Polymeric Delivery Systems for Active Agents
A composition, comprising: (a) at least one copolymer comprising repeating units of formula (I) wherein RA is a hydrocarbon group, optionally substituted with -OH, -SH, -COOH, NR'2, -COOR', -CONR', -CHO, with R' representing H or C1-3 alkyl, and with RA being selected such that the repeating unit of formula (I) is hydrophilic; and repeating units of the formula (II), wherein RB is a hydrocarbon group optionally substituted with halogen, -OH, -SH, -COOH, - NR"2, -COOR", -CONR", -CHO, with R" representing H, alkyl or alkenyl, and with RB being selected such that the repeating unit of formula (II) is more hydrophobic than the repeating unit of formula (I); and (b) one or more active agent(s).
KABANOV ALEXANDER V [US]; JORDAN RAINER [DE]; LUXENHOFER ROBERT [DE]
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