US Patent Issued to Denka on Sept. 1 for "Copolymer, dispersant, and resin composition" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,181, issued on Sept. 1, was assigned to Denka Co. Ltd. (Tokyo).

"Copolymer, dispersant, and resin composition" was invented by Ippei Takasaki (Tokyo), Kazuyuki Igarashi (Tokyo), Tomoyuki Kanai (Tokyo) and Yukihiko Yamashita (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is the copolymer having a (meth)acrylic monomer unit A having an anionic group, a (meth)acrylic monomer unit B having a cationic group, and a (meth)acrylic monomer unit C other than the (meth)acrylic monomer unit A and the (meth)acrylic monomer unit B."

The patent was filed on April 7, 2020, under Application No. 17/602,545.

*For further information, including imag...