US Patent Issued to Kuraray Europe on Sept. 15 for "Ionomer resin" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,559, issued on Sept. 15, was assigned to Kuraray Europe GmbH (Hattersheim, Germany).

"Ionomer resin" was invented by Atsuhiro Nakahara (Tsukuba, Japan), Takuro Niimura (Tsukuba, Japan), Kenta Takemoto (Tsukuba, Japan) and Yoshiaki Asanuma (Kurashiki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an ionomer resin comprising a carboxylic acid ester unit (A), a carboxylic acid unit (B), a neutralized carboxylic acid unit (C), and an ethylene unit (D), wherein, based on the total of monomer units constituting the ionomer resin, the content of the carboxylic acid ester unit (A) is 0.01 to 1.8 mol %, and the total ...