01.04.16
US Patent No. 9,163,200 B2; P&G has patented a liquid cleaning and/or cleansing composition that contains abrasive cleaning particles, water and surfactant. The abrasive cleaning particles have packing density between about 50kg/m3 and about 150kg/m3 and an HV Vickers hardness from about 3 to about 50 kg/mm2. The composition has a pH of 6.5 to 7.5. The abrasive particles are comprised of foamed polymeric material and the foamed polymeric material is selected from polyethylene, polypropylene, PVC, polycarbonate, melamine, urea, polyurethane, polystyrene, phenolic material, polyesters, polyamide and mixtures thereof.