TOMMI MARKKULA,JUHA ALA-SORVARI,HARRI JUKARAINEN,MATTI LEHTINEN,JARKKO RUOHONEN
申请号：
EEP200100257
公开号：
EE05528B1
申请日:
1999.10.26
申请国别(地区):
EE
年份:
2012
代理人:
摘要：
The invention relates to a siloxane-based elastomer intended for controlling the permeation of drugs, wherein the elastomer includes 3,3,3,-trifluoropropyl groups attached to the Si-atoms of the siloxane units. The invention relates also to a method for the preparation of a siloxane-based elastomer including 3,3,3,-trifluoropropyl substituents, where the elastomer is intended for controlling the permeation of drugs. In the method either i) a 3,3,3,-trifluoropropyl-substituted vinyl-functional polysiloxane component and a silicon hydride-functional crosslinking agent are crosslinked in the presence of a catalyst, or ii) a 3,3,3,-trifluoropropyl-substituted polysiloxane component is crosslinked in the presence of a peroxide catalyst.
