Polyimide from bis-maleimide having azole ring
AssigneePetrochemie Danubia Gesellschaft m.b.H.
InventorHeinz Horacek
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Abstract
A diamine or bismaleimide of the general formula I ##STR1## in which R.sub.1 and R.sub.2 denote an H atom or together denote the group --OC--CH.dbd.CH--CO--, Y.sub.1 and Y.sub.2 independently of one another deonte O or S and Het denotes a thiazole, a thiadiazole or a 1-methyltriazole ring. The diamines and bismaleimides are used for the preparation of polyimides which are if appropriate reinforced with fibers and if appropriate incompletely hardened.
Claims6
A polymaleimide of a bismaleimide having the formula I ##STR3## in which R.sub.1 and R.sub.2 together denote the group --OC--CH.dbd.CH--CO--, Y.sub.1 and Y.sub.2 independently of one another denote O or S and Het denotes a thiazole, thiadiazole or 1-methyltriazole ring.
Dependencies are inferred from the claim text.