MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517038668 A) filed by Kuraray Co. Ltd., Okayama, Japan, on April 22, for 'composition, dispersing agent for suspension polymerization, and method for producing vinyl-based polymer.'
Inventor(s) include Okamoto Yuji; and Seki Michinari.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "Provided are: a composition which contains a vinyl alcohol-based polymer and an amphipathic substance and which can yield polymer particles having a small average particle diameter, few coarse particles and good plasticizer-absorbing properties even if suspension polymerization is carried out at a high temperature; a dispersing agent for suspension polymerization, which contains this composition; and a method for producing a vinyl-based polymer. The present invention is a composition which contains a vinyl alcohol-based polymer (A) and an amphipathic substance (B). The vinyl alcohol-based polymer (A) is a carbonyl group-containing vinyl alcohol-based polymer having a degree of saponification of 60 mol% or more. The amphipathic substance (B) includes at least one type selected from the group consisting of a surfactant and a vinyl alcohol-based polymer having a degree of saponification of less than 60 mol%."
The patent application was internationally filed on Oct. 06, 2023, under International application No.PCT/JP2023/036477.
Disclaimer: Curated by HT Syndication.
