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:
Nov. 12, 2024
Filed:
Dec. 03, 2020
Kuraray Co., Ltd., Kurashiki, JP;
Masato Warita, Okayama, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
A leather-like sheet includes: a fiber base material; an intermediate resin layer stacked on one surface of the fiber base material; and a surface resin layer stacked on the intermediate resin layer. The surface resin layer contains a polyether-based polyurethane and spherical fine particles having a heat resistance at 200° C., and has a content ratio of the spherical fine particles of 5 to 40 mass %. The spherical fine particles have a specific heat of 0.95 kJ/(kg·K) or more, a particle size D(median diameter) at a cumulative distribution of 50 vol %, of 2.5 to 10 μm, and a particle size Dat a cumulative distribution of 10 vol % of the spherical fine particles which satisfies a condition that a particle size dispersity D/D≤3.