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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 11655324 B1

PDFFull Text
Date of Patent:
May. 23, 2023

Filed:

Oct. 04, 2019

Resin composition for optical shaping

Applicant:

Kuraray Noritake Dental Inc., Kurashiki, JP;

Inventors:

Misaki Ito, Niigata, JP;

Kenji Suzuki, Niigata, JP;

Assignee:

KURARAY NORITAKE DENTAL INC., Kurashiki, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Jessica Whiteley

Int. Cl.
CPC ...
C08F 2/46 (2006.01); C08F 2/50 (2006.01); C08G 61/04 (2006.01); C08F 290/06 (2006.01); B33Y 70/00 (2020.01); A61C 13/00 (2006.01); A61C 13/01 (2006.01); C08G 18/24 (2006.01); C08G 18/42 (2006.01); C08G 18/44 (2006.01); C08G 18/67 (2006.01); C08G 18/75 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B29C 64/124 (2017.01); A61C 7/08 (2006.01); B29K 33/04 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
C08F 290/067 (2013.01); A61C 13/0013 (2013.01); A61C 13/01 (2013.01); B33Y 70/00 (2014.12); C08G 18/246 (2013.01); C08G 18/4213 (2013.01); C08G 18/4238 (2013.01); C08G 18/44 (2013.01); C08G 18/6755 (2013.01); C08G 18/755 (2013.01); A61C 7/08 (2013.01); B29C 64/124 (2017.08); B29K 2033/04 (2013.01); B29L 2031/7536 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

The present invention provides a resin composition for optical shaping that, with its low viscosity, enables easy stereolithographical fabrication of an object, and that can produce an object having desirable toughness and desirable water resistance, particularly for dental mouthpieces and denture base materials. The present invention relates to a resin composition for optical shaping comprising a urethanized (meth)acrylic compound (A) and a photopolymerization initiator (B), the urethanized (meth)acrylic compound (A) being a (meth)acrylate containing at least one polyol moiety and a urethane bond per molecule, said at least one polyol moiety being selected from the group consisting of a polyester, a polycarbonate, a polyurethane, and a polyether each having a structure derived from a C4 to C18 aliphatic chain diol unit (a) having a branched structure.

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