MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202647075760 A) filed by Sabic Global Technologies B. V. on June 18, 2026, for Method For The Manufacture Of Polycarbonate Resin.
Inventors include Dhar, Dwairath; Bojarski, Aaron David; and Del Agua Hernandez, David.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: The present invention relates to a method for preparing an end-capped polycarbonate resin, comprising the steps of: a) melt reacting a dihydroxy compound and a carbonate, optionally in the presence of a transesterification catalyst, thereby forming a polycarbonate in a molten phase having free hydroxyl end-groups and; and b) reacting said polycarbonate in a molten phase with an end-capping reagent to produce the end-capped polycarbonate resin, wherein the end-capping reagent comprises an acid anhydride, wherein said polycarbonate in a molten phase is subjected at least partially to a vacuum after being combined with said end-capping reagent. The present invention further relates to an end-capped polycarbonate resin obtainable by or obtained with such a method. The present invention further relates to a molded article comprising or consisting of this end-capped polycarbonate resin, as well as to a method for the manufacture of such a molded article.
Disclaimer: Curated by HT Syndication.
