Molded structure comprising a thermoplastic, process for its pro

Details Molded structure comprising a thermoplastic, process for its pro Molded structure comprising a thermoplastic, process for its pro

1995-10-27

1997-04-08

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 62, 521 63, 521 64, 521 79, 521 80, 521 81, 521 82, 521142, 521143, 521146, 521149, 521150, C08J 918

Patent

active

056188536

ABSTRACT:
A molded structure 1 produced by extrusion, such as an expanded plastic foam, a sheet, a profile or the like, contains at least 10% by volume of open cells 2, 4 which have a polyhedron-like shape and are adjacent to one another. A higher temperature during the extrusion in comparison with the extrusion of thermoplastic molded structures having a closed-cell structure results in deformation-free opening of the cells. Webs 3 of cell walls 5, 6 remain intact in shape whether they have orifices 7 or no passages, so that the mechanical strength of the cell skeleton or of the space matrix is retained.

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