US Patent Issued to ZEON on Sept. 30 for "Cycloolefin ring-opened copolymer, composition for electrically insulating material, and electrically insulating material" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,521, issued on Sept. 30, was assigned to ZEON Corp. (Tokyo).

"Cycloolefin ring-opened copolymer, composition for electrically insulating material, and electrically insulating material" was invented by Naoya Kishi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cycloolefin ring-opened copolymer includes a structural unit derived from a norbornene compound that includes a heteroelement-containing hydrocarbon group and a structural unit derived from a norbornene compound that includes a heteroelement-free hydrocarbon group. In this copolymer, the structural unit derived from the norbornene compound that includes the heteroelement-containing hy...