SZENTE, LAJOS,SZEJTLI, JOZSEF,KIS, GYOERGY LAJOS,SCHOCH, CHRISTIAN
申请号：
CA2484100
公开号：
CA2484100C
申请日:
2003.04.17
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
The present invention relates to novel materials, particularly biomaterials,in form of a precipitate, comprising at least an anionic polymeric componentwhich is as such soluble in water and an amphiphilic ammonium-type component,which precipitate is obtainable by a process including the following steps:contacting the anionic polymeric component and an cylcodextrin component in anaqueous medium, and adding to the mixture obtained in step 1 said amphiphilicammonium-type component, wherein said components are present in amountseffective to form said precipitate, and preferably to correspondingprecipitates additionally comprising said cycxlodextrin component. Both typesof precipitates may optionally comprise one or more further components. Theprecipitates are particularly useful as controlled-release depot formulationssuitable for long-lasting delivery of said further components. The furthercomponents incorporated into the precipitates can be pharmaceutical compounds,pesticides, agrochemicals, colorants, diagnostics, enzymes, foodstuffs etc.
