Patent ID: 8173750
Filing Date: 2012-05-08
Classification: A61K,A61Q,C08F,C08G,C08J

Abstract:
1. A star macromolecule represented by Formula X: wherein: Core represents a crosslinked polymeric segment; P1 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophobic monomers; P2 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophilic monomers; P3 represents a homopolymeric segment comprised of repeat units of monomeric residues of polymerized hydrophilic monomers; q1 represents the number of repeat units in P1 and has a value between 1 and 50; q2 represents the number of repeat units in P2 and has a value between 30 and 500; q3 represents the number of repeat units in P3 and has a value between 30 and 500; r represents the number of homopolymeric arms covalently attached to the Core; t represents the number of copolymeric arms covalently attached to the Core; and wherein the molar ratio of r to t is in the range of between 20:1 and 2:1.