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.

Date of Patent:
Feb. 27, 2024

Filed:

Jan. 20, 2021
Applicants:

Daiichi Kasei Co., Ltd., Tokyo, JP;

Kajihara Design Studio Inc, Hokkaido, JP;

Inventors:

Hidetoshi Kajihara, Hokkaido, JP;

Yukio Honda, Tokyo, JP;

Tomoyuki Yabe, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06N 3/14 (2006.01); B32B 27/12 (2006.01); B32B 27/40 (2006.01); B32B 38/06 (2006.01); D06P 1/34 (2006.01); D06P 1/52 (2006.01);
U.S. Cl.
CPC ...
D06N 3/14 (2013.01); B32B 27/12 (2013.01); B32B 27/40 (2013.01); B32B 38/06 (2013.01); D06P 1/34 (2013.01); D06P 1/5285 (2013.01);
Abstract

[Problem] To provide a novel method for manufacturing synthetic leather that is colored using dye. [Solution] A method for manufacturing synthetic leather having an outer surface layer on a base fabric, said method comprising the steps of: (i) coating a releasable base material with an outer surface layer composition containing a polyurethane resin and at least one dye selected from natural dyes and chemical dyes, and drying the coating to form an outer surface layer; and (ii) layering the outer surface layer over a base fabric.


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