ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,936, issued on Jan. 13, was assigned to ARKEMA FRANCE (Puteaux, France).
"Acrylic composition for 3-D printing" was invented by David Shen-Ren Liu (Bala Cynwyd, Pa.), Mary K. Calvin (Havertown, Pa.), Robert J. Barsotti (Newtown Square, Pa.) and Jing-Han Wang (King of Prussia, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an acrylic copolymer composition useful for 3-D printing, that can be formed into a uniform filament and 3-D printed using material extrusion additive manufacturing, into an article having low warpage, low shrinkage, good internal optical properties, and good mechanical properties. The acrylic copolymer...