US Patent Issued to JIANGSU GANGHONG FIBER on Sept. 16 for "Melt-spun high-viscosity pet/low-viscosity pet two-component elastic fiber and preparation method therefor" (Chinese Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,106, issued on Sept. 16, was assigned to JIANGSU GANGHONG FIBER Co. LTD. (Suzhou, China).

"Melt-spun high-viscosity pet/low-viscosity pet two-component elastic fiber and preparation method therefor" was invented by Shuchang Bian (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a melt-spun high-viscosity PET/low-viscosity PET two-component elastic fiber and a preparation method therefor. The preparation method adopts a six-reactor process. Terephthalic acid and ethylene glycol undergo first and second esterification reactions and first and second prepolymerization reactions, and an obtained ethylene ter...