Patent ID: 7943565

Claim:
An acidic sanitizing and/or cleaning composition capable of being diluted to form an acidic sanitizing and/or cleaning use solution, the composition comprising: a) a quaternary antimicrobial system comprising at least one C 1 -C 4 hydroxyalkyl carboxylic acid or salt thereof, at least one C 5 -C 18 alkyl monocarboxylic acid having the general formula: R′″—COOH wherein R′″ is a straight or branched, saturated or unsaturated alkyl moiety having from about 5 to about 18 carbon atoms; or salt thereof, at least one dicarboxylic acid having the general formula: wherein R is a saturated or unsaturated hydrocarbon moiety having 2 carbon atoms; R′ is hydrogen, hydroxyl, a substituted or unsubstituted n-alkyl or n-alkenyl moiety having from about 1 to about 12 carbon atoms, where suitable substituents of R′ comprise thiol, methane thiol, amine, methoxy and aryl substituents and n′ and n″ each are an integer of from 0 to 4; and R″ represents hydrogen or hydroxyl; or salt or anhydride thereof; wherein the mono- and dicarboxylic acids are present in a weight ratio of between about 1:1 and about 1:20, at least one acid capable of yielding a pH of about ≦5.0 upon dilution of the composition to a use solution, b) at least one solubilizer; c) at least one diluent; and d) optionally at least one detergent.