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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 12252474 B1

PDFFull Text
Date of Patent:
Mar. 18, 2025

Filed:

Apr. 27, 2020

Ultraviolet absorber having excellent heat resistance and long-wavelength absorption

Applicant:

Miyoshi Oil & Fat Co., Ltd., Tokyo, JP;

Inventors:

Nobuhiro Kaneko, Tokyo, JP;

Daisuke Nakamura, Tokyo, JP;

Kotaro Kaneko, Tokyo, JP;

Koji Kawai, Tokyo, JP;

Assignee:

MIYOSHI OIL & FAT CO., LTD., Tokyo, JP;

Attorney:

Fox Rothschild LLP

Primary Examiner:

Brieann R Johnston

Int. Cl.
CPC ...
C07D 249/20 (2006.01); C07D 403/04 (2006.01); C07D 417/04 (2006.01); C08K 5/00 (2006.01); C08K 5/3475 (2006.01);
U.S. Cl.
CPC ...
C07D 249/20 (2013.01); C07D 403/04 (2013.01); C07D 417/04 (2013.01); C08K 5/005 (2013.01); C08K 5/3475 (2013.01);
Abstract

Provided is an ultraviolet absorber with a high molar extinction coefficient that is particularly superior in heat resistance, odor suppression at the time of thermal decomposition and long-wavelength absorption, as compared to a conventional ultraviolet absorber. The ultraviolet absorber is an ultraviolet absorber comprising a 2-phenylbenzotriazole derivative having a bonding group represented by the following formula (I) or (II):

Find Patent Forward Citations

Kaneko, Nobuhiro. (2025). Ultraviolet absorber having excellent heat resistance and long-wavelength absorption (U.S. Patent No. 12252474). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12252474

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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