Patent US4500441A successfully refreshed from Google Patents.
US4500441A
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Contact lens cleaning and storage composition
Assignee: Menicon Co Ltd
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Filing: 1984-03-09
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Granted: 1985-02-19
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Expires: 2004-03-09
Abstract
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.
Inventors
- 👤 Kyoichi Tanaka
- 👤 Akira Tsuzuki
- 👤 Shunichi Hioki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:16
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/83; A; A61; A61L; A61L12/00; A61L12/08; A61L12/14; A61L12/147; C11D3/00; C11D3/0005; C11D3/0078; C11D1/02; C11D1/12; C11D1/14; C11D1/143; C11D1/146; C11D1/22; C11D1/28; C11D1/38; C11D1/52; C11D1/523; C11D1/667; C11D1/72
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
267 words
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.
Claim 2
Dependent Claim
267 words
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.
Claim 3
Dependent Claim
39 words
The solution of claim 1, wherein said anionic surface active agent is a member selected from the group consisting of a sodium alkylbenzene sulfonate, a sodium α-olefin sulfonate, a sodium polyoxyethylene alkylether sulfate and a sodium polyoxyethylene alkylphenylether sulfate.
Claim 4
Dependent Claim
39 words
The solution of claim 1, wherein said non-ionic surface active agent is a member selected from the group consisting of a polyglycerin fatty acid ester, a polyoxyethylene fatty acid ester, a polyoxyethylene alkyl ether and a polyoxyethylene alkylphenyl ether.
Claim 5
Dependent Claim
170 words
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 α-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.
Claim 6
Dependent Claim
170 words
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 α-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.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |