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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 10662278 B1

PDFFull Text
Date of Patent:
May. 26, 2020

Filed:

Mar. 30, 2016

Composition for optical stereolithography and method for producing stereolithographic object using the same

Applicant:

Okamoto Chemical Industry Co., Ltd., Saitama, JP;

Inventors:

Hiroaki Okamoto, Saitama, JP;

Masaro Nakatsuka, Saitama, JP;

Assignee:

OKAMOTO CHEMICAL INDUSTRY CO., LTD., Saitama, JP;

Attorney:

Alston & Bird LLP

Primary Examiner:

Shane Fang

Int. Cl.
CPC ...
C08G 59/24 (2006.01); B29C 67/00 (2017.01); C08L 33/00 (2006.01); B33Y 10/00 (2015.01); C08G 59/20 (2006.01); B33Y 80/00 (2015.01); B33Y 70/00 (2020.01); C08L 63/00 (2006.01); G02B 1/04 (2006.01); B29C 64/135 (2017.01); C08F 2/50 (2006.01); C08F 122/10 (2006.01); C08G 59/38 (2006.01); C08G 65/18 (2006.01); G03F 7/00 (2006.01); G03F 7/004 (2006.01); G03F 7/038 (2006.01);
U.S. Cl.
CPC ...
C08G 59/245 (2013.01); B29C 64/135 (2017.08); B29C 67/00 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08F 2/50 (2013.01); C08F 122/105 (2013.01); C08G 59/20 (2013.01); C08G 59/38 (2013.01); C08G 65/18 (2013.01); C08L 33/00 (2013.01); C08L 63/00 (2013.01); G02B 1/04 (2013.01); G03F 7/0037 (2013.01); G03F 7/0045 (2013.01); G03F 7/0046 (2013.01); G03F 7/038 (2013.01);
Abstract

Provided is a water-soluble composition for optical three-dimensional modeling having little burden on the environment, which enables the production of a three-dimensional model that has both little warping deformation and excellent mechanical characteristics, while exhibiting good adhesion between cured film layers during the production process of the three-dimensional model; and a method for producing a three-dimensional model, which uses this composition for optical three-dimensional modeling. Specifically provided is a water-soluble composition for optical three-dimensional modeling, which contains (A) 10-70% by mass of a water-soluble cationically polymerizable compound that is an ether derivative compound of a sorbitol having a glycidyl ether structure, (B) 1-30% by mass of a water-soluble radically polymerizable compound having a methacryl group and/or an acryl group, (C) 0.1-20% by mass of an antimony-free cationic polymerization initiator that is a sulfonium compound or a bis(alkylphenyl)iodonium compound, and (D) 0.1-20% by mass of a radical polymerization initiator.

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