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Ageing-resistant self-solidifying denture base resin and preparation method thereof

A self-curing base resin, anti-aging technology, applied in the field of medical dentistry, can solve problems such as restricting product development, mechanical properties decline, color changes, etc., to achieve good heat dissipation, reduce oxygen partial pressure, and high mechanical strength.

Inactive Publication Date: 2016-08-31
CHONGQING RENHAO MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the use of the self-curing base resin, it was found that it began to age within a few days after the completion of the production, the color changed significantly, and the mechanical properties declined rapidly.
Because of such shortcomings, the development of products has been restricted

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An anti-aging self-curing base resin is composed of the following components in parts by weight: 25 parts of A, 36 parts of B and 40 parts of C.

[0034] A consists of the following components in parts by weight: 60 parts of self-setting base resin powder, 39 parts of self-setting base resin liquid and 1 part of benzoyl peroxide with a particle size of 150-160 μm. The self-curing base resin powder is composed of the following components in parts by weight: 97.70 parts of polymethyl methacrylate-methacrylic acid copolymer, 0.52 part of cerium sulfide red, 0.52 part of red polyvinyl acetate fiber and 0.26 part of titanium yellow. The self-curing base resin solution is composed of the following components in parts by weight: 96.00 parts of methyl methacrylate, 2.00 parts of N,N-dimethyl-p-toluidine, 0.5 parts of N,N-dihydroxypropyl-p-toluidine Aniline, 0.5 parts of N,N-dihydroxyethyl-p-toluidine, 0.3 parts of 2,6-di-tert-butyl-p-cresol, 0.4 parts of 2,4-dimethyl-6-tert-but...

Embodiment 2

[0057] An anti-aging self-curing base resin is composed of the following components in parts by weight: 33 parts of A, 30 parts of B and 32 parts of C.

[0058] A is composed of the following components in parts by weight: 55 parts of self-setting base resin powder, 35 parts of self-setting base resin solution and 0.5 part of benzoyl peroxide with a particle size of 150-160 μm. The self-curing base resin powder is composed of the following components in parts by weight: 97.00 parts of polymethyl methacrylate-butyl acrylate copolymer, 0.50 part of cerium sulfide red, 0.45 part of red polyvinyl acetate fiber and 0.05 part of titanium yellow. The self-curing base resin solution is composed of the following components in parts by weight: 95.00 parts of methyl methacrylate, 3.00 parts of N,N-dimethyl-p-toluidine, 2.0 parts of 2,6-di-tert-butyl-p-toluidine Phenol, 0.60 parts of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, 0.20 parts of 2-hydroxy-4-n-octyloxybenzid...

Embodiment 3

[0082] An anti-aging self-curing base resin is composed of the following components in parts by weight: 28 parts of A, 33 parts of B and 36 parts of C.

[0083] A is composed of the following components in parts by weight: 60 parts of self-setting base resin powder, 45 parts of self-setting base resin liquid and 0.8 part of benzoyl peroxide with a particle size of 150-160 μm. The self-curing base resin powder is composed of the following parts by weight: 99.00 parts of methyl methacrylate-ethyl acrylate-methyl acrylate terpolymer, 1.50 parts of cerium sulfide red, 1.35 parts of red polyvinyl acetate fiber and 0.15 parts of titanium yellow. The self-curing base resin solution is composed of the following components in parts by weight: 97.00 parts of methyl methacrylate, 2.00 parts of N,N-dihydroxypropyl-p-toluidine, 0.5 parts of 2,4-dimethyl-6 - tert-butyl-p-cresol, 0.312 parts of 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, 0.134 parts of 2-hydroxy-4-n- Oc...

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Abstract

The invention discloses ageing-resistant self-solidifying denture base resin. The self-solidifying denture base resin comprises, by weight, 25-33 parts of A, 30-36 parts of B and 32-40 parts of C. The A comprises, by weight, 0.5-1 part of benzoyl peroxide with the grain diameter of 150-160 micrometers, 55-65 parts of self-solidifying denture base resin powder and 35-45 parts of self-solidifying denture base resin liquid. The B comprises, by weight, 0.5-1 part of benzoyl peroxide with the grain diameter of 161-180 micrometers, 55-65 parts of self-solidifying denture base resin powder and 35-45 parts of self-solidifying denture base resin liquid. The C comprises, by weight, 0.5-1 part of benzoyl peroxide with the grain diameter of 181-212 micrometers, 55-65 parts of self-solidifying denture base resin powder and 35-45 parts of self-solidifying denture base resin liquid. The ageing-resistant self-solidifying denture base resin has the advantages that ageing resistance, color stability and mechanical strength of the self-solidifying denture base resin are improved; denture bases made from the self-solidifying denture base resin have higher initial mechanical strength, product stability is improved, and yield is increased.

Description

technical field [0001] The invention relates to the field of medical dentistry, in particular to an anti-aging self-curing base resin and a preparation method thereof. Background technique [0002] Room temperature chemically fixed denture base resin is also called self-setting denture base resin, self-setting base resin, or self-setting resin for short. The so-called self-curing is relative to heating and curing, which means that it can be cured at room temperature without additional heating. Since the advent of gel base resin, it has been widely used in the field of denture restoration due to its characteristics of rapid prototyping, convenient operation, and low cost. Temporary crowns and bridges, denture relining and other fields can also be used to make urgent shipments of simple dentures. [0003] However, during the use of the self-curing base resin, it was found that it began to age within a few days after the production was completed, the color changed significant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/12C08L31/04C08K13/02C08K3/22C08K5/18C08K5/13C08K5/132
CPCC08L33/12C08L2201/08C08L2205/025C08L2205/035C08L2205/16C08L31/04C08K13/02C08K2003/2241C08K5/18C08K5/13C08K5/132
Inventor 易柳香周翔君
Owner CHONGQING RENHAO MEDICAL INSTR CO LTD