KR20240037668A - Curable Composition - Google Patents

Abstract

This application provides curable compositions, thermal interface materials (TIMs), and uses thereof. In the present application, the curable composition or thermal interface material can exhibit high thermal conductivity and low adhesion to a given adherend. Additionally, in the present application, the low adhesion can be achieved without using adhesion adjusting components such as plasticizers or minimizing their use ratio. In the present application, the curable composition can also exhibit a precisely controlled curing speed and at the same time have excellent curing properties. The present application can also provide a product containing the curable composition, its cured body, or thermal interface material.

Description

Curable composition {Curable Composition}

This application relates to curable compositions, thermal interface materials (TIMs), and uses thereof.

As the number of electrical or electronic devices that require heat management, such as batteries, increases, the importance of heat dissipation materials such as TIM (Thermal Interface Material) is increasing. Various types of heat dissipation materials are known. As one of the conventional heat dissipation materials, a material in which a resin binder is filled with a heat dissipation filler is known (for example, Patent Document 1).

In the above heat dissipation materials, silicone resin, polyolefin resin, acrylic resin, or epoxy resin are usually used as resin binders.

Heat dissipation materials are basically required to have excellent thermal conductivity, and additional functions are also required depending on the application. For example, depending on the application, the heat dissipation material may be required to exhibit high thermal conductivity and low adhesion to a specific adherend.

For example, when it is necessary to replace parts in contact with the heat dissipation material within a product or when the position of the heat dissipation material needs to be changed during the process, the heat dissipation material needs to exhibit low adhesion.

Among known heat dissipation materials, those showing low adhesion include materials using silicone resin as a resin binder. However, silicone resin is relatively expensive. Additionally, because silicone resins contain components that cause contact defects when applied to electronic/electrical products, their uses are limited.

The polyurethane material also applied in Patent Document 1 can form a heat dissipation material with high thermal conductivity and has various other advantages, but it is a material that exhibits high adhesion to most adherends.

A method of lowering the adhesion of materials that exhibit high adhesion includes mixing ingredients known as so-called plasticizers. However, plasticizers mixed in large quantities to control adhesion have problems such as damaging the inherent advantages of the material itself or dissolving during use.

On the other hand, for a heat dissipating material having curability, it is necessary to control the curing speed of the heat dissipating material.

That is, when forming a heat dissipating material using a heat dissipating material having curability, a process of curing the heat dissipating material before hardening is performed after applying it to the desired location. However, even after applying the heat dissipation material, it is necessary to replace parts in contact with the heat dissipation material within the product, or it is necessary to change the position of the heat dissipation material and/or the parts, and if the heat dissipation material hardens quickly, the material Since the viscosity and hardness also increase rapidly, there is a problem in that the time during which replacement or location change is possible becomes very short.

Additionally, if the heat dissipation material hardens quickly, the time available to apply the material using dispensing equipment or injection equipment becomes shorter. Typically, in the process of applying a heat dissipation material, there may be a waiting time after loading the heat dissipation material into the dispensing equipment or injection equipment. If the hardening of the heat dissipation material occurs quickly, the waiting time can also be properly secured. does not exist.

Korean Patent Publication No. 2016-0105354

The purpose of this application is to provide a curable composition, a thermal interface material (TIM), and its use. The thermal interface material may be formed by curing the curable composition. One purpose of the present application is to ensure that the curable composition or thermal interface material exhibits high thermal conductivity and low adhesion to a given adherend. In addition, the purpose of the present application includes achieving the low adhesion without using adhesion control components such as plasticizers or minimizing their use ratio.

The present application also aims to ensure that the curable composition exhibits a precisely controlled curing speed and at the same time has excellent curing properties.

Another object of this application is to provide a product containing the curable composition, its cured body, or thermal interface material.

Among the physical properties mentioned in this specification, in cases where the measurement temperature affects the results, the physical properties are those measured at room temperature, unless otherwise specified. The term room temperature is a natural temperature that is not heated or reduced, and usually refers to a temperature in the range of about 10°C to 30°C or a temperature of about 23°C or about 25°C. Additionally, unless specifically stated otherwise in the specification, the unit of temperature is °C.

Among the physical properties mentioned in this specification, in cases where the measurement pressure affects the results, unless otherwise specified, the physical properties are those measured at normal pressure. The term atmospheric pressure refers to natural pressure that is not pressurized or decompressed, and atmospheric pressure in the range of about 700 mmHg to 800 mmHg is usually referred to as atmospheric pressure.

This application relates to a resin composition. The term resin composition refers to a composition containing a component known in the industry as a resin or a composition that does not contain a resin but includes a component that can form a resin through a curing reaction or the like. Accordingly, the scope of the term resin or resin component in this specification includes components that are generally known as resins as well as components that can form a resin through curing and/or polymerization reactions.

The resin composition may be a curable composition. The curable composition may be cured to form a thermal interface material (TIM). Therefore, in this specification, the cured body of the resin composition and the thermal interface material may refer to the same object.

When the resin composition of the present application is a curable composition, the resin composition may be a one-component or two-component composition. The term one-component composition refers to a resin composition in which the components participating in curing are physically in contact with each other, and the term two-component composition refers to a resin composition in which at least some of the components participating in curing are physically separated and divided. It may refer to the resin composition contained in the resin composition.

When the resin composition of the present application is a curable composition, the resin composition may be a room temperature curing type, a heat curing type, an energy ray curing type, and/or a moisture curing type. The term room temperature curing type refers to a resin composition in which the curing reaction can be initiated and/or progressed at room temperature, the term heat curing type refers to a resin composition in which the curing reaction can be initiated and/or progressed by the application of heat, and the term energy The term sun curing type refers to a resin composition in which the curing reaction can be initiated and/or progressed by irradiation of energy rays (e.g., ultraviolet rays or electron beams, etc.), and the term moisture curing type refers to a resin composition in which the curing reaction is initiated and/or carried out in the presence of moisture. Or refers to a resin composition that can be processed.

The resin composition of the present application may be a solvent type or a non-solvent type. When considering application efficiency or environmental load, a solvent-free formulation may be appropriate.

The resin composition of the present application may be a polyurethane composition. In this case, the resin composition may contain polyurethane or a component that can form polyurethane. For example, the thermal interface material, which is a cured product of the resin composition, may include the polyurethane. In one example, the polyurethane may be formed by the reaction of a curable component, which will be described later, and a curing agent.

The resin composition of the present application may exhibit low adhesion to a specific adherend, or may form a cured body capable of exhibiting low adhesion. This resin composition may be the polyurethane composition. Polyurethane is known as an adhesive material that can exhibit excellent adhesion to various adherends. Therefore, a method of making a polyurethane composition exhibit low adhesion to an adherend is usually a method of introducing a component that reduces adhesion, such as a plasticizer. Applying ingredients such as plasticizers can lower the adhesion of polyurethane materials, but the ingredients may lower other physical properties that could have been obtained from polyurethane, or may be leached out of the material during use of the polyurethane material. Problems may arise. However, in the present application, the low adhesion can be achieved for polyurethane materials without using or minimizing the amount of adhesion-lowering components such as plasticizers. Therefore, the present application can provide a material that takes advantage of polyurethane materials but solves the problem of high adhesion that is not required depending on the application.

The resin composition or its cured body may have an adhesive force to aluminum of 1 N/mm ² or less. In other examples, the upper limit of the adhesion of the resin composition or its cured body to aluminum is 0.9 N/mm ² , 0.8 N/mm ² , 0.7 N/mm ² , 0.6 N/mm ² , 0.5 N/mm ² , 0.4 N/ mm ² , 0.3 N/mm ² , 0.2 N/mm ² , 0.1 N/mm ² , 0.15 N/mm ² , 0.09 N/mm ² , 0.08 N/mm ² , 0.07 N/mm ² , 0.06 N/mm ² , it may be 0.04 N/mm ² or 0.03 N/mm ² . The adhesion of the resin composition or its cured body to aluminum may be below any one of the upper limits described above. In the present application, the lower limit of the adhesion to aluminum is not particularly limited. In one example, the adhesion to aluminum may be 0 N/mm ² or greater or greater than 0 N/mm ² . The resin composition may be a resin composition whose adhesion to aluminum is not substantially measurable, or may be a resin composition capable of forming a cured body whose adhesion to aluminum is not substantially measurable. Accordingly, the adhesion to aluminum may be greater than or equal to 0 N/mm ² or greater than 0 N/mm ² and less than or equal to any one of the upper limits described above. The adhesion of the resin composition or its cured body to aluminum can be measured by the method described in the Examples of this specification.

The resin composition or its cured product may have an adhesive force to polyester of 100 gf/cm or less. The upper limit of the adhesion of the resin composition or its cured product to polyester is 95 gf/cm, 90 gf/cm, 85 gf/cm, 80 gf/cm, 75 gf/cm, 70 gf/cm, 65 gf in other examples. /cm, 60 gf/cm, 55 gf/cm, 50 gf/cm, 45 gf/cm, 40 gf/cm, 35 gf/cm, 30 gf/cm, 25 gf/cm or 20 gf/cm . The adhesion of the resin composition or its cured product to polyester may be below any one of the upper limits described above. In the present application, the lower limit of the adhesion to the polyester is not particularly limited. In one example, the lower limit of the adhesion of the resin composition or its cured product to the polyester is 0 gf/cm, 2 gf/cm, 4 gf/cm, 6 gf/cm, 8 gf/cm, 10 gf/cm, It may be around 12 gf/cm, 14 gf/cm, 16 gf/cm, 18 gf/cm or 20 gf/cm. The resin composition or its cured product may not substantially exhibit adhesive force to polyester. The adhesive strength of the resin composition or its cured body to polyester may be within a range between any one of the lower limits described above and any one of the upper limits described above. The adhesion of the resin composition or its cured product to polyester can be measured by the method described in the Examples of this specification.

The resin composition or its cured body can exhibit excellent heat conduction properties. For example, the lower limit of the thermal conductivity of the resin composition or its cured body is 1.2 W/mk, 1.4 W/mK, 1.6 W/mK, 1.8 W/mK, 2.0 W/mK, 2.2 W/mK, 2.4 W/ It may be more than mK or around 2.6 W/mK. The thermal conductivity may be greater than or equal to any one of the lower limits described above. There is no particular limitation on the upper limit of the thermal conductivity. For example, the upper limit of thermal conductivity of the resin composition or its cured body is 10 W/mK, 9 W/mK, 8 W/mK, 7 W/mK, 6 W/mK, 5 W/mK, 4 W/mK. It may be around mK or 3 W/mK. The thermal conductivity may be in a range between any one of the above-described lower limits and any one of the above-described upper limits. The thermal conductivity of this resin composition or its cured body can be measured by the method disclosed in the Examples described later.

The resin composition or its cured product can also exhibit appropriate hardness. For example, if the hardness of the resin composition or its cured product is too high, problems may occur due to excessive brittle. In addition, by adjusting the hardness of the resin composition or its cured body, impact resistance and vibration resistance can be secured depending on the application, and durability of the product can be ensured. The upper limit of the hardness of the shore OO type of the resin composition or its cured body may be 150, 140, 130, 120, 110, 100, 90, 95, or 80. The Shore OO type hardness may be below any one of the upper limits described above. The lower limit of the Shore OO type hardness may be 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, or 85. The Shore OO type hardness may be greater than or equal to any one of the lower limits described above. The Shore OO type hardness may be within a range between any one of the above-described upper limits and any of the above-described lower limits. The hardness of this resin composition or its cured body can be measured by the method disclosed in the Examples described later.

The resin composition or its cured product can also exhibit appropriate flexibility. For example, the application can be greatly expanded by adjusting the flexibility of the resin composition or its cured product to a desired level. For example, the upper limit of the radius of curvature of the resin composition or its cured body may be about 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, or 8. The radius of curvature may be less than or equal to any one of the upper limits described above. The lower limit of the radius of curvature may be, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or 11. The radius of curvature may be greater than or equal to any one of the lower limits described above. The radius of curvature may be within a range between any one of the above-described upper limits and any of the above-described lower limits. The radius of curvature of this resin composition or its cured body can be measured by the method disclosed in the Examples described later, and its unit is mm.

The resin composition of the present application may be insulating. That is, the resin composition has insulating properties and/or can form a cured body having insulating properties. For example, the resin composition or its cured product has an insulation breakdown voltage measured in accordance with ASTM D149 of about 3 kV/mm or more, about 5 kV/mm or more, about 7 kV/mm or more, 10 kV/mm or more, 15 It may be more than kV/mm or more than 20 kV/mm. The higher the value, the better the insulation properties, and the upper limit is not particularly limited. However, considering the composition of the resin composition, the breakdown voltage is about 50 kV/mm or less, 45 kV/mm. mm or less, 40 kV/mm or less, 35 kV/mm or less, and 30 kV/mm or less. The above dielectric breakdown voltage can be controlled by adjusting the insulating properties of the resin composition, and can be achieved, for example, by applying an insulating filler within the resin layer. In general, among fillers, ceramic fillers are known as ingredients that can secure insulation properties.

The resin composition or its cured product may have flame retardancy. For example, the resin composition or its cured body may exhibit a V-0 rating in the UL 94 V Test (Vertical Burning Test). Accordingly, stability against fire and other accidents that may be of concern depending on the application of the resin composition can be secured.

The resin composition or its cured product may have a specific gravity of 5 or less. In other examples, the specific gravity may be 4.5 or less, 4 or less, 3.5 or less, or 3 or less. A resin layer having a specific gravity in this range is advantageous for providing lighter products. The lower limit of the above specific gravity is not particularly limited. For example, the specific gravity may be about 1.5 or more or 2 or more. In order for the resin composition or its cured body to exhibit the above specific gravity, the components added to the resin layer may be adjusted. For example, when adding a filler, a filler that can secure the desired properties (e.g., thermal conductivity) even at the lowest specific gravity, that is, a filler with a low specific gravity itself, or a filler that has been surface treated is applied. Methods, etc. may be used.

The resin composition may have a low shrinkage rate during or after curing. This can prevent peeling or voids that may occur during the application process. The shrinkage rate may be appropriately adjusted within a range that can produce the above-described effects, and may be, for example, less than 5%, less than 3%, or less than about 1%. Since the lower the shrinkage value, the more advantageous, the lower limit is not particularly limited.

The resin composition or its cured body may have a low coefficient of thermal expansion (CTE). Through this, it is possible to prevent peeling or voids that may occur during application or use. The thermal expansion coefficient may be appropriately adjusted in a range capable of producing the above-described effects, for example, less than 300 ppm/K, less than 250 ppm/K, less than 200 ppm/K, less than 150 ppm/K or about 100. It may be less than ppm/K. Since the lower the coefficient of thermal expansion, the more advantageous it is, its lower limit is not particularly limited.

