US Patent Issued to JF Polymers (Suzhou) on Nov. 18 for "High crystalline poly(lactic acid) filaments for material-extrusion based additive manufacturing" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,673, issued on Nov. 18, was assigned to JF Polymers (Suzhou) Co. Ltd. (Changshu, China).

"High crystalline poly(lactic acid) filaments for material-extrusion based additive manufacturing" was invented by Xiaofan Luo (Shanghai) and Zhaokun Pei (Weifang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) f...