Patent ID: 6478881
Filing Date: 2002-11-12
Classification: C11D,Y10S

Abstract:
An aqueous contact lens cleaning composition comprising:a water soluble polymer having a molecular weight greater than 1000 daltons and including a plurality of carboxylate groups in one of an acid form and a salt form; an amphoteric surfactant; a non-ionic surfactant; a buffering agent; an anti-microbial agent; water; and wherein the cleaning composition has a pH of from about 6 to about 8 and a viscosity from about 10 to about 200 cps, wherein: the water soluble polymer is one of carboxymethyl cellulose and polyacrylic acid; the amphoteric surfactant is cocoamidopropyl betaine; the non-ionic surfactant is polyoxyethylene (10) isooctylphenyl ether; the buffering agent is a mixture of boric acid and sodium borate; and the anti-microbial agent is a mixture of methylparaben and disodium edetate.