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Polymerizable composition suitable for LED light source

A polymerizable composition, the technology of the composition, which is applied in the directions of dental preparations, dental prostheses, compression mold cups, etc., can solve problems such as aesthetic problems, achieve high curing speed, small decrease in adhesiveness, and not easy to change color. Effect

Active Publication Date: 2011-06-15
KURARAY NORITAKE DENTAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aesthetics are problematic if the composition discolors during dental use

Method used

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  • Polymerizable composition suitable for LED light source
  • Polymerizable composition suitable for LED light source
  • Polymerizable composition suitable for LED light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0224] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to these Examples.

[0225] Experiment 1 Evaluation of unpolymerized thickness of polymerizable composition 1 (Study on the ratio of bisacylphosphine oxide and α-diketone)

[0226] (1) Preparation of polymeric composition

[0227] Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide (BAPO) was prepared as bisacylphosphine oxide (A), camphorquinone (CQ) was prepared as α-diketone (B), and tertiary amine (C) Preparation of 4-N, N-dimethylaminobenzoic acid ethyl ester (PDE) and preparation of 1,2-bis(3-methacryloyloxy-2-hydroxypropane) as polymerizable monomer (D) oxy)ethane (#801). Using these components, a polymerizable composition having the following composition was prepared.

[0228] [Table 1]

[0229] Bisacylphosphine oxide (A) / α-diketone ratio and unpolymerized thickness

[0230]

[0231] (The compounding amount of each component is in parts by weight)

...

Embodiment 2

[0238] Example 2 Evaluation of the unpolymerized thickness of the polymerizable composition 2 (study on the compounding ratio of α-diketone and tertiary amine)

[0239] (1) Preparation of polymeric composition

[0240] BAPO was prepared as bisacylphosphine oxide (A), CQ was prepared as α-diketone (B), PDE was prepared as tertiary amine (C), and #801 was prepared as polymerizable monomer (D). Using these components, a polymerizable composition having the following composition was prepared.

[0241] [Table 2]

[0242] α-diketone / tertiary amine ratio and unpolymerized thickness

[0243]

[0244] (The compounding amount of each component is in parts by weight)

[0245] (2) Determination of unpolymerized thickness

Embodiment 1

[0248] Example 1 Application of the polymeric composition of the present invention for a one-step adhesive system (one-component adhesive material)

[0249] (1) Preparation of one-component adhesive material

[0250] As an example, a one-component adhesive material was prepared using the polymerizable composition of the present invention. Its composition is shown in Table 3. In addition, as a comparative example, a one-component adhesive material using a polymerizable composition lacking the essential components of the polymerizable composition of the present invention was prepared, and a weight ratio of bisacylphosphine oxide (A) to α-diketone was used in this invention. A one-component adhesive material of a polymerizable composition outside the scope of the invention, a one-component adhesive material using a polymerizable composition whose content of tertiary amine (C) is outside the scope of the present invention, and a one-component adhesive material using a polymerizab...

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Abstract

A polymerizable composition which exerts high curability even when an LED irradiation device as well as a halogen lamp type irradiation device is used and which rarely discolors even when stored for a long period. When used as dental material, the polymerizable composition attains high bond strength between a cured body of the composition and tooth substance. The polyerizable composition comprises both a photopolymerization initiator composition and a polymerizable monomer (D). The photopolymeization initiator composition comprises both a photopolymerization initiator component consisting only of a bisacylphosphine oxide (A) and an alpha-diketone (B), and a tertiary amine (C). The (A) / (B) weight ratio of the bisacylphosphine oxide (A) to the a-diketone (B) is 1:9 to 9:1 and the (D) / (C) weight ratio of the polymerizable monomer (D) to the tertiary amine (C) is 100:0.5 to 100:10.

Description

technical field [0001] The present invention relates to polymerizable compositions suitable for photopolymerization using light emitting diode (LED) light sources, and in particular to polymerizable compositions suitable for dental use. Background technique [0002] In dental treatment, in order to restore the caries and defect of the tooth, the caries and defect are filled with a photocurable dental material containing a photopolymerization initiator, and the dental material is cured by irradiating light with a dental irradiator. to repair. [0003] For example, as a material used for restoration of teeth, Patent Document 1 discloses a photocurable dental material, which is characterized in that it contains a (meth)acrylate polymerizable monomer, an acylphosphine oxide-based polymerization initiator, and an amine compound. [0004] Patent Document 2 discloses a polymerizable composition containing two or more different polymerization initiators. Specifically, a polymeriza...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/50A61K6/083C08F20/28
CPCA61K6/0052C08F230/02C08F2/50C08F220/26C08F222/1006A61K6/083C08F220/06A61K6/62A61K6/887C08F222/102C08L33/08
Inventor 邹元爱石野博重
Owner KURARAY NORITAKE DENTAL
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