PLASTICIZER COMPOSITION FOR POLYVINYL CHLORIDE COMPOSITIONS Russian patent published in 2000 - IPC

FIELD: organic chemistry, polymers. SUBSTANCE: invention relates to plasticizer composition for polyvinyl chloride compositions that are used in finishing materials making. Invention describes the plasticizer composition containing mixture of derivatives of 1,3-dioxane: 1-(4-methyl-1,3-dioxane-4-yl)-8,8-dimethyl-3,5,7-trioxanonane, 1-(4,4-dimethyl-1,3-dioxane-5-yl)-6-(4-methyl-1,3-dioxane-4-yl)-2,4-dioxahexane, 1,7-bis-(4-methyl-1,3-dioxane-4-yl)-3,5-dioxaheptane, 1,9-bis-(4-methyl-1,3-dioxane-4-yl)-3,5,7-trioxanonane that has additionally 4-methyl-4-hydroxyethyl-1,3-dioxane at the following ratio of components, wt.-%: 1-(4-methyl-1,3-dioxane-4-yl)-8,8-dimethyl-3,5,7-trioxanonane 16-25; 1-(4,4-dimethyl-1,3-dioxane-5-yl)-6-(4-methyl-1,3-dioxane-4-yl)-2,4-dioxa-hexane 18-25; 1,7-bis-(4-methyl-1,3-dioxane-4-yl)-3,5-dioxa-pentane 40-60; 1,9-bis-(4-methyl-1,3-dioxane-4-yl)-3,5,7- -trioxanonane 2-10; 4-methyl-4-hydroxyethyl-1,3-dioxane 1-3 and has additionally vegetable oils at the ratio of derivatives of 1,3-dioxane and vegetable oils, mas. p. p.: indicated mixture of derivatives of 1,3-dioxane 90-95 and vegetable oils 5-10. This ensures to increase thermostability of materials based on polyvinyl chloride compositions by 1.5-fold and decrease their rigidity by 1.5-3-fold. EFFECT: increased thermostability, decreased rigidity of materials. 2 tbl