Document Type and Number:
Japanese Patent JPS5440529
Kind Code:
B2
Abstract:
PURPOSE:To obtain the title compound useful as a substitute of pyromellitic acid which is a raw material of a plasticizer, polyamide and polyimide, in high yield by the electrolytic reduction dimerization of a maleic acid using a specific electrode.
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Application Number:
JP1360377A
Publication Date:
December 04, 1979
Filing Date:
February 10, 1977
Export Citation:
International Classes:
C07C55/24; C07C51/00; C07C67/00; C25B3/25; C25B3/29