alkoxysubstituierte maleinsaeureimide and maleinsaeureanhydride, processes for their manufacture and their use.

摘要

The invention relates to novel alkoxy substituted maleimides of the formula IMAGE I where R1 is hydrogen, C1-C8-alkyl, C2-C8-alkenyl, phenyl or phenylalkyl, and the organic radicals may furthermore carry inert substituents, and R2 and R3 are each C1-C4-alkyl, C2-C4-alkenyl, C1-C4-haloalkyl or C2-C4-haloalkenyl, and alkoxy-substituted maleic anhydrides of the formula II IMAGE II where R2 is C1-C4-alkyl, C2-C4-alkenyl, C1-C4-haloalkyl or C2-C4-haloalkenyl and Z is hydrogen, halogen or a radical OR3, where R3 is C1-C4-alkyl, C2-C4-alkenyl, C1-C4-haloalkyl or C2-C4-haloalkenyl. The invention further relates to processes for preparing such maleimides I and the corresponding maleic anhydrides II and their use as graft monomers in graft polymers based on polyphenylene ethers.