Phosphate ester compound, metal salt thereof, dental material, and demtal composition

A phosphate ester and compound technology, which is applied in the field of dental materials and dental compositions, phosphate ester compounds and their metal salts, can solve the problems of insufficient storage stability, operability, polymerizability, and adhesiveness, and material preservation. There are problems such as stability, and the effect of excellent polymerization is achieved

Active Publication Date: 2009-08-26
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in order to improve adhesion, methacrylate compounds having a specific structure of phosphoric acid groups (for example, 10-methacryloyloxydecyl phosphate, etc.) The phosphate group of the acidic group is hydrolyzed, so there is a problem with the storage stability of the material
In order to solve the above-mentioned problems, JP-A-2003-89613 and JP-A-2004-131468 propose dental materials using polymerizable monomers with novel structures, but it has been clarified that they are difficult to maintain in terms of storage stability, operability, and polymerizability. , adhesion, etc. did not fully meet the expected performance

Method used

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  • Phosphate ester compound, metal salt thereof, dental material, and demtal composition
  • Phosphate ester compound, metal salt thereof, dental material, and demtal composition
  • Phosphate ester compound, metal salt thereof, dental material, and demtal composition

Examples

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preparation example Construction

[0238] The method for preparing the dental composition of the present invention is not particularly limited, but it is preferably prepared by a hitherto known method. That is, in the case of a composite resin for dental restoration, for example, a predetermined amount of a polymerizable compound, a polymerization initiator, a filler, and various additives added as required are weighed, mixed and kneaded, and a paste is prepared. The method of forming a composition, etc.

[0239] When using a polymerizable compound, in order to remove insoluble matter or foreign matter, it is preferable to perform purification by operations such as filtration before polymerization. In addition, in order to prevent generation of air bubbles in the cured product, it is preferable to sufficiently degas and defoam the composition under reduced pressure.

[0240] As a method of using the dental composition of the present invention, for example, in the case of a composite resin for dental restoratio...

Synthetic example 1

[0246]

[0247] Mix and dissolve 168.2 g (0.74 mol) of 2-(4'-aminophenyl)-2-(4'-hydroxyphenyl) propane and 350 g of N,N-dimethylacetamide, and keep at 40°C for 2 hours To the obtained solution, 77.0 g (0.74 mol) of methacryloyl chloride was dropped. After further heating at 50° C. for 1 hour, it was confirmed by liquid chromatography that the reaction was substantially completed, and then cooled to room temperature. After diluting by adding 300 ml of ethyl acetate, the aqueous phase was washed with water until it became neutral, and liquid separation was carried out, and then, the organic phase was taken out. The solvent was distilled off under reduced pressure, the mixture was concentrated, and the precipitated solid was collected by filtration. Carry out slag refining with methanol / water mixed solvent to obtain 2-(4'-methacryloylaminophenyl)-2-(4'-hydroxyphenyl) propane [following formula (2-ii-1 ) compound] 180.7 g (0.62 mol) of colorless powdery crystals.

[0248] Yie...

Synthetic example 2

[0260]

[0261] 32.7 g (0.30 mol) of p-aminophenol and 80 g of N,N-dimethylacetamide were mixed and dissolved, and 29.8 g (0.285 mol) of methacryloyl chloride was dropped into the resulting solution at 50° C. over 2 hours. After further heating at 50° C. for 2 hours, it was confirmed by liquid chromatography that the reaction was substantially completed, and then cooled to room temperature. Add 750g of ethyl acetate and 1300g of distilled water, wash with water, separate liquid, and further use NaHCO 3The organic phase was washed with aqueous solution. Then, 200 g of toluene was added to the organic phase, and the solvent was distilled off under reduced pressure. During the distillation, concentration was carried out while adding 400 g of toluene in two portions, and the distillation was terminated when a solid precipitated. After adding 500 g of toluene to the obtained solid to form slag, it was filtered and washed to obtain a wet body. Drying was carried out at 40° C. i...

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Abstract

The invention provides a phosphate compound having an unsaturated double bond and a metal salt thereof; a dental material containing a phosphate compound having an unsaturated double bond and / or a metal salt thereof; and a dental composition containing a phosphate compound having an unsaturated double bond and / or a metal salt thereof. The phosphate compound of the invention provides a dental material and a dental composition such as a bonding material, adhesive material and a dental luting agent that are highly stable during storage, convenient for handling, and that exhibit higher adhesiveness and bond durability.

Description

technical field [0001] The present invention relates to a phosphoric acid ester compound and its metal salt, a dental material and a dental composition. Background technique [0002] As an artificial tooth or crown material for repairing a tooth or a crown part of a natural tooth due to caries (tooth decay), a composite resin (composite resin) for filling and repairing a tooth defect caused by caries (tooth decay), etc. resin), composite resin materials such as bonding materials, and adhesive materials such as resin cement used when artificial crowns are installed on natural teeth, and resin compositions A dental material and a dental composition having a main component are put into practical use, and the resin composition is obtained by using a radically polymerizable compound (hereinafter referred to as a polymerizable compound) such as a (meth)acrylate compound. [0003] Currently, in order to obtain sufficient adhesive force of dental adhesive materials to dentin, it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/09C08F220/58A61K6/083A61K6/838
CPCC07F9/12A61K6/0023A61K6/0017C08F220/60A61K6/083A61K6/033A61K6/20A61K6/30A61K6/838A61K6/887C08L33/00C07F9/09
Inventor 高木正利大辻淳夫长友昭宪末杉幸治
Owner MITSUI CHEM INC
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