The resin composition or its cured body may also have a 5% weight loss temperature of 400°C or more in thermogravimetric analysis (TGA), or a residual amount of 800°C of 70% by weight or more. Due to these characteristics, stability at high temperatures can be further improved. In other examples, the remaining amount at 800°C may be about 75% by weight or more, about 80% by weight or more, about 85% by weight or more, or about 90% by weight or more. In another example, the remaining amount at 800°C may be about 99% by weight or less. The thermogravimetric analysis (TGA) can be measured within the range of 25°C to 800°C at a temperature increase rate of 20°C/min under a nitrogen (N2) atmosphere of 60 cm ³ /min. The thermogravimetric analysis (TGA) results can also be achieved by controlling the composition of the resin composition. For example, the remaining amount at 800°C is usually influenced by the type and ratio of filler contained in the resin composition, and if an excessive amount of filler is included, the remaining amount increases.

The resin composition of the present application may contain a curable component. The term curable component refers to a component containing one or more compounds containing a functional group capable of participating in a curing reaction. In one example, the functional group that can participate in the curing reaction may be a hydroxy group. Therefore, the curable component may include a reactive compound having a hydroxy group. In the above, the reactive compound means a compound that has the hydroxy group and can participate in the curing reaction. These reactive compounds may be monomolecular, oligomeric or polymeric.

The reactive compound having the hydroxy group may be a monofunctional compound or a polyfunctional compound. The term monofunctional compound refers to the reactive compound containing one hydroxy group per molecule, and the term polyfunctional compound refers to the reactive compound containing two or more hydroxy groups per molecule.

Additionally, the reactive compound having the hydroxy group may be an oil-modified compound described later, or a non-oil-modified compound. The oil-modified compound may be the mono-functional compound or the multi-functional compound, and the non-oil-modified compound may also be the mono-functional compound or the multi-functional compound.

The multifunctional compound may be referred to as a polyol compound in this specification. The number of hydroxy groups included in the multifunctional compound (polyol compound) is not particularly limited. In one example, the lower limit of the number of hydroxy groups included in the multifunctional compound (polyol compound) may be 2 or 3 per molecule. The number of hydroxy groups included in the multifunctional compound (polyol compound) may be greater than or equal to any one of the lower limits described above. The upper limit of the number of hydroxy groups contained in the polyfunctional compound (polyol compound) may be about 10, 9, 8, 7, 6, 5, 4, 3, or 2 per molecule. . The number of hydroxy groups included in the multifunctional compound (polyol compound) may be less than or equal to any one of the upper limits described above. The number of hydroxy groups contained in the multifunctional compound (polyol compound) may be within the range of any one of the above-described lower limits and any one of the above-described upper limits. The number of hydroxy groups contained in the polyol compound can be confirmed through ¹ H NMR. The number of hydroxy groups can be confirmed based on the peak present in the 3 to 4 ppm region in ¹ H NMR.

The reactive compound may be an oil denaturing compound. The term oil-modified compound refers to a compound containing a hydroxy group and a straight-chain or branched-chain hydrocarbon group having three or more carbon atoms at the terminal. Accordingly, the reactive compound that does not contain a straight-chain or branched-chain hydrocarbon group having three or more carbon atoms at its terminal may be referred to herein as a non-oil modified compound. Whether the reactive compound contains the hydrocarbon group can be confirmed through ¹ H NMR. The presence and number of the hydrocarbon group can be confirmed based on the peak present in the 4 to 5 ppm region in ¹ H NMR. . By applying the oil-modified compound, it is possible to form a polyurethane material and secure low adhesion to a specific material while not using or minimizing the amount of adhesion-lowering components such as plasticizers.

The lower limit of the number of carbon atoms of the straight-chain or branched-chain hydrocarbon group contained at the terminal of the oil-modifying compound is 4, 5, 6, 7, 8, 9, 10, 11, and 12. , there may be about 13, 14, 15, 16, or 17. The number of carbon atoms may be greater than or equal to any one of the lower limits described above. The upper limit of the number of carbon atoms is 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37. , 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20 It could be 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, or 8. The number of carbon atoms may be less than or equal to any one of the upper limits described above. The number of carbon atoms may be within a range between any one of the above-described lower limits and any of the above-described upper limits.

The straight-chain or branched-chain hydrocarbon group may or may not contain a double bond. When a double bond is included, the double bond may be a conjugated double bond or a cis double bond.

Specific types of the hydrocarbon group include an alkyl group, an alkenyl group, or an alkynyl group. In one example, the hydrocarbon group may be connected to a polyol compound through a carbonyl group or a carbonyloxy group. In this case, the hydrocarbon group may be an alkylcarbonyl group, an alkenylcarbonyl group, an alkynylcarbonyl group, an alkylcarbonyloxy group, or an alkenyl group. It may be a carbonyloxy group or an alkynylcarbonyloxy group. In the above, the number of carbon atoms in the alkyl group, alkenyl group or alkynyl group is greater than or equal to any lower limit among the lower limits of the number of carbon atoms in the above-described straight-chain or branched-chain hydrocarbon group. Below any one of the upper limits of the number of carbon atoms or below any of the lower limits of the number of carbon atoms of the above-described straight-chain or branched-chain hydrocarbon group and of the carbon atoms of the above-described straight-chain or branched-chain hydrocarbon group It may be a range between any one of the upper limits of the number.

The alkyl group, alkenyl group, or alkynyl group may be straight chain or branched, and may be optionally substituted with one substituent. When a substituent is present, there is no particular limitation on the type of the substituent, and for example, a halogen atom such as fluorine can be exemplified as the substituent.

In one example, the hydrocarbon group may be included in a substituent of Formula 1 below.

[Formula 1]

In Formula 1, R is a straight-chain or branched hydrocarbon group.

In Formula 1, the * mark means that the corresponding portion is connected to the polyol compound. Therefore, the oxygen atom in the substituent of Formula 1 may be connected to the polyol compound.

The specific types of hydrocarbon group R in Formula 1 are as described above. Therefore, the information regarding the number, type, form, and substituent of carbon atoms of the hydrocarbon group described above can be applied in the same manner as above.

The number of hydrocarbon groups included in the reactive compound is not particularly limited. For example, the lower limit of the number of hydrocarbon groups included in the reactive compound may be 1 or 2 per molecule of the compound. The upper limit of the number of hydrocarbon groups included in the reactive compound may be about 10, 9, 8, 7, 6, 5, 4, 3, or 2 per molecule of the compound. The number of hydrocarbon groups may be greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or any of the above-described lower limits and any of the above-described upper limits. It may be in a range between one upper limit.

The oil-modifying compound may have various forms as long as it contains the hydroxy group and hydrocarbon group.

In one example, the oil-modified compound may be a compound in which at least a portion of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene, or alkyne is substituted with the hydroxy group and/or hydrocarbon group. The number of carbon atoms of the hydrocarbon compound such as an alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6. Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight-chain, branched-chain or cyclic. In addition, the hydroxy group and/or hydrocarbon group may be substituted on the same carbon atom in the alkane, alkene or alkyne, or may be substituted on a different carbon atom.

In another example, the reactive compound may be a compound having a polyester skeleton or a polyether skeleton. In this case, the reactive compound may be an oligomeric compound or a polymeric compound.

In one example, when the reactive compound having the polyester skeleton is a polyol compound, the compound is a so-called polyester polyol, and may be a polyol having a structure in which the hydrocarbon group is linked to the polyester polyol.

Additionally, when the reactive compound having the polyether skeleton is a polyol compound, the compound is a so-called polyether polyol, and may be a polyol having a structure in which the hydrocarbon group is linked to the polyether polyol.

In one example, the polyester skeleton may be a so-called polycaprolactone skeleton, and the polyether skeleton may be a so-called polyalkylene skeleton.

In one example, the polyester skeleton may be a skeleton having a repeating unit represented by the following formula (2).

[Formula 2]

In Formula 2, X ₁ and X ₂ are each independently a single bond or an oxygen atom, L ₁ may be an alkylene group or an alkylidene group, and n is an arbitrary number.

As used herein, the term single bond refers to the case where no atom exists at the corresponding site.

In Formula 2, the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, and may be straight-chain or branched. .

In Formula 2, the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, and may be straight-chain or branched. .

In this specification, an alkylene group and an alkylidene group both refer to a divalent substituent formed by removing two hydrogen atoms from an alkane. An alkylene group is a divalent substituent formed by removing the two hydrogen atoms from different carbon atoms of the alkane, and an alkylene group is a divalent substituent formed by removing the two hydrogen atoms from one carbon atom of the alkane. do.

In one example, the polyester skeleton may be a polycaprolactone skeleton. In this case, L ₁ in Formula 2 may be a linear alkylene group having 5 carbon atoms or a linear alkylidene group having 5 carbon atoms.

In Formula 2, n is an arbitrary number representing the number of repeating units. The lower limit of n may be, for example, about 1, 2, 3, 4, or 4.5, and the upper limit of n may be about 25, 20, 15, 10, or 5. The n is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any one of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The skeleton of Formula 2 may be the skeleton of so-called carboxylic acid polyol or the skeleton of caprolactone polyol. This skeleton can be formed in a known manner. For example, the skeleton of the carboxylic acid polyol can be formed by reacting a component containing a carboxylic acid and a polyol (ex. diol or triol, etc.), capro The skeleton of lactone polyol can be formed by reacting caprolactone with a component containing a polyol (ex. diol or triol, etc.). The carboxylic acid may be a dicarboxylic acid.

In the oil-modified compound having the skeleton of Formula 2, the hydroxy group or the above-mentioned hydrocarbon group may be present at the end of the skeleton of Formula 2.

In this case, the skeleton of Formula 2 may be represented by Formula 3 below.

[Formula 3]

In _{Formula 3} , _{X 1} ,

[Formula 4]

In Formula 4, X ₃ is a single bond or an oxygen atom, and R is the same as R in Formula 1 above.

In Formula _{3, when R 1 is a hydroxy group, X 1 may be a single bond} , and The other may be an oxygen atom.

The lower limit of the number of skeletons of Formula 2 or 3 in the oil-modified compound may be about 1 or 2, and the upper limit may be 10, 9, 8, 7, 6, 5, or 4. , there may be three or two. The number of skeletons is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or between any of the above-described lower limits and any of the above-described upper limits. It may be in the range between the upper limit.

The oil-modified compound having the polyester skeleton may have a straight chain or branched chain structure.

In the above, the straight chain structure is a structure in which a main chain containing the skeleton of Formula 2 or 3 is present and no other polymer chains are connected to the main chain, and the branched chain structure is a structure in which a main chain containing the skeleton of Formula 2 or 3 is present. It may also be a side chain in which a chain containing the skeleton of Formula 2 or 3 is bonded. In the branched chain structure, the number of chains containing the skeleton of Formula 2 or 3 connected as side chains is, for example, 1 to 5, 1 to 4, 1 to 3, or 1 to 2. Or it may be one.

In one example, the oil-modified compound having the polyester skeleton may be a compound in which at least a portion of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene, or alkyne is substituted with the hydroxy group and/or the skeleton of Formula 3. The number of carbon atoms of the hydrocarbon compound such as an alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6.

Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight-chain, branched-chain or cyclic. In addition, the hydroxy group and/or the skeleton of Formula 3 may be substituted for the same carbon atom in the alkane, alkene or alkyne, or may be substituted for a different carbon atom.

In one example, the polyether skeleton may be a skeleton having a repeating unit represented by the following formula (5).

[Formula 5]

In Formula 5, X ₄ and X ₅ are each independently a single bond or an oxygen atom, L ₂ may be an alkylene group or an alkylidene group, and m is an arbitrary number.

In Formula 5, the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 2 to 16 carbon atoms, 2 to 12 carbon atoms, 2 to 8 carbon atoms, or 2 to 4 carbon atoms, and may be straight-chain or branched. .

In Formula 5, the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms, and may be straight-chain or branched. .

The meanings of the alkylene group and alkylidene group are as described above.

In Formula 5, m is an arbitrary number indicating the number of repeating units, and may be, for example, a number in the range of 1 to 25.

In the oil-modified compound having the skeleton of Formula 5, the hydroxy group or the above-mentioned hydrocarbon group may be present at the end of the skeleton of Formula 5.

In this case, the skeleton of Formula 5 may be represented by Formula 6 below.

[Formula 6]

In _{Formula 6} , _{X 4} ,

[Formula 7]

In Formula 7, X ₆ is a single bond or an oxygen atom, and R is the same as R in Formula 1 above.

In Formula 6, when R ₂ is a hydroxy group, X ₄ is a single bond, and when R ₂ is a substituent in Formula 7, one of X ₄ and X ₆ is a single bond, and the other is an oxygen atom.

The oil-modified compound may contain one or more or two or more skeletons of the formula (5) or (6). The skeleton of Formula 5 or 6 may be included in the polyol compound in the amount of 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, 5 or less, 4 or less, 3 or less, or 2 or less. there is.

The polyol compound having the polyether skeleton may have a straight chain or branched chain structure.

In the above, the straight chain structure is a structure in which a main chain containing the skeleton of Formula 5 or 6 is present and no other polymer chains are connected to the main chain, and the branched chain structure is a structure in which a main chain containing the skeleton of Formula 5 or 6 is present. It may also be a side chain in which a chain containing the skeleton of Formula 5 or 6 is bonded. In the branched chain structure, the number of chains containing the skeleton of Formula 5 or 6 connected as side chains is, for example, 1 to 5, 1 to 4, 1 to 3, or 1 to 2. Or it may be one.

In one example, the oil-modified compound having a polyether skeleton may be a compound in which at least part of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene, or alkyne is substituted with a hydroxy group and/or the skeleton of Formula 5. The number of carbon atoms of the hydrocarbon compound such as an alkane, alkene or alkyne may be, for example, 1 to 20, 1 to 16, 1 to 8, or 4 to 6.

Hydrocarbon compounds such as alkanes, alkenes or alkynes may be straight-chain, branched-chain or cyclic. In addition, the hydroxy group and/or the skeleton of Formula 5 may be substituted for the same carbon atom in the alkane, alkene or alkyne, or may be substituted for a different carbon atom.

When the oil-modifying compound described above is an oligomeric or high-molecular compound, the compound may have an appropriate molecular weight.

