The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
Mar. 10, 2022
Toray Industries, Inc., Tokyo, JP;
Haruka Oura, Osaka, JP;
Tatsuya Hagiwara, Anpachi-gun, JP;
Misao Omori, Otsu, JP;
Yukihiro Matsuzaki, Nagoya, JP;
TORAY INDUSTRIES, INC., Tokyo, JP;
Abstract
In order to provide artificial leather having both strength (in particular, tensile strength and tear strength), surface appearance, and a dense feeling in artificial leather including a fiber-entangled body containing a nonwoven fabric made of ultrafine fibers containing a large amount of inorganic particles (in particular, metal compounds) as a constituent element, and an elastic polymer, the artificial leather of the present invention is artificial leather including a fiber-entangled body containing a nonwoven fabric made of ultrafine fibers having an average single fiber diameter of 1.0 μm or more and 10.0 μm or less as a constituent element and an elastic polymer, and satisfies the following requirements: (1) the ultrafine fibers include a polyester-based resin containing a manganese-based compound; (2) an average particle diameter of the manganese-based compound is 0.01 μm or more and 0.20 μm or less; and (3) the ultrafine fibers contain a manganese element in an amount of 0.1 ppm or more and 50.0 ppm or less in 100 mass % of the ultrafine fiber.