METHOD FOR PRODUCING ALICYCLIC TETRACARBOXYLIC ACID DIANHYDRIDE
PROBLEM TO BE SOLVED: To provide a method for industrially advantageously producing a bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride derivative usable as a raw material monomer for a polyimide resin.SOLUTION: A bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride derivative u...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method for industrially advantageously producing a bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride derivative usable as a raw material monomer for a polyimide resin.SOLUTION: A bicyclo[4.2.0]octane-3,4,7,8-tetracarboxylic acid dianhydride derivative useful as a raw material monomer for a polyimide resin is produced by subjecting a maleic anhydride derivative and a 4-cyclohexene-1,2-dicarboxylic acid anhydride derivative to photoaddition reaction in a 2-10C aliphatic carboxylic acid ester solvent or a 3-7C carbonic acid ester solvent. |
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