Contact lens cleaning and storage composition
AssigneeToyo Contact Lens Co., Ltd.
InventorsKyoichi Tanaka, Akira Tsuzuki, Shunichi Hioki
Life of this patent
Estimating the term…
Abstract
A cleaning and storage composition for contact lens comprising an anionic surface active agent and a non-ionic surface active agent. The composition has synergistically increased cleaning effect and safety to eye tissue by the combination use of anionic and non-ionic surface active agents, and it is suitable for use in storing contact lenses as well as cleaning the lenses.
Claims4
An aqueous water-nonabsorptive contact lens cleaning and storage solution consisting essentially of (1) an anionic surface active agent, (2) a non-ionic surface active agent, and (3) a compound selected from the group consisting of polysaccharides and derivatives thereof, the ratio of the component (1) to the component (2) being from about 32:68 to about 94:6 by weight, the total concentration of the components (1) and (2) being from about 0.05 to about 4.5% by weight, the concentration of the component (3) being from 0.01 to 10% by weight, and said solution having a pH of 4.8 to 8.5,
- wherein the anionic surface active agent is selected from the group consisting of a sodium alkylbenzene sulfonate, a sodium alpha-olefin sulfonate, a sodium polyoxyethylene alkylether sulfates, a sodium alkyloylmethyltaurinate, a sodium alkyloylsarcosinate, a sodium polyoxyethylene alkylether phosphate, a sodium di(polyexythylene alkylether)phosphate, and a sodium polyoxyethylene alkylphenylether sulfate;
- and
- wherein the non-ionic surface active agent is selected from the group consisting of a polyoxyethylene higher fatty acid ester, a higher fatty acid ester with a polyoxyalkylene-polyoxyethylene copolymer;
- a higher fatty acid ester with a polyhydric alcohol;
- a higher fatty acid ester with a polyoxyethylene polyhydric alcohol including polyoxyethylene glyceryl fatty acid esters and polyoxyethylene sorbitan fatty acid esters;
- a polyglycerin fatty acid ester;
- a polyoxyethylene alkyl ether;
- a polyglycerin ether with an alcohol;
- a polyoxyethylene fatty acid amide;
- a polyoxyethylene alkylamine;
- a polyoxyethylene alkylphenyl ether;
- a condensate of polyoxyethylene alkylphenol ether with formaldehyde;
- a polyoxyethylenepolyoxypropylene block copolymer;
- a phosphate, a polyethyleneglycol adduct of one of a hydrogenated castor oil, castor oil and sterol;
- and a polyoxyethylene sorbian fatty acid ester.
An aqueous water-nonabsorptive contact lens cleaning and storage solution consisting essentially of (1) an anionic surface active agent, (2) a non-ionic surface active agent, and (3) a compound selected from the group consisting of polysaccharides and derivatives thereof, the ratio of the component (1) to the component (2) being from about 32:68 to about 94:6 by weight, the total concentration of the components (1) and (2) being from about 0.05 to about 4.5% by weight, the concentration of the component (3) being from about 0.1 to 10% by weight, and said solution having a pH of 4.8 to 8.5,
- wherein said anionic surface active agent is a member selected from the group consisting of sodium alkylbenzene sulfonate, a sodium .alpha.-olefin sulfonate, a sodium polyoxyethylene alkylether sulfate and a sodium polyoxyethylene alkylphenylether sulfate, and said non-ionic surface active agent is a member selected from the group consisting from the group consisting of a polyglycerin fatty acid ester, a polyoxyethylene fatty acid ester, a polyoxyethylene alkyl ether and a polyoxyethylene alkylphenyl ether.
Dependencies are inferred from the claim text.