US Patent Issued to TORAY INDUSTRIES on Oct. 20 for "Poly(arylene sulfide) and production method therefor" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,762, issued on Oct. 20, was assigned to TORAY INDUSTRIES Inc. (Tokyo).

"Poly(arylene sulfide) and production method therefor" was invented by Naoto Kumagai (Tokai, Japan), Hideyuki Nakashima (Tokai, Japan), Tomoya Yoshida (Nagoya, Japan) and Takeshi Unohara (Otsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyarylene sulfide in which when the cumulative integral value from the molecular weight of 100 to the molecular weight of 10,000 in a molecular weight distribution curve is 100, the cumulative integrated value at the molecular weight of 4000 is 48 to 53, and when the melt flow rate of the polyarylene sulfide is defined as MFR1, and w...