US Patent Issued to NOK on Oct. 20 for "Acrylic rubber composition" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,810, issued on Oct. 20, was assigned to NOK Corp. (Tokyo).

"Acrylic rubber composition" was invented by Takahiro Higuma (Kanagawa, Japan) and Takuto Shimamura (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acrylic rubber composition that includes a blend product of an acrylic rubber [I] containing a copolymer of an ethyl acrylate/n-butyl acrylate/2-methoxyethyl acrylate/carboxyl group-containing vinyl monomer, and an acrylic rubber [II] containing a copolymer of an alkoxyalkyl acrylate/2-ethylhexyl acrylate/alkyl methacrylate/ethyl acrylate/carboxyl group-containing vinyl monomer; the blend product being compounded with silica an...