US Patent Issued to KUREHA on Sept. 1 for "Downhole tool or member thereof containing polyglycolic acid" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,154, issued on Sept. 1, was assigned to KUREHA Corp. (Tokyo).

"Downhole tool or member thereof containing polyglycolic acid" was invented by Takuma Kobayashi (Tokyo) and Takahiro Suga (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "This technique is capable of suppressing reduction in thickness of a downhole tool or a component thereof in a well at a high temperature. The downhole tool or a component has a resin composition including: 50 parts by mass or more and 97 parts by mass or less of polyglycolic acid; 3 parts by mass or more and 50 parts by mass or less of polybutylene terephthalate; and 2 parts by mass or more and 15 parts by mass or ...