MUMBAI, India, Sept. 26 -- Intellectual Property India has published a patent application (202547083276 A) filed by Wacker Chemie Ag, Munchen, Germany, on Sept. 2, for 'derivatives of poly-3-hydroxy alkanoates and method for the preparation thereof.'
Inventor(s) include Stepp, Michael.
The application for the patent was published on Sept. 26, under issue no. 39/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a method for the preparation of poly-3-hydroxy alkanoates which have an ester unit as a functional group on one chain end and a further functional group on the other chain end, said method comprising the following steps: Step 1: Ring opening polymerisation, during which at least one -lactone (I) is reacted with at least one unsaturated carboxylic acid (II) in the presence of at least one heterogeneous catalyst to form the poly-3-hydroxy alkanoate (III); Step 2: Chlorination, during which compound (III) is reacted with at least one chlorinating agent CI such that the poly-3-hydroxy alkanoate carboxylic acid chloride (IV) is produced; and Step 3: Derivatisation, during which compound (IV) is reacted with at least one compound (V), having at least one functional group X-Y, to form the compound (VI) with the separation of Y-Cl."
The patent application was internationally filed on Mar. 08, 2023, under International application No.PCT/EP2023/055935.
Disclaimer: Curated by HT Syndication.
