Extruded, open-cell alkenyl aromatic polymer foam and process fo

Details Extruded, open-cell alkenyl aromatic polymer foam and process fo Extruded, open-cell alkenyl aromatic polymer foam and process fo

1994-06-23

1995-05-02

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 51, 264 53, 521 79, 521 81, 521 97, C08J 908

Patent

active

054116872

ABSTRACT:
Disclosed is an extruded, open-cell alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of about 30 to about 80 percent. The foam further has in minor dimension and cross-section of greater than 0.25 inches. The foam has a high heat distortion temperature, and is particularly useful in roofing applications. Further disclosed is a process for making the open-cell foam.

REFERENCES:
patent: 4020025 (1977-04-01), Zeitler et al.
patent: 4041115 (1977-08-01), Jenkins et al.

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