Process for preparing amideimide polymers in the presence of alcoholic solvent
AssigneeStandard Oil Company (Indiana)
InventorsRobert G. Keske, James R. Stephens
Life of this patent
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Abstract
Process of producing an amideimide polymer without using an acid having an acyl halide group which comprises reacting a composition comprising an aromatic diprimary amine and a tricarboxylic acid compound in an alcoholic solvent comprising an alkanol containing from 4 to 10 carbon atoms. In those cases where only diprimary aromatic amine is reacted, a tertiary amine is required. If desired, a glycol can be present.
Claims13
The process of producing an amideimide polymer without using an acid having an acyl halide group, which comprises reacting a composition comprising an aromatic diprimary amine and a tricarboxylic acid compound selected from the group consisting of trimellitic acid and trimellitic anhydride in an alcoholic solvent containing a tertiary amine wherein said alcoholic solvent comprises an alkanol containing from 4 to 10 carbon atoms.
The process of producing an amideimide polymer without using an acid containing an acyl halide group which comprises reacting a composition comprising an aromatic diprimary amine, an aliphatic polymethylene diprimary amine containing from 3 to 12 methylene units and a tricarboxylic acid compound selected from the group consisting of trimellitic acid and trimellitic anhydride in an alcoholic solvent comprising an alkanol containing 4 to 10 carbon atoms wherein the aliphatic diprimary amine comprises from about 10 to 90 weight percent of the diprimary amines.
Dependencies are inferred from the claim text.