| 摘要 |
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 mum 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 |
