Quaternary ammonium group-containing polymers having antimicrobial activity
AssigneeDynapol
InventorsBernard G. Sheldon, Robert E. Wingard, Jr., Ned M. Weinshenker, Daniel J. Dawson
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Abstract
Polymeric quaternary ammonium compounds having recurring vinylbenzyl ammonium units are disclosed. The quaternary ammonium units preferably have 2 alkyl substituents of 1 to 4 carbons and 1 alkyl substituent of 4 to 12 carbons. These materials have antimicrobial properties and are particularly useful for preserving ophthalmic solutions.
Claims4
A method of inhibiting bacterial growth comprising applying to said bacteria an effective bacteria growth inhibiting amount of an antibacterial composition comprising an effective antibacterial concentration of a polymeric quaternary ammonium compound having at least about 10 recurring structural units of the formula:
- ##STR13## wherein R is a 4 to 12 atom alkyl, X.sup.- is a physiologically acceptable halide anion and R' and R" are independently selected from the group of alkyls of from 1 to 4 carbon atoms, in a hygienically acceptable carrier.
Dependencies are inferred from the claim text.