Zurutuza, Amaia,Halliday, Janet A.,Livingston, Mark,Tuominen, Jukka
申请号：
AU2007274119
公开号：
AU2007274119B2
申请日:
2007.06.27
申请国别(地区):
AU
年份:
2013
代理人:
摘要：
A linear polymer is obtained by reacting together a polyethylene glycol or polypropylene glycol； a PEG-PPG-PEG or PPG-PEG-PPG block copolymer； a difunctional amine or diol； and a diisocyanate. A controlled release composition comprises the polymer together with an active agent. Active agents of molecular weight 200 to 20,000 may be used.
