Phthalic anhydride derivatives

Details Phthalic anhydride derivatives Phthalic anhydride derivatives

1982-03-08

1983-07-05

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

544318, 548318, 528271, 528350, C07D40106, C07D40306, C08G 6916

Patent

active

043917518

ABSTRACT:
Compounds are described which are characterized by the formula ##STR1## C.sub.n H.sub.2n =alkylene with 2 to 6 C atoms in the chain. R=inert substituent and m=0-3.
The compounds contain an anhydride group and a hetero ring capable of opening to yield an isocyanate group on heating. Accordingly, they can undergo self-condensation on heating to yield polyamide-imides. The compounds can also be polymerized by heating in the presence of difunctional monomers such as diols, diamines, alkanolamines and the like.

REFERENCES:
patent: 3428486 (1969-02-01), George
patent: 3817442 (1974-06-01), Kovacs et al.

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