公开(公告)号：US09890245B2

公开(公告)日：2018-02-13

申请号：US15170909

申请日：2016-06-01

申请人： JENKEM TECHNOLOGY CO., LTD. (TIANJIN)

发明人： Junye Li ,  Meina Lin ,  Xiaomeng Chen

IPC分类号： C08G65/332 ,  C08G65/333

CPC分类号： C08G65/3322 ,  C08G65/332 ,  C08G65/33331 ,  C08G65/33334 ,  C08G65/33337 ,  C08G2650/30 ,  C08G2650/32

摘要： Disclosed are multi-arm polyethylene glycol derivatives having structure of formula I or formula VI. Compared with straight chain polyethylene glycol, multi-arm polyethylene glycol has a plurality of terminal groups, thus has a plurality of introducing points of functional groups and can support a plurality of reactive terminal groups, thereby enabling multi-arm polyethylene glycol to have more flexibility and wider range of application.