Polymerizable Composition Manufacturing for Antibacterial Cured Products

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Solution Overview

Problem

Conventional polymerizable compositions face challenges in maintaining the appearance and strength of cured products while imparting antibacterial and antiviral properties, often resulting in deteriorated appearance and reduced workability due to the difficulty in uniformly distributing solid monomers within liquid monomers without a solvent.

Innovation Solution

A method involving dissolving a second polymerizable monomer in a solvent and mixing it with a first liquid polymerizable monomer, which improves the uniform distribution and stability of the monomers, enhancing the appearance and strength of the cured product while imparting antibacterial and antiviral properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a solid polymerizable monomer is directly mixed with a liquid polymerizable monomer without using a solvent, then the manufacturing process is simpler, but the uniform distribution of monomers is poor resulting in deteriorated appearance of the cured product

Engineering Contradiction:

Improvemanufacturing process simplicityVSAvoiduniform distribution of monomers

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent uses a solvent as an intermediary substance to dissolve the solid polymerizable monomer before mixing with the liquid monomer. This intermediary approach enables uniform distribution of the solid monomer throughout the composition, resolving the distribution problem while maintaining manufacturing simplicity through the dissolution step.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical state parameters of the solid monomer by dissolving it in a solvent, transforming it from a solid phase to a solution phase. This parameter change enables homogeneous mixing with the liquid monomer, improving uniform distribution without requiring complex mixing procedures.

Inventive Principle:

Principle #35Parameter changes

2Quantity of substance

If a solid polymerizable monomer is directly mixed with a liquid polymerizable monomer without using a solvent, then fewer materials are used, but the appearance and strength of the cured product deteriorate

Engineering Contradiction:

Improvenumber of materials usedVSAvoidstrength of cured product

Core Design Contradiction:

Quantity of substanceVSStrength

Solution Approach 1:

The solvent acts as a mediating substance that enables proper integration of the solid monomer into the liquid monomer matrix. This intermediary role ensures homogeneous distribution and proper curing, resulting in cured products with improved strength and appearance despite the additional material used.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a composite system where the solvent, solid monomer, and liquid monomer form a homogeneous mixture. This composite approach ensures that all components are properly integrated, leading to cured products with enhanced mechanical properties and appearance.

Inventive Principle:

Principle #40Composite materials

3Adaptability or versatility

If functional monomers are added to impart antibacterial properties, then the functionality of the cured product is improved, but the appearance may deteriorate due to poor distribution

Engineering Contradiction:

Improveantibacterial functionalityVSAvoiduniform distribution of functional monomers

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The solvent serves as an intermediary that dissolves the solid functional monomer containing antibacterial groups. This dissolution process ensures uniform distribution of the functional monomer throughout the polymerizable composition, maintaining both the antibacterial functionality and the appearance quality of the cured product.

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach ensures improved appearance, strength, and long-lasting antibacterial and antiviral properties of the cured products, as demonstrated in dental composite resins and other applications, by effectively integrating functional monomers into the polymerizable composition.

Implementation Method 1

a solution, that a second polymerizable monomer is dissolved in a first solvent, is dispersed in a first polymerizable monomer

Methodology Applied

Scientific EffectDissolution: Solvation

Data Source

PatentUS20230312768A1Method of manufacturing polymerizable composition, polymerizable composition, and cured product

Publication Date: 2023.10.05 GC CORP

AI summary

A method of manufacturing a polymerizable composition is capable of imparting antibacterial properties and the like to a cured product of polymerizable composition without deteriorating an appearance of the cured product of the polymerizable composition. The method of manufacturing a polymerizable monomer wherein a solution, that a second polymerizable monomer is dissolved in a first solvent, is dispersed in a first polymerizable monomer, includes mixing the first polymerizable monomer, the second polymerizable monomer, and the first solvent. The first polymerizable monomer is a liquid, and the second polymerizable monomer is a solid.