For example, the lower limit of the weight average molecular weight of the oligomeric or polymeric oil-modifying compound is 100 g/mol, 200 g/mol, 300 g/mol, 400 g/mol, 500 g/mol, 600 g/mol, or It may be around 700 g/mol, and the upper limit may be around 3,000 g/mol, 2500 g/mol, 2000 g/mol, 1500 g/mol, 1000 g/mol or 900 g/mol. The weight average molecular weight is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any one of the above-described lower limits and any of the above-described upper limits. It may be in the range between the upper limit.

By applying the oil-modifying compound as described above, the desired physical properties can be secured more effectively.

The oil-modifying compound may be present in an appropriate ratio in the resin composition. For example, the lower limit of the proportion of the oil-modifying compound in the resin composition may be about 50% by weight, 55% by weight, 60% by weight, 65% by weight, 70% by weight, 75% by weight, 80% by weight, or 85% by weight. The upper limit may be about 95% by weight or 90% by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The content of the oil-modifying compound is the content in the one-component composition when the resin composition is a one-component type, and the content in the part in which the oil-modifying compound is present when the resin composition is a two-component composition. For example, when a two-part composition includes a physically separated main part and a curing agent part, and the oil-modifying compound is included in the main part, the content of the oil-modifying compound is based on the total weight of the main part. It may be the content. Additionally, when the resin composition includes a solvent and/or filler, the content is based on weight excluding the content of the solvent and filler.

In another example, when the resin composition includes a filler component described later, the lower limit of the weight ratio of the oil-modified compound to 100 parts by weight of the filler component is 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, and 5 parts by weight. parts, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight, or 10 parts by weight, and the upper limit is 30 parts by weight, 28 parts by weight, 26 parts by weight, 24 parts by weight, 22 parts by weight, 20 parts by weight. parts, 18 parts by weight, 16 parts by weight, 14 parts by weight, or 12 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

If the resin composition is a one-component type, the ratio of the filler component is the ratio relative to 100 parts by weight of the total filler components contained in the resin composition, and if the resin composition is a two-component type, the part (main part or hardener) containing the oil-modified polyol It is a ratio compared to 100 parts by weight of the total filler components present in the part).

The oil-modified compound can be synthesized through known synthetic methods. That is, the compounds can be produced by reacting a compound capable of introducing the hydrocarbon group corresponding to the oil modification portion with a known polyol compound or alcohol compound. In the above, the polyol compound is a compound having two or more hydroxy groups per molecule, and the alcohol compound is a compound having one hydroxy group per molecule. Examples of compounds capable of introducing a hydrocarbon group include saturated or unsaturated fatty acids, specifically butyric acid, caproic acid, and 2-ethyl hexanoic acid. , caprylic acid, isononanoic acid, capric acid, lauric acid, myristic acid, palmitic acid, stear. Examples may include stearic acid, linoleic acid, or oleic acid, but are not limited thereto.

In addition, there is no particular limitation on the type of polyol or alcohol compound that reacts with the saturated or unsaturated fatty acid. For example, an appropriate type of general reactive compound described later may be applied, but is not limited thereto.

The reactive compound having hydroxy may further include a reactive compound different from the oil denaturing compound. In this case, the reactive compound does not contain the above-mentioned hydrocarbon group, that is, a straight-chain or branched-chain hydrocarbon group having three or more carbon atoms. For convenience, these reactive compounds may be referred to herein as non-oil denatured compounds.

The non-oil modified compounds also contain one or more hydroxy groups per molecule. The lower limit of the number of hydroxy groups contained in the non-oil modified compound is 1, 2, or 3, and the upper limit is 10, 9, 8, 7, 6, 5, 4, There may be three or two. The number of hydroxy groups is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or between any of the above-described lower limits and any of the above-described upper limits. It may be in the range between the upper limit.

The non-oil modified compound may also be a monomolecular, oligomeric or polymeric compound.

Non-oil denatured compounds can take a variety of forms.

In one example, the non-oil modified compound may be polyester polyol. As the polyester polyol, for example, so-called carboxylic acid polyol or caprolactone polyol can be used.

In one example, the polyester polyol may be a skeleton having a repeating unit represented by the following formula (8).

[Formula 8]

In Formula 8, X ₇ and X ₈ are each independently a single bond or an oxygen atom, L ₃ may be an alkylene group or an alkylidene group, and p is an arbitrary number.

In Formula 8, the alkylene group may be, in one example, an alkylene group having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, and may be straight-chain or branched. .

In Formula 8, the alkylene group may be, in one example, an alkylene group having 2 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, and may be straight-chain or branched. .

When the polyester polyol is polycaprolactone polyol, L ₃ in Formula 8 may be a straight-chain alkylene group having 5 carbon atoms.

Additionally, in Formula 8, p is an arbitrary number indicating the number of repeating units, and may be, for example, a number within the range of 1 to 25.

The polyester polyol having the skeleton of Formula 8 may be so-called carboxylic acid polyol or caprolactone polyol. These polyol compounds can be formed in a known manner. For example, the carboxylic acid polyol can be formed by reacting a component containing a carboxylic acid and a polyol (ex. diol or triol, etc.), and caprolactone. Polyol can be formed by reacting caprolactone with a component containing a polyol (ex. diol or triol, etc.). The carboxylic acid may be a dicarboxylic acid.

In the polyol compound having the skeleton of Formula 8, the hydroxy group may be present at the end of the skeleton of Formula 8, or may be present in other parts of the polyester polyol.

When the non-oil modified compound includes a skeleton of Formula 8, the lower limit of the number of skeletons may be 1 or 2, and the upper limit may be 10, 9, 8, 7, 6. It could be 1, 5, 4, 3, 2, or 1. The number of skeletons is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or between any of the above-described lower limits and any of the above-described upper limits. It may be in the range between the upper limit.

The polyol compound having the polyester skeleton may have a straight chain or branched chain structure.

In the above, the straight chain structure is a structure in which a main chain including the skeleton of Formula 8 exists and no other polymer chains are connected to the main chain, and the branched chain structure is a side chain to the main chain including the skeleton of Formula 8 and also It may be in a form in which chains containing the skeleton of Formula 8 are bonded. In the branched chain structure, the number of chains containing the skeleton of Formula 8 connected as side chains is, for example, 1 to 5, 1 to 4, 1 to 3, 1 to 2, or 1. It could be a dog.

In other examples, the non-oil modified compound may be a polycaprolactone polyol unit or a polyol having an alkane diol unit, a polyol unit, and a dicarboxylic acid unit. These polyols include the polycaprolactone polyol unit alkane diol; It may be a mixture of polyols and dicarboxylic acids, or their reactants. At this time, the alkane diol is 3-methyl-1,5-pentanediol, 1,9-nonanediol, or 1,6-hexanediol ( Diol compounds having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, or 4 to 12 carbon atoms such as 1,6-hexanediol) may be exemplified. In addition, the polyol units include 3 to 10 units, 3 to 9 units, 3 to 8 units, 3 to 7 units, 3 to 6 units, 3 to 5 units, or 3 units, such as trimethylolpropane. Alkanes or polycarboys having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, or 4 to 12 carbon atoms substituted with 4 to 4 hydroxy groups may be exemplified. Additionally, the dicarboxylic acid may include adipic acid, terephthalic acid, isophthalic acid, or sebacic acid. Polyol compounds of this kind are, for example, P-510, P-1010, P-2010, P-3010, P-4010, P-5010, P-6010, F-510, F-1010, F- from Kuraray. It is known under product names such as 2010, F-3010, P-2011, P-520, P-2020, P-1012, P-2012, P-630, P-2030, P-2050 or N-2010.

As the above non-oil modified compound, a polyol having a weight average molecular weight in the range of 100 g/mol to 5,000 g/mol can be used. Through the application of these polyols, the desired effect can be achieved more effectively.

The curable component of the curable composition of the present application may be composed of any one of the above-described reactive compounds, or may be composed of a mixture of two or more of them.

In one example, the curable component may include a monofunctional compound (may be referred to as a first reactive compound) and a polyfunctional compound (may be referred to as a second reactive compound) among the above-described reactive compounds. At this time, the monofunctional compound and the multifunctional compound may each independently be the oil-modified compound or the non-oil-modified compound.

In this case, the lower limit of the weight ratio of the monofunctional compound to 100 parts by weight of the multifunctional compound is, for example, 10 parts by weight, 20 parts by weight, 30 parts by weight, 40 parts by weight, 50 parts by weight, 60 parts by weight, It may be about 70 parts by weight, 80 parts by weight, or 95 parts by weight, and the upper limit is, for example, 200 parts by weight, 190 parts by weight, 180 parts by weight, 170 parts by weight, 160 parts by weight, 150 parts by weight, 140 parts by weight, It may be about 130 parts by weight, 120 parts by weight, 110 parts by weight, or 105 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

In the above case, the curable component is the second reactive compound, which is a reactive compound having two hydroxy groups (can be called a third reactive compound) and a reactive compound having three or more hydroxy groups (can be called a fourth reactive compound) may include). The upper limit of the number of hydroxy groups contained in the fourth reactive compound may be about 10, 9, 8, 7, 6, 5, 4, or 3 per molecule. The number of hydroxy groups in the fourth reactive compound may be 3 or more and may be below any one of the upper limits described above.

In this case, the lower limit of the weight ratio of the fourth reactive compound to 100 parts by weight of the third reactive compound is, for example, 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight. parts, 7 parts by weight, 8 parts by weight, 9 parts by weight, or 10 parts by weight, and the upper limit is, for example, 20 parts by weight, 19 parts by weight, 18 parts by weight, 17 parts by weight, 16 parts by weight, 15 parts by weight. parts, 14 parts by weight, 13 parts by weight, or 12 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The first to fourth reactive compounds may each independently be the above-described oil-modified compound or a non-oil-modified compound.

In a suitable example, among the first to fourth reactive compounds, the first and third reactive compounds may be oil-modified compounds.

In this case, the fourth reactive compound may be an oil-modified compound or a non-oil-modified compound, and in an appropriate example, may be the non-oil-modified compound. The non-oil modified compounds include, for example, the polycaprolactone polyol units or alkanediol units described above; Compounds containing polyol units and dicarboxylic acid units can be used.

The resin composition may include as an additional component, for example, a curing agent that reacts with the curable component.

Various types of curing agents can be used, but in the case of a polyurethane composition that is a resin composition, polyisocyanate (may also be referred to as a polyisocyanate compound) can be used as the curing agent. The term polyisocyanate refers to a compound having two or more isocyanate groups. The lower limit of the number of isocyanate groups of the polyisocyanate may be about 2 or 3, and the upper limit may be 10, 9, 8, 7, 6, 5, 4, 3 or 2. It could be about a dog. The number of isocyanate groups may be greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or any of the above-described lower limits and any of the above-described upper limits. It may be in a range between one upper limit.

The type of polyisocyanate used as a curing agent is not particularly limited, but non-aromatic polyisocyanate that does not contain an aromatic group may be used to secure the desired physical properties.

Additionally, if necessary, as the polyisocyanate, bifunctional polyisocyanate and trifunctional or higher functional polyisocyanate may be used together. In the above, difunctional means that the compound contains two isocyanate groups, and trifunctional means that the compound contains three or more isocyanate groups.

Examples of the polyisocyanate compound include aliphatic polyisocyanates such as hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, lysine diisocyanate, methyl norbornane diisocyanate, ethylene diisocyanate, propylene diisocyanate, or tetramethylene diisocyanate; Alicyclic polyisocyanates such as transcyclohexane-1,4-diisocyanate, isophorone diisocyanate, bis(isocyanate methyl)cyclohexane diisocyanate, or dicyclohexylmethane diisocyanate; Alternatively, one or more of the above, such as carbodiimide-modified polyisocyanate or isocyanurate-modified polyisocyanate, may be used. Additionally, as the polyisocyanate, an addition reaction product of the above-described diisocyanate and a polyol (for example, trimethylolpropane, etc.) can also be used. Additionally, mixtures of two or more of the compounds listed above may be used.

The application rate of the polyisocyanate can be adjusted considering the number of hydroxy groups present in the curable component included in the resin composition and the physical properties after curing.

For example, the polyisocyanate is a resin such that the equivalent ratio (OH/NCO) of the number of hydroxy groups (OH) present in the curable component and the number of isocyanate groups (NCO) present in the polyisocyanate is within a predetermined range. Can be included in the composition.

The method for calculating the equivalence ratio (OH/NCO) is known.

For example, if the resin composition is a two-component type, the curable component is included in the main part, and the polyisocyanate is included in the curing agent part, the equivalence ratio OH/NCO can be calculated according to the following general formula 1.

[General Formula 1]

In General Formula 1, E is the equivalence ratio OH/NCO, D _m is the density of the main part, D _c is the density of the curing agent part, A is obtained according to General Formula 2 below, and B is General Formula 3 below. It is obtained according to , where D _NCO is the Dalton mass of the isocyanate group and is 42 Da, and D _OH is the Dalton mass of the hydroxy group and is 17 Da.

[General Formula 2]

In General Formula 2, W _OH is the weight ratio of the reactive compound present in the subject part, and OH _% is the ratio of hydroxy groups included in the reactive compound having the weight ratio of W _OH .

[General Formula 3]

In General Formula 3, W _NCO is the weight ratio of polyisocyanate present in the curing agent part, and NCO _% is the ratio of isocyanate groups included in the polyisocyanate having the weight ratio of W _NCO .

In the above, W _OH is the weight % (based on the total weight of the main part) of each reactive compound present in the main part, and the OH% of the compound is the % of the hydroxy group contained in 1 mole of each reactive compound, and the single reactivity It is obtained by dividing the product of the number of moles of hydroxy groups contained in the compound and the molar mass of the hydroxy group by the molar mass of the single reactive compound and then multiplying by 100.

In the above, W _NCO is the weight % (based on the total weight of the curing agent part) of each polyisocyanate present in the curing agent part, and the NCO _% of the compound is the % of the NCO group contained in 1 mole of each polyisocyanate, and is a single It is obtained by dividing the product of the number of moles of NCO groups contained in the polyisocyanate and the molar mass of the NCO group by the molar mass of the single polyisocyanate and then multiplying by 100.

In General Formula 1, Dalton mass is a constant.

The lower limit of the equivalence ratio (OH/NCO) is, for example, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220. , 230, 240, 250 or 260, with upper limits, for example, 1,000, 900, 800, 700, 600, 500, 400, 300, 290, 280, 270, 260, 250, 240, 230, 220. , 210, 200, 190, 180, 170, 160, 150, 140, 130, 120, 110 or 100. The equivalence ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The resin composition may further include a filler component. The term filler component refers to a component made of filler, that is, a component containing only filler.

