KR101217692B1 - Composition for outsole and shoes manufactured by the same - Google Patents

Abstract

The present invention relates to a shoe sole composition and a shoe manufactured using the same, 100 parts by weight of a polymer material including butadiene rubber and syndiotactic 1,2-polybutadiene, and 1 to 20 parts by weight of hollow filler including soda-lime-borosilicate glass. The composition for shoe outsole can maintain or improve the mechanical strength and wear resistance of the shoe sole at an appropriate level while reducing the weight of the shoe outsole.

Description

COMPOSITION FOR OUTSOLE AND SHOES MANUFACTURED BY THE SAME}

The present invention relates to a composition for shoe outsole and to a shoe manufactured using the same, and to a composition for shoe outsole that maintains or improves the mechanical strength and wear resistance of a shoe sole at an appropriate level while reducing the weight of the shoe sole.

Footwear flooring materials are generally divided into insoles, midsoles, and outsoles.

Compositions currently applied for shoe outsoles generally include reinforcing fillers and rubber materials such as natural rubber, butadiene rubber, styrene butadiene rubber, although the shoe is somewhat different depending on the application. However, reinforcing fillers such as silica and carbon black have a high specific gravity, which increases the weight of the shoe and increases the fatigue of the wearer's foot.

In order to manufacture low-weight lightweight shoes, it is essential to reduce the weight of the shoe insole, but it is difficult to reduce the specific gravity with the rubber materials alone, and the low-weight shoe outsole is manufactured. The reality is that it is difficult to maintain or improve physical properties or wear resistance.

The most typical lightweight method of the shoe outsole is a foaming method that reduces the specific gravity of the outsole by forming fine cells in the polymer substrate constituting the shoe outsole. In this method of foaming, the size of the final product varies according to the foaming ratio during compression molding, so the design of the mold has to be changed according to the foaming ratio. In addition, since the foaming rate is highly dependent on compression molding conditions such as pressure and temperature, the failure rate is increased when the conditions are not met. In addition, since the bubbles formed therein act as defects in the polymer substrate, deterioration of physical properties is inevitable, and thus it is not applicable in a severe use environment, and wear resistance is reduced.

Recently, some methods have been attempted to lighten shoes by applying a low specific gravity filler having a hollow structure. However, in the case of replacing only the filler in the conventional rubber composition with a hollow structure, the hollow structure was destroyed or the physical properties of the product or the wear resistance tended to decrease during processing.

It is an object of the present invention to provide a shoe outsole composition and a shoe manufactured using the same, which maintains or improves the mechanical strength and wear resistance of the shoe sole while reducing the weight of the shoe outsole.

In order to achieve the above object, a shoe sole composition according to an embodiment of the present invention 100 parts by weight of a polymer material including butadiene rubber and syndiotactic 1,2-polybutadiene, and 1 to 20 parts by weight of hollow filler including soda-lime-borosilicate glass.

The polymer material may further include natural rubber, but may include 30 to 80 parts by weight of the butadiene rubber, 3 to 35 parts by weight of the syndiotactic 1,2-polybutadiene, and 5 to 35 parts by weight of the natural rubber. have.

The polymer material further includes a styrene resin master batch, and includes 30 to 80 parts by weight of the butadiene rubber, 5 to 40 parts by weight of the syndiotactic 1,2-polybutadiene, and 1 to 40 parts by weight of the styrene resin master batch. It may be.

The hollow filler may have an equilibrium fracture strength of 15000 psi or more, a density of 0.1 to 1.0 g / cc, and an average diameter of 1 to 100 μm.

The syndiotactic 1,2-polybutadiene has a 1,2-bond ratio (number of 1,4-bonds and 1,2-bonds relative to the total number of 1,2-bonds). ) Is 93% or more, and the hardness (A type) may be 97 or more.

The shoe sole composition may further include 0.01 to 15 parts by weight of any one filler selected from the group consisting of silica, carbon black, and combinations thereof based on 100 parts by weight of the polymer material.

The shoe sole composition is 0.01 to 20 parts by weight of crosslinking agent, 0.01 to 10 parts by weight of stabilizer, 0.1 to 5 parts by weight of activator, 0.1 to 10 parts by weight of antioxidant, and 0.1 to 8 parts by weight of vulcanization accelerator based on 100 parts by weight of the polymer material. It may be to include more parts by weight.

