KGK 共同技研化学 List of Products and Services

We will exhibit the following products at the 39th Nepcon Japan from January 22 to January 24 (Tokyo Big Sight): 1. Electroless plating "Metapian" 2. Metapian + LCP 3. Heat-resistant molecular gradient film "200Y" and heat-resistant adhesive film "SB Sheet" 4. Dicing tape "RMGU" 5. Back grind tape "214D" 6. Tape for die bonding and assembly process "170 Series"

• Parts and Materials

●What is Metapian? A high-performance electroless plating primer solution that excels in long-term stability without the use of dispersants. It enables uniform plating formation on non-conductive materials such as resins and ceramics.

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After bonding, it becomes tack-free due to UV secondary crosslinking. It has excellent gap absorption properties.

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High transparent double-sided tape (OCA) for flexible displays, excellent in surface conformity and bending durability!

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●Features 1. Excellent followability and adhesive properties are achieved for three-dimensional deformation and stretchable materials. 2. Demonstrates good adhesion performance not only to metal but also to various resins. 3. Provides sharp edge definition with minimal burrs for punching ultra-fine and ultra-small shapes in the micrometer range. 4. Exhibits high holding power even at elevated temperatures. 5. Has chemical resistance to acids and alkalis.

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Polyarnol is an amorphous film composed of divalent phenol, phthalic acid, and carboxylic acid.

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■Features 1. Based on acrylic resin, it has heat resistance and insulation properties. 2. No tack at room temperature, making it easy to handle. 3. High tack develops upon heating, allowing for adhesion. 4. Flexible and stretchable, capable of conforming to uneven surfaces.

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Medical hydrogel with micro-adhesion that excels in repeated use and re-stickability. It has excellent shock absorption and conductivity, and is gentle on the skin.

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This is an adhesive sheet that adds functionality according to the required performance for various display materials. It maintains high transparency while providing sufficient light diffusion effects. The haze can be adjusted from 25% to over 90% according to your needs. Haze can be customized to meet your requirements. Therefore, it is possible to further enhance the quality and functionality of the display.

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KGK LCP "SARAS" is a harmony film characterized by "rigidity like metal and softness like rubber." By using it as a diaphragm for acoustic components, it can reproduce a dense and dynamic sound, while also delivering high sensitivity, low distortion, and a high-quality sound without any peculiarities.

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High transparency, highly reliable silicone resin-based adhesive gel sheet. Optically excellent double-sided tape for shock absorption and relief, heat resistance, reliability, and prevention of metal film corrosion.

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【Product】 SAR25C12 *This is a material coated with liquid crystal polymer on copper foil. The liquid crystal polymer film flexible copper-clad laminate "SAR25C12" is an innovative product that leverages its excellent compatibility with copper foil for insulation film applications in flexible printed circuits (FPC).

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"LMGU" has developed a product using the UV-CIPG method, which involves applying a liquid gasket to the work surface and curing it with ultraviolet light before assembly, allowing for stable sealing functionality in a short time. The automatic application via a program and on-site curing with UV irradiation provide high flexibility, making it easy to compress and follow the distortion of the housing, resulting in excellent waterproof and dustproof performance.

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This is a UV-curable liquid optical elastomer suitable for bonding optical components such as displays.

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Curved panels, flexible displays, and OCA for 3D/2.5D displays. It excels in conforming to curves and is suitable for bonding with touch sensors, cover glass, and polarizers.

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We would like to introduce products that can be applied to the following semiconductor processes. 【Manufacturing Processes】 - Semiconductor dicing process - Semiconductor backgrinding process - Semiconductor lithography process - Semiconductor lead frame mount, wire bonding, and package molding process - Lightweight, thin, small component fixing process

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A narrow bezel bonding tape for automotive display components that applies the technology of molecular gradient film double-sided tape, which has 1.5 to 2.0 times the adhesive strength compared to conventional double-sided tape!

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This is a smoke-colored OCA (high transparency double-sided tape) that reduces light from the display and alleviates eye strain through special processing.

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Back grind tape is used to protect the circuit surface from contamination such as scratches, chipping, cracks, and contamination caused by external foreign substances during the back grinding of the wafer's backside. - Excellent adhesion to uneven wafers such as circuit surfaces - Excellent peelability

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1. Excellent scalability. 2. Low wafer contamination.

