申请人:BASF Aktiengesellschaft
公开号:US04877887A1
公开(公告)日:1989-10-31
The invention relates to novel alkoxy substituted maleimides of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, phenyl or phenylalkyl, and the organic radicals may furthermore carry inert substituents, and R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl, and alkoxy-substituted maleic anhydrides of the formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl and Z is hydrogen, halogen or a radical OR.sup.3, where R.sup.3 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -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.
本发明涉及新型烷氧基取代马来酰亚胺,其化学式为##STR1##
其中R1为氢、C1-C8烷基、C2-C8烯基、苯基或苯基烷基,有机基团还可以带有惰性取代基,R2和R3分别为C1-C4烷基、C2-C4烯基、C1-C4卤代烷基或C2-C4卤代烯基,以及化学式II的烷氧基取代马来酸酐##STR2##
其中R2为C1-C4烷基、C2-C4烯基、C1-C4卤代烷基或C2-C4卤代烯基,Z为氢、卤素或基团OR3,其中R3为C1-C4烷基、C2-C4烯基、C1-C4卤代烷基或C2-C4卤代烯基。本发明还涉及制备这样的马来酰亚胺I和相应的马来酸酐II的方法,以及它们作为基于聚苯醚的接枝聚合物中的接枝单体的用途。