In one example, the filler component may include two or more types of fillers having different average particle diameters. In one example, the filler component includes three or more types of fillers with different average particle diameters, or consists of 3 to 6 types, 3 to 5 types, 3 to 4 types, or 3 types of fillers with different average particle diameters. You can. That is, in one example, the filler component may include 3 to 6 types, 3 to 5 types, 3 to 4 types, or only 3 types of fillers having different average particle diameters.

In another example, the filler component may exhibit at least two peaks in a volume curve of particle size distribution measured using laser diffraction. In one example, the filler component may exhibit three or more peaks, or may exhibit three to six peaks, three to five peaks, three to four peaks, or three peaks in the volume curve of the particle size distribution. For example, the range of filler components showing three peaks does not include filler components showing one, two, or four or more peaks.

The average particle diameter of the filler of the present application refers to the particle diameter at which the volume accumulation is 50% in the volume curve of the particle size distribution measured by laser diffraction, and this may also be called the median diameter. That is, in the present application, the particle size distribution is obtained on a volume basis through the laser diffraction method, and the particle diameter at the point where the cumulative value is 50% in the cumulative curve with the total volume set to 100% is set as the average particle diameter, and this average particle diameter may be referred to as median particle size or D50 particle size in other examples.

Accordingly, the two types of fillers having different average particle diameters may mean fillers having different particle diameters at the point where the cumulative value is 50% in the volume curve of the particle size distribution.

In general, when two or more types of fillers with different average particle diameters are mixed to form a filler component, the volume curve of the particle size distribution measured using laser diffraction for the filler component shows as much as the type of the mixed filler. A peak appears. Therefore, for example, when a filler component is formed by mixing three types of fillers with different average particle diameters, the volume curve of the particle size distribution measured using a laser diffraction method for the filler component shows three peaks.

The filler component of the resin composition of the present application may be a thermally conductive filler component. The term thermally conductive filler component refers to a filler component that functions so that the resin composition or its cured body exhibits the above-described thermal conductivity.

In one example, the filler component may include at least a first filler having an average particle diameter of 60 μm to 200 μm, a second filler having an average particle diameter in the range of 10 μm to 30 μm, and a third filler having an average particle diameter of 5 μm or less. there is.

As another example, the first filler has an average particle diameter of about 62 μm or more, 64 μm or more, 66 μm or more, or about 68 μm or more, and/or about 195 μm or less, 190 μm or less, 185 μm or less, 180 μm or less, 175 μm or less. μm or less, 170 μm or less, 165 μm or less, 160 μm or less, 155 μm or less, 150 μm or less, 145 μm or less, 140 μm or less, 135 μm or less, 130 μm or less, 125 μm or less, about 120 μm or less, 115 μm It may be 110 μm or less, 105 μm or less, 100 μm or less, 95 μm or less, 90 μm or less, 85 μm or less, 80 μm or less, or about 75 μm or less.

As another example, the second filler has an average particle diameter of about 12 μm or more, 13 μm or more, 14 μm or more, 15 μm or more, 16 μm or more, 17 μm or more, 18 μm or more, 19 μm or more, or 20 μm or more, and/ or about 29 μm or less, 28 μm or less, 27 μm or less, 26 μm or less, 25 μm or less, 24 μm or less, 23 μm or less, 22 μm or less, 21 μm or less, or about 20 μm or less.

As another example, the third filler may have an average particle diameter of about 0.01 μm or more, 0.1 μm or more, about 0.5 μm or more, 1 μm or more, 1.5 μm or more, or 2 μm or more, and/or about 5 μm or less, 4.5 μm or less, about 4 μm or more. It may be µm or less, 3.5 µm or less, 3 µm or less, 2.5 µm or less, or 2 µm or less.

In the filler component, the ratio (D1/D3) of the average particle diameter (D1) of the first filler and the average particle diameter (D3) of the third filler may be in the range of 25 to 300.

In one example, when the filler component includes two or more types of fillers with different average particle diameters, the third filler may be a filler with the smallest average particle diameter among the fillers included in the filler component, and the first filler may be a filler whose average particle diameter is different from each other. When two or more types of fillers with different average particle diameters are included, the filler with the largest average particle diameter may be the filler included in the filler component. In this state, the particle size ratio can be satisfied.

In other examples, the ratio (D1/D3) is 26 or more, 27 or more, 28 or more, 29 or more, 30 or more, 31 or more, 32 or more, 33 or more, 34 or more, 35 or more, 40 or more, 50 or more, 60 or more. 70 or more, 80 or more, 90 or more, 100 or more, 110 or more, 120 or more, 130 or more, 140 or more, 150 or more, 160 or more, 170 or more, 180 or more, 190 or more, 200 or more, 210 or more, 220 or more, 230 or greater or within the range of 235 or greater and/or 290 or less, 280 or less, 270 or less, 260 or less, 250 or less, 240 or less, 220 or less, 200 or less, 180 or less, 160 or less, 140 or less, 120 or less, about 100 or less, It may be further adjusted within the range of 95 or less, 90 or less, 85 or less, 80 or less, about 75 or less, 70 or less, 65 or less, or about 60 or less.

In the filler component, the ratio (D1/D2) of the average particle diameter (D1) of the first filler and the average particle diameter (D2) of the second filler may be in the range of about 3 to 20. In other examples, the ratio (D1/D2) is 3.1 or more, 3.2 or more, 3.3 or more, 3.4 or more, or 3.5 or more, or 19 or less, 18 or less, 17 or less, 16 or less, 15 or less, 14 or less, 13 or less, 12 or less. , 11 or less, 10 or less, 9 or less, 8 or less, 7 or less, 6 or less, 5 or less, or 4 or less.

Fillers include, for example, aluminum oxide (alumina: Al ₂ O ₃ ), aluminum nitride (AlN), boron nitride (BN), silicon nitride (Si ₃ N ₄ ), silicon carbide (SiC), beryllium oxide (BeO), and oxide. Ceramic fillers such as zinc (ZnO), magnesium oxide (MgO), aluminum hydroxide (Al(OH) ₃ ), magnesium hydroxide (Mg(OH) ₂ ), calcium carbonate (CaCO ₃ ), and/or Boehmite. You can use it. This filler is advantageous in satisfying the thermal conductivity in the above-described range, and in addition, the above-described insulation properties can be satisfied through the application of a ceramic filler.

The upper limit of the ratio of the filler component in the resin composition is 95% by weight, 94.5% by weight, 94% by weight, 93.5% by weight, 93% by weight, 92.5% by weight, 92% by weight, 91.5% by weight, 91% by weight. , 90.5% by weight, 90.0% by weight, 89.5% by weight, or 89.0% by weight, and the lower limit is 70% by weight, 71% by weight, 72% by weight, 73% by weight, 74% by weight, about 75% by weight, 76% by weight. Weight %, 77 weight %, 78 weight %, 79 weight %, 80 weight %, 81 weight %, 82 weight %, 83 weight %, 84 weight %, 85 weight %, 86 weight %, 87 weight % or 88 weight % It may be to some extent. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The lower limit of the ratio of the filler component to the total weight of 100 parts by weight of the curable component or the reactive compound present in the curable component is 500 parts by weight, 550 parts by weight, 600 parts by weight, 650 parts by weight, 700 parts by weight, 750 parts by weight. It may be about 800 parts by weight or 850 parts by weight, and the upper limit is about 2,000 parts by weight, 1,800 parts by weight, 1,600 parts by weight, 1,400 parts by weight, 1,200 parts by weight, 1,000 parts by weight, 950 parts by weight or 900 parts by weight. You can. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The content of the filler component is a ratio based on the total weight of the resin composition when the resin composition is a one-component composition, and when the resin composition is a two-component composition, the total weight of the main part and the curing agent part of the two-component composition is It may be a ratio based on the total weight of the subject or hardener part alone.

When the resin composition is composed of a two-component composition, it may be appropriate to divide the filler component to be applied to the final cured body into substantially equal amounts and introduce them into each of the main and curing agent parts.

In addition to the thermally conductive filler, the filler component may include various types of fillers if necessary. For example, carbon fillers such as graphite, fumed silica, or clay may be used.

The resin composition may further contain necessary components in addition to the components described above.

In one example, the resin composition may further include a plasticizer. As described above, in the present application, low adhesion to a specific material can be secured without applying a plasticizer, but a small amount of plasticizer may be applied if necessary.

There are no particular restrictions on the type of plasticizer that can be applied, for example, dioctyl phthalate (DOP), dibutyl phthalate (DBP), butylbenzyl phthalate (BBP), and diisononyl phthalate. Phthalate plasticizers such as diisononyl phthalate (DINP) or polyethyleneterephthalate (PET), or adipate plasticizers such as dioctyl adipate (DOA) or diisononyl adipate (DINA). , fatty acid-based plasticizers, phosphoric acid-based plasticizers, or polyester-based plasticizers may be applied.

When a plasticizer is included, the ratio can be adjusted depending on the purpose. For example, the lower limit of the ratio of the plasticizer to 100 parts by weight of the total weight of the curable component or the reactive compound present in the curable component is 0.5 parts by weight, 1 part by weight, 1.5 parts by weight, 2 parts by weight, 2.5 parts by weight. parts, 3 parts by weight, 3.5 parts by weight, 4 parts by weight, 4.5 parts by weight, 5 parts by weight, 5.5 parts by weight, 6 parts by weight, or 6.5 parts by weight, and the upper limit is 20 parts by weight, 19 parts by weight, 18 parts by weight. It may be about 17 parts by weight, 16 parts by weight, 15 parts by weight, 14 parts by weight, 13 parts by weight, 12 parts by weight, 11 parts by weight, 10 parts by weight, 9 parts by weight, 8 parts by weight, or 7 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between. The above ratio may be changed considering the composition of the entire resin composition or the intended use.

The resin composition may include a catalyst as an additional component. The type of catalyst that can be included is not particularly limited as long as it can induce appropriate curing depending on the type of the curing component. For example, when the resin composition is a polyurethane composition and the curable component is a component that forms polyurethane, a urethane reaction catalyst can be applied as the catalyst.

As a urethane reaction catalyst, known components can be used without particular restrictions, examples of which include organic catalysts such as tertiary amines or organometallic catalysts. In terms of achieving an appropriate effect through combination with a curing speed retardant described later, an organometallic catalyst can be used as the catalyst, for example, a tin catalyst such as an organic tin catalyst can be used.

When a catalyst is included, the ratio can be adjusted depending on the purpose. For example, the lower limit of the ratio of the catalyst to the total weight of 100 parts by weight of the curable component or the reactive compound present in the curable component is 0.001 part by weight, 0.005 part by weight, 0.01 part by weight, 0.05 part by weight, 0.1 part by weight. part, 0.5 part by weight, or 0.55 part by weight, and the upper limit is 10 parts by weight, 9 parts by weight, 8 parts by weight, 7 parts by weight, 6 parts by weight, 5 parts by weight, 4 parts by weight, 3 parts by weight, 2 parts by weight. It may be about 1 part, 1 part by weight, or 0.05 part by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between. The above ratio may be changed considering the composition of the entire resin composition or the intended use.

The resin composition may contain a curing rate regulator to ensure an appropriate curing rate. In this application, the term cure rate regulator refers to a component that can delay the curing rate of the resin composition compared to the case where the component does not exist. Typically, curing of a resin composition begins when the components participating in the curing reaction are mixed under curable conditions. For example, if the resin composition is a room temperature curable type and is a two-component type containing a main part and a curing agent part, the resin composition begins to cure when the main part and the curing agent part are mixed at room temperature.

However, depending on the use of the resin composition, problems may occur if the curing speed is too fast after the start of curing as described above.

Therefore, in the present application, the curing speed regulator can be applied to ensure an appropriate curing speed when necessary. There is no particular limitation on the type of curing speed regulator applied at this time. For example, components that react competitively with the curable component and catalyst contained in the resin composition or exhibit affinity to control the curing speed may be applied.

When the resin composition is a polyurethane composition, a thiol compound or a carboxylic acid compound may be used as the curing rate control agent. As the curing speed regulator, either one of the thiol compound and the carboxylic acid compound may be used, or both may be used.

As the thiol compound, for example, a compound of the following formula (9) can be used.

[Formula 9]

In Formula 9, R ₁ may be an alkyl group, an alkoxy group, an aromatic monovalent hydrocarbon group, or -Si(R ₃ ) ₃ , R ₂ may be a single bond, an alkylene group, or an alkylidene group, and R ₃ may be a hydrogen , may be an alkyl group or an alkoxy group.

In Formula 9, the fact that R ₂ is a single bond means that R ₂ does not exist and the thiol (SH) group is directly connected to R ₁ .

The alkyl group of R ₁ or R ₃ of Formula 9 may be an alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. These alkyl groups may be straight chain, branched or cyclic. The alkyl group may be optionally substituted with one or more substituents, or may be unsubstituted. In case of substitution, examples of the substituent include a halogen atom, an alkoxy group with 1 to 4 carbon atoms, or a thiol group, but are not limited thereto.

The alkoxy group of R ₁ or R ₃ of Formula 9 may be an alkoxy group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. These alkoxy groups may be straight chain, branched, or cyclic. The alkoxy group may be optionally substituted with one or more substituents, or may be unsubstituted. In case of substitution, examples of the substituent include a halogen atom, an alkyl group with 1 to 4 carbon atoms, an alkoxy group with 1 to 4 carbon atoms, or a thiol group, but are not limited thereto.

In the above, examples of the aromatic monovalent hydrocarbon group may include an aryl group or a heteroaryl group. At this time, examples of the aryl group include phenyl group, biphenyl group, naphthyl group, anthracenyl group, phenanthryl group, pyrenyl group, phenylenyl group, chrysenyl group, or fluorenyl group, and the heteroaryl group includes T. Open group, furan group, pyrrole group, imidazole group, thiazole group, oxazole group, oxadiazole group, triazole group, pyridyl group, bipyridyl group, pyrimidyl group, triazine group, acridyl group, pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyrido pyrimidinyl group, pyrido pyrazinyl group, pyrazino pyrazinyl group, isoquinoline group, indole group, carbazole group, benzoxazole group , benzimidazole group, benzothiazole group, benzocarbazole group, benzothiophene group, dibenzothiophene group, benzofuranyl group, phenanthroline group, thiazolyl group, isoxazolyl group, oxadiazolyl group, Examples may include a thiadiazolyl group or a dibenzofuranyl group, but it is not limited thereto. This aromatic monovalent hydrocarbon group may be optionally substituted with one or more substituents, or may be unsubstituted. In case of substitution, examples of the substituent include a halogen atom, an alkyl group with 1 to 4 carbon atoms, an alkoxy group with 1 to 4 carbon atoms, or a thiol group, but are not limited thereto.

