Moldings or sheets made from silica aerogels

Details Moldings or sheets made from silica aerogels Moldings or sheets made from silica aerogels

1993-01-14

1994-03-15

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

25231501, 2523156, 423338, 428241, 428244, 428255, 428280, 428281, 428283, 428297, 428323, 428331, B32B 516

Patent

active

052944808

ABSTRACT:
A molding based on supercritically dried silica aerogel parts in the form of spherical particles having a diameter of from 0.1 to 10 mm or sheet-like pieces having a thickness of from 2 to 30 mm and a diameter of from 1 to 5 cm, wherein the molding is produced by pressing at from 500.degree. to 1000.degree. C. and at from 0.5 to 10 bar, if necessary under a protective gas, such as nitrogen, without addition of binders.

REFERENCES:
patent: 2093454 (1937-09-01), Kistler
patent: 4327065 (1982-04-01), von Dardel et al.
patent: 4402927 (1983-09-01), Dardel et al.
patent: 4432956 (1984-02-01), Zarzycki et al.
patent: 4667417 (1987-05-01), Graser et al.

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