Low water-sensitive dental composition

Patent metadata

Field	Value
Publication number	US-11207247-B2
Application number	US-202016829259-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Mar 26, 2019
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

An object of the present disclosure is to provide a dental composition that can exhibit sufficient curability even in a state where moisture is excessive as in the oral environment. The dental composition of the present disclosure contains component (a): monomer containing (meth)acrylamide group represented by formula (1):(In formula, R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other. R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other.)

First claim

What is claimed is:

1. A dental composition containing component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
wherein the dental composition does not contain (i): acidic group-containing monomer.

2. The dental composition of claim 1 ,
wherein the component (a): monomer containing (meth)acrylamide group represented by formula (1) is a monomer represented by formula (2):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other.

3. The dental composition of claim 1 ,
wherein all Rs in the formula (2) are hydrogen atom.

4. The dental composition of claim 2 ,
wherein the component (a): monomer containing (meth)acrylamide group represented by formula (1) is the only monomer containing (meth)acrylamide in the dental composition.

5. A dental composite material containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (b): filler,
component (c): monomer other than the component (a), and
component (d): polymerization initiator, and
wherein a ratio of the component (a) in the total amount of the component (a) and the component (c) is within a range of 0.1 to 20 wt. %, and
wherein the dental composite material does not contain (i): acidic group-containing monomer.

6. A resin cement containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (b): filler,
component (f): polymerization catalyst,
component (g): silane coupling agent,
component (h): radical polymerizable monomer, and
component (i): acidic group-containing monomer, and
wherein 0.1 to 20 parts by weight of the component (a) is contained with respect to 100 parts by weight of the component (h).

7. A denture restorative material containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (c): monomer other than the component (a),
component (j): (meth) acrylic acid (co) polymer, and
component (f): polymerization catalyst, and
wherein a ratio of the component (a) in the total amount of the component (a) and the component (c) is within a range of 0.1 to 20 wt. %, and
wherein the component (f) contains at least one of a combination of a barbituric acid derivative and a halogen ion-forming compound or a combination of an organic peroxide and an amine compound.

8. A tooth substance adhesive primer containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (k): acid group-containing monomer,
component (l): water,
component (m): water-soluble organic solvent, and
component (f): polymerization catalyst, and
wherein 0.1 to 20 parts by weight of the component (a) is contained with respect to 100 parts by weight of the total of the components of the tooth substance adhesive primer other than the component (a) and the component (f).

9. A dental primer for modifying a surface of a tooth restoration containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (p): organic solvent,
component (g): silane coupling agent, and
component (q): acid anhydride and/or weakly acidic compound, and
wherein the component (g) is contained within a range of 0.1 to 15 wt. %.

10. A dental adhesive composition containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (c): monomer other than the component (a), and
component (f): polymerization catalyst, and
wherein the component (a) is contained within a range of 0.1 to 20 wt. %, and
wherein the dental adhesive composition does not contain (i): acidic group-containing monomer.

11. A tooth substance adhesive composition containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (i): acidic group-containing monomer,
component (t): monomer other than the component (a) and the component (i),
component (l): water and/or component (p): organic solvent,
component (f): polymerization catalyst, and
component (u): sulfur atom-containing monomer, and
wherein the component (a) is contained within a range of 0.1 to 20 wt. %.

12. A dental adhesive resin cement containing
component (a): monomer containing (meth)acrylamide group represented by formula (1):

wherein R represents a hydrogen atom or a methyl group and Rs may be the same or different from each other, R2 is an alkyl group having 2 to 6 carbon atoms and R2s may be the same or different from each other,
component (b): filler,
component (i): acidic group-containing monomer,
component (u): sulfur atom-containing monomer,
component (g): silane coupling agent,
component (d): polymerization initiator, and
component (v): monomer other than the component (a), the component (i) and the component (u), and
wherein the component (a) is contained within

Assignees

• Shofu Inc

Inventors

• Kadobayashi Yusei
• Yaana Hiroshi
• Uchida Jun
• Sadakane Yuji

Classifications

• A61K6/836

  Glass · CPC title

• A61K6/60

  comprising organic or organo-metallic additives · CPC title

• A61K6/887

  Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• A61K6/30

  Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives · CPC title

• A61K6/889 Primary

  Polycarboxylate cements; Glass ionomer cements · CPC title