Patent ID: 7560421
Filing Date: 2009-07-14
Classification: A61L,C11D,Y10S

Abstract:
1. A method of disinfecting a contact lens comprising the steps of: preparing a disinfecting liquid comprising at least one metal phthalocyanine compound represented by the following formula (I) and hydrogen peroxide, wherein said at least one metal phthalocyanine compound is dissolved in an aqueous medium, wherein M is zinc, aluminium, copper, iron, nickel, cobalt, gallium, aluminium chloride or gallium chloride, and each of R 1 -R 8 is independently selected from a group consisting of a hydrogen atom, a halogen atom, a carboxyl group or an alkali metal or ammonium salt thereof, a sulfone group or an alkali metal or ammonium salt thereof, a quaternary ammonium group represented by the following formula (II), and an amine group represented by the following formula (III), wherein R 9 is an alkylene group having 2-6 carbon atoms or an oxyalkylene group having 2-6 carbon atoms, and each of R 10 -R 12 is independently selected from alkyl groups having 1-6 carbon atom(s), wherein each of R 13 and R 14 is independently selected from a group consisting of a hydrogen atom and —CO—A group in which A is an alkyl group having 7-17 carbon atoms, a vinyl group, 1-methylvinyl group, a methacryloyl group or an acryloyl group; immersing a non-water absorptive contact lens in said disinfecting liquid; and irradiating said disinfecting liquid in which said non-water absorptive contact lens is immersed with a light.