The shoe sole composition may further include 0.01 to 10 parts by weight of a plasticizer based on 100 parts by weight of the polymer material.

Shoes according to another embodiment of the present invention may be prepared by including the shoe outsole composition.

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

The shoe sole composition of the present invention comprises 100 parts by weight of a polymer material including butadiene rubber and syndiotactic 1,2-polybutadiene, and 1 to 20 parts by weight of a hollow filler.

The polymer material includes butadiene rubber and syndiotactic 1,2-polybutadiene rubber.

As the butadiene rubber, any conventional butadiene rubber that can be used in a shoe sole composition may be used, and preferably a high cis butadiene rubber having a cis content of 90% or more may be used.

The syndiotactic 1,2-polybutadiene is a polymer containing crystalline butadiene (Syndiotactic 1,2-Polybutadiene) having stereoacticity (tacticity), unlike conventional butadiene rubber does not exhibit crystallinity due to lack of stereoregularity to be. When the polymer material includes syndiotactic 1,2-polybutadiene, crosslinking may be performed by a crosslinking agent, but hardness may be increased, and wear resistance may be improved.

The syndiotactic 1,2-polybutadiene may have a crystallinity (%) of 15 to 30, and the syndiotactic 1,2-polybutadiene in the crystallinity range may exhibit suitable physical properties for processing at high temperature.

The syndiotactic 1,2-polybutadiene is a number of 1,2-bonds with respect to the total number of 1,4-bonds and 1,2-bonds (hereinafter, '1,2- And the ratio of bonds) may be 90% or more, and preferably, the ratio of 1,2-bonds may be 93% or more. In addition, the syndiotactic 1,2-polybutadiene may have a hardness (A type) of 95 or more, 97 or more, and preferably 97 to 100. When the syndiotactic 1,2-polybutadiene has a range of the ratio and hardness of the 1,2-bond, mechanical properties of the shoe sole may be improved.

In addition, the syndiotactic 1,2-polybutadiene may have a Tm of 100 ° C to 130 ° C and a specific gravity of 0.907 to 0.910. In the case of using syndiotactic 1,2-polybutadiene in the range of Tm and specific gravity, the hardness of the shoe sole can be improved while maintaining other physical properties appropriately.

In particular, when using the syndiotactic 1,2-polybutadiene having a ratio of 1,2-bonds of 93% or more and a hardness (A type) of 97 or more, the specific gravity of the shoe sole is lowered and appropriate abrasion resistance is achieved. The physical properties can be improved within the range.

100 parts by weight of the polymer material may include 40 to 90 parts by weight and 60 to 10 parts by weight of the butadiene rubber and syndiotactic 1,2-polybutadiene, respectively. have.

When syndiotactic 1,2-polybutadiene is used in an amount of less than 10 parts by weight based on 100 parts by weight of the polymer material, the hardness may be too low, indicating an inadequate physical property for shoe soles. May be too high and the effect of improving wear resistance may be negligible.

The polymer material may include 15 parts by weight or less of styrene butadiene rubber (SBR), preferably 10 parts by weight or less, and more preferably 1 to 5 parts by weight. In general, styrene butadiene rubber may improve mechanical properties, but may not be suitable for light weight and low specific gravity due to higher specific gravity than conventional rubber. The polymer material does not contain styrene-butadiene rubber or may be included in a small amount to reduce the weight and low specific gravity of the shoe sole, and the mechanical properties of the shoe sole through the properties of syndiotactic 1,2-polybutadiene and hollow fillers Improve.

The polymer material may further include natural rubber.

The natural rubber can be used as long as it can be used in the composition for shoes, and is not limited to grade or country of origin.

When the polymer material further comprises the natural rubber, 100 parts by weight of the polymer material 30 to 80 parts by weight of the butadiene rubber, 3 to 35 parts by weight of the syndiotactic 1,2-polybutadiene, and the natural rubber It may include 5 to 35 parts by weight, 50 to 70 parts by weight of the butadiene rubber, 10 to 30 parts by weight of the syndiotactic 1,2-polybutadiene, and the natural rubber may include 10 to 30 parts by weight.

Using more than 35 parts by weight of the natural rubber for the polymer material may be weak wear resistance, the hardness may be lowered.

The polymer material may further include a styrene resin master batch.

