ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,474, issued on Dec. 16, was assigned to Trinseo Europe GmbH (Pfaeffikon, Switzerland).
"Impact resistant hydrophobic high heat optical acrylic copolymers" was invented by Jiaxin J. Ge (Lower Providence, Pa.) and Sri R. Seshadri (Holland, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to impact resistant acrylic copolymers and terpolymers incorporating high Tg, hydrophobic (meth)acrylates and derivatives that have high thermal stability and excellent impact resistance. These copolymers have a Tg of 114-130deg C., along with high molecular weight and high impact resistance. The copolymer is found to exhibit high heat resistan...