In Formula 9, the alkylene group of R ₂ may be, in one example, an alkylene group having 2 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be a straight chain or branched chain. It could be my brother. This alkylene group may be optionally substituted with one or more substituents, or may be unsubstituted. In case of substitution, examples of the substituent include a halogen atom, an alkyl group with 1 to 4 carbon atoms, an alkoxy group with 1 to 4 carbon atoms, or a thiol group, but are not limited thereto. Additionally, in some cases, at least one of the carbon atoms constituting the alkylene group may be substituted with an oxygen atom.

In one example, the alkylene group of R ₂ of Formula 9 may be an alkylene group having 1 to 20 carbon atoms, 4 to 20 carbon atoms, 4 to 16 carbon atoms, 4 to 12 carbon atoms, or 4 to 8 carbon atoms, which may be a straight chain or branched chain. It could be my brother. This alkylidene group may be optionally substituted with one or more substituents, or may be unsubstituted. In case of substitution, examples of the substituent include a halogen atom, an alkyl group with 1 to 4 carbon atoms, an alkoxy group with 1 to 4 carbon atoms, or a thiol group, but are not limited thereto. Additionally, in some cases, at least one of the carbon atoms constituting the alkylidene group may be substituted with an oxygen atom.

As the thiol compound, for example, a monofunctional compound having a hydrocarbon group can be used. The hydrocarbon group may be a substituted or unsubstituted hydrocarbon group. When the hydrocarbon group is a substituted hydrocarbon group, the type of substituent is not particularly limited, but includes, for example, halogen, an alkoxy group having 1 to 4 carbon atoms, and/or a silyl group (for example, -Si (R ₃ ) a substituent represented by ₃ ), etc. That the thiol compound is a monofunctional compound means that the compound contains one thiol group (-SH).

The hydrocarbon group of the thiol compound may be an alkyl group, alkenyl group, or alkynyl group. At this time, the alkyl group may be an alkyl group having 1 to 30 carbon atoms, 4 to 30 carbon atoms, 8 to 30 carbon atoms, 8 to 26 carbon atoms, 8 to 22 carbon atoms, 8 to 18 carbon atoms, or 8 to 14 carbon atoms, and this alkyl group may be straight chain or branched. It may be linear. The alkenyl group or alkynyl group may be an alkenyl group or an alkynyl group having 2 to 30 carbon atoms, 4 to 30 carbon atoms, 8 to 30 carbon atoms, 8 to 26 carbon atoms, 8 to 22 carbon atoms, 8 to 18 carbon atoms, or 8 to 14 carbon atoms, , this alkenyl group or alkynyl group may be straight chain or branched.

The thiol compound may be a compound in which one of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene, or alkyne is substituted with a thiol group (-SH). In this case, the alkane may be an alkane having 1 to 30 carbon atoms, 4 to 30 carbon atoms, 8 to 30 carbon atoms, 8 to 26 carbon atoms, 8 to 22 carbon atoms, 8 to 18 carbon atoms, or 8 to 14 carbon atoms, and this alkane may be a straight chain alkane. Or it may be branched. The alkene or alkyne may be an alkene or alkyne having 2 to 30 carbon atoms, 4 to 30 carbon atoms, 8 to 30 carbon atoms, 8 to 26 carbon atoms, 8 to 22 carbon atoms, 8 to 18 carbon atoms, or 8 to 14 carbon atoms, and Alkenes or alkynes can be straight or branched.

The alkane, alkene, or alkyne halogen may, if necessary, be substituted with a substituent other than the thiol group. In this case, the substituent includes an alkoxy group having 1 to 4 carbon atoms and /or a silyl group (for example, a substituent represented by -Si(R ₃ ) ₃ in Chemical Formula 9), etc. may be exemplified, but are not limited thereto.

The lower limit of the molecular weight (molar mass) of the thiol compound may be approximately 50 g/mol, 100 g/mol, 150 g/mol, or 200 g/mol, and the upper limit may be 400 g/mol, 350 g/mol, or 300 g. /mol or 250 g/mol. The molecular weight is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any one of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

There is no particular limitation on the specific type of the above thiol compound, for example, 1-dodecane thiol or (3-mercaptopropyl)triethoxy silane) It may be, etc.

When a thiol compound is included, the ratio can be adjusted depending on the purpose. For example, the lower limit of the ratio of the thiol compound to the total weight of 100 parts by weight of the curable component or the reactive compound present in the curable component is 0.001 part by weight, 0.005 part by weight, 0.01 part by weight, 0.05 part by weight, 0.1 part by weight. It may be about 10 parts by weight, 0.5 parts by weight, 1 part by weight, or 1.5 parts by weight, and the upper limit is 10 parts by weight, 9 parts by weight, 7 parts by weight, 6 parts by weight, 5 parts by weight, 4 parts by weight, 3 parts by weight. It may be about 1 part by weight, 2 parts by weight, 1 part by weight, 0.9 part by weight, 0.8 part by weight, 0.7 part by weight, 0.6 part by weight, 0.5 part by weight, 0.4 part by weight, 0.3 part by weight, or 0.2 part by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between. The above ratio may be changed considering the composition of the entire resin composition or the intended use.

When the thiol compound and the catalyst are included simultaneously in the polyurethane composition, their ratio can be controlled.

For example, the lower limit of the weight ratio (T/U) of the thiol compound (T) to the urethane reaction catalyst (U) may be 0.1, 0.5, 1, 1.5, 2, 2.5, or 3, and the upper limit may be , 6, 5.5, 5, 4.5, 4 or 3.5. The ratio (T/U) is above any one of the above-described lower limits, below any one of the above-described upper limits, or between any one of the above-described lower limits and the above-described upper limits. It may be in the range between any upper limit of .

In the above, the carboxylic acid compound may be, for example, a monofunctional compound having a hydrocarbon group. That the carboxylic acid compound is a monofunctional compound means that the compound contains one carboxyl group (-COOH).

The hydrocarbon group of the carboxylic acid compound may be an alkyl group, alkenyl group, or alkynyl group. At this time, the alkyl group has 1 to 30 carbon atoms, 1 to 26 carbon atoms, 1 to 22 carbon atoms, 1 to 18 carbon atoms, 1 to 14 carbon atoms, 1 to 10 carbon atoms, 1 to 6 carbon atoms, 1 to 4 carbon atoms, 4 to 30 carbon atoms, and It may be an alkyl group having 5 to 30 carbon atoms, 5 to 26 carbon atoms, 5 to 22 carbon atoms, 5 to 18 carbon atoms, 5 to 14 carbon atoms, or 5 to 10 carbon atoms, and this alkyl group may be straight chain or branched. The alkenyl group or alkynyl group is an alkenyl group having 2 to 30 carbon atoms, 4 to 30 carbon atoms, 5 to 30 carbon atoms, 5 to 26 carbon atoms, 5 to 22 carbon atoms, 5 to 18 carbon atoms, 5 to 14 carbon atoms, or 5 to 10 carbon atoms, or It may be an alkynyl group, and this alkenyl group or alkynyl group may be straight chain or branched.

The carboxylic acid compound may be a compound in which one of the hydrogen atoms of a hydrocarbon compound such as an alkane, alkene, or alkyne is substituted with a carboxyl group (-COOH). In this case, the alkane has 1 to 30 carbon atoms, 1 to 26 carbon atoms, 1 to 22 carbon atoms, 1 to 18 carbon atoms, 1 to 14 carbon atoms, 1 to 10 carbon atoms, 1 to 6 carbon atoms, 1 to 4 carbon atoms, and 4 to 30 carbon atoms. , may be an alkane having 5 to 30 carbon atoms, 5 to 26 carbon atoms, 5 to 22 carbon atoms, 5 to 18 carbon atoms, 5 to 14 carbon atoms, or 5 to 10 carbon atoms, and the alkane may be straight chain or branched. The alkene or alkyne is an alkene or alkyne having 2 to 30 carbon atoms, 4 to 30 carbon atoms, 5 to 30 carbon atoms, 5 to 26 carbon atoms, 5 to 22 carbon atoms, 5 to 18 carbon atoms, 5 to 14 carbon atoms, or 5 to 10 carbon atoms. may be, and the alkene or alkyne may be straight chain or branched.

The lower limit of the molecular weight (molar mass) of the carboxylic acid compound may be about 50 g/mol, 70 g/mol, 90 g/mol, 110 g/mol, 130 g/mol, or 140 g/mol, and the upper limit is 400 g. /mol, 350 g/mol, 300 g/mol, 250 g/mol, 200 g/mol, 150 g/mol or 100 g/mol. The molecular weight is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any one of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

As the carboxylic acid compound, a compound having a pKa within a predetermined range can be used. The lower limit of the pKa of the compound may be around 2, 2.5, 3, 3.5, 4, or 4.5, and the upper limit may be around 9, 8.5, 8, 7.5, 7, 6.5, 6, 5.5, or 5. The pKa is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between. The above ratio may be changed considering the composition of the entire resin composition or the intended use.

There is no particular limitation on the specific type of the carboxylic acid compound, for example, acetic acid, stearic acid, 2-ethylhexanoic acid, isononanoic acid, or oleic acid. (oleic acid), etc.

When a carboxylic acid compound is included, the ratio can be adjusted depending on the purpose. For example, the lower limit of the ratio of the carboxylic acid compound to the total weight of 100 parts by weight of the curable component or the reactive compound present in the curable component is 0.001 part by weight, 0.005 part by weight, 0.01 part by weight, 0.05 part by weight, 0.1. It may be about 1 part by weight, 0.5 part by weight, or 1 part by weight, and the upper limit is 10 parts by weight, 9 parts by weight, 8 parts by weight, 7 parts by weight, 6 parts by weight, 5 parts by weight, 4 parts by weight, 3 parts by weight, 2 parts by weight. It may be about 1 part by weight, 0.9 part by weight, 0.8 part by weight, 0.7 part by weight, 0.6 part by weight, 0.5 part by weight, 0.4 part by weight, 0.3 part by weight, or 0.2 part by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between. The above ratio may be changed considering the composition of the entire resin composition or the intended use.

When the carboxylic acid compound and the catalyst are included simultaneously in the polyurethane composition, their ratio can be controlled.

For example, the lower limit of the weight ratio (C/U) of the carboxylic acid compound (C) to the urethane reaction catalyst (U) may be 0.1, 0.5, 1, 1.5, or 2, and the upper limit may be 6, 5.5. , 5, 4.5, 4, 3.5, 3, 3.5, 2, 2.5 or 1. The ratio (C/U) is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or any of the above-described lower limits and any of the above-described upper limits. It may be in the range between any upper limit of .

As described above, either or both of the thiol compound and carboxylic acid compound can be applied as the curing speed regulator. The carboxylic acid compound and the thiol compound may be applied simultaneously in order to secure the desired viscosity maintenance section after the start of curing, secure appropriate curing speed and hardenability after the viscosity maintenance section, and control the hardness increase rate at the same time. .

When the thiol compound and the carboxylic acid compound are simultaneously included as described above, the weight ratio (T/C) of the thiol compound (T) to the carboxylic acid compound (C) can be adjusted. The lower limit of the ratio (T/C) may be 0.01, 0.05, 0.1, 0.5, 1, 1.5, 2, 2.5 or 3, and the upper limit may be 10, 9.5, 9, 8.5, 8, 7.5, 7, 6.5 , 6, 5.5, 5, 4.5, 4, 3.5, 3, 2.5, 2 or 1.5. The ratio (T/C) is above any one of the above-described lower limits, below any one of the above-described upper limits, or between any one of the above-described lower limits and any of the above-described upper limits. It may be in the range between any upper limit of .

The resin composition includes the above components and may further include other components if necessary. Examples of other ingredients applied at this time include viscosity control agents (e.g., thixotropic agents, diluents, etc.), dispersants to control viscosity, for example, to increase or lower viscosity or to control viscosity according to shear force. , surface treatment agents, flame retardants, flame retardant auxiliaries and/or coupling agents, etc., but are not limited thereto.

The resin composition may be a one-component composition or a two-component composition as described above.

In the case of a two-component composition, each of the above-mentioned components of the resin composition may be divided into physically separated main part and hardener part.

In one example, this application relates to a composition in which the resin composition is composed of a two-component composition (two-component composition).

This two-part composition may include at least a main part and a curing agent part, and the main part and the curing agent part may be physically separated from each other. When these physically separated main and hardener parts are mixed, a curing reaction can be initiated. When the resin composition is a polyurethane composition, polyurethane may be formed as a result of the curing reaction.

In constructing a two-component composition, the main part may include at least the curable component, a catalyst, and a curing speed regulator among the above-mentioned components. Additionally, the hardener part may include at least the hardener (polyisocyanate). In the above case, the main part may not contain the curing agent (polyisocyanate), and the curing agent part may not contain the curing component, catalyst, and curing regulator.

The filler component may be included in any one of the main and curing agent parts, or may be included in both the main and curing agent parts. When the filler component is included in both the main and hardener parts, the same amount of filler ingredient may be included in the main and hardener parts.

For example, in the above case, the upper limit of the proportion of the filler component in the main part is 95% by weight, 94.5% by weight, 94% by weight, 93.5% by weight, 93% by weight, 92.5% by weight, 92% by weight. , 91.5% by weight, 91% by weight, 90.5% by weight, 90.0% by weight, 89.5% by weight, or 89.0% by weight, and the lower limit is 70% by weight, 71% by weight, 72% by weight, 73% by weight, 74% by weight. %, about 75% by weight, 76% by weight, 77% by weight, 78% by weight, 79% by weight, 80% by weight, 81% by weight, 82% by weight, 83% by weight, 84% by weight, 85% by weight, 86% by weight , it may be about 87% by weight or 88% by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The ratio of the filler component in the main part may be defined as a ratio relative to 100 parts by weight of the total weight of the curable component of the main part or the reactive compound present in the curable component. For example, the lower limit of the ratio of the filler component may be about 500 parts by weight, 550 parts by weight, 600 parts by weight, 650 parts by weight, 700 parts by weight, 750 parts by weight, 800 parts by weight, or 850 parts by weight, and the upper limit is The amount of silver may be 2,000 parts by weight, 1,800 parts by weight, 1,600 parts by weight, 1,400 parts by weight, 1,200 parts by weight, 1,000 parts by weight, 950 parts by weight, or 900 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

Meanwhile, in the above case, the upper limit of the ratio of the filler component in the curing agent part is 95% by weight, 94.5% by weight, 94% by weight, 93.5% by weight, 93% by weight, 92.5% by weight, 92% by weight, 91.5% by weight. It may be about % by weight, 91% by weight, 90.5% by weight, 90.0% by weight, 89.5% by weight, or 89.0% by weight, and the lower limit is 70% by weight, 71% by weight, 72% by weight, 73% by weight, 74% by weight, About 75% by weight, 76% by weight, 77% by weight, 78% by weight, 79% by weight, 80% by weight, 81% by weight, 82% by weight, 83% by weight, 84% by weight, 85% by weight, 86% by weight, 87% by weight. It may be about % by weight or 88% by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

The ratio of the filler component in the curing agent part may be defined as a ratio relative to 100 parts by weight of the curing agent (polyisocyanate) in the curing agent part. For example, the lower limit of the ratio of the filler component may be about 500 parts by weight, 550 parts by weight, 600 parts by weight, 650 parts by weight, 700 parts by weight, 750 parts by weight, 800 parts by weight, or 850 parts by weight, and the upper limit is The amount of silver may be 2,000 parts by weight, 1,800 parts by weight, 1,600 parts by weight, 1,400 parts by weight, 1,200 parts by weight, 1,000 parts by weight, 950 parts by weight, or 900 parts by weight. The ratio is greater than or equal to any one of the above-described lower limits, less than or equal to any one of the above-described upper limits, or between any of the above-described lower limits and any one of the above-described upper limits. It may be in the range in between.

