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 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 through C13 and by specifying the linearity of the alcohol main chain. 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 paper will introduce a C10 phthalate produced from butene rather than the current route from propylene.