TRIMELLITATES ― VERSATILE PLASTICIZERS FOR THE VINYL COMPOUNDER

摘要

Since the introduction of Trimellitic Anhydride by Amoco Chemicals in the late 1960s trimellitates have found their place in applications requiring greater permanence than existing commercial phthalate plasticizers. Trimellitate plasticizers offer today's vinyl compounder a unique combination of properties not attainable with polymeric or other monomeric plasticizers. Phthalate plasticizers, long the workhorse of the industry, are efficient, process easily, impart good low temperature properties, and are well suited for general use. Unfortunately, the phthalates can be volatile and lack the permanence needed for high temperature applications. The polymerics, which have the permanence necessary for high temperature applications, are often inefficient, are difficult to process, have poor low temperature properties, and are expensive. Trimellitates fill this gap in performance for the flexible vinyl industry.