Other components such as catalysts, plasticizers, flame retardants, etc. may be included in the subject and/or curing agent parts as needed.

In the two-part composition, the lower limit of the volume ratio (P/N) of the volume (P) of the main part to the volume (N) of the curing agent part may be 0.8, 0.85, 0.9, 0.95 or 1, and the upper limit may be , 1.2, 1.15, 1.1, 1.05 or 1. The ratio (P/N) is greater than or equal to any one of the above-described lower limits, less than or equal to any of the above-described upper limits, or any of the above-described lower limits and any of the above-described upper limits. It may be in the range between any upper limit of .

In one example, the two-part composition may be formulated so that the above-described equivalence ratio (OH/NCO) can be secured when the main part and the curing agent part have the above volume ratio.

This two-component composition or its cured body also has adhesion to aluminum and polyester, thermal conductivity, hardness, radius of curvature, insulation, flame retardancy, specific gravity, shrinkage, thermal expansion coefficient and/or 5% by weight in thermogravimetric analysis (TGA). It can indicate loss (5% weight loss) temperature, etc.

The resin composition (one-component or two-component composition) can exhibit an appropriate curing speed after the start of curing. In the above, the initiation of curing occurs when the curing agent contained in the resin composition and the curing agent come into contact under conditions where curing can be initiated. Therefore, in the case of a one-component composition, curing is initiated when the composition is placed under curing initiation conditions, and in the case of a two-component composition, the curing can be initiated when the main and curing agent parts are mixed under curing initiation conditions. .

For example, when the resin composition is a curable composition, the curable composition may exhibit a curing speed in which V ₁ according to the following formula 1 is within a predetermined range.

[Equation 1]

V ₁ = V _initial /t

In Equation 1, V _initial is the initial viscosity (unit: cps) at the start of curing of the curable composition, and t is the time required for the viscosity of the curable composition to double compared to the initial viscosity from the start of curing ( Unit: minutes).

As described above, the curing occurs when the components participating in the curing reaction come into contact under conditions enabling curing.

For example, the curable composition may include the curable component, a cure rate regulator; In the case of a main part containing a urethane reaction catalyst and a filler component, the curing start point is when the main part (curable composition) and the curing agent component (e.g., the curing agent component or curing agent part containing the polyisocyanate) are cured. It may be a mixed point in time under possible conditions. The mixing to confirm the following equation 1 may be performed so that the main part and the curing agent component satisfy the above-mentioned volume ratio (P/N) and/or equivalence ratio (OH/NCO).

Accordingly, the initial viscosity in this case may be the initial viscosity of the mixture of the main part and the curing agent component.

A method for confirming V ₁ in Equation 1 above is summarized in the Examples.

The lower limit of V ₁ in Equation 1 is 2,000 cps/min, 2,500 cps/min, 3,000 cps/min, 3,500 cps/min, 4,000 cps/min, 4,500 cps/min, 5,000 cps/min, 5,500 cps/min, It may be around 6,000 cps/min or 6,500 cps/min, with upper limits being 20,000 cps/min, 18,000 cps/min, 16,000 cps/min, 14,000 cps/min, 12,000 cps/min, 10,000 cps/min, 9,500 cps/ min, 9,000 cps/min, 8,500 cps/min, 8,000 cps/min, 7,500 cps/min, 7,000 cps/min, 6,500 cps/min, 6,000 cps/min, 5,500 cps/min, 5,000 cps/min, 4,500 cps/ min, 4,000 cps/min, 3,500 cps/min, 3,000 cps/min, or 2,500 cps/min. The V ₁ is greater than or equal to any one of the above-described lower limits, below any of the above-described upper limits, or between any of the above-described lower limits and any of the above-described upper limits. It may be in the range between .

In Equation 1 above, the upper limit of V _initial may be about 400,000 cps, 350,000 cps, 300,000 cps, 250,000 cps, 200,000 cps or 150,000 cps, and the lower limit is 10,000 cps, 50,000 cps, 100,000 cps, 150,0 00 cps or 200,000 cps there is. The V _initial is above any one of the above-described lower limits, below any one of the above-described upper limits, or between any one of the above-described lower limits and any one of the above-described upper limits. It may be in the range between .

The curable composition may exhibit a predetermined Shore OO hardness detection time after the start of curing. In the above, the Shore OO hardness detection time refers to the time taken for the Shore OO hardness to be first detected in the process of periodically measuring the hardness of the curable composition after the start of curing. In other words, when the hardness of the curable composition is set to start curing, hardness increases as curing progresses. Therefore, if the Shore OO hardness detection time is short, it means that the curing speed is fast.

In the above, the point in time at which curing begins and the meaning of the curable composition from which the hardness is measured are as described in Equation 1 above.

Thus, for example, the curable composition may include the curable component, a cure rate regulator; In the case of a main part containing a urethane reaction catalyst and a filler component, the curing start point is when the main part (curable composition) and the curing agent component (e.g., the curing agent component or curing agent part containing the polyisocyanate) are curable. It may be at the time of mixing under conditions, and the mixing may be performed so that the main part and the curing agent component satisfy the above-mentioned volume ratio (P/N) and/or equivalence ratio (OH/NCO).

In this case the hardness can be measured for a mixture of the main part and the hardener component.

The lower limit of the Shore OO hardness detection time is 60 minutes, 80 minutes, 100 minutes, 150 minutes, 200 minutes, 250 minutes, 300 minutes, 350 minutes, 400 minutes, 450 minutes, 500 minutes, 550 minutes, 600 minutes, 650 minutes. minutes, 700 minutes, or 750 minutes, and the upper limit is 30 hours, 28 hours, 26 hours, 24 hours, 22 hours, 20 hours, 18 hours, 16 hours, 14 hours, 12 hours, 10 hours, 9 hours. , it may be 8 hours, 7 hours, 6 hours, 5 hours or 4 hours. The detection time is greater than or equal to any one of the above-described lower limits, below or below any of the above-described upper limits, or between any one of the above-described lower limits and any one of the above-described upper limits. It may be in the range between .

This application also relates to Thermal Interface Material (TIM). The thermal interface material may be a cured product of the resin composition.

Therefore, the thermal interface material also has adhesion to aluminum and polyester, thermal conductivity, hardness, radius of curvature, insulation, flame retardancy, specific gravity, shrinkage, thermal expansion coefficient and/or 5% weight in thermogravimetric analysis (TGA). It can indicate loss (5% weight loss) temperature, etc.

Accordingly, the thermal interface material may include components contained in the resin composition or components derived from the components.

For example, if the resin composition is a polyurethane composition, the thermal interface material may include the polyurethane.

Polyurethane can be formed by reaction of the above-described reactive compounds with a curing agent (polyisocyanate).

Therefore, the polyurethane may include units derived from the reactive compound.

For example, if the reactive compound comprises a polyester backbone (e.g., a polycaprolactone backbone) or a polyether backbone (e.g., a polyalkylene backbone) described above, the polyurethane may contain the polyester units. (eg, polycaprolactone units) or polyether units (eg, polyalkylene units).

For example, the polyurethane may include units of the above-described formulas 2, 3, 5, and/or 6.

Additionally, the polyurethane may contain a hydrocarbon group derived from the above-described oil-modified compound, that is, a straight-chain or branched-chain hydrocarbon group having 3 or more carbon atoms.

As described above, the lower limit of the number of carbon atoms in the straight-chain or branched-chain hydrocarbon group is 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, It can be around 14, 15, 16 or 17, with the upper limit being 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40. , 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23 It could be 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, or 8. The number of carbon atoms is less than or equal to any of the above-described upper limits, greater than or equal to any of the above-described lower limits, or between any of the above-described lower limits and the above-described upper limits. It may be within a range between any upper limit of .

The straight-chain or branched-chain hydrocarbon group may or may not contain a double bond. When a double bond is included, the double bond may be a conjugated double bond or a cis double bond.

Specific types of the hydrocarbon group include an alkyl group, an alkenyl group, or an alkynyl group. In one example, the hydrocarbon group may be connected to the polyurethane skeleton through a carbonyl group or a carbonyloxy group. In this case, the hydrocarbon group may be an alkylcarbonyl group, an alkenylcarbonyl group, an alkynylcarbonyl group, an alkylcarbonyloxy group, or an alkylcarbonyloxy group. It may be a kenylcarbonyloxy group or an alkynylcarbonyloxy group. In the above, the number of carbon atoms in the alkyl group, alkenyl group or alkynyl group is greater than or equal to any lower limit among the lower limits of the number of carbon atoms in the above-described straight-chain or branched-chain hydrocarbon group. Below any one of the upper limits of the number of carbon atoms or below any of the lower limits of the number of carbon atoms of the above-described straight-chain or branched-chain hydrocarbon group and of the carbon atoms of the above-described straight-chain or branched-chain hydrocarbon group It may be a range between any one of the upper limits of the number.

The alkyl group, alkenyl group, or alkynyl group may be straight chain or branched, and may be optionally substituted with one substituent. When a substituent is present, there is no particular limitation on the type of the substituent, and for example, a halogen atom such as fluorine may be exemplified as the substituent.

As described above, the hydrocarbon group may be included in the structures of Formulas 1 to 6 described above.

In addition, since the polyurethane may include a unit derived from the above-described curable component, it may include a unit of the first reactive compound and a unit of the second reactive compound, and as a unit of the second reactive compound , may include a unit of the third reactive compound and a unit of the fourth reactive compound.

The specific description of the reactive compounds and the ratios between them can be applied in the same way as those described in the resin composition.

In addition, since the polyurethane may include units derived from the above-described curing agent, it may include the above-described polyisocyanate units, for example, tri- or higher-functional polyisocyanate units and bi-functional polyisocyanate units. can do. The specific description of the polyisocyanate and the ratio between them can be applied in the same way as those described in the resin composition.

Polyurethane included in the thermal interface material may include at least one hydroxy group. In other words, polyurethane can be synthesized by forming a urethane bond by reacting the hydroxyl group of the reactive compound with the isocyanate group of the polyisocyanate, which is the curing agent. In this process, the hydroxyl group equivalent of the reactive compound is further adjusted to increase the final polyurethane. At least one hydroxy group may remain in urethane. For example, the polyurethane has a hydroxyl group of 0.1 mol/g or more, 0.1 mol/g to 10 mol/g, 0.1 mol/g to 9 mol/g, 0.1 mol/g to 8 mol/g, 0.1 mol/g. to 7 mol/g, 0.1 mol/g to 6 mol/g, 0.1 mol/g to 5 mol/g, 0.1 mol/g to 4 mol/g, 0.1 mol/g to 3 mol/g, 0.1 mol/g It may contain about 2 mol/g, 0.1 mol/g to 1 mol/g, and 0.1 mol/g to 0.5 mol/g. By allowing hydroxy groups to remain in polyurethane at the above ratio, a thermal interface material with the desired properties can be more effectively formed. There is no particular limitation on the method of maintaining the hydroxy group in polyurethane as described above, and the above polyurethane can be formed by adjusting the equivalence ratio of OH/NCO during the reaction process.

The thermal interface material may include components of the above-described resin composition together with the polyurethane, such as a cure rate regulator, plasticizer, catalyst, and/or filler components, and a detailed description of the components and their The weight ratio may be applied in the same manner as in the above resin composition.

This application also relates to a product containing the above resin composition or its cured body (thermal interface material or heat transfer material). The resin composition of the present application or its cured body can be usefully applied as a heat dissipation material. Accordingly, the product may include heating components. The term heat-generating component refers to a component that radiates heat during use, and its type is not particularly limited. Representative heat-generating components include various electrical/electronic products including battery cells, battery modules, or battery packs.

The product of the present application may include, for example, the heat-generating part and the resin composition (or the two-component composition) existing adjacent to the heat-generating part or a cured product thereof.

The specific method of constructing the product of the present application is not particularly limited, and if the resin composition or two-component composition of the present application or its cured product is applied as a heat dissipation material, the product can be constructed in various known ways.

This application provides curable compositions, thermal interface materials (TIMs), and uses thereof. In the present application, the curable composition or thermal interface material can exhibit high thermal conductivity and low adhesion to a given adherend. Additionally, in the present application, the low adhesion can be achieved without using adhesion adjusting components such as plasticizers or minimizing their use ratio.

In the present application, the curable composition can also exhibit a precisely controlled curing speed and at the same time have excellent curing properties.

The present application can also provide a product containing the curable composition, its cured body, or thermal interface material.

1 is a diagram of equipment for measuring load values.
Figures 2 and 3 show the analysis results of the reactive compounds synthesized in Preparation Examples 1 and 2, respectively.
Figures 4 and 5 are graphs recording changes in viscosity and hardness over time, respectively.

The present application will be described in detail through examples below, but the scope of the present application is not limited by the examples below.

The cured body mentioned below is prepared by mixing the main part and the curing agent part of the resin composition of the examples prepared in a two-component form so that the OH / NCO equivalent ratio described in each example is satisfied, and then left at room temperature (about 25 ° C.) for about 24 hours. It was formed by maintaining it.

In this example, the physical properties were evaluated in the following manner.

