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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 11696874 B1

PDFFull Text
Date of Patent:
Jul. 11, 2023

Filed:

Mar. 15, 2021

Dental photocurable composition excellent in color tone selectivity

Applicant:

Shofu Inc., Kyoto, JP;

Inventors:

Kenzo Yamamoto, Kyoto, JP;

Hideto Kasaba, Kyoto, JP;

Daisuke Hara, Kyoto, JP;

Shunsuke Miyata, Kyoto, JP;

Assignee:

SHOFU INC., Kyoto, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Michael F Pepitone

Int. Cl.
CPC ...
A61K 6/62 (2020.01); A61K 6/71 (2020.01); A61K 6/78 (2020.01); A61K 6/30 (2020.01); A61K 6/831 (2020.01); A61K 6/887 (2020.01); A61K 6/61 (2020.01); C08F 220/28 (2006.01); C08F 220/32 (2006.01); C08F 2/50 (2006.01); C08K 5/00 (2006.01); C08K 5/08 (2006.01); C08K 5/14 (2006.01); C08K 5/17 (2006.01);
U.S. Cl.
CPC ...
A61K 6/62 (2020.01); A61K 6/30 (2020.01); A61K 6/61 (2020.01); A61K 6/71 (2020.01); A61K 6/78 (2020.01); A61K 6/831 (2020.01); A61K 6/887 (2020.01); C08F 2/50 (2013.01); C08F 220/283 (2020.02); C08F 220/325 (2020.02); C08K 5/0025 (2013.01); C08K 5/08 (2013.01); C08K 5/14 (2013.01); C08K 5/17 (2013.01);
Abstract

[Problem] To provide a dental photocurable composition having sufficient mechanical property and being excellent in color tone selectivity because of having a small color difference between before curing and after curing. [Solution] To provide a dental photocurable composition, comprising (A) polymerizable monomer, (B) photosensitizer, (C) photoacid generator, (D) photopolymerization accelerator and (E) filler, wherein, the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer, 0.15 parts by mass or less of the (B-1) α-diketone compound, 0.5 parts by mass or more of the (C) photoacid generator, and 100 parts by mass or more of the (E) filler.

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