The styrene resin masterbatch includes styrene butadiene rubber latex and high styrene resin latex, and when it is included as a polymer material, wear resistance and tear resistance without seriously increasing the specific gravity of the rubber It can improve performance.

When the polymer material further comprises a styrene resin master batch, 100 parts by weight of the polymer material 30 to 80 parts by weight of the butadiene rubber, 5 to 40 parts by weight of the syndiotactic 1,2-polybutadiene, and the styrene resin It may comprise 1 to 40 parts by weight of the master batch, preferably 40 to 75 parts by weight of the butadiene rubber, 10 to 35 parts by weight of the syndiotactic 1,2-polybutadiene, and 1 to 25 parts by weight of the styrene resin master batch It may include, and more preferably 60 to 70 parts by weight of the butadiene rubber, 10 to 25 parts by weight of the syndiotactic 1,2-polybutadiene, and 10 to 25 parts by weight of the styrene resin master batch.

When 100 parts by weight of the polymer material includes the styrene resin master batch less than 1 part by weight, the effect of including the styrene resin master batch may be insignificant, and when the styrene resin master batch contains more than 40 parts by weight, wear resistance Can become vulnerable and can increase in weight.

The hollow filler may include soda lime borosilicate glass.

The hollow filler may have an isostatic crush strength of 15,000 psi or more, 15,000 psi to 40,000 psi, or 20,000 psi to 30,000 psi. If the polymer material does not contain styrene-butadiene rubber, if the equilibrium fracture strength of the hollow filler is less than 15,000 psi, the filler may be destroyed during processing and the effect of specific gravity reduction may be insignificant. As the volume of the hollow portion becomes smaller, the effect of specific gravity reduction may be insignificant. The hollow filler may be blended at an early stage without the need to be added at the end of the blending step to minimize the breakdown of the hollow filler as in the prior art. In this case, the hollow filler is more dispersed than the hollow filler is added at the last stage. You can increase the degree.

The hollow filler may have a density of 0.10 to 1.0 g / cc, and may be 0.30 to 0.80 g / cc. If the density of the hollow filler is less than 0.01g / cc may be difficult to process due to the increased acidity, if the content exceeds 1.0g / cc may be less effective in specific gravity reduction.

The hollow filler may be an average diameter of 1 to 100um, it may be 1 to 50um. If the average diameter is less than 1um, it may be difficult to process because the scattering property is large, and if it exceeds 100um, the mechanical strength of the shoe outsole can be reduced.

The shoe sole composition may further include a filler (hereinafter, abbreviated as filler) in addition to the hollow filler.

The filler may be any one selected from the group consisting of silica, carbon black, and combinations thereof. The silica and carbon black can be used a conventional one used in the sole composition.

The filler may further include 0.01 to 15 parts by weight based on 100 parts by weight of the polymer material, and when the filler is further included in an amount of more than 15 parts by weight, the reinforcing effect of the shoe sole may be increased, but the specific gravity may be increased. there is a problem.

The silica may be dry silica, and the dry silica may include 1 to 5 parts by weight based on 100 parts by weight of the polymer material to improve hardness.

The shoe sole composition includes a crosslinking agent.

The crosslinking agent may be any one selected from the group consisting of a sulfur crosslinking agent, an organic peroxide crosslinking agent, and a combination thereof.

The sulfur crosslinker may be sulfur or insoluble sulfur.

The organic peroxide crosslinking agent is cyclohexanone peroxide, t-butylperoxyisopropyl carbonate, t-butylperoxylaurylate, t-butylperoxyacetate, di-t-butyldiperoxyphthalate, t-dibutylperfer Oxymaleic acid, t-butyl cumyl peroxide, t-butyl hydroperoxide, t-butyl peroxybenzoate, dibenzoyl peroxide, dicumyl peroxide, 1,3-bis (t-butylperoxyisopropyl) benzene, Methyl ethyl ketone peroxide, di- (2,4-dichlorobenzoyl) peroxide, 1,1-di (t-butylperoxy) -3,3,5-trimethylcyclohexane, 2,5-dimethyl-2, 5-di (benzoylperoxy) hexane, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, di-t-butylperoxide, 2,5-dimethyl-2,5- (t -Butylperoxy) -3-hexyne, n-butyl-4,4-bis (t-butylperoxy) valerate and α, α'-bis (t-butylperoxy) diisopropylbenzene and combinations thereof Can be any one selected from the group consisting of have.

