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US 5,849,932 AGranted
Bismaleimide compound and process for producing the same
AssigneeNippon Mektron, Ltd.
InventorLin-chiu Chiang
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Abstract
A novel bismaleimide compound having the following formula: ##STR1## is synthesized from 1,3-bis(aminomethyl)cyclohexane and maleic anhydride, and is readily soluble in a variety of ordinary low boiling point organic solvents.
Claims4
A process for producing a bismaleimide compound comprising:
- reacting 1,3-bis(aminomethyl)cyclohexane with maleic anhydride in methyl isobutyl ketone to form an intermediate reaction mixture containing bismaleamic acid as an intermediate reaction product;
- adding a basic catalyst and a dehydrating agent to the intermediate reaction mixture;
- and then
- conducting a cyclization reaction to produce a final reaction mixture containing a bismaleimide compound having the following formula:
- ##STR7##
2 more elements
Dependencies are inferred from the claim text.