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

1994-11-29

1995-07-18

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 50, 264 51, 264 54, 521 79, 521 81, C08J 912, C08J 914

Patent

active

054341957

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: 3367891 (1965-12-01), Ingram
patent: 3486946 (1966-10-01), Duddy
patent: 3753932 (1973-08-01), Jenkins
patent: 4020025 (1977-04-01), Zeitler et al.
patent: 4041115 (1977-08-01), Jenkins et al.
patent: 4079170 (1978-03-01), Cluff
patent: 4966919 (1990-10-01), Williams, Jr. et al.
patent: 5037859 (1991-08-01), Williams, Jr. et al.

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