KR101600331B1 - Rubber composition for tire innerliner and tire manufactured by using the same - Google Patents

Abstract

The present invention relates to a rubber composition for a tire innerliner and a tire produced using the same, wherein the rubber composition for a tire innerliner includes a raw rubber and a plasticizer having a Tg of -65 캜 or lower.
The rubber composition for a tire innerliner exhibits improved low temperature crack resistance and fatigue resistance without deteriorating the modulus and air permeability, and thus is useful as a rubber composition for a tire inner liner.

Description

TECHNICAL FIELD [0001] The present invention relates to a rubber composition for a tire innerliner, and a tire manufactured using the same. BACKGROUND OF THE INVENTION [0002]

TECHNICAL FIELD The present invention relates to a rubber composition for a tire inner liner and a tire produced using the same, and more particularly to a rubber composition for a tire inner liner exhibiting improved low temperature crack resistance and fatigue resistance without lowering modulus and air permeability And a tire manufactured using the same.

The inner liner of the tire is the rubber on the inner surface of the tire, and does not leak air from the tire and the rim, and maintains the air pressure inside the tire. Therefore, air permeability is a very important part, and it is mainly composed of butyl rubber. Also, since the inner liner portion receives the load of the vehicle or repeated fatigue, the fatigue resistance is required. In recent years, there has been an increasing demand for improvement in tire regeneration, and therefore, the importance of improvement in durability is also increasing.

Butyl rubber is used as raw rubber for inner liner of most tires such as automobile tires, truck tires, and aircraft tires because of its good air permeability. However, it has a disadvantage that the air permeability is good, but the crack resistance at low temperature is not so excellent .

In order to solve this problem, butyl rubber having poor crack resistance at low temperatures is used as raw material rubber, and other additives such as oil and resin are used. However, when the tensile properties of the inner liner are lowered by such additives, There is a possibility that the permeability is deteriorated. If the air permeability is unfavorable, it is disadvantageous in keeping the air pressure inside the tire and the durability is deteriorated.

In addition, if the tensile properties are too low, the fatigue resistance may be advantageous, but the gauge is easily reduced due to repetitive fatigue, which may cause exposure of the cord inside the inner liner rubber.

Korean Patent Publication No. 2003-0090286 (published on November 28, 2003) Korean Patent Laid-Open Publication No. 2011-0071606 (published on June 29, 2011) Korean Patent Publication No. 2005-0121322 (published on December 27, 2005)

It is an object of the present invention to provide a rubber composition for a tire inner liner having properties of improving low-temperature crack resistance and fatigue resistance without deteriorating modulus and air permeability.

Another object of the present invention is to provide a tire produced using the rubber composition for a tire innerliner.

In order to achieve the above object, a rubber composition for a tire inner liner according to an embodiment of the present invention includes a raw rubber and a plasticizer having a Tg of -65 캜 or less.

The plasticizer having a Tg of -65 캜 or lower may be a phosphate compound.

The plasticizer having a Tg of -65 DEG C or lower may be trisalkyl phosphate (wherein alkyl is alkyl having 1 to 10 carbon atoms).

The plasticizer having a Tg of -65 캜 or lower may be a compound represented by the following general formula (1).

[Chemical Formula 1]

The rubber composition for a tire innerliner may include 0.1 to 10 parts by weight of a plasticizer having a Tg of -65 캜 or less based on 100 parts by weight of the raw rubber.

The rubber composition for a tire innerliner may include 2 to 6 parts by weight of a plasticizer having a Tg of -65 캜 or less based on 100 parts by weight of the raw rubber.

The rubber composition for a tire inner liner may further include a plate-like inorganic filler.

The plate-like inorganic filler may be delaminated kaolin.

The flake kaolin may have a particle diameter of 0.7 to 4.0 mu m.

The rubber composition for a tire innerliner may include 10 to 50 parts by weight of the plate-like inorganic filler per 100 parts by weight of the raw rubber.

The rubber composition for a tire innerliner may include 20 to 40 parts by weight of the plate-like inorganic filler per 100 parts by weight of the raw rubber.

Wherein the rubber composition for a tire innerliner comprises 45 to 65 parts by weight of carbon black, 0.5 to 2.0 parts by weight of a vulcanizing agent, 1.0 to 2.5 parts by weight of a vulcanization accelerator, and combinations thereof, based on 100 parts by weight of the raw rubber And may further include one.

