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    • 74. 发明专利
    • Sealing mixture.
    • PL171464B1
    • 1997-05-30
    • PL30101693
    • 1993-11-09
    • INST CIEZKIEJ SYNTEZY ORGA
    • RUBAJ MARIAUHNIAT MARIAJOHN ROMANWASILEWSKI JERZYJARAWKA MAREKSOLECKA JANINA
    • C09K3/10
    • 1. The sealing mixture contains petrochemical products and/or synthetic hydrocarbons, builders and, possibly, modifiers, stabilizers and antioxidants. Characterized in that: They consists of: 45-99 parts by weight of liquid petrochemical products with the kinematic viscosity of 3-50 mm2>/s at the temperature of 100 degrees C, containing 0 - 8 percent of aromatic carbons, 24 - 52 percent of oil carbons and 47 - 76 percent paraffin carbons in a molecule; and/or 30-99 parts by weight of synthetic hydrocarbons of polyalphaolefine oils with the kinematic viscosity of 5-40 mm2>/s at the temperature of 100 degrees C, and the solidification point within the range between -20 degrees C and -70 degrees C; or, possibly, 5-15 parts by weight of solid petrochemical products - residual after the oil distillation process, which removed asphalt and paraffins from oil - containing 7-17 CH3 gropus per 100 carbon atoms, with the kinematic viscosity of 16-24 mm2/s at 100 degrees C. They also contain: 0.5-15 parts by weight of inorganic fillers with the BET surface of up to 400 m2>/g, powdered to the grain size of 1x103> μm - 0.5 μm, or the stabilizing compound, consisting of 0.05-0.3 parts by weight of an antioxidant of the phenylo-tert-buyl type and 0.01-0.35 parts by weight of an aminic stabilizer, containing the animo group in the neighbourhood of up to 2 coal atoms with respect to the carbonyl bond, or the imide group or secondary aminic derivatives of diphenylamine, or possibly, 1-35 parts by weight of polymer-type modifiers.