Sulfur may be preferably used as the crosslinking agent.

The crosslinking agent may be included in an amount of 0.01 to 20 parts by weight, preferably 0.01 to 10 parts by weight, and more preferably 0.01 to 1.5 parts by weight, based on 100 parts by weight of the polymer material.

The polymer material may further include other additives such as stabilizers, activators, anti-aging agents, vulcanization accelerators, coupling agents, etc. in addition to the crosslinking agent.

The stabilizer may be used as long as it can be applied to a shoe composition, and may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the polymer material for the effect of a suitable stabilizer.

The activator is used to suppress the deactivation of additives such as a crosslinking agent and may use polyethylene glycol (PEG) having a weight average molecular weight of 200 to 8000, and may include 0.1 to 5 parts by weight based on 100 parts by weight of the polymer material. Can be. When the activator is used in an amount of less than 0.1 part by weight based on 100 parts by weight of the polymer material, the activation effect may be insignificant, thereby delaying the crosslinking time, and when used in excess of 5 parts by weight, mechanical strength and wear resistance may be deteriorated. have.

The anti-aging agent is used to delay the aging phenomenon generated by heat or ozone, and can be used as long as it can be applied to a shoe composition, and 0.1 to 100 parts by weight of the polymer material for the proper anti-aging effect. It may be included in 10 parts by weight.

The vulcanization accelerator may be used as long as it can be applied to a composition for footwear, and may include aldehyde-ammonia, aldehyde-amines, guanidines, thioureas, thiazoles, sulfenamides, thiurams, and dithiocarbamates. And any one selected from the group consisting of a combination thereof may be used, and may be included in an amount of 0.1 to 8 parts by weight based on 100 parts by weight of the polymer material for proper vulcanization promoting effect.

In addition, it may further include a vulcanization accelerator, which is any one selected from the group consisting of zinc oxide, stearic acid, and combinations thereof, and may be included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the fruit material for proper vulcanization. .

The coupling agent is an additive applied to improve the modulus and abrasion resistance by connecting the filler and the polymer material, and may be used as long as it can be applied to a shoe composition, and a silane coupling agent may be used.

Examples of the silane coupling agent include vinyltriethoxysilane, vinyltri (2-methoxyethoxy) silane, 3-methacryloxypropyltrimethoxysilane, N-phenyl-3-aminopropyltrimethoxysilane, 3 Any one selected from the group consisting of metramtopfiltrimethoxysilane, bis (triethoxysilpropyl) tetrasulfane, thiocyanatopropyltriethoxysilane and combinations thereof can be used.

The coupling agent may be included in a ratio of 2 to 10 parts by weight based on 100 parts by weight of the total filler including the hollow filler and a filler other than the hollow filler. When the content of the coupling agent is less than 2 parts by weight based on 100 parts by weight of the filler, the effect of the coupling agent may be insignificant. When the content of the coupling agent exceeds 10 parts by weight, the physical properties of the sole may be deteriorated or premature crosslinking may occur. There is a problem.

The additive may further include a plasticizer, and may be included in 1 to 5 middle parts with respect to 100 parts by weight of the polymer material in order to obtain an appropriate plasticizer.

Another embodiment of the present invention includes a shoe manufactured by using the shoe sole composition. Since the method of manufacturing a shoe outsole and the method of manufacturing a shoe using the same using the composition for shoe outsole can be applied if it is a conventional method, the description thereof is omitted. In the method for manufacturing a shoe outsole with the composition for the outsole, specifically, the polymer material is kneaded at 100 to 120 ° C. for 3 to 15 minutes using a half-barrier mixer, a hollow filler is added, and an additive such as sulfur or sulfur is added. After mixing the vulcanization accelerator and the hollow filler may be prepared, but is not limited thereto.

The composition for shoe outsole of the present invention and a shoe manufactured using the same can maintain or improve the mechanical strength and wear resistance of the shoe sole at an appropriate level while reducing the weight of the shoe sole.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice 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.

