Transparent Antenna Laminate Resin to Prevent Conductor Wrinkling
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Solution Overview
Problem
Transparent antennas often develop wrinkles when a resin composition cures in contact with a conductive member, which is undesirable for maintaining the integrity and functionality of the laminate.
Innovation Solution
A resin composition comprising an elastomer, a polymerizable compound, and a polymerization initiator, which upon thermal treatment at 120°C for 30 minutes, forms a cured product with a tensile elastic modulus of 50 MPa or more, thereby suppressing wrinkles and ensuring excellent dielectric properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the resin composition is cured in contact with the conductive member, then the laminate structure is formed, but wrinkles occur in the conductive member
Solution Approach 1:
The patent adjusts the gel fraction parameter of the cured product to a specific range (30-90%) to optimize the balance between adhesion and dimensional stability. This parameter change prevents excessive shrinkage during curing that causes wrinkles, while maintaining sufficient adhesion to the conductive member. The gel fraction control is achieved through selective polymerization conditions and resin composition formulation.
Solution Approach 2:
The patent employs a composite resin system combining multiple polymer components with complementary properties. The composite structure includes polymers with different glass transition temperatures and mechanical properties, creating a material that simultaneously provides adequate adhesion to the conductive member and controlled shrinkage behavior to prevent wrinkle formation during curing.
2Strength
If the resin composition provides strong adhesion to the conductive member, then the laminate bonding is improved, but the conductive member may deform or wrinkle during curing
Solution Approach 1:
The patent optimizes the gel fraction parameter within a specific range (30-90%) to balance adhesion strength and dimensional stability. This parameter control ensures sufficient bonding to the conductive member while limiting excessive shrinkage forces that would cause deformation or wrinkling during the curing process.
Solution Approach 2:
The resin composition is designed to provide differentiated properties: sufficient adhesion at the interface with the conductive member, while maintaining controlled bulk shrinkage characteristics. This local quality differentiation allows strong bonding without transmitting excessive stress to the conductive member that would cause deformation.
3Strength
If the resin composition is cured at high temperature to improve crosslinking, then the mechanical strength increases, but the wrinkle formation in conductive member worsens
Solution Approach 1:
The patent optimizes the gel fraction and compositional parameters to achieve adequate crosslinking density without requiring excessive curing temperature. This parameter optimization allows the resin to develop sufficient mechanical strength while controlling the thermal expansion and shrinkage behavior during curing, thereby preventing wrinkle formation in the conductive member.
4Reliability
If the resin composition achieves low dielectric constant for high-frequency communication, then the electrical performance is improved, but the mechanical adhesion to conductive member may be reduced
Solution Approach 1:
The patent employs a composite resin system where low-dielectric polymers (such as fluorinated polymers or cyclic olefin polymers) are combined with adhesion-promoting components. This composite formulation achieves the low dielectric constant required for high-frequency band communication while maintaining sufficient adhesion to the conductive member through carefully selected polymer interactions and interface chemistry.
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
The resin composition effectively prevents wrinkles in the conductive member while providing a cured product with low dielectric constant and dissipation factor, suitable for high-frequency-band communication.
Implementation Method 1
a polymerization initiator; in which a cured product having a tensile elastic modulus of 50 MPa or more is provided when the resin composition is subjected to a thermal treatment at 120° C. for 30 minutes
Implementation Method 2
an elastomer; capable of suppressing occurrence of wrinkles in a conductive member when the resin composition is cured in a state where the resin composition is in contact with the conductive member
Implementation Method 3
when the resin composition is subjected to a thermal treatment at 120° C. for 30 minutes
Data Source
AI summary
A resin composition contains an elastomer; a polymerizable compound; and a polymerization initiator, in which a cured product having a tensile elastic modulus of 50 MPa or more is provided when the resin composition is subjected to a thermal treatment at 120° C. for 30 minutes. A laminate has a base material film; and a transparent resin layer disposed on the base material film, in which the transparent resin layer contains at least one selected from the group consisting of the resin composition and a cured product thereof. A transparent antenna 110 has a transparent base material; a conductive member disposed on the transparent base material; and a covering member disposed on the conductive member, in which at least one selected from the group consisting of the transparent base material and the covering member contains a cured product of the resin composition.