ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,582, issued on May 27, was assigned to KANEKA Corp. (Osaka, Japan).
"Method for producing expanded particles" was invented by Masahide Ebisui (Osaka, Japan) and Yasuhiro Iwata (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing expanded particles having a high expansion ratio by a pressure-release expansion with a simpler configuration and at a low facility cost is provided. A production device includes an expansion cylinder being provided with a connecting port that connects with open-system branch cylinder and having a space of a saturated steam atmosphere. The space of a saturated steam atmosphere may be a differen...