ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,247, issued on Feb. 3, was assigned to THREEBOND Co. LTD. (Hachioji, Japan).
"Primer composition" was invented by Ai Omura (Hachioji, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a primer composition that achieves excellent adhesion to poorly adhesive materials. Specifically, the present invention relates to a primer composition that includes (A) benzophenone, (B) a compound that has at least 2 benzene rings and a molecular weight of at least 190, and (C) a solvent."
The patent was filed on Oct. 29, 2020, under Application No. 17/776,026.
*For further information, including images, charts and tables, please ...