A tire according to another embodiment of the present invention is manufactured using the rubber composition for a tire innerliner.

Hereinafter, the present invention will be described in more detail.

The rubber composition for a tire inner liner according to an embodiment of the present invention includes a raw rubber and a plasticizer having a Tg of -65 캜 or less.

Any material can be used as long as it can be used as a raw material rubber for a rubber composition for a conventional tire inner liner. As an example of the raw material rubber, a natural rubber, a butyl rubber or a halogenated butyl rubber may be respectively used, or a mixed rubber obtained by mixing two or more of them may be used.

The raw rubber may include the natural rubber and the butyl rubber or the halogenated butyl rubber. In this case, the weight ratio of the natural rubber to the butyl rubber or the halogenated butyl rubber may be 1: 9 to 9: 1 . When the weight ratio of the natural rubber to the butyl rubber or the halogenated butyl rubber is within the above range, the air permeability of the rubber composition for a tire inner liner can be further improved.

The halogenated butyl rubber is obtained by replacing a butyl rubber with a halogen element, and may be specifically a chlorobutyl rubber, a bromobutyl rubber or the like.

The rubber composition for a tire innerliner is excellent in crack resistance at low temperatures while maintaining a modulus level and air permeability.

Generally, the low-temperature crack resistance of the inner liner rubber composition is related to Tg. The lower the Tg, the better the cracking resistance at low temperature, so the lower the Tg, the more raw materials are used. However, the modulus tends to be lowered when the crack resistance at low temperatures is improved. When the modulus is lowered, the cross-linking density is lowered and the gauge is easily deformed due to the repeated fatigue, so that the cord inside the inner liner rubber is exposed, and the cross-linking density is lowered and the air permeability also tends to be disadvantageous.

In addition, in recent years, there has been a growing demand for improvement in regeneration of tires, and there is a growing demand for improvement in regeneration of inner liner. When the modulus is increased, crack resistance and regeneration are disadvantageous.

Accordingly, the rubber composition for a tire innerliner includes a plasticizer having a Tg of -65 캜 or less to improve crack resistance and fatigue resistance at low temperatures while ensuring modulus and air permeability. When a plasticizer having a low Tg as compared with the conventional oil (Tg of -50 캜) is used, the Tg of the rubber composition for a tire inner liner itself can be lowered, thereby improving crack resistance at low temperatures.

The plasticizer having a Tg of -65 캜 or lower may be a phosphate compound, specifically, trisalkyl phosphate (wherein alkyl is alkyl having 1 to 10 carbon atoms), and more specifically, Lt; / RTI >

[Chemical Formula 1]

When the compound represented by the above formula (1) is used as the plasticizer having a Tg of -65 캜 or lower, it is advantageous to lower the Tg and maximize the effect of improving the low-temperature cracking property.

The rubber composition for a tire innerliner may include 0.1 to 10 parts by weight of a plasticizer having a Tg of -65 캜 or less based on 100 parts by weight of the raw rubber, and may include 2 to 6 parts by weight. If the amount of the plasticizer is less than 0.1 part by weight, the effect of improving the low-temperature cracking property may be insufficient. If the amount is more than 10 parts by weight, the modulus may decrease and gauge deformation may easily occur.

However, when the plasticizer is used, the modulus reduction and the air permeability may be disadvantageous. In order to compensate for this, the rubber composition for a tire innerliner may further include a plate-like inorganic filler. The plate-like inorganic filler has a plate-like shape and can serve as a gas barrier, so that the air permeability of the inner liner can be improved.

As the plate-like inorganic filler, any one selected from the group consisting of talc, mica, sericite, glass flake, graphite, iron oxide, plate-like calcium carbonate, plate-shaped aluminum hydroxide, pyrophyllite, talc, flake kaolin and mixtures thereof And preferably, flaky kaolin can be used. Since the flaky kaolin is advantageous from the viewpoint of cost, the content can be adjusted to secure a proper modulus level, and the flake kaolin is in the form of a plate, so that the air permeability can be improved by acting as a gas barrier.

The flake kaolin may have a particle diameter of 0.7 to 4.0 mu m. If the particle size of the thin flaky kaolin is less than 0.7 탆, the air permeability may be deteriorated, and if it is more than 4.0 탆, the endothelial loss and crack resistance may be disadvantageous.

