Patent ID: 8865143
Filing Date: 2014-10-21
Classification: A01N,A61K,A61P,A61Q,C08G,C08J,C08L

Abstract:
1. A reversely thermo-reversible hydrogel, having a transparent gel form in the temperature range of from about 4-45° C., and a gel-sol transition temperature greater than 45° C., comprising: (a) A water soluble block copolymer comprising at least two blocks of polyethylene oxide and at least one block of polypropylene oxide, wherein the water soluble block copolymer is a tri-block copolymer having the general formula of HO-(EO) (b) At least one associative gelling adjuvant having a water solubility of less than 0.5 g/100 ml being capable of forming water soluble inter-molecular complexes with said water soluble block copolymers in water; and (c) Water.