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    • 4. 发明专利
    • A stabilised mixture based on polyvinyl chloride.
    • PL190399B1
    • 2005-12-30
    • PL32153297
    • 1997-08-08
    • INST PRZETWORSTWA TWORZYW SZTUZAKLADY AZOTOWE KEDZIERZYN SA
    • GORAUS JANINAMAJDIUK ELZBIETAWOJTOWICZ KRYSTYNAMASIARZ ANNA
    • C08K5/098C08L27/06
    • A stabilised composition based on softened and unsoftened polyvinyl chloride, containing stabilisers from the group of organic derivatives of tin-merkaptan-carboxyl-esters or calcium-zinc, and additives typical for such mixtures, namely flow modifiers and impact strength modifiers, softeners, lubricants, pigments and fillers in known amounts, which guarantee the required properties of the mixture, are obtained. It is characterised in that stabilisers are selected from the group of salts of alkaline metals and salts of alkaline earths of the first and second main groups of the third and fourth row of the periodic table and non-saturated dicarboxyl acids with the general formula MOOC-CH=CH-COOM, where M refers to cations of such metals as sodium, potassium, calcium and magnesium. The content of oxidable parts is between 65.27 and 75.12 percent by mass, with respect to the amount of dicarboxyl acid are used one at a time, in the amount of 1.0 to 3.0 mass units per 100 mass units of polyvinyl chloride, or in the amount of 0.4 to 2.0 mass units per 100 mass units of polyvinyl chloride in the mixture with stabilisers from the group of organic derivatives of tin-merkaptan-carboxyl-esters or the group of calcium-zinc stabilisers, which are also used in the amount of 0.4 to 2.0 mass parts per 100 mass parts of polyvinyl chloride. The total amount of the stabilising mixture amount to not more than 5 mass parts per 100 mass parts of polyvinyl chloride.