ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,716,154, issued on Aug. 25, was assigned to MITSUI CHEMICALS ASAHI LIFE MATERIALS Co. LTD. (Tokyo).
"Spun-bonded nonwoven fabric and sanitary material" was invented by Shohei Saita (Ichihara, Japan), Taiichirou Ichikawa (Tokyo) and Hirotaka Kanaya (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a spun-bonded nonwoven fabric including fibers formed of a resin composition that contains: a propylene polymer (A); and a polymer (B) which is at least one selected from the group consisting of polyolefins, other than the propylene polymer (A), and polyesters. The fibers have a sea-island structure. The fibers include fibers in which a r...