The rubber composition for a tire innerliner may include 10 to 50 parts by weight of the plate-like inorganic filler relative to 100 parts by weight of the raw rubber, and 20 to 40 parts by weight of the plate-like inorganic filler. If the content of the plate-like inorganic filler is less than 10 parts by weight, the air permeability may be deteriorated. If the content is more than 50 parts by weight, the endophthalmus and crack resistance may be disadvantageous.

The rubber composition for a tire innerliner may further include various additives such as additional vulcanizing agents, vulcanization accelerators, vulcanization accelerators, fillers and the like. Any of the various additives may be used as long as they are commonly used in the field to which the present invention belongs. The content thereof is not particularly limited as long as it depends on the compounding ratio used in a rubber composition for a conventional tire inner liner.

As the vulcanizing agent, a sulfur vulcanizing agent can be preferably used. The sulfur vulcanizing agent is an inorganic vulcanizing agent such as powder sulfur (S), insoluble sulfur (S), precipitated sulfur (S), colloid sulfur, etc., tetramethylthiuram disulfide (TMTD) Organic vulcanizing agents such as tetraethyltriuram disulfide (TETD) and dithiodimorpholine can be used. As the sulfur vulcanizing agent, a vulcanizing agent which produces elemental sulfur or sulfur, for example, amine disulfide, polymer sulfur and the like can be used.

It is preferable that the vulcanizing agent is contained in an amount of 0.5 to 2.0 parts by weight based on 100 parts by weight of the raw material rubber in view of providing a vulcanization effect that is less sensitive to heat and chemically stable.

The vulcanization accelerator refers to an accelerator that promotes the vulcanization rate or accelerates the retardation in the initial vulcanization step.

Examples of the vulcanization accelerator include sulfenamide, thiazole, thiuram, thiourea, guanidine, dithiocarbamate, aldehyde-amine, aldehyde-ammonia, imidazoline, Or a combination thereof.

Examples of the sulfenamide type vulcanization accelerator include N-cyclohexyl-2-benzothiazyl sulfenamide (CBS), N-tert-butyl-2-benzothiazyl sulfenamide (TBBS), N, N-dicyclohexyl -2-benzothiazyl sulfenamide, N-oxydiethylene-2-benzothiazyl sulfenamide, N, N-diisopropyl-2-benzothiazole sulfenamide, and combinations thereof Based compound can be used.

Examples of the thiol-based vulcanization accelerator include 2-mercaptobenzothiazole (MBT), dibenzothiazyl disulfide (MBTS), sodium salt of 2-mercaptobenzothiazole, zinc salt of 2-mercaptobenzothiazole , A copper salt of 2-mercaptobenzothiazole, a cyclohexylamine salt of 2-mercaptobenzothiazole, 2- (2,4-dinitrophenyl) mercaptobenzothiazole, 2- Ethyl 4-morpholinothio) benzothiazole, and combinations thereof. The thiazole-based compound may be used alone or in combination of two or more thereof.

Examples of the thiuram-based vulcanization accelerator include tetramethylthiuram disulfide (TMTD), tetraethylthiuram disulfide, tetramethylthiuram monosulfide, dipentamethylthiuram disulfide, dipentamethylthiuram monosulfide, dipentamethylene Any one of thiuram-based compounds selected from the group consisting of thiuram tetrasulfide, dipentamethylenethiuram hexasulfide, tetrabutylthiuram disulfide, pentamethylenethiuram tetrasulfide, and combinations thereof can be used.

Examples of the thiourea vulcanization accelerator include thiourea compounds selected from the group consisting of thiacarbamide, diethyl thiourea, dibutyl thiourea, trimethyl thiourea, diorthotolyl thiourea, and combinations thereof. Compounds may be used.

Examples of the guanidine-based vulcanization accelerator include guanidine-based compounds selected from the group consisting of diphenyl guanidine, diorthotolyl guanidine, triphenyl guanidine, orthotolyl biguanide, diphenyl guanidine phthalate, and combinations thereof .

