US Patent Issued to TEIJIN on July 7 for "Method for producing aliphatic polyester, aliphatic polyester resin, and aliphatic polyester resin composition" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,022, issued on July 7, was assigned to TEIJIN Ltd. (Osaka, Japan).

"Method for producing aliphatic polyester, aliphatic polyester resin, and aliphatic polyester resin composition" was invented by Takaya Masuda (Osaka, Japan) and Masanori Miyamoto (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object of the present disclosure is to provide a method for producing an aliphatic polyester resin which substantially does not contain impurities, such as metals, and which has high molecular weight, particularly a polylactic acid having high molecular weight and high optical purity. The method for producing an aliphatic polyester resin of the ...