MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202637074822 A) filed by Snf Group on June 17, 2026, for Method For Preparing Water-Soluble Polymers In Powder Form.
Inventors include Kayser, Franck; Blondel, Frdric; and Divers, Thomas.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present invention relates to a method for preparing a water-soluble polymer having an average molecular weight by weight greater than 1 million Daltons. This method comprises the following successive steps: a) Preparing a polymer, in the form of a gel, by free-radical polymerization in aqueous solution at an initiation temperature of between -20°C and +50°C, of at least one hydrophilic monounsaturated ethylenic monomer, the at least one hydrophilic monounsaturated ethylenic monomer having, relative to the weight of the polymerization charge, a concentration of between 10 and 60%, and in the presence of 0.01 to 5% by weight of at least one surfactant, relative to the total weight of the at least one hydrophilic monounsaturated ethylenic monomer used; b) Granulating the resulting polymer gel; c) Drying the granulated polymer gel to obtain a polymer in powder form; d) Grinding and sifting the powder.
Disclaimer: Curated by HT Syndication.
