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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 12703767 B1

PDFFull Text
Date of Patent:
Aug. 11, 2026

Filed:

Sep. 17, 2020

Fiber base material and artificial leather

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Tomohiro Tetsui, Takaishi, JP;

Miwa Ueguchi, Takaishi, JP;

Assignee:

DIC Corporation, Tokyo, JP;

Attorneys:

Troutman Pepper Locke LLP

James E. Armstrong, IV

Primary Examiner:

Kregg T Brooks

Assistant Examiner:

David R. Foss

Int. Cl.
CPC ...
C08G 18/32 (2006.01); C08G 18/08 (2006.01); C08G 18/10 (2006.01); C08G 18/12 (2006.01); C08G 18/24 (2006.01); C08G 18/28 (2006.01); C08G 18/34 (2006.01); C08G 18/48 (2006.01); C08G 18/75 (2006.01); C08J 5/24 (2006.01); C08L 75/04 (2006.01); C08L 75/08 (2006.01); D06M 15/568 (2006.01); D06M 23/04 (2006.01); D06N 3/14 (2006.01); D06M 101/32 (2006.01);
U.S. Cl.
CPC ...
C08G 18/3228 (2013.01); C08G 18/0866 (2013.01); C08G 18/10 (2013.01); C08G 18/12 (2013.01); C08G 18/244 (2013.01); C08G 18/283 (2013.01); C08G 18/3234 (2013.01); C08G 18/348 (2013.01); C08G 18/4808 (2013.01); C08G 18/4833 (2013.01); C08G 18/4858 (2013.01); C08G 18/758 (2013.01); C08J 5/246 (2021.05); D06M 15/568 (2013.01); D06M 23/04 (2013.01); C08G 2110/0066 (2021.01); C08J 2375/04 (2013.01); C08J 2375/08 (2013.01); C08J 2467/00 (2013.01); C08L 75/04 (2013.01); C08L 75/08 (2013.01); D06M 2101/32 (2013.01); D06N 3/14 (2013.01);
Abstract

A task to be achieved by the invention is to provide a fiber substrate having excellent filling state of a urethane resin and excellent hand feeling. The present invention provides a fiber substrate filled with a urethane resin (X), which is formed from a water dispersion of the urethane resin (X), wherein the water dispersion has a urethane resin (X) content of 50 to 80% by mass, and the water dispersion contains no organic solvent. Further, the present invention provides an artificial leather having the above-mentioned fiber substrate. It is preferred that the urethane resin (X) uses a chain extender (a1) as a raw material. Further, the chain extender (a1) which has an amino group is preferably used.

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