MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202647114753 A) filed by Matsumoto Yushi-Seiyaku Co. , Ltd. on September 25, 2026, for Treatment Agent For Carbon Fiber Precursor And Use Of Same.
Inventor includes Kikuta, Toshihiko.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: The purpose of the present invention is to provide a treatment agent for a carbon fiber precursor, with which it is possible to suppress degradation of a carbon fiber precursor even in cases where the carbon fiber precursor that is produced by applying the treatment agent for a carbon fiber precursor is stored for a long period of time, and with which it is also possible to achieve carbon fibers that have excellent physical properties even in cases where a carbon fiber precursor that has been stored for a long period of time is used. A treatment agent for a carbon fiber precursor according to the present invention contains a silicone (A) that has an amino group and an aromatic compound (B) that has a diphenylmethane skeleton, and this treatment agent for a carbon fiber precursor satisfies at least one selected from among the condition 1 and the condition 2 described below. Condition 1: The acid value of the treatment agent is 0.1-30 mgKOH/g. Condition 2: A Brønsted acid compound (D) is contained therein, and the proportion of the Brønsted acid compound (D) in the nonvolatile content of the treatment agent is 0.05-10 wt%.
Disclaimer: Curated by HT Syndication.
