MUMBAI, India, July 31 -- Intellectual Property India has published a patent application (202647087013 A) filed by Matsumoto Yushi-Seiyaku Co. , Ltd. on July 16, 2026, for Treatment Agent For Carbon Fiber Precursor And Use Thereof.
Inventor includes Omae Akihiro.
The application for the patent was published on July 24, 2026, under issue no. 30/2026.
Abstract: The purpose of the present invention is to provide: a treatment agent for a carbon fiber precursor, the treatment agent being configured such that when used to produce a carbon fiber precursor and carbon fibers, even after long-term post-preparation storage, successfully reduces fluff and yarn breakage; and methods for producing a carbon fiber precursor using the treatment agent, and carbon fibers using the treatment agent. The treatment agent for a carbon fiber precursor according to the present invention contains a silicone (A) and a (poly)oxyalkylene derivative (B), and satisfies conditions 1 and 2. Condition 1: Absorbance (X1) at 600 nm when made into an aqueous dispersion having a non-volatile content concentration of 1 wt% is 0.07-1.0. Condition 2: Absorbance (X2) at 900 nm when made into an aqueous dispersion having a non-volatile content concentration of 5 wt% is 0.05-0.8.
Disclaimer: Curated by HT Syndication.
