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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 11759299 B1

PDFFull Text
Date of Patent:
Sep. 19, 2023

Filed:

Mar. 25, 2020

Dental stereolithography-type three-dimensional printing material for preparing dental three-dimensional modeled object

Applicant:

Shofu Inc., Kyoto, JP;

Inventors:

Namiki Niwa, Kyoto, JP;

Hidefumi Fujimura, Kyoto, JP;

Assignee:

SHOFU INC., Kyoto, JP;

Attorney:

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

Primary Examiner:

Matthew M Nelson

Int. Cl.
CPC ...
A61C 13/00 (2006.01); C08F 2/50 (2006.01); C08F 20/16 (2006.01); C08F 20/20 (2006.01); C08F 22/12 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B33Y 40/20 (2020.01);
U.S. Cl.
CPC ...
A61C 13/0019 (2013.01); A61C 13/0013 (2013.01); C08F 2/50 (2013.01); C08F 20/16 (2013.01); C08F 20/20 (2013.01); C08F 22/12 (2013.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

To provide a dental stereolithography-type three-dimensional printing material in which the total preparing time required from modeling with using a 3D printer to a final curing is short, work efficiency is excellent, temporal shrinkage deformation of a dental three-dimensional modeled object is suppressed and a dimensional accuracy is excellent. The dental stereolithography-type three-dimensional printing material of the present invention comprises at least one or more (a) monofunctional acrylate monomer having an aromatic ring and (b) photopolymerization initiator, wherein an electronegativity difference between adjacent atoms which are bonded by covalent bond in all atoms constituting the (a) monofunctional acrylate monomer having an aromatic ring is less than 1.0.

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