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It is a high-elasticity OCA sheet. It is a double-sided adhesive gel sheet with extremely high transparency, suitable for bonding optical products and optical components. It has the following features: (1) High elasticity (>1GPa) (2) High total light transmittance (>90%) *There are two types: UV-curable and PSA (pressure-sensitive adhesive).

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This is an optical bonding tape made of acrylic gel, adjusted for high transparency, stable reliability, and refractive index to suit optical materials.

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Exhibition Name: Joining and Bonding EXPO http://www.joining-expo.jp/ 【Exhibited Products List】 - Interlayer Science Evolution Strong Adhesive Molecular Gradient Membrane Double-Sided Tape - Amazing Shock Absorption, Strong Adhesion, Transparency Maker Ring Gel - Unique Casting Method Liquid Crystal Polymer Film "SARAS" - Instant Adhesive Tape "IAT" - Mechanical Fiber Tape - Heat Dissipation "Tathaga," Heat Storage "FREY," Heat Equalization "FOX"

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**Product** 5G LCP FCCL "SAR25C12" **What is SAR25C12** As the frequency increases, the amount of information that can be transmitted per unit time can be accelerated and made more voluminous. For next-generation high-speed communication, it is effective that the dielectric loss decreases as the dielectric constant and loss tangent of the FPC materials become smaller. In addition to these excellent electrical properties such as low dielectric constant and low loss tangent, LCP, which also has low moisture absorption, heat resistance, and a coefficient of linear thermal expansion comparable to metals, is an essential resin material for next-generation high-speed communication. The liquid crystal polymer film flexible copper-clad laminate "SAR25C12" is a groundbreaking product that leverages its excellent compatibility with copper foil for insulation film applications in flexible printed circuits (FPC). **Features of LCP** - Excellent electrical properties at high frequencies - Excellent heat resistance - Insulating substrate with thermal conductivity - Low moisture absorption (low dielectric) - Thermoformable at 250°C - Gas barrier properties - Anisotropic *For more details, please refer to the PDF document or feel free to contact us.*

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The adhesive design of our unique product series "Molecular Gradient Membrane Double-Sided Tape" is applied to an acrylic foam substrate. It has strong bonding strength, high waterproofing properties, chemical resistance, and oil resistance.

• Reinforcement and repair materials
• Waterproofing Agent
• Waterproof tape, adhesive, drain, protective panel

This is a comprehensive catalog primarily focused on residential equipment, home appliances, electronic devices, automobiles, and transportation equipment.

• Reinforcement and repair materials
• Waterproof tape, adhesive, drain, protective panel
• glue

- It is an adhesive composition with low contamination for bonded materials. - It is a solvent-free acrylic adhesive, making it environmentally friendly. - It can be easily cut by hand. - It has been proven to have weather resistance and storage stability with acrylic-based materials. - It is made of soft polyolefin material, so it does not damage the adhered surface.

• Civil Engineering Sheet
• glue
• Waterproof tape, adhesive, drain, protective panel

This is a self-adhesive tape that can bond due to the surface and back side's unevenness and the interaction with chemicals.

• Subsidiary materials
• Packaging materials
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The structure of the Q sound sheet (Makringel/Aluminum/Makringel) demonstrates a wide range and high sound absorption effect.

• Earthquake-proof and vibration-damping equipment
• Soundproofing Sheet
• Other wall materials

This is an insulation sheet made by bonding a vacuum insulation panel and a heat storage sheet. It is expected to insulate the outside air and maintain the internal temperature through heat storage.

• Subsidiary materials
• Heat shielding sheet
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Ethylene-vinyl acetate (EVA) sheets are environmentally friendly materials made from a copolymer of ethylene (E) and vinyl acetate (VA). They are a type of plastic that excels in flexibility, rubber elasticity, and low-temperature properties, remaining flexible down to -50°C. Additionally, they have excellent weather resistance and are highly resistant to stress cracking, water, and ultraviolet rays, making them outstanding materials. Our EVA products are used as films to bond and protect photovoltaic cells used in solar panels, adhering glass and back protective sheets (back sheets). Due to their strength against water and ultraviolet rays, they are ideal materials for adhesive sealing films used in solar cells deployed outdoors.

