Process for producing polyamide foam

Details Process for producing polyamide foam Process for producing polyamide foam

1975-05-12

1977-05-10

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 78L, C08J 902

Patent

active

040227197

ABSTRACT:
Methods of preparing polyamide foam comprising polymerizing and foaming a mixture of one or more specified lactams, a basic alkali metal lactam catalyst, an alkyl isocyanate activator and a foaming agent at a temperature above the melting point of the lactam, and below the melting point of the polyamide foam thus produced.

REFERENCES:
patent: 3236789 (1966-02-01), Fuller
patent: 3322696 (1967-05-01), Fisher et al.
patent: 3376237 (1968-04-01), Fuller
patent: 3382195 (1968-05-01), Gilch et al.
patent: 3454689 (1969-07-01), Garrison
patent: 3574146 (1971-04-01), Schnell et al.
patent: 3591533 (1971-02-01), Schnell
patent: 3645928 (1972-02-01), Wakamura et al.
patent: 3679613 (1922-07-01), Gilch et al.
patent: 3682847 (1972-08-01), Gilch et al.
patent: 3702313 (1972-11-01), Gilch et al.

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