Di(2-propylheptyl)Phthalate:A New Plasticizer Choice for PVC Compounders

摘要

Science and practice have proven that phthalic acid esters are among the most functional plasticizers for polyvinyl chloride(PVC).The performance properties of phthalic acid esters can be modified for an advantageous cost/benefit position by varying the alcohol moiety of the ester molecule in the practical range of C4-C13 and by specifying the linearity of the alcohol main chain.The C8,C9,and C10 alcohols produce esters of most value as PVC plasticizers.Most plasticizer alcohols are produced by the oxonation process from primary olefins,of which ethylene,propylene,and butene are the major refinery products available on a world scale at costs acceptable to the application.This article introduces a C10 phthalate produced from butene rather than by the current route from propylene.