US Patent Issued to Kaneka Americas Holding on May 26 for "Modifiers for polyesters that improve viscosity in melt" (American, Japanese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,563, issued on May 26, was assigned to Kaneka Americas Holding Inc. (Pasadena, Texas).

"Modifiers for polyesters that improve viscosity in melt" was invented by Tetsuro Yamamoto (Pasadena, Texas), Noah Boyd (Pasadena, Texas), Yoshiaki Matsuoka (Osaka, Japan), Shusuke Yoshihara (Pasadena, Texas) and Ian Winters (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A viscosity modifier for a condensation polymer may include a chain extender comprising at least one reactive monomer and at least one vinyl monomer copolymerizable with the reactive monomer, the chain extender being present in an amount ranging from 15 to 70 wt % of the viscosity modifier...