Cleaning compositions for solid surfaces – auxiliary compositions – With safety or indicator feature
Patent
1995-06-30
1997-12-30
Einsmann, Margaret
Cleaning compositions for solid surfaces, auxiliary compositions
With safety or indicator feature
510112, 510113, 510115, 510373, 2524081, C11D 718
Patent
active
057030243
ABSTRACT:
Compositions and methods useful for disinfecting a contact lens are disclosed. The present methods comprise contacting a contact lens with a liquid medium containing an effective amount of an oxidative disinfectant component at conditions to effectively disinfect the contact lens. The contacting occurs in the presence of a color indicator component which is soluble in the liquid medium and is adapted to provide a color indication of the presence of the oxidative disinfectant component in the liquid medium. The color indicator component comprises an effective amount of a transition metal component which is redox active, has an oxidized state of a first color and a reduced state of a different second color and a polyanionic component in an amount effective to inhibit the staining of the contact lens by the transition metal component.
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Dziabo Anthony J.
Park John Y.
Peng Lin
Allergan
Einsmann Margaret
Uxa Frank J.
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