Patent ID: 6359014
Filing Date: 2002-03-19
Classification: A61K,A61P,C08G

Abstract:
A method for treating a patient, comprising:administering to the patient with pathologic hydrophobic interactions in biological fluids a composition comprising a substantially pure polyoxypropylene/polyoxyethylene block copolymer composition, wherein said substantially pure polyoxypropylene/polyoxyethylene block copolymer composition is less toxic than a corresponding non-pure polyoxypropylene/polyoxyethylene block copolymer composition, said substantially pure polyoxypropylene/polyoxyethylene block copolymer composition containing block copolymers with each of the block copolymers having the following formula: HO(C2H4O)b(C3H6O)a(C2H4O)bH wherein a is an integer such that the molecular weight represented by the polyoxypropylene portion of the respective block copolymer is between 900 Daltons and 15,000 Daltons and b is an integer such that the molecular weight represented by the polyoxyethylene portion of the respective block copolymer constitutes between 5% and 95% of the respective block copolymer and the polydispersity value is less than approximately 1.07.