1. Thermal conductivity

The thermal conductivity of the resin composition (curable composition) or its cured body was measured using the hot-disk method according to ISO 22007-2 standards. Specifically, a mixture of the main part and the curing agent part of the Example or Comparative Example at a volume ratio of 1:1 was placed in a mold with a thickness of about 7 mm, and the thermal conductivity was measured in the through plane direction using a Hot Disk equipment. did. As specified in the above standard (ISO 22007-2), Hot Disk equipment is equipment that can check thermal conductivity by measuring the temperature change (change in electrical resistance) as a sensor with a double spiral structure of nickel wire is heated, and this standard Accordingly, the thermal conductivity was measured.

2. Measurement of adhesion to polyester

Adhesion to polyester was evaluated on specimens manufactured by attaching a PET (polyethylene terephthalate) film and an aluminum plate. As the PET film, a film with a width of about 10 mm and a length of about 200 mm was used, and as an aluminum plate, an aluminum plate with a width and length of 100 mm was used. A specimen was prepared by applying a resin composition to the entire surface of the aluminum plate, attaching the PET film to the resin composition, and maintaining it at room temperature (about 25°C) for about 24 hours. At this time, about 100 mm of the entire width and length of the PET film was attached to the aluminum plate through the resin composition. The adhesive force was measured while the PET film was peeled from the aluminum plate in the longitudinal direction while the aluminum plate of the specimen was fixed. The attachment is performed by applying the resin composition (a mixture of the main part and the curing agent part in a volume ratio of 1:1) to the aluminum plate to a thickness of about 2 mm after curing, and then attaching the PET film to the layer of the resin composition. The resin composition was cured by maintaining it at room temperature (about 25°C) for about 24 hours. The peeling was performed at a peeling speed of about 0.5 mm/min and a peeling angle of 180 degrees until the PET film was completely peeled off.

3. Measurement of adhesion to aluminum

Coat the uncured resin composition (a mixture of the main part and the hardener part in a 1:1 volume ratio) to the center of an aluminum substrate whose width and length are 2 cm and 7 cm, respectively, to about 2 cm in width and 2 cm in height. Then, an aluminum substrate having horizontal and vertical lengths of 2 cm and 7 cm, respectively, was attached on the coating layer, and the resin composition was cured by maintaining that state. In the above, the two aluminum substrates were attached to form an angle of 90 degrees to each other. Afterwards, while fixing the upper aluminum substrate, the lower aluminum substrate was pressed at a speed of 0.5 mm/min to measure the force while the lower aluminum substrate was separated, and the maximum force measured in the process was calculated as the area of the specimen. The adhesion to aluminum was calculated by dividing.

4. Measurement of hardness

The hardness of the cured resin composition was measured according to ASTM D 2240 and JIS K 6253 standards. This was performed using ASKER, a durometer hardness device, and the initial hardness was measured by applying a load of more than 1 Kg (approximately 1.5 Kg) to the surface of the flat sample (hardened body), and the hardness was confirmed by the stabilized measurement value after 15 seconds. evaluated.

5. Measurement of viscosity

Viscosity was measured at a shear rate of 0.01 s ^-1 to 10.0 s ^-1 at room temperature (about 25°C) using a Brookfield HB DB3T type device. The viscosity referred to in this specification is the viscosity at a shear rate of 2.4s ^-1 unless otherwise specified.

6. Measurement of curing speed (hardness confirmation time)

The curing speed of the resin composition was evaluated through the change in hardness over time. At this time, hardness was measured according to ASTM D 2240 and JIS K 6253 standards in the same manner as described above. The main part and the hardener part were mixed at a volume ratio of 1:1, maintained at room temperature (approximately 25°C), and hardness was checked every 30 minutes. The curing speed was evaluated by checking the time when Shore OO hardness was first confirmed. did.

7. Measurement of cure rate (viscosity increase time)

The curing speed of the resin composition was also evaluated through the change in viscosity over time.

Specifically, the curing speed was evaluated by checking V1 in Equation 1 below.

[Equation 1]

V ₁ = V _initial /t

In Equation 1, V _initial is the initial viscosity (unit: cps) of a mixture of the curable composition with a curing agent component containing polyisocyanate, and t is the time required for the viscosity of the mixture to double compared to the initial viscosity. (Unit: minutes).

Specifically, in the V _initial , a mixture of the main part and the curing agent part prepared in Examples or Comparative Examples at a volume ratio of 1:1 is loaded into a viscosity measuring device (Brookfield HB DB3T type device), and 2.4 s ^- This value was measured after stabilizing the viscosity by maintaining the shear rate of ¹ for about 60 seconds.

The viscosity was loaded into a Brookfield HB DB3T type viscometer and measured over time while maintaining a shear rate of 2.4 s ^-1 .

8. Measurement of radius of curvature

The radius of curvature of the hardened body was evaluated using a hardened body whose width, length, and thickness were 1 cm, 10 cm, and 2 mm, respectively. The radius of curvature is the minimum radius of the cylinder at which cracks do not occur in the hardened body when the hardened body is attached to cylinders with various radii and bent along the longitudinal direction.

9. Measurement of average particle size

The average particle size of the filler is the D50 particle size of the filler, which is the particle size measured with Marvern's MASTERSIZER3000 equipment in accordance with the ISO-13320 standard. Ethanol was used as a solvent during measurement. The incident laser is scattered by the fillers dispersed in the solvent, and the intensity and directionality of the scattered laser vary depending on the size of the filler. By analyzing this using Mie theory, the D50 particle size can be obtained. . Through the above analysis, the distribution diagram can be obtained by converting it to the diameter of a sphere with the same volume as the dispersed filler, and through this, the D50 value, which is the median value of the distribution diagram, can be obtained to evaluate the particle size.

10. Module workability evaluation

A resin composition (a 1:1 volume ratio mixture of base material and hardener parts) is applied to an aluminum plate in a square shape with a width and length of 8 cm, and a thickness of about 2 mm, and placed at room temperature (about 25°C) and humidity. It was cured by maintaining it for about 24 hours under conditions of (approximately 40% relative humidity). Subsequently, the cured product was removed from the aluminum plate and module workability was evaluated according to the following criteria.

<Evaluation criteria>

○: When the cured product of the resin composition is peeled off in a sheet shape without leaving any residue on the aluminum plate.

×: When it is impossible to remove the cured resin composition from the aluminum plate, or when it is removed, residue remains.

11. Fuzzing latency evaluation

The purging waiting time was evaluated by measuring the load value.

The load value (unit: kgf) was evaluated using equipment as disclosed in FIG. 1. The equipment in Figure 1 is equipment (1) in which two cartridges (2, 2a, 2b) and one static mixer (5) are connected. In the equipment 1, the cartridges 2, 2a, and 2b have a circular material injection portion with a diameter of 18 mm, and the material discharge portions 4, 4a, and 4b have a circular diameter of 3 mm and a height of 100 mm, A cartridge (Sulzer, AB050-01-10-01) with an internal volume of 25 ml was used. As the static mixer 5, a stepped type static mixer (Sulzer, MBH-06-16T) with a circular discharge portion 7 with a diameter of 2 mm and 16 elements was used. As the pressurizing means (3, 3a, 3b) of the equipment (means for pushing the composition loaded on the cartridge), a TA (Texture analyzer) was used.

To measure the load value, the subject part was loaded into one of the two cartridges (2a, 2b), and the hardener part was loaded into the other cartridge. Subsequently, by pressurizing at a constant speed of 1 mm/sec by the pressurizing means (3, 3a, 3b), the main agent and the curing agent parts are injected into the static mixer (5), mixed in the mixer (5), and discharged to the discharge portion (7). ) to be discharged from. In the above process, the force applied to the pressurizing means was measured from the time the pressure was started to the time of discharge. In the above process, the maximum value of the force applied to the pressing means was designated as the load value.

After measuring the load value, pressurization was stopped, and the equipment (1) was maintained at room temperature (about 25°C). In this case, a mixture of base parts and hardener parts is maintained in the mixer 5. After waiting for a certain period of time, pressure was started again using the pressure means, and the load value was measured in the same manner as above. In this process, the waiting time when the load value reached 60 kgf was designated as the purging waiting time.

12. Measurement of weight average molecular weight

Weight average molecular weight (Mw) was measured using GPC (Gel permeation chromatography). Specifically, the weight average molecular weight (Mw) is calculated by putting the sample to be analyzed in a 5 mL vial, diluting it with a THF (tetrahydrofuran) solvent to a concentration of about 1 mg/mL, and then mixing the standard sample for calibration and the analysis sample. It can be filtered and measured through a syringe filter (pore size: 0.45 μm). ChemStation from Agilent technologies was used as an analysis program, and the weight average molecular weight (Mw) can be obtained by comparing the elution time of the sample with the calibration curve.

<GPC measurement conditions>

Instrument: 1200 series from Agilent technologies

Column: TL Mix by Agilent technologies. Use A&B

Solvent: THF (tetrahydrofuran)

Column temperature: 35℃

Sample concentration: 1 mg/mL, 200 μl injection

Standard sample: polystyrene (MP: 3900000, 723000, 316500, 52200, 31400, 7200, 3940, 485) used

13. GC-MS (Gas Chromatography-Mass Spectrometry) analysis

Agilent's instrument was used as a measuring instrument for GC-MS analysis (GC (Gas Chromatography) instrument: 7890 model, MS (Mass Spectrometry) Detector: 5977B model). The sample (cured product of the resin composition) is dissolved in a solvent (chloroform) at a concentration of 100 mg/mL, the supernatant is extracted, filtered through a 0.2μm syringe filter, and then loaded into the GS-MS analysis device. Analysis is performed under the following conditions, and quantitative analysis is performed through the intensity of the peaks of the detection target substances (1-dodecanethiol and 2-ethylhexanoic acid).

<GC measurement conditions>

Column: HP-5MS from Agilent technologies

Gas Flow Rate: Column (He): 1mL/min

Ionization mode: EI

Injector temperature: 300℃

Injection volume: 0.5 ㎕

Manufacturing Example 1.

The oil-modifying compound (reactive compound) of the following formula (A) was prepared in the following manner.

[Formula A]

In Formula A, n and m are each greater than 0, and the sum (n+m) is about 4.8.

Polycaprolactone polyol (Capa 3031, Perstorp) and isononanoic acid, a saturated fatty acid, were mixed at a weight ratio of 1:0.53 (Capa 3031:isononanoic acid). Next, a catalyst (Tin(II) 2-ethylhexanoate (Sigma-Aldrich)) was added in an amount of 0.1 parts by weight based on 100 parts by weight of the mixture, and the mixture was stirred and maintained at 150°C for 30 minutes under inert gas purge conditions. Next, a small amount of xylene, an azeotropic solution, was added, the temperature was raised to 200°C, and reaction was performed for more than 3 hours, and then the pressure was reduced to 80 Torr or less, and xylene and unreacted products were removed. The reactant was cooled and filtered to obtain the target product (compound of Formula A).

As a result of GPC analysis performed on the target product, the weight average molecular weight was about 710 g/mol. Figure 2 is a diagram showing the results of GPC analysis performed on the target object.

Manufacturing example 2.

The oil-modifying compound (reactive compound) of the following formula B was prepared in the following manner.

[Formula B]

In Formula B, p and q are each greater than 0, and the sum (p+q) is about 4.8.

Polycaprolactone polyol (Capa 3031, Perstorp) and isononanoic acid, a saturated fatty acid, were mixed at a weight ratio of 1:1.06 (Capa 3031:isononanoic acid). Next, a catalyst (Tin(II) 2-ethylhexanoate (Sigma-Aldrich)) was added in an amount of 0.1 parts by weight based on 100 parts by weight of the mixture, and the mixture was stirred and maintained at 150°C for 30 minutes under inert gas purge conditions. Next, a small amount of xylene, an azeotropic solution, was added, the temperature was raised to 200°C, and reaction was performed for more than 3 hours, and then the pressure was reduced to 80 Torr or less, and xylene and unreacted products were removed. The reactant was cooled and filtered to obtain the target product (compound of formula B).

As a result of GPC analysis performed on the target product, the weight average molecular weight was about 814 g/mol. Figure 3 is a diagram showing the results of GPC analysis performed on the target object.

Example 1.

Manufacturing of main parts

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler ingredient and plasticizer (diisononyl adipate) at 4.59:5.1:0.51:0.066:0.2:0.066:88.8:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:2-EHA: The main part was manufactured by mixing filler:plasticizer in a weight ratio. The filler component was prepared by mixing a first alumina filler with an average particle diameter of about 70 μm, a second alumina filler with an average particle diameter of about 20 μm, and a third alumina filler with an average particle diameter of about 1 μm. The volume ratio during mixing was about 6:2:2 (first alumina filler:second alumina filler:third alumina filler).

Manufacturing of hardener parts

Polyisocyanate (Tolonate HDT-LV2, manufactured by Vencorex) was used as a curing agent. The main part was prepared by mixing the polyisocyanate, filler component, and plasticizer (diisononyl adipate) at a weight ratio of 5.08:4.78:90.1 (polyisocyanate:filler:plasticizer). The filler component was prepared by mixing a first alumina filler with an average particle diameter of about 70 μm, a second alumina filler with an average particle diameter of about 20 μm, and a third alumina filler with an average particle diameter of about 1 μm. The volume ratio during mixing was about 6:2:2 (first alumina filler:second alumina filler:third alumina filler).

The curing agent part has an equivalent ratio (OH/NCO) of the hydroxyl group (OH) present in the main part and the isocyanate group (NCO) present in the curing agent part when the curing agent part is mixed with the main part in a volume ratio of 1:1. ) was prepared to be about 100.

Preparation of resin compositions and cured bodies

A resin composition (curable composition) was prepared by preparing the main and curing agent parts respectively, and the main and curing agent parts were mixed at a volume ratio of about 1:1 and maintained at room temperature (about 25° C.) to form a cured body.

Example 2.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler component, and plasticizer (diisononyl adipate) were mixed at a weight ratio of 4.59:5.1:0.51:0.048:0.096:0.096:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010: DBTDL: Thiol: The main part was manufactured in the same manner as in Example 1, except that it was changed to (2-EHA: filler: plasticizer). The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Example 3.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), the filler ingredient and the plasticizer (diisononyl adipate) were mixed at a weight ratio of 4.59:5.1:0.51:0.06:0.11:0.11:88.8:0.71 (Preparation Example 1: Preparation Example 2: F-2010: DBTDL: Thiol: The main part was manufactured in the same manner as in Example 1, except that it was changed to (2-EHA: filler: plasticizer). The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Example 4

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler ingredient and plasticizer (diisononyl adipate) at 4.59:5.1:0.51:0.03:0.055:0.055:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:2-EHA: The main part was manufactured by mixing (filler:plasticizer) in weight ratio. The same filler component as in Example 1 was used.

