PLASTICIZER FOR POLAR CAOUTCHOUC-BASED RUBBER Russian patent published in 2005 - IPC

FIELD: rubber industry.

SUBSTANCE: plasticizer is prepared from alcohol production waste (65.79%), phthalic anhydride (32.89%) and tetrabutoxy titanate catalyst (1.32%), said alcohol production waste being, in particular, mixture of ethyl, isobutyl, and isoamyl alcohols resulted from preliminary distillation of ethanol production waste. Invention widens assortment of plasticizers, improves environmental conditions, diminishes consumption of hard-accessible and much more expensive ester plasticizer dibutyl phthalate, limits washing-out of plasticizer from vulcanizate based on polar caoutchoucs, and reduces swelling thereof.

EFFECT: improved performance characteristics of plasticizer and reduced expenses.

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