申请人:ExxonMobil Chemical Patents Inc.
公开号:US10138257B2
公开(公告)日:2018-11-27
Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula:
wherein M is a Group 4 metal; each of X1 and X2 is a univalent group, such as halogen or benzyl; each of R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 is, independently, hydrogen, a substituted or unsubstituted C1-C40 hydrocarbyl radical, etc.; and R13 is a divalent C1-C20 hydrocarbyl radical or divalent substituted C1-C20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N1 and N2.
本发明公开了用于烯烃聚合生产聚烯烃的 Phosphasalen 过渡金属络合物。这些过渡金属络合物的化学式如下
其中 M 为第 4 族金属;X1 和 X2 各为一单价基团,如卤素或苄基;R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11 和 R12 各独立地为氢、取代或未取代的 C1-C40 羧基等;以及 R13 为二价 C1-C20 羧基或二价取代的 C1-C20 羧基,其部分包括连接基。R13 是二价 C1-C20 羧基或二价取代的 C1-C20 羧基,其部分包括连接 N1 和 N2 的由 2 至 18 个碳原子组成的连接骨架。