PLASTICISER FOR POLYVINYL CHLORIDE COMPOSITIONS

摘要

FIELD: chemistry. ^ SUBSTANCE: invention discloses a plasticiser which is a mixture of esters mainly containing 2-ethylhexyl ether of terephthalic acid obtained via esterification in the presence of a catalyst of preliminarily azeotropically dried technical hydrated terephthalic acid - terephthalic acid production wastes - with an alcoholic fraction extracted by distilling still bottoms of distilling 2-ethylhexanol at pressure of 10-20 mm Hg and vapour temperature of 145-185C. ^ EFFECT: obtained plasticiser has good PVC composition plasticising properties, wider range of raw material sources for producing plasticisers, which reduces the cost of plasticiser and enables recycling of production wastes. ^ 1 cl, 1 tbl