08.01.14
US Patent No. 8,729,005 B2; Reckitt & Colman (Overseas) Limited, Slough, Berkshire, Great Britain, has patented an aqueous liquid acidic hard surface cleaning composition that has a pH of 2-4. It is comprised of an organic acid constituent which consists solely of acetic acid; at least one nonionic surfactant derived from Guerbet alcohols; an organic solvent constituent which comprises at least one glycol ether solvent; a sequestering polymer constituent selected from the group consisting of polymethyl methacrylate-polyethylene glycol graft copolymers, and poly(acrylic acid/2-acrylamido-2-methyl propane sulfonic acid); 0-5% wt. of a cosurfactant constituent selected from the group consisting of nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; one or more constituents selected from the group consisting of coloring agents, fragrances and fragrance solubilizers, viscosity modifying agents thickeners, pH adjusting agents and pH buffers, optical brighteners, opacifying agents, hydrotropes, abrasives, and preservatives; and water. Water comprises at least 80% by weight of the composition and the acetic acid is the sole acid present in the composition.