Tetracarboxylic acid or polyesterimide thereof, and process for production of the same
AssigneeMitsubishi Chemical Corporation
InventorsMasatoshi Hasegawa, Haruhiko Kusaka, Jun Enda
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Abstract
The present invention provides a useful and novel alicyclic polyesterimide. An alicyclic polyesterimide produced by imidation of an alicyclic polyesterimide precursor is found to be a useful material in industrial fields, the alicyclic polyesterimide precursor being obtained by reacting an alicyclic tetracarboxylic anhydride having an ester group or a class of tetracarboxylic acid thereof as a starting material with an amine.
Claims11
An alicyclic tetracarboxylic anhydride having an ester group or a class of tetracarboxylic acid thereof, which is represented by any of the following general formulae (1) to (3):
- wherein in the above formulae (1) to (3), A represents a divalent group and X1, X2, X3, X4, X5, and X6 each independently represents a hydrogen atom, a halogen atom, a nitrile group, a nitro group, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an amino group, or an amide group.
An alicyclic polyesterimide precursor containing a constitutional unit represented by the following general formula (4):
- wherein in the above formula (4), A represents a divalent group;
- X1, X2, X3, X4, X5, and X6 each independently represents a hydrogen atom, a halogen atom, a nitrile group, a nitro group, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an amino group, or an amide group;
- B represents a divalent aromatic or aliphatic group;
- and R represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or a silyl group.
An alicyclic polyesterimide containing a constitutional unit represented by the general formula (5):
- wherein in the above formula (5), A represents a divalent group;
- X1, X2, X3, X4, X5, and X6 each independently represents a hydrogen atom, a halogen atom, a nitrile group, a nitro group, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an amino group, or an amide group;
- and B represents a divalent aromatic or aliphatic group.
Dependencies are inferred from the claim text.