Treatment of contact lenses with an aqueous solution including s

Cleaning and liquid contact with solids – Processes – Miscellaneous

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134901, 510112, 514839, A61L 200

Patent

active

057655790

ABSTRACT:
The present invention provides methods for treating contact lenses and compositions for the same. The present invention includes contacting a lens with an aqueous solution comprising a sulfobetaine compound represented by the formula: ##STR1## wherein: R.sub.1 is an alkyl group having from 8 to 30 carbon atoms, R.sub.2 and R.sub.3 are individually hydrogen or alkyl groups having from 1 to 4 carbon atoms, and R.sub.4 is an alkyl group having from 2 to 6 carbon atoms. In preferred embodiments of the invention, the subject compounds are used in combination with antimicrobial agents for providing simultaneous disinfection and cleaning of contact lenses.

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patent: 5096607 (1992-03-01), Mowrey-McKee
Meucci, V.P. et al "Solubilization Reagent for Biological Test Samples for Immunoassays" Chemical Abstracts, vol. 116 (1992) abstract No. 210753n.
Rabilloud, T. et al "Amidosulfobetaines, a family of detergents with improved solubilization properties: application for isoelectric focusing under denaturing conditions" Chemical Abstracts, vol. 112, (1990) abstract No. 154543x.
Toxicol. In Vitro (1995), 9(2), 185-90 Coden:Tivieq;ISSN: 0887-2333, 1995, XP000675837, Vivian, L. et al: "Comparision of Three In Vitro Cytotoxicity Assays for Estimating Surfactant Ocular Irritation" see column 2, line 12-column 2, line 30; tables 1,4.

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