The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Example 5

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler ingredient and plasticizer (diisononyl adipate) at 4.59:5.1:0.51:0.018:0.033:0.033:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:2-EHA: The main part was manufactured by mixing (filler:plasticizer) in weight ratio. The same filler component as in Example 1 was used.

The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Example 6

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler ingredient and plasticizer (diisononyl adipate) at 4.59:5.11:0.51:0.012:0.022:0.022:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:2-EHA: The main part was manufactured by mixing (filler:plasticizer) in weight ratio. The same filler component as in Example 1 was used.

The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Example 7

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), carboxylic acid compound (2-EHA, 2) -ethylhexanoic acid), filler ingredient and plasticizer (diisononyl adipate) at 4.6:5.11:0.51:0.0066:0.011:0.011:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:2-EHA: The main part was manufactured by mixing (filler:plasticizer) in weight ratio. The same filler component as in Example 1 was used.

The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 1

The main part, the curing agent part, the resin composition, and the cured body were prepared in the same manner as in Example 1, except that the thiol compound and carboxylic acid compound were not used in the preparation of the main part.

Comparative Example 2.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), carboxylic acid compounds (2-EHA, 2-ethylhexanoic acid), filler components, and The mixing weight ratio of the plasticizer (diisononyl adipate) was changed to 4.59:5.10:0.51:0.066:0.13:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:2-EHA: Filler: Plasticizer) The main part was manufactured in the same manner as in Example 1 except that. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 3.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), filler component and plasticizer (diisononyl adipate) Example 1 and except that the mixing weight ratio was changed to 4.59:5.1:0.51:0.066:0.13:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:filler:plasticizer) The main parts were manufactured in the same manner. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 4.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), filler component and plasticizer (diisononyl adipate) Example 1 and except that the mixing weight ratio was changed to 4.59:5.1:0.51:0.066:0.153:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:filler:plasticizer) The main parts were manufactured in the same manner. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 5.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), filler component and plasticizer (diisononyl adipate) Example 1 and except that the mixing weight ratio was changed to 4.59:5.1:0.51:0.066:0.2:88.8:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:filler:plasticizer) The main parts were manufactured in the same manner. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 6.

The weight ratio of the oil-modified compound of Preparation Examples 1 and 2, the non-oil-modified compound (Kuraray, F-2010), the urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), the filler component, and the plasticizer (diisononyl adipate) was 4.6:5.11. The main part was manufactured in the same manner as in Example 1, except that it was changed to :0.51:0.048:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL: Filler: Plasticizer). The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 7.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), filler component and plasticizer (diisononyl adipate) Example 1 and except that the mixing weight ratio was changed to 4.59:5.1:0.51:0.048:0.096:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:filler:plasticizer) The main parts were manufactured in the same manner. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 8.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), carboxylic acid compounds (2-EHA, 2-ethylhexanoic acid), filler components, and The mixing weight ratio of the plasticizer (diisononyl adipate) was changed to 4.59:5.1:0.51:0.048:0.096:89:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:2-EHA: Filler: Plasticizer) The main part was manufactured in the same manner as in Example 1 except that. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 9.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), thiol compound (1-dodecanethiol), filler component and plasticizer (diisononyl adipate) Example 1 and except that the mixing weight ratio was changed to 4.59:5.1:0.51:0.06:0.11:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:thiol:filler:plasticizer) The main parts were manufactured in the same manner. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

Comparative Example 10.

Oil-modified compounds of Preparation Examples 1 and 2, non-oil-modified compounds (Kuraray, F-2010), urethane reaction catalyst (DBTDL, Dibutyltin dilaurate), carboxylic acid compounds (2-EHA, 2-ethylhexanoic acid), filler components, and The mixing weight ratio of the plasticizer (diisononyl adipate) was changed to 4.59:5.10:0.51:0.060:0.11:88.9:0.71 (Preparation Example 1: Preparation Example 2: F-2010:DBTDL:2-EHA: Filler: Plasticizer) The main part was manufactured in the same manner as in Example 1 except that. The curing agent part, resin composition, and cured body were prepared in the same manner as in Example 1.

The physical property evaluation results summarized for each of the above examples and comparative examples are shown in Tables 1 to 4 below. The hardness (Shore OO and Shore A hardness) in Tables 1 and 2 below is the hardness measured after maintaining a mixture of the main part and the hardener part at a 1:1 volume ratio at room temperature (about 25°C) for 24 hours.

In Tables 1 to 4 below, the curing speed (hardness) is calculated by mixing the main part and the curing agent part of the Example or Comparative Example at a volume ratio of 1:1 and maintaining the hardness at room temperature (about 25°C) in 30-minute increments. This is the time (unit: time) at which Shore OO hardness is first confirmed when confirming (related to measurement 6. Measurement of curing speed (hardness confirmation time) above).

In Tables 1 to 4 below, the curing speed (viscosity) is t (unit: minutes) in Equation 1 in the method of measuring the curing speed (viscosity increase time), and V _initial and V ₁ are V _initial and V in Equation 1, respectively. It is ₁ .

Example One 2 3 Thermal conductivity (W/mK) 2.342 2.60 2.41 Al adhesion (N/mm ² ) 0.09~0.15 0.049~0.089 0.032~0.13 about polyester
Adhesion (gf/cm) 57 20 113 Shore OO hardness 90 88 77 Shore A hardness 78 76 65 Radius of curvature (mm) 10 10 8 Module workability ○ ○ ○ Purge waiting time (minutes) 30 40 30 Curing speed (hardness) 3.5 4.5 6.0 Cure speed (viscosity) 35.25 41.6 33.9 V _initial (cps) in Equation 1 227500 116200 125400 V ₁ in Equation 1 6454 2793 3699

Example 4 5 6 7 Thermal conductivity (W/mK) 2.49 2.54 2.43 2.46 Al adhesion (N/mm ² ) 0.082~0.063 0.058~0.090 0.033~0.070 0.026~0.050 Adhesion to polyester (gf/cm) 39 44 47 52 Shore OO hardness 95 92 90 93 Shore A hardness 76 78 75 76 Radius of curvature (mm) 10 11 10 10 Module workability ○ ○ ○ ○ Purge waiting time (minutes) 30 35 45 60 Curing speed (hardness) 5.5 6 7 13 Cure speed (viscosity) 30.3 37.1 46.5 63.1 V _initial (cps) in Equation 1 113100 110400 105200 176500 V ₁ in Equation 1 3732 2975 2262 2797

Comparative example One 2 3 4 5 Thermal conductivity (W/mK) 2.321 2.382 2.339 2.329 2.471 Al adhesion (N/mm ² ) 0.088~0.13 0.075~0.13 0.1~0.39 0.094~0.14 0.082~0.18 Adhesion to polyester (gf/cm 37 38 45 44 52 Shore OO hardness 94 94 89 90 97 Shore A hardness 82 75 77 82 78 Radius of curvature (mm) 10 10 10 10 10 Module workability ○ ○ ○ ○ ○ Purge waiting time (minutes) 5 10 25 30 30 Curing speed (hardness) One 4 2 2 2 Cure speed (viscosity) 11.41 20.5 26.25 27.41 29.75 V _initial (cps) in Equation 1 272500 178600 221000 225900 215000 V ₁ in Equation 1 23883 8712 8419 8242 7227

Comparative example 6 7 8 9 10 Thermal conductivity (W/mK) 2.72 2.62 2.60 2.48 2.41 Al adhesion (N/mm ² ) 0.0095~0.026 0.056~0.13 0.039~0.17 0.12~0.16 0.022~0.027 Adhesion to polyester (gf/cm 18 30 20 87 97 Shore OO hardness 77 88 82 76 80 Shore A hardness 65 72 70 63 70 Radius of curvature (mm) 8 10 10 9 10 Module workability ○ ○ ○ ○ ○ Purge waiting time (minutes) 5 55 20 40 10 Curing speed (hardness) 2 2 4.5 2 3 Cure speed (viscosity) 16.4 58.2 20.3 45.0 12.3 V _initial (cps) in Equation 1 144200 115100 140900 70450 142900 V ₁ in Equation 1 8793 1978 6941 1566 11618

Test example 1.

In order to confirm the curing delay effect due to the action of the thiol compound and carboxylic acid compound, the resin compositions of Example 1 and Comparative Examples 1, 2, and 5 were evaluated. The main part and the curing agent part of the resin composition of each of the above examples or comparative examples were mixed at a volume ratio of 1:1, and changes in viscosity and hardness over time were evaluated, and the results are shown in Figures 4 and 5.

Looking at the figure, in the case of Example 1 containing both a thiol compound and a carboxylic acid compound, a viscosity maintenance section in which the viscosity was maintained after mixing was confirmed, and the viscosity quickly increased after the viscosity maintenance section, ensuring stable curability after curing delay. You can check that. Additionally, in terms of hardness, it can be seen that there is a section in which hardness is not measured for an appropriate amount of time.

It can be seen that the viscosity quickly increased immediately after mixing the base material of Comparative Example 1, which does not contain a thiol compound and a carboxylic acid compound, and the curing agent part, and the hardness also began to be observed early after mixing and increased.

In the case of Comparative Example 2 containing only a carboxylic acid compound, the tendency for the viscosity to increase slowly compared to Comparative Example 1 was confirmed, but there was no viscosity maintenance section where the viscosity was kept constant at the beginning of mixing, and the hardness was confirmed too late. It can be seen that the viscosity does not increase well over time, so the hardenability is insufficient.

In the case of Comparative Example 5 containing only a thiol compound, a viscosity maintenance section was observed, but the viscosity maintenance section was relatively short, and the rate of increase in viscosity after the viscosity maintenance section was too fast. In addition, in the case of Comparative Example 5, the hardness also increased too quickly, so it could be expected that it would not be easy to secure working time in a large-area application process.

Test example 2.

Table 5 below summarizes the contents of thiol compounds and carboxylic acid compounds in the main parts and cured products of Examples 2 to 7.

In Table 5 below, the mixing amount is the amount (unit: weight %) of the thiol compound and carboxylic acid compound added during production, and the detection amount is the amount detected by GC-MS (Gas Chromatography-Mass Spectrometry) analysis (unit: weight %) )am.

From the results in Table 5, it can be seen that the thiol compound and carboxylic acid compound added to the main part remain in the cured body after the curing reaction. There were cases where thiol compounds and/or carboxylic acid compounds were not detected in Examples 5 to 8, but this was the result of a small addition amount. Considering the results of Examples 2 to 4, carboxylic acid was also present in the cured products of Examples 5 to 8. It can be inferred that a compound and a thiol compound exist.

subject part hardened body thiol compounds carboxylic acid compounds thiol compounds carboxylic acid compounds Mixing amount Detection amount Mixing amount Detection amount Mixing amount Detection amount Mixing amount Detection amount Example 2 0.096 0.0885 0.096 0.1403 0.048 0.0487 0.048 0.0567 Example 3 0.11 0.1058 0.11 0.1662 0.055 0.0616 0.055 0.0669 Example 4 0.055 0.0405 0.055 - 0.0275 0.0154 0.0275 - Example 5 0.033 0.0258 0.033 - 0.0165 0.06 0.0165 - Example 6 0.022 0.0139 0.022 - 0.011 0.021 0.011 - Example 7 0.011 0.046 0.011 - 0.0055 - 0.0055 -

Claims (25)

A curable component containing a reactive compound having a hydroxy group;
At least one curing rate regulator selected from the group consisting of thiol compounds and carboxylic acid compounds;
Urethane reaction catalyst and
Contains filler ingredients,
A curable composition having curability in which V ₁ is in the range of 2,000 to 20,000 cps/min according to the following formula 1:
[Equation 1]
V1 = V _initial /t
In Equation 1, V _initial is the initial viscosity (unit: cps) of the mixture of the curable composition with the curing agent component containing polyisocyanate, and t is the time required for the viscosity of the mixture to be doubled compared to the initial viscosity. (Unit: minutes). The curable composition according to claim 1, wherein the curable component comprises a first reactive compound having one hydroxy group and a second reactive compound having two or more hydroxy groups. The curable composition according to claim 2, wherein the second reactive compound having two or more hydroxy groups includes a third reactive compound having two hydroxy groups and a fourth reactive compound having three or more hydroxy groups. The curable composition according to claim 1, wherein the reactive compound contains at its terminal a branched hydrocarbon chain having 5 or more carbon atoms. The curable composition according to claim 3, wherein the first and third reactive compounds each contain a branched hydrocarbon chain having at least 5 carbon atoms at its ends. The method of claim 3, wherein the fourth reactive compound is a polycaprolactone polyol unit or an alkanediol unit; A curable composition comprising polyol units and dicarboxylic acid units. The curable composition according to claim 1, wherein the thiol compound is a monofunctional compound having a hydrocarbon group. The curable composition according to claim 7, wherein the monofunctional compound has a molecular weight in the range of 50 to 400 g/mol. The curable composition according to claim 1, wherein the carboxylic acid compound is a monofunctional compound having a hydrocarbon group. The curable composition according to claim 9, wherein the monofunctional compound has a molecular weight in the range of 50 to 400 g/mol. The curable composition according to claim 1, wherein the carboxylic acid compound has a pKa in the range of 2 to 9. The curable composition according to claim 1, wherein the curing rate regulator is contained in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the curable component. The curable composition according to claim 1, wherein the cure rate controlling agent includes a thiol compound and a carboxylic acid compound. The curable composition according to claim 1, wherein the urethane reaction catalyst is a tin catalyst. 14. The curable composition according to claim 13, wherein the weight ratio of the thiol compound to the carboxylic acid compound is in the range of 1 to 5. The curable composition according to claim 13, wherein the weight ratio of the thiol compound to the urethane reaction catalyst is in the range of 1 to 5. The curable composition according to claim 1, which forms a cured body having a thermal conductivity of 2.0 W/mK or more. The curable composition according to claim 1, which forms a cured body having an adhesion to aluminum of 0.15 N/mm2 or less. The curable composition according to claim 1, which forms a cured body having an adhesive force to polyester of 100 gf/cm or less. The curable composition according to claim 1, which forms a cured body having a Shore OO hardness of 95 or less. The curable composition of claim 1 further comprising a plasticizer. The curable composition according to claim 1, comprising at least 500 parts by weight of the filler component based on 100 parts by weight of the curable component. A two-component composition comprising a base part and a curing agent part,
A two-part composition wherein the main part is a curable composition according to any one of claims 1 to 22. 24. The two-part composition of claim 23, wherein the curing agent part comprises a polyisocyanate compound and a filler component. Comprising a heating element and a thermally conductive material present adjacent to the heating element,
A product wherein the thermally conductive material comprises a cured body of the curable composition of claim 1 or the two-component composition of claim 23.