Novel compositions

Details Novel compositions Novel compositions

1976-07-19

1978-03-07

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37N, 260 37M, C08J 932

Patent

active

040779220

ABSTRACT:
Syntactic foams are described which consist of a spherical filler (microballoons, microspheres) embedded in a polyimide which is characterized by solubility in polar organic solvents and by thermoplasticity. These syntactic foams possess high structural strength, high resistance to deformation upon exposure to heat, and the ability to be subjected to further molding, e.g. for shaping and/or increase in density, if desired. These properties render the materials useful for a wide variety of structural and insulative applications e.g. in the preparation of mechanical parts and, using microballoons, lightweight, substantially non-burning, structural panels.

REFERENCES:
patent: 2978340 (1961-04-01), Veotch et al.
patent: 3708458 (1973-01-01), Alberino et al.
Rand, An Aromatic Polyimide Syntactic Foam, Journal of Cellulos Plastics, May 1973, pp. 130-133.

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