Solution process for the preparation of polyimides from diamines

Details Solution process for the preparation of polyimides from diamines Solution process for the preparation of polyimides from diamines

1974-07-15

1976-12-07

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 37N, 260 42, 260 4218, 260 47CZ, 260 47UA, 428474, C08G 6926

Patent

active

039962032

ABSTRACT:
Novel polyimide prepolymers with improved mold flow characteristics and enhanced physical properties when thermoset, are provided by heating a difunctional amine and an anhydride of an unsaturated dicarboxylic acid in a solvent at a temperature not in excess of 75.degree. C. until all of the amine groups are reacted, then, without isolating the reaction product, heating it with more difunctional amine in a solvent at a temperature not in excess of 75.degree. C. until formation of a prepolymer is substantially complete.

REFERENCES:
patent: 2306918 (1942-12-01), Weiss et al.
patent: 2818405 (1957-12-01), Kovacic
patent: 3562223 (1971-02-01), Bargain et al.
patent: 3658764 (1972-04-01), Bargain et al.
patent: 3669930 (1972-06-01), Asahara et al.
patent: 3678015 (1972-07-01), Holub et al.
patent: 3732188 (1973-05-01), Holub et al.
patent: 3732189 (1973-05-01), Crivello et al.
patent: 3740378 (1973-06-01), Crivello

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