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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.:

US 12508801 B1

PDFFull Text
Date of Patent:
Dec. 30, 2025

Filed:

Apr. 01, 2021

Colored resin sheet and leather-like sheet

Applicant:

Kuraray Co., Ltd., Kurashiki, JP;

Inventors:

Daisuke Matsuda, Okayama, JP;

Masato Warita, Okayama, JP;

Takehiro Sato, Okayama, JP;

Yuta Akagi, Okayama, JP;

Assignee:

KURARAY CO., LTD., Kurashiki, JP;

Attorney:

Grüneberg and Myers PLLC

Primary Examiner:

Jeremy R Pierce

Int. Cl.
CPC ...
B32B 27/20 (2006.01); B32B 27/12 (2006.01); C08J 5/18 (2006.01); D06N 3/00 (2006.01); D06N 3/04 (2006.01); D06N 3/12 (2006.01); D06N 3/14 (2006.01); D06N 3/18 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B32B 27/12 (2013.01); C08J 5/18 (2013.01); D06N 3/0065 (2013.01); D06N 3/042 (2013.01); D06N 3/123 (2013.01); D06N 3/14 (2013.01); D06N 3/186 (2013.01); B32B 5/022 (2013.01); B32B 5/026 (2013.01); B32B 7/12 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); B32B 2255/02 (2013.01); B32B 2255/26 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0284 (2013.01); B32B 2264/302 (2020.08); B32B 2305/026 (2013.01); B32B 2305/30 (2013.01); B32B 2307/414 (2013.01); C08J 2375/04 (2013.01);
Abstract

A colored resin sheet includes a resin and a colorant dispersed in the resin, and has an average value of visible light transmittances for a red range of a wavelength of 680 to 780 nm, of 50% or more. The colored resin sheet has a combination of a lightness L* value and an average value of light transmittances for an entire visible light range of a wavelength of 380 to 780 nm, respectively, of: a) 15 or less, and 15% or more; b) greater than 15 and less than or equal to 35, and 25% or more; or c) greater than 35 and less than or equal to 60, and 40% or more. A leather-like sheet includes a colored resin layer and a surface having a lightness L* value of 40 or less, and has an average value of visible light transmittances for the red range, of 5% or more.

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