Abstract: Cleaning and disinfectant compositions are provided particularly for use with hard surfaces. The compositions include hydrogen peroxide and an acid or salt thereof which is resistant to oxidation other than phosphorous based acids. Replacement of phosphorous based acids with acids of the invention results in improved hydrogen peroxide stability while maintaining or increasing the efficacy of cleaning and antimicrobial activity of the compositions. Typically, acids of the invention include substituted or unsubstituted carboxylic acids such as R4—C (R2) (R3) —R1—COOH. Inventive compositions may further include surfactants, a chelating agent or sequestrant, a water soluble or water dispersible solvent, corrosion inhibitors and other adjuvants well known to those skilled in the art. There are further provided methods of use and methods of preparing inventive compositions.

Abstract: A process for producing an alkali-soluble graft polymer is disclosed. The graft polymer has at least one main chain and a plurality of side chains attached thereto. The process comprises combining at least one vinylic monomer that is capable of forming free radicals, at least one ethylenically-unsaturated carboxylic acid monomer that is capable of addition-copolymerization with the vinylic monomer in the presence of the thus-formed free radicals, and cyclic ester molecules that are capable of ring-opening in the presence of the carboxylic acid monomer, to produce a polymerizable mixture. the polymerizable mixture to subjected to a preselected temperature and pressure for causing the monomers to free-radically addition-copolymerize to form the main chain while the cyclic ester molecules graft thereon, thereby forming the side chains of the graft polymer. The process is characterized in that the main-chain and side-chain formations of the graft polymer occur substantially simultaneously.