

active

055275737

ABSTRACT:
A closed-cell polypropylene foam, with at least eighty percent closed cells and a foamability characteristic of less than about 1.8 is disclosed. Also disclosed are several methods for making such closed-cell polypropylene foams.

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