Tables 1 to 2 using the composition for the shoe outsole was prepared in the shoe sole specimens of Examples and Comparative Examples. The following polymer material was kneaded in a closed mixer at 110 ° C. for 15 minutes, kneaded with hollow silica for 3 to 5 minutes, and then kneaded sufficiently by adding a crosslinking agent. The kneaded sheet thus prepared was crosslinked for 3 to 10 minutes at a temperature of 150 to 160 ° C. and 100 to 150 kg / cm 2 using a heat press to prepare shoe sole specimens.

division Example 1 Example 2 Example 3 Example 4 Example 5 Polymer material Butadiene rubber (BR) ¹⁾ 70 70 70 64 70 Natural Rubber (NR) - - - 20 - Syndiotactic Polybutadiene A ²⁾ 30 - - - - Syndiotactic Polybutadiene B ³⁾ - 30 - - - Syndiotactic Polybutadiene C ⁴⁾ - - 30 16 15 Styrene Resin Masterbatch ^{5 )} - - - - 15 Block SBR ^{6 )} - - - - - S-SBR ^{7 )} - - - - - Filler Hollow filler A ⁸⁾ 10 7 7 5 3 Hollow filler B ⁹⁾ - - - - - Hollow filler C ^{10 )} - - - - - Silica ^{11 )} 10 5 5 - 5 additive Stearic acid ^{12 )} One One One One One Activator ^{13 )} 1.5 1.5 1.5 One One Stabilizer A ¹⁴⁾ - - - 2 0.5 Antioxidant A ¹⁵⁾ - - - - 0.5 Antioxidant B ¹⁶⁾ - - - - One Antioxidant C ^{17 )} - - - - - Stabilizer B ¹⁸⁾ - - - - 0.3 Zinc Oxide ^{19 )} 5 5 5 2 2 Crosslinker ^{20 )} 1.5 1.5 1.5 0.5 0.7 Accelerator A ²¹⁾ 0.7 0.7 0.7 0.4 0.6 Accelerator B ²²⁾ 1.0 1.0 1.0 0.5 0.7 Accelerators C ^{23 )} - - - 0.1 0.1

(Unit: parts by weight)

division Comparative Example 1 Example 6 Example 7 Comparative Example 2 Polymer material Butadiene rubber (BR) ¹⁾ 30 50 55 70 Natural Rubber (NR) 50 40 30 - Syndiotactic Polybutadiene A ²⁾ - - - - Syndiotactic Polybutadiene B ³⁾ - 10 15 - Syndiotactic Polybutadiene C ⁴⁾ - - - - Styrene Resin Masterbatch ^{5 )} - - - - Block SBR ^{6 )} - - - 30 S-SBR ^{7 )} 20 - - - Filler Hollow filler A ⁸⁾ - - - 17 Hollow filler B ⁹⁾ - 10 - - Hollow filler C ^{10 )} - - 10 - Silica ^{11 )} 48 25 25 20 additive Stearic acid ^{12 )} 2 One One One Activator ^{13 )} 2 1.5 1.5 2 Stabilizer A ¹⁴⁾ - - - - Antioxidant A ¹⁵⁾ - - - - Antioxidant B ¹⁶⁾ 5 - - - Antioxidant C ^{17 )} 2 - - - Stabilizer B ¹⁸⁾ - - - - Zinc Oxide ^{19 )} 5 3 3 5 Crosslinker ^{20 )} 1.5 1.5 1.5 1.5 Accelerator A ²¹⁾ One - - 0.7 Accelerator B ²²⁾ 1.5 1.5 1.5 1.0 Accelerators C ^{23 )} - 0.2 0.2 -

(Unit: parts by weight)

week)

1) Butadiene rubber manufactured by BR-1208, LG Chem

2) Syndiotactic 1,2-polybutadiene having 90 (%) of 1,2-bonds, specific gravity of 0.901, Tm of 71 ° C and A type hardness of 82

3) Syndiotactic 1,2-polybutadiene with 1,2-linkage of 92 (%), specific gravity of 0.906, Tm of 95 ° C and A type hardness of 95

4) Syndiotactic 1,2-polybutadiene with 1,2-linkage of 93 (%), specific gravity of 0.909, Tm of 105 ° C and A type hardness of 99

5) Styrene resin masterbatch made of SBR latex with styrene content of 23.5% by weight and high styrene resin latex. Total styrene content 68% by weight

6) SBR1502 made by solution polymerization styrene butadiene rubber, manufactured by Kumho Petrochemical Co., Ltd.

