Patent ID: 9402908
Filing Date: 2016-08-02
CPC Classification: A01N,A61K,G01N

Claim Text:
1. A composition comprising: a) at least one copolymer comprising at least one hydrophilic segment and at least one hydrophobic segment, wherein said hydrophilic segment is a hydrophilic poly(2-oxazoline), and wherein said hydrophobic segment is a hydrophobic poly(2-oxazoline) and b) at least one hydrophobic compound and/or active agent, wherein said hydrophobic compound has a solubility of less than 1 mg/mL in water at a pH range between 4 and 10 at 20° C., wherein said hydrophilic segment is represented by the following structure of formula (I): wherein R A is a hydrocarbon group, optionally substituted with —OH, —SH, —COOH, —NR′ 2 , —COOR′, —CONR′, —CHO, with R′ representing H or C 1-3 alkyl, with R A being selected such that the repeating unit of formula (I) is hydrophilic and said hydrophobic segment is represented by the following structure of formula (II): wherein R B is a hydrocarbon group selected such that the repeating unit of formula (II) is more hydrophobic than the repeating unit of formula (I), wherein the hydrocarbon group R B is selected from the group consisting of butyl, pentyl, hexyl, and heptyl and n represents an integer of 5 or more.