Polymeric quaternium compounds
First Claim
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1. A contact lens care solution comprising 0.5 ppm to 30 ppm of a polymer of general formula I
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Abstract
A topical pharmaceutical composition comprising a pharmaceutical active and a polymer of general formula I or general formula II
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- wherein Ck is a saturated or unsaturated, five, six or seven-membered ring;
- R is a C1-C3alkyl; n is 1, 2, 3, 4 or 5 and m provides a number average molecular weight of the polymer of from 2000 to 80,000.
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Citations
10 Claims
- 1. A contact lens care solution comprising 0.5 ppm to 30 ppm of a polymer of general formula I
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7. The lens care solution of 5 wherein the number average molecular weight of the polymer of formula I is from 4000 to 24,000.
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8. The lens care solution of 5 wherein the polymer of formula I is present in the composition at a concentration of 0.5 ppm to 10 ppm.
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9. The lens care solution of 5 wherein the solution satisfies primary biocidal kill in that for a recommended disinfection period the number of bacteria recovered per mL is reduced by a mean value of not less than 3.0 logs, and the number of mold and yeast recovered per mL is reduced by a mean value of not less than 1.0 log within the recommended disinfection period.
Specification