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Dental material, dental material composition, dental repair material, and cured product

A technology for dental materials and restorative materials, used in dentistry, dental preparations, dental prostheses, etc., can solve problems such as complicated synthesis, and achieve the effects of reducing secondary caries, excellent aesthetics, and ensuring transparency

Active Publication Date: 2014-01-01
MITSUI CHEM INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of this material is cumbersome, leaving problems for industrial fabrication
In addition, there are problems from the viewpoint of the mechanical strength of the cured product

Method used

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  • Dental material, dental material composition, dental repair material, and cured product
  • Dental material, dental material composition, dental repair material, and cured product
  • Dental material, dental material composition, dental repair material, and cured product

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0233] Add 111.1 g (0.5 moles) of 3-phenoxy-2-hydroxypropyl acrylate and 0.11 g of dibutyltin dilaurate (relative to hydroxyl-containing ( The weight of the meth)acrylic compound is 1000ppm), and the temperature is raised to 60°C. Next, when 65.6 g (0.25 mol) of diisocyanatocyclohexylmethane (hydrogenated MDI) was dripped over 0.5 hour, reaction temperature rose to 80 degreeC. After dripping all, reaction temperature was maintained at 80-90 degreeC, and reaction was performed for 10 hours. When the weight % of the hydrogenated MDI in the reaction product was measured, it was 0.00 weight%.

[0234] The product was discharged from the reactor to obtain 170 g of dental materials containing a urethane (meth)acrylic compound represented by the following formula.

[0235]

manufacture example 2～14

[0237] Using the hydroxyl group-containing (meth)acrylic compound and diisocyanate shown in Table 11 instead of 3-phenoxy-2-hydroxypropyl acrylate and hydrogenated MDI described in Production Example 1, the same procedure as in Production Example 1 was carried out. Synthetic manipulations to obtain dental materials comprising various urethane (meth)acrylic compounds.

[0238] [Table 11]

[0239]

manufacture example 15

[0241] 14.4 g (0.2 mol) of acrylic acid and 0.5 g (1.7 mmol) of tetrabutylammonium bromide as a catalyst were added to a 300 ml four-necked bottle equipped with a stirring blade, a thermometer, and a reflux tube, and the temperature was raised to 60°C. Then, 55.3 g (0.2 mol) of 4-nonylphenyl glycidyl ether was dripped over 0.7 hours, and the reaction temperature rose to 65 degreeC. After dripping all, reaction temperature was maintained at 90-100 degreeC, and reaction was performed for 12 hours. After the reaction, the reaction solution was cooled to room temperature, and 200 ml of toluene was added. The obtained toluene solution was transferred to a 500 ml separatory funnel, and washed with distilled water until the pH of the aqueous layer reached neutrality. After washing with water, toluene was distilled off from the toluene layer with an evaporator to obtain 60.6 g of 2-hydroxy-3-(4-nonylphenoxy)propyl acrylate (yield 87%).

[0242] Add 52.3 g (0.15 mol) of 2-hydroxy-3-(...

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Abstract

The present invention provides a dental material, a dental material composition and a dental restorative material that exhibit small polymerization shrinkage particularly during curing and are producible at low cost on the industrial scale. The dental material of the present invention includes a specific urethane (meth)acrylic compound represented by Formula (1) described below.

Description

technical field [0001] The present invention relates to a novel dental material, a dental material composition, a dental restorative material and a cured product obtained by curing the dental material. Specifically, the present invention relates to a dental material containing a novel urethane (meth)acrylic compound, and a dental material composition comprising the dental material. Background technique [0002] Conventionally, radically polymerizable monomers represented by (meth)acrylates have been widely used in various fields such as coatings, printing plates, optical materials, and dental materials, taking advantage of their good curability and transparency. [0003] Among them, in the field of dental materials, it is widely used in dental restoration materials such as dental composite resins used in the restoration of caries and fractures of natural teeth, and various dental adhesives for bonding dental composite resins to teeth. Agents, as well as artificial teeth, de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/00A61K6/083C07C271/08C07C271/24C07C271/28C07C271/34C07C271/36C07C271/38C08F20/36C08F220/36A61K6/893
CPCC07C2103/66A61K6/083C07C2101/14A61K6/09C07C271/28C07C271/32C07C271/24C07C2601/14C07C2603/66A61K6/893A61K6/887C08L75/16
Inventor 成濑洋田边良满高后修宫里将敬上木秀幸井波智鹤宫田俊介
Owner MITSUI CHEM INC
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