Household Care: Latest U.S. patents reviews

 

Concentrated Floor Cleaner (US Patent No. 8,895,491 B2)

Ecolab USA Inc. has patented a method of cleaning floors that entails forming a solution by mixing water and a concentrated acidic cleaner. The cleaner is comprised of an acid selected from the group consisting of citric, isocitric, tartaric, malic, monohydroxyacetic, acetic, gluconic and salts and mixtures thereof; a buffering salt; a surfactant; amine; and caustic. 

 

Aerosol Bathroom Cleaner (US Patent No. 8,927,479 B2)

The Clorox Company has been awarded US patent coverage for a hard surface aerosol cleaning composition with improved bathroom soil removal. The composition, which develops a foam upon being dispensed, consists of a nonionic surfactant; a cationic surfactant; a water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25°C; a chelating agent; a propellant, wherein 30% to 100% by weight of the propellant is n-butane; and water. Optionally, it can also contain one or more of the following adjuncts selected from the group consisting of: builders, buffers, fragrances, perfumes, thickeners, dyes, colorants, pigments, foaming stabilizers, water-insoluble organic solvents, corrosion inhibitors, hydrotropes, and mixtures thereof.  

 

Microcapsule with Detergent (US Patent No. 8,901,064 B2)

Henkel AG & Co. KGaA, Düsseldorf, has patented a washing or cleaning agent. It is comprised of at least one component selected from the group consisting of surfactants and builders; and microcapsules having capsule walls consisting of resin made from one component selected from the group consisting of aromatic alcohols and aromatic ethers; at least one aldehydic component that comprises at least two carbon atoms per molecule, and at least one meth(acrylate) polymer, wherein the (meth)acrylate polymer is selected from the group consisting of homopolymers and copolymers of polar-functionalized (meth) acrylate monomers.  

 

Spray Drying Process for Detergent Powder (US Patent No. 8,901,065 B2)

The Procter & Gamble Company has patented a process for preparing a spray-dried detergent powder. The process entails detersive surfactant and other detergent ingredients. Steps include: forming an aqueous detergent slurry in a mixer; transferring the aqueous detergent slurry from the mixer to a pipe leading through a first pump and then through a second pump to a spray nozzle; contacting a liquid detergent ingredient having a viscosity of less than about 2 Pa·s to the aqueous detergent slurry in the pipe after the first pump and before the second pump to form a mixture; spraying the mixture through the spray nozzle into a spray-drying tower; and spray-drying the mixture to form a spray-dried powder.