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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 11866527 B1

PDFFull Text
Date of Patent:
Jan. 09, 2024

Filed:

Mar. 22, 2021

Photocurable composition, cured product, and dental product

Applicant:

Mitsui Chemicals, Inc., Tokyo, JP;

Inventors:

Toshikazu Sakamaki, Tokyo, JP;

Mai Kimura, Sodegaura, JP;

Hiroki Murai, Ichihara, JP;

Takaaki Hayashi, Funabashi, JP;

Suguru Endo, Ichikawa, JP;

Assignee:

MITSUI CHEMICALS, INC., Tokyo, JP;

Attorney:

BUCHANAN INGERSOLL & ROONEY PC

Primary Examiner:

Jessica Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); A61K 6/887 (2020.01); A61K 6/62 (2020.01); C08F 222/10 (2006.01); C08F 220/30 (2006.01); C08F 220/18 (2006.01); A61C 13/00 (2006.01); C08F 220/20 (2006.01); C08K 5/5397 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
C08F 2/50 (2013.01); A61C 13/0019 (2013.01); A61K 6/62 (2020.01); A61K 6/887 (2020.01); C08F 220/1811 (2020.02); C08F 220/20 (2013.01); C08F 220/301 (2020.02); C08F 222/1065 (2020.02); C08K 5/5397 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

A photocurable composition includes a photopolymerizable component and a photopolymerization initiator. When a test piece with 39 mm length, 8 mm width, and 4 mm thickness, is produced by photofabrication under conditions in which the photocurable composition is irradiated with visible light having 405 nm wavelength at 12 mJ/cmirradiation dose to form a cured layer with 100 m thickness, the cured layer is stacked in a thickness direction thereof to form a rectangular fabrication product with 39 mm length, 8 mm width, and 4 mm thickness, and the fabrication product is irradiated with ultraviolet rays having 365 nm wavelength at 10 J/cmirradiation dose to produce the test piece, a total fracture work of the test piece measured in compliance with ISO20795-1:2008 is 1100 J/mor more.

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