Disubstituted maleic anhydride compounds
AssigneeStandard Oil Company (Indiana)
InventorsEllis K. Fields, Mark L. Winzenburg, Steven J. Behrend
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Abstract
Di-substituted maleic anhydride compounds are disclosed of the structural formula ##STR1## wherein R and R.sup.1 are selected from the group consisting of aliphatic and phenyl moieties, and R.sup.2 is a divalent aromatic moiety. Polyamide-imide polymers, polyimide polymers and vinyl copolymers derived therefrom are also disclosed.
Claims3
A substituted phenanthrene anhydride compound of the structural formula ##STR40## wherein R.sup.4 and R.sup.5 are individually selected from the group consisting of --NH.sub.2 and --CH.dbd.CH.sub.2.
A substituted dibenzanthracene dianhydride compound of the structural formula ##STR41## wherein R.sup.4 and R.sup.5 are individually selected from the group consisting of hydrogen, alkyl moieties of 1 to 10 carbon atoms, phenyl moieties, naphthyl moieties, --NO.sub.2, --NHCOCH.sub.3, --NH.sub.2, --OCOCH.sub.3, --OH, --OCH.sub.3, --CH.dbd.CH.sub.2, --COOCH.sub.3 and --COOH.
A substituted dibenzanthracene dianhydride compound of the structural formula ##STR42## wherein R.sup.4 and R.sup.5 are individually selected from the group consisting of hydrogen, alkyl moieties of 1 to 5 carbon atoms, phenyl moieties, naphthyl moieties, --NO.sub.2, --NHCOCH.sub.3, --NH.sub.2, --OCOCH.sub.3, --OH, --OCH.sub.3, --CH.dbd.CH.sub.2, --COOCH.sub.3, and --COOH.
Dependencies are inferred from the claim text.