Anthony East,Alan Letton,Suseela Kanamathareddy,Bryant J. Pudil,Stephen Goodrich,Michael B. Hicks,Yun Choe
申请号：
US12500438
公开号：
US08232322B2
申请日:
2009.07.09
申请国别(地区):
US
年份:
2012
代理人:
摘要：
Anhydride polymers that release active or activatable agent(s) have pre-selected properties such as molecular weight, flexibility, hardness, adhesiveness, and other valuable properties. The polymers are suitable for use in compositions, formulations, coatings, devices, and the like that benefit from the controlled release of an agent(s) over a period of time. The polymers are prepared by a process involving various alternative and sequential steps that allow the design a priori of products with specific characteristics. The polymers are suitable as delivery systems, either by themselves, as compositions, formulations or devices.
