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Publication No: US2023340197 [USA] Application No: 2023340197
Title: Schiff base incorporated double metal cyanide catalyst for the production of polyether polyols
Publication Date: 26-10-2023 File Date: 21-04-2023
Inventor(s): Swati; Kumar Umesh; Verma Akash; Sharma Bhawna; Kumar Amod; Senthilkumar Thangaraj; Ganguly Sudip Kumar; Ray Anjan
IPC Classification: C08G65/10
Abstract:  A double metal cyanide [DMC] catalyst and a method for the synthesis thereof at room temperature is disclosed herein. Various Schiff bases are incorporated as organic complexing agents in the DMC catalysts. The catalysts of the present invention are highly active for the ring opening polymerization (ROP) of epoxides in the presence of different H-functional initiators to produce polyether polyols (PEPO) with a wide range of average molecular weight (Mw) and polydispersity index (PDI).
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CSIR-Indian Institute of Pertroleum[CSIR-IIP]
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Industrial Applications Catalysts [Chemistry, Chemical Processes] Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes]