US Patent Issued to Asahi Kasei on Jan. 20 for "Polyurethane elastic fiber, winding body therefor, gather member and hygienic material" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,166, issued on Jan. 20, was assigned to Asahi Kasei K.K. (Tokyo).

"Polyurethane elastic fiber, winding body therefor, gather member and hygienic material" was invented by Hideyuki Goto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are: polyurethane elastic fibers that achieve heat resistance, adhesiveness, and reelability and that are suitable for a gather member; a winding body therefor; a gather member; and a sanitary material. The present invention relates to: polyurethane elastic fibers that are multifilaments and that contain urethane bonds and urea bonds, the polyurethane elastic fibers being characterized in that the ratio of...