Dental photopolymerizable composition and photopolymerization initiator

• US 10,639,244 B2
• Filed: 10/31/2018
• Issued: 05/05/2020
• Est. Priority Date: 11/14/2017
• Status: Active Grant

• Current Assignee: GC Corporation (General Cannabis Corp.)
• Original Assignee: GC Corporation (General Cannabis Corp.)
• Inventors: Ishizuka, So, Sakaguchi, Yusuke, Matsumoto, Naofumi
• Primary Examiner(s): Whiteley, Jessica
• Application Number:
  US16/175,973
• Publication Number:
  US 20190142704A1
• Time in Patent Office: 552 Days
• Field of Search: 522 28, 522 7, 522 6, 522189, 522184, 522 1, 522 71, 520 1
• CPC Class Codes: A61C 19/003 Apparatus for curing resins by radiation
• CPC Class Codes: A61C 5/77 Methods or devices for making crowns
• CPC Class Codes: A61K 6/62 Photochemical radical initiators
• CPC Class Codes: A61K 6/80 Preparations for artificial teeth, for filling teeth or for capping teeth
• CPC Class Codes: A61K 6/824 comprising transition metal oxides
• CPC Class Codes: A61K 6/887 Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C08F 222/102 of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
• CPC Class Codes: C08F 222/1065 of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates
• CPC Class Codes: C08F 2800/20 as weight or mass percentages
• CPC Class Codes: C08L 33/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C08L 33/10 Homopolymers or copolymers of methacrylic acid esters

Abstract

A single-component dental photopolymerizable composition is provided that includes a (meth)acrylate compound, a vanadium compound, an α-diketone compound, and a tertiary aromatic amine compound.

Claims

1. A single-component dental photopolymerizable composition comprising:

a (meth)acrylate compound, a vanadium compound, an α

-diketone compound, a tertiary aromatic amine compound, and a photopolymerization initiator,

wherein the dental photopolymerizable composition does not include a (meth)acrylate compound having an acid group, and does not include an organic filler, but includes an inorganic filler, and

wherein the dental photopolymerizable composition does not include an aryl borate compound.

2. The single-component dental photopolymerizable composition according to claim 1, wherein a content of the vanadium compound in the single-component dental photopolymerizable composition is greater than or equal to 0.001 mass % and less than or equal to 1 mass %.

3. The single-component dental photopolymerizable composition according to claim 1, wherein the single-component dental photopolymerizable composition is used as a composite resin for abutment construction.

4. The single-component dental photopolymerizable composition according to claim 1,

wherein the vanadium compound includes at least one of vanadium acetylacetonate, vanadyl acetylacetonate, and vanadyl stearate, and

wherein a content of the at least one of vanadium acetylacetonate, vanadyl acetylacetonate, and vanadyl stearate is greater than or equal to 0.02% by mass and less than or equal to 0.20% by mass with respect to 100% by mass of the (meth)acrylate compound.

5. The single-component dental photopolymerizable composition according to claim 1,

wherein the dental photopolymerizable composition is a paste, and

wherein a bending strength of a set product of the paste is greater than or equal to 170 MPa.

6. The single-component dental photopolymerizable composition according to claim 1,

wherein the dental photopolymerizable composition is a paste, and

wherein a bending elastic modulus of a set product of the paste is greater than or equal to 10 GPa.

7. The single-component dental photopolymerizable composition according to claim 1,

wherein the dental photopolymerizable composition is a paste, and

wherein an extrusion hardness of the paste is less than or equal to 20.5 kgf.

9. The single-component dental photopolymerizable composition according to claim 1, wherein the dental photopolymerizable composition does not include an acidic compound.

8. A single-component dental photopolymerizable composition consisting of:

a (meth)acrylate compound consisting of one or more kinds of (meth)acrylate not having an acid group;

one or more vanadium compounds;

an α

-diketone compound;

a tertiary aromatic amine compound;

a filler consisting of an inorganic filler;

a polymerization inhibitor; and

a photopolymerization initiator.