• Reinforcement and repair materials
• Solar power generation
• Waterproof sheet

KGK Co., Ltd. has developed a double-sided tape that strongly adheres to silicone rubber using its proprietary "molecular gradient membrane" technology, which was not achievable with conventional double-sided tapes. One side (silicone-based adhesive): Utilizes a silicone-based adhesive that adheres well to silicone rubber. Other side (acrylic-based adhesive): An acrylic-based adhesive that exhibits excellent adhesion to substrates such as metal and plastic sheets.

• Reinforcement and repair materials
• Waterproof, moisture-proof, explosion-proof lighting fixtures
• Waterproofing Agent

【Features】 - Excellent heat resistance, electrical insulation, chemical resistance, and weather resistance. - Usable in environments up to 250°C. - Maintains stable adhesive properties even at high temperatures due to heat-resistant acrylic adhesive. - Ideal for fixing components at high temperatures.

• Reinforcement and repair materials
• Organic EL light source
• Solar power generation equipment

【Features】 - Excellent heat resistance, electrical insulation, chemical resistance, and weather resistance. - Usable in environments up to 250°C. - Double-sided tape with silicone-based adhesive, making it less likely to leave residue. - Ideal for securing components and temporary bonding at high temperatures.

• Reinforcement and repair materials
• Heat exchanger
• Organic EL light source

Exhibition Name: 12th International Car Electronics Technology Exhibition https://www.car-ele.jp/ja-jp.html 【Exhibited Products List】 - Insulating film for 5GFPC FCCL LCP Liquid Crystal Polymer Film "SARAS"

• others

This is a comprehensive catalog primarily focused on home appliances, electronic devices, automobiles, and transportation equipment.

• glue
• Heat shielding sheet
• Subsidiary materials

This is a comprehensive catalog primarily focused on building materials.

• Engineered Flooring
• Interior construction
• glue

KGK has developed functional acrylic waterproof airtight tape and airtight sealing materials based on EPDM foam, as well as tearable aluminum tape, drawing on insights gained from waterproof tape for window frames as building materials for energy-efficient homes.

• Waterproof tape, adhesive, drain, protective panel
• Subsidiary materials
• Residential interior systems

This is a waterproof tape used for sashes. It is a tape that prevents water leakage even when screws penetrate. It has excellent weather resistance.

• Security glass and sashes
• Window and shutter openings
• Waterproof tape, adhesive, drain, protective panel

This is a one-sided tape made of EPDM foam material. It demonstrates excellent performance not only on metals but also on various resins. Due to its special structure (patented), it has excellent tear resistance.

• Window and shutter openings
• Rubber sheet
• Security glass and sashes

- This is a composite tape that combines a substrate of non-combustible aluminum foil with a film that has been treated to provide tearability. - It is a product that excels in thermal conductivity and tearability. - It uses an adhesive that has excellent durability and weather resistance, maintaining its performance over the long term. - Free of toluene.

• Waterproof tape, adhesive, drain, protective panel
• Renovation and repair methods
• Reinforcement and repair materials

- Super Poly Cross uses a durable and weather-resistant adhesive that maintains its performance over the long term. - The base material used is strong and has good tear resistance. - It has excellent adhesion to various substrates and possesses moderate fluidity in the adhesive layer, allowing it to bond strongly even to rough surfaces. - It exhibits excellent adhesive performance even at low temperatures. - It is an approved product recommended by the NYG Association (VHW). - Toluene-free.

• panel
• Waterproof tape, adhesive, drain, protective panel
• Reinforcement and repair materials

It is a tape that is flexible, does not stretch, and can be cut straight.

• Other flooring materials
• Waterproof sheet
• Subsidiary materials

This is a standard double-sided tape with basic adhesive performance. It demonstrates good performance not only on metals but also on various resins. It has excellent rebound resistance.

• Interior wall decoration
• Hook
• Subsidiary materials

This is a standard double-sided tape with basic adhesive performance on foam substrates. It demonstrates good performance not only on metals but also on various resins. It excels in rough surface adhesion, holding power, and waterproofing.

• Waterproof tape, adhesive, drain, protective panel
• Hook
• Subsidiary materials