7) E-30, Asahi Kashi Corporation made of block styrene butadiene rubber

8) Hollow silica with particle size 18 um and equilibrium fracture strength 15,000 psi

9) Hollow silica with particle size 115 um and equilibrium fracture strength 300 psi

10) Hollow silica with particle size 85 um and equilibrium fracture strength 3000 psi

11) Zerosil155, manufactured by Rhodia

12) LG H & H

13) PEG-4000

14) SONGNOX-1076

15) SP

16) SUNPRAX-682

17) BHT

18) TINUVIN770

19) ZnO- # 1 (PJ Chemtech)

20) sulfur

21) ULTRA-M

22) ULTRA-DM

23) TS

The shoe sole samples prepared at the composition ratios of Tables 1 to 2 were evaluated by the following method, and are shown in Tables 3 to 4. The physical property evaluation method of the specimen is as follows.

1) Specific gravity: It measured 5 times according to KSM6519, and took the average value. Smaller specific gravity means lighter weight.

2) Hardness: The hardness was measured according to KSM6518 (23 ° C, A type).

3) Tensile strength: measured according to KSM6518.

4) Tear strength: measured according to KSM6519.

5) NBS wear resistance: Wear resistance was measured as follows using an NBS wear tester (KSM 6625).

NBS Abrasion Resistance (%) = (Number of Times Required to Wear 1mm of Specimen) / (Number of Times Required to Wear 1mm of Standard Rubber) X100

division Example 1 Example 2 Example 3 Example 4 Example 5 Specific gravity (g / cc) 0.935 0.925 0.925 0.91 0.93 Hardness (Atype) 67 71 72 63 58 Tensile strength (kgf / cm2) 61.4 64.5 62.4 121 145 Tear strength (kgf / cm) 32.8 40.7 36 40 44 NBS wear (%) 163.8 181 210.1 287 257

division Comparative Example 1 Example 6 Example 7 Comparative Example 2 Specific gravity (g / cc) 1.11 1.1 0.98 0.93 Hardness (Atype) 70 66 66 66 Tensile strength (kgf / cm ² ) 145 143 95 40 Tear strength (kgf / cm) 52 50 53 33.9 NBS wear (%) 250 200 200 95

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (9)

delete 30 to 80 parts by weight of butadiene rubber,
3 to 35 parts by weight of syndiotactic 1,2-polybutadiene, and
100 parts by weight of a polymer material including 5 to 35 parts by weight of natural rubber; And
1 to 20 parts by weight of a hollow filler including soda-lime-borosilicate glass,
In the syndiotactic 1,2-polybutadiene, the number of 1,2-bonds relative to the total number of 1,4-bonds and 1,2-bonds is 93% or more, and the hardness ( A type) is 97 or more,
The hollow filler is a shoebreaking composition having an equilibrium fracture strength of 15000psi or more, a density of 0.1 to 1.0g / cc, the average diameter of 1 to 100㎛. 30 to 80 parts by weight of butadiene rubber,
5 to 40 parts by weight of syndiotactic 1,2-polybutadiene, and
100 parts by weight of a polymer material including 1 to 40 parts by weight of a styrene resin master batch; And
1 to 20 parts by weight of a hollow filler including soda-lime-borosilicate glass,
In the syndiotactic 1,2-polybutadiene, the number of 1,2-bonds relative to the total number of 1,4-bonds and 1,2-bonds is 93% or more, and the hardness ( A type) is 97 or more,
The hollow filler is a shoebreaking composition having an equilibrium fracture strength of 15000psi or more, a density of 0.1 to 1.0g / cc, the average diameter of 1 to 100㎛. delete delete The method according to claim 2 or 3,
The shoe sole composition is based on 100 parts by weight of the polymer material
Silica, carbon black, and any one of the fillers selected from the group consisting of 0.01 to 15 parts by weight of the shoe sole composition further comprises. The method according to claim 2 or 3,
The shoe sole composition is based on 100 parts by weight of the polymer material
0.01 to 20 parts by weight of a crosslinking agent,
0.01 to 10 parts by weight of a stabilizer,
0.1 to 5 parts by weight of activator,
0.1 to 10 parts by weight of anti-aging agent, and
Shoe sole composition further comprises 0.1 to 8 parts by weight of a vulcanization accelerator. The method according to claim 2 or 3,
The shoe sole composition is based on 100 parts by weight of the polymer material
Shoe sole composition that further comprises 0.01 to 10 parts by weight of a plasticizer. Shoes manufactured using the composition for shoe outsole according to claim 2 or 3.