MOLDED DETERGENT AND A METHOD FOR MANUFACTURE THEREOF Russian patent published in 2007 - IPC C11D17/00 

FIELD: household chemical goods.

SUBSTANCE: cleaning agent contains 5 to 95% active detergent, 0 to 90% inorganic substance particles or other conventional components, while outside surfaces of agent are closed by protection coating in the form of film having thickness between 5 and 1000 μm and at least one side of cleaner is uncoated. Film is prepared from one or more materials with melting points above 30°C. Coating materials are essentially water-insoluble and water-resistant, are adhered to outside surface of cleaner, and are capable or being removed in time of use. These materials are selected from: (a) naturally occurring or modified natural polymers with water vapor permeability factors below 5000x10^-13 [cm³][cm]/[cm²]sec[Pa] and (b) synthetic polymers with water vapor permeability factors below 1000 x10^-13 [cm³][cm]/[cm²]sec[Pa], where cm³ relates to volume at 273.15K and pressure 1.013x10⁵ Pa. Advantageously, coating material is a polymer material capable of being polymerized or hardened under the action of heating, ultraviolet, and electron beam irradiation.

EFFECT: improved strength characteristics and imparted preservation of shape and integrity of cleaner in use time.

12 cl, 1 dwg, 5 tbl, 5 ex