Examples of the dithiocarbamate-based vulcanization accelerator include zinc ethylphenyldithiocarbamate, zinc butylphenyldithiocarbamate, sodium dimethyldithiocarbamate, zinc dimethyldithiocarbamate, zinc diethyldithiocarbamate, Zinc dibutyldithiocarbamate, zinc diamidithiocarbamate, zinc dipropyldithiocarbamate, complexation of zinc with piperidinedithiocarbamate and piperidine, zinc hexadecylisopropyldithiocarbamate, octadecyl Isopropyl dithiocarbamic acid zinc zinc dibenzyldithiocarbamate, sodium diethyldithiocarbamate, penta methylenedithiocarbamate, sodium selenium dimethyldithiocarbamate, diethyldithiocarbamate, sodium diethyldithiocarbamate, Cadmium dithiocarbamate, and combinations thereof. The dithiocarbamic acid-based compound may be used alone or in combination of two or more thereof.

Examples of the aldehyde-amine-based or aldehyde-ammonia-based vulcanization accelerator include aldehyde selected from the group consisting of acetaldehyde-aniline reactant, butylaldehyde-aniline condensate, hexamethylenetetramine, acetaldehyde- -Amine-based or aldehyde-ammonia-based compounds may be used.

As the imidazoline-based vulcanization accelerator, for example, an imidazoline-based compound such as 2-mercaptoimidazoline can be used. Examples of the xanthate vulcanization accelerator include xanthates such as zinc dibutylxanthogenate Compounds may be used.

The vulcanization accelerator may be preferably used in an amount of 0.1 to 2.5 parts by weight based on 100 parts by weight of the raw rubber, in order to maximize productivity improvement and rubber property enhancement by accelerating vulcanization speed.

The vulcanization accelerating assistant may be any one selected from the group consisting of an inorganic vulcanization accelerator aid, an organic vulcanization accelerator aid, and a combination thereof, which is used in combination with the vulcanization accelerator to complete the promoting effect thereof .

As the inorganic vulcanization accelerating aid, any one selected from the group consisting of zinc oxide (ZnO), zinc carbonate, magnesium oxide (MgO), lead oxide, potassium hydroxide and combinations thereof may be used have. As the organic vulcanization accelerating auxiliary, there may be selected from the group consisting of stearic acid, zinc stearate, palmitic acid, linoleic acid, oleic acid, lauric acid, dibutyl ammonium oleate, derivatives thereof, Can be used.

In particular, the zinc oxide and the stearic acid may be used together as the vulcanization accelerating assistant. In this case, the zinc oxide is dissolved in the stearic acid to form an effective complex with the vulcanization accelerator, Thereby facilitating the crosslinking reaction of the rubber.

When the zinc oxide and the stearic acid are used together, they may be used in an amount of 1 to 5 parts by weight and 0.5 to 3 parts by weight, respectively, based on 100 parts by weight of the raw rubber to serve as a proper vulcanization accelerator. If the content of the zinc oxide and the stearic acid is less than the above range, the vulcanization rate may be slow and the productivity may be deteriorated. If the content exceeds the above range, the scorch phenomenon may occur and the physical properties may be deteriorated.

The rubber composition for a tire innerliner may further comprise a filler. The filler may be any one selected from the group consisting of carbon black, silica, calcium carbonate, clay (hydrated aluminum silicate), aluminum hydroxide, lignin, silicate, talc, and combinations thereof.

The carbon black may have a nitrogen surface area per gram (N 2 SA) of 30 to 300 m 2 / g and an oil absorption of DBP (n-dibutyl phthalate) of 60 to 180 cc / 100 g. It is not.

If the nitrogen adsorption specific surface area of the carbon black exceeds 300 m < 2 > / g, the workability of the rubber composition for a tire may deteriorate. If it is less than 30 m < 2 > / g, the reinforcing performance by carbon black as a filler may be deteriorated. If the DBP oil absorption of the carbon black exceeds 180 cc / 100 g, the workability of the rubber composition may be deteriorated. If it is less than 60 cc / 100 g, the reinforcing performance by carbon black as a filler may be deteriorated.

Examples of the carbon black include N110, N121, N134, N220, N231, N234, N242, N293, N299, S315, N326, N330, N332, N339, N343, N347, N351, N358, N375, N539, , N630, N642, N650, N683, N754, N762, N765, N774, N787, N907, N908, N990 or N991.

