Method for drying foams

Details Method for drying foams Method for drying foams

1992-08-10

1993-03-02

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521181, 521918, C08J 940, C08J 942

Patent

active

051909871

ABSTRACT:
A method for drying foams, and in particular inorganic and organic aerogels, so that intricate internal pore/cell structure is maintained utilizing a select group of fluorocarbon solvents. Replacement of precursor diluents with a fluorocarbon solvent, followed by direct sublimation, is employed to dry the foam in place of critical point drying.

REFERENCES:
patent: 4735794 (1988-04-01), Parkinson
J. D. LeMay et al., pp. 19-45, 15 (No. 12) (1990), Mater. Res. Soc. Bul.
"R. W. Pekala et al." Thermal Conductivity of Monolithic Organic Aerogels, pp. 971-972 Feb. 21, 1992 Science.
"R. W. Pekala" pp. 3221-3225, 24, 1989, J. Mater. Sci.

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