Compressed, extruded, evacuated open-cell polymer foams and evac

Details Compressed, extruded, evacuated open-cell polymer foams and evac Compressed, extruded, evacuated open-cell polymer foams and evac

1997-03-31

1998-12-01

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 99, 521155, 521918, 521902, C08J 936, C08J 938

Patent

active

058440143

ABSTRACT:
Disclosed is a compressed, evacuated, open-cell polymer foam, the foam having an open cell content of about 70 percent or more prior to compression, the foam having a thickness of about 40 to about 90 percent of the initial thickness of the foam prior to compression, the foam having an absolute cell gas pressure of about 10 torr or less in its open cells, the foam having a density of about 16 to about 250 kilograms per cubic meter. Further disclosed is an evacuated insulation panel employing the foam.

REFERENCES:
patent: H1574 (1996-08-01), Motter et al.
patent: 3978266 (1976-08-01), Lock
patent: 3978855 (1976-09-01), McRea et al.
patent: 4454248 (1984-06-01), Pollack et al.
patent: 5032622 (1991-07-01), Herrington et al.
patent: 5260344 (1993-11-01), Ashida et al.

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