The carbon black may be contained in an amount of 30 to 80 parts by weight based on 100 parts by weight of the raw rubber, more preferably 45 to 65 parts by weight, and still more preferably 53 to 57 parts by weight. When the content of the carbon black is less than 30 parts by weight, the reinforcing performance by the carbon black as the filler may be deteriorated. If the content is more than 80 parts by weight, the workability of the rubber composition may be deteriorated.

The softening agent is added to the rubber composition in order to impart plasticity to the rubber to facilitate processing or to decrease the hardness of the vulcanized rubber, and means an oil or other material used in rubber compounding or rubber production. The softening agent means an oil contained in a process oil or other rubber composition. The softener may be selected from the group consisting of petroleum oils, vegetable oils, and combinations thereof, but the present invention is not limited thereto.

The petroleum-based oil may be selected from the group consisting of paraffinic oil, naphthenic oil, aromatic oil, and combinations thereof.

Examples of the paraffin oil include P-1, P-2, P-3, P-4, P-5 and P-6 of Mychang Oil Co., N-1, N-2 and N-3 of Kokai Co., Ltd., and representative examples of the aromatic oils include A-2 and A-3 of Mingchang Oil Co.,

However, recently, when the content of the polycyclic aromatic hydrocarbons (hereinafter referred to as PAHs) contained in the aromatic oil is higher than 3 wt% together with the increase of the environmental consciousness, treated distillate aromatic extract oil, mild extraction solvate (MES) oil, residual aromatic extract (RAE) oil or heavy naphthenic oil.

Particularly, the oil used as the softening agent preferably has a total content of PAHs components of not more than 3 wt%, a kinematic viscosity of not less than 95 (210 S SUS), an aromatic component of 15 to 25 wt%, a naphthene component Of 27 to 37% by weight and a paraffinic component of 38 to 58% by weight can be preferably used.

The TDAE oil has favorable properties for environmental factors such as the low temperature property and the fuel consumption performance of the tire inner liner including the TDAE oil and the possibility of cancer induction of PAHs.

Examples of the vegetable oils include vegetable oils such as castor oil, cottonseed oil, linseed oil, canola oil, soybean oil, palm oil, palm oil, peanut oil, pine oil, pine tar, tall oil, cone oil, rice bran oil, safflower oil, sesame oil, , Jojoba oil, macadamia nut oil, four flower oil, tung oil, and combinations thereof.

It is preferable that the softening agent is used in an amount of 0 to 150 parts by weight based on 100 parts by weight of the raw material rubber in order to improve workability of the raw material rubber.

The rubber composition for a tire innerliner can be produced through a conventional two-step continuous manufacturing process. That is, during the finishing step in which the first stage of thermomechanical treatment or kneading and the crosslinking system are mixed at a maximum temperature of 110 to 190 占 폚, preferably at a high temperature of 130 to 180 占 폚, typically less than 110 占 폚, And a second step of mechanical treatment at a low temperature of 40 to 100 DEG C in a suitable mixer, but the present invention is not limited thereto.

The rubber composition for a tire inner liner is not limited to the inner liner but may be included in various rubber components constituting the tire. Examples of the rubber component include a tread, a sidewall, a sidewall insert, an apex, a chafer or a wire coat.

A tire according to another embodiment of the present invention is manufactured using the rubber composition for a tire innerliner. The method of manufacturing a tire using the rubber composition for a tire innerliner may be any method conventionally used for manufacturing a tire, and a detailed description thereof will be omitted herein.

The tires may be automobile tires, racing tires, airplane tires, agricultural tires, off-the-road tires, truck tires or bus tires. Further, the tire may be a radial tire or a bias tire, and preferably a radial tire.

The rubber composition for a tire inner liner of the present invention exhibits improved low temperature crack resistance and fatigue resistance without deteriorating the modulus and air permeability, and thus is useful as a rubber composition for a tire inner liner.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[ Manufacturing example : Preparation of rubber composition]

Rubber compositions for tire inner liner according to the following Examples and Comparative Examples were prepared using the compositions shown in Table 1 below. The composition as shown in Table 1 below was added to a Banbury mixer to form a rubber composition, followed by vulcanization at 170 DEG C for 15 minutes to prepare a specimen.

( Comparative Example  One)

57 parts by weight of carbon black, 1.3 parts by weight of zinc oxide, 0.8 parts by weight of stearic acid, 8 parts by weight of oil, 0.7 parts by weight of sulfur and 1.2 parts by weight of a thiazole vulcanization accelerator were compounded with 100 parts by weight of a starting rubber composed of 100 parts by weight of butyl rubber, A composition was prepared.

