POLYETHYLENE COMPOSITION FOR PRODUCTS WITH BACTERICIDAL PROPERTIES (VARIANTS) Russian patent published in 2008 - IPC C08L23/06 C08L23/04 C08K13/02 C08K3/26 C08K3/36 C08K5/20 

FIELD: biologically active polymer materials.

SUBSTANCE: invention relates to polyethylene compositions showing bactericidal activities and intended for manufacture of various products through molding and extrusion while being suitable for fabrication of nontoxic packing materials for foods and medical tools, for fabrication of medical- and sanitary-destination molding equipment, toys, furniture, plates and dishes, fibers, and textile articles. Composition according to invention comprises high-pressure polyethylene (71.00-99.04%) and bactericidal additive, the former containing 0.10 to 5.00% silver phosphate, silver thiosulfate, or silver stearate. Composition further contains 0.06 to 1.00% of oleic acid amide (Finawax O), 0.20-2.00% calcium carbonate (Omyacarb 2XKA), 0.50-20.00% ethylene/vinyl acetate copolymer, and 0.10-1.00% silica.

EFFECT: imparted high bactericidal activity extending functional qualities of composition allowing use thereof in various industry fields.

3 cl, 5 tbl, 4 ex