( Example  One)

A specimen was prepared in the same manner as in Comparative Example 1, except that 8 parts by weight of a compound represented by the following formula (1) was further added as a plasticizer having a Tg of -65 캜 or lower in the above Comparative Example 1.

[Chemical Formula 1]

( Example  2)

A specimen was prepared in the same manner as in Example 1, except that 4 weight parts of the compound represented by the formula (1) was added.

( Example  3)

A specimen was prepared in the same manner as in Example 2, except that 15 parts by weight of flake kaolin, which is a plate-like inorganic filler in Example 2, was further added.

( Example  4)

A specimen was prepared in the same manner as in Example 1 except that 30 parts by weight of the flake kaolin was added in Example 1.

Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Butyl rubber 100 100 100 100 100 Carbon black 57 57 57 57 57 Zinc oxide 1.3 1.3 1.3 1.3 1.3 Stearic acid 0.8 0.8 0.8 0.8 0.8 oil 8 - - - - Plasticizer - 8 4 4 4 Plate-like inorganic filler - - - 15 30 brimstone 0.7 0.7 0.7 0.7 0.7 Vulcanization accelerator 1.2 1.2 1.2 1.2 1.2

(Unit: parts by weight)

[ Experimental Example : Measurement of physical properties of the prepared rubber composition]

The physical properties of the rubber specimens prepared in Examples and Comparative Examples were measured and the results are shown in Table 2 below.

Item Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Tensile Properties Hardness 52 47 50 51 53 300% modulus 33 21 26 30 34 Air permeability (index) 100 90 94 97 102 My fatigue (index) 100 107 105 103 101 Brittle Temperature (℃) -58 -66 -65 -64 -62

1) Tensile properties: Uncured rubber was cured at 170 ° C to prepare dumbbell specimens, and hardness and 300% modulus were measured.

2) Air permeability in air: The unvulcanized rubber was vulcanized at 170 ° C. to prepare a circular specimen. The gas permeability was measured and indexed based on Comparative Example 1.

2) Fatigue resistance: The value obtained by indexing the number of cycles immediately before the specimen is cut off when repeated fatigue is given at a constant load or displacement is expressed as a value based on the comparative example 1. The larger the value is, the more advantageous it is.

3) Brittle Temperature: A constant force was applied to all five specimens at low temperature to determine the temperature at which all specimens broke.

Referring to Table 2, it can be seen that the brittle temperature of Example 1 is much lower than that of Comparative Example 1 because the plasticizer represented by Formula 1 is included. However, the modulus and the air permeability show a disadvantageous result.

In Example 2 in which the plasticizer was reduced to improve the modulus deterioration, the brittle temperature was not significantly changed compared with Example 1, the modulus was increased and the air permeability was improved. However, compared with Comparative Example 1, Results are shown.

In Example 3, 15 parts by weight of flaky kaolin was added to ensure air permeability and low-temperature crack resistance. As a result, the air permeability was improved compared with Example 2 due to the characteristics of the inorganic filler having a plate-like structure, but the modulus and air permeability were still disadvantageous as compared with Comparative Example 1.

In Example 4, the flaky kaolin was increased in order to improve the modulus. As a result, an equivalent level of modulus was obtained, and fatigue resistance and crack resistance at low temperature were improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

Claims (13)

100 parts by weight of butyl rubber,
0.1 to 10 parts by weight of a plasticizer having a Tg of -65 캜 or less represented by the following formula
10 to 50 parts by weight of flake kaolin
And a rubber composition for a tire innerliner.
[Chemical Formula 1]

delete delete delete delete delete delete delete The method according to claim 1,
Wherein the flaky kaolin has a particle diameter of 0.7 to 4.0 占 퐉. delete delete The method according to claim 1,
Wherein the rubber composition for a tire innerliner comprises 45 to 65 parts by weight of carbon black, 0.5 to 2.0 parts by weight of a vulcanizing agent, 1.0 to 2.5 parts by weight of a vulcanization accelerator, and combinations thereof, based on 100 parts by weight of the butyl rubber Wherein the rubber composition further comprises one or more rubber components. A tire produced by using the rubber composition for a tire innerliner according to claim 1.