KR100425664B1 - Rubber composition for under tread of truck and bus tire - Google Patents
Rubber composition for under tread of truck and bus tire Download PDFInfo
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- KR100425664B1 KR100425664B1 KR10-2001-0073255A KR20010073255A KR100425664B1 KR 100425664 B1 KR100425664 B1 KR 100425664B1 KR 20010073255 A KR20010073255 A KR 20010073255A KR 100425664 B1 KR100425664 B1 KR 100425664B1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/06—Sulfur
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/43—Compounds containing sulfur bound to nitrogen
- C08K5/44—Sulfenamides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
- C08L5/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Abstract
본 발명은 키틴을 보강제로 사용하는 트럭·버스용 타이어의 언더 트레드용 고무조성물에 관한 것으로서, 천연고무 100 중량부에 대하여 카본블랙 20∼40 중량부와 키틴 2∼20 중량부를 혼합하여 첨가하여 종래의 카본블랙의 일부를 키틴으로 대체시킨 결과, 내칩컷 성능, 내마모성 및 저발열 성능이 동시에 개선될 뿐만 아니라 환경친화적인 고무조성물을 제공한다.The present invention relates to a rubber composition for under tread of a tire for trucks and buses using chitin as a reinforcing agent, and is added by mixing 20 to 40 parts by weight of carbon black and 2 to 20 parts by weight of chitin with respect to 100 parts by weight of natural rubber. As a result of replacing a portion of carbon black of chitin, the chip cut resistance, abrasion resistance and low heat generation performance are simultaneously improved, and an environmentally friendly rubber composition is provided.
Description
본 발명은 비포장 도로 즉, 산악 지형이나 자갈이 많은 도로, 그리고 공사장 주변의 도로를 주행하는 트럭·버스용 타이어의 언더 트레드용 고무조성물에 관한 것으로서, 더욱 상세하게는 카본블랙의 일부를 키틴으로 대체시킴으로써 환경친화적이며, 내칩컷 성능, 내마모성 및 저발열 성능을 동시에 향상시킬 수 있는 고무 조성물에 관한 것이다.The present invention relates to a rubber composition for under-tread of tires for trucks and buses traveling on unpaved roads, that is, mountainous or gravel roads, and roads around construction sites. More specifically, a part of carbon black is replaced by chitin. The present invention relates to a rubber composition that is environmentally friendly and can simultaneously improve chip cut performance, wear resistance, and low heat generation performance.
타이어 개발의 대부분은 구조적 측면과 타이어에 사용되는 재료의 응용 기술 개발로 집약될 수 있으며, 특히 재료 부분에서는 에너지 절약 측면 및 환경문제를 중시하는 타이어의 개발에 대부분의 연구가 이루어지고 있다.Most of the development of tires can be concentrated on the development of structural aspects and application technologies of materials used in tires. In particular, most researches have been made on the development of tires that focus on energy saving aspects and environmental problems.
일반적으로 국내 및 해외 시장에서 소비자들에게 직접적으로 나타나는 품도문제는 주로 내칩컷 성능과 내마모 성능이다. 최근, 재료 측면에서 이루어지고 있는 타이어 개발 방향은 저연비용 타이어, 고내마모성 타이어, 고제동성 타이어 및 내칩컷성(chip-cut resistance)을 향상시킨 타이어라고 할 수 있다.In general, quality problems that appear directly to consumers in the domestic and overseas markets are mainly chip cut performance and wear resistance performance. In recent years, the tire development direction that has been made in terms of materials can be said to be a tire having a low fuel cost tire, a high wear resistant tire, a high braking tire, and a chip-cut resistance.
이 중에서 내칩컷 성능은 내마모 성능과 마찬가지로 저연비 성능과 반비례되는 특성을 가지고 있기 때문에, 저연비 성능을 향상시키면 내칩컷 성능은 저하되는 특성을 가지고 있다.Among these, chip-resistant performance is inversely proportional to low fuel efficiency as well as abrasion resistance. Therefore, if the low fuel efficiency is improved, the chip-cut performance is deteriorated.
그러나, 사용조건이 가혹한 지역에서 사용되는 타이어에 있어서, 트레드부의 마모가 모두 진행된 후에 지면과 닿는 부분은 바로 언더트레드 부분이지만, 이 부분에 대한 내칩컷 성능이나 내마모 성능보다는 내구와 저연비 성능을 위한 저발열 화합물을 채용한 것이 대부분이었다.However, in the tires used in the harsh conditions of use, after the tread is worn out, the part contacting the ground is the undertread part, but for durability and low fuel consumption performance, rather than chip cut or wear resistance. Most of them adopted a low heat generation compound.
한편, 이러한 언더트레드 부분의 내칩컷 성능을 향상시키기 위한 종래기술로는 실리카를 일정량 혼입하거나, 카본블랙을 과량 투여하여 고탄성을 유지하는 방법, 특정 수지를 일정량 혼입하는 경우, 또는 가교구조를 조절하여 저발열 고탄성 화합물을 적용하는 예들이 있었다.On the other hand, the prior art for improving the chip cut resistance of the under-tread portion is a method of maintaining a high elasticity by mixing a certain amount of silica or by administering an excessive amount of carbon black, when a certain amount of a specific resin is mixed, or by adjusting the crosslinking structure There have been examples of applying a low fever high elastic compound.
한편, 일반적인 보강제로 가장 널리 사용되는 것은 석유에서 얻어지는 카본 블랙이지만, 최근 미국특허 제 5,672,639호 에서는 옥수수, 감자, 쌀과 같은 식물로부터 얻어지는 전분(starch)을 보강제로 사용한 환경 친화적인 고무조성물 및 이를 포함하는 타이어를 제시하였다.On the other hand, the most widely used as a general reinforcing agent is carbon black obtained from petroleum, but US Patent No. 5,672,639 recently included environmentally friendly rubber composition using starch (starch) obtained from plants such as corn, potatoes, rice as a reinforcement and Presented a tire.
그러나, 상기 조성물은 전분 자체의 연화점이 200℃로서 고무의 가공온도인 140∼170℃와 다르기 때문에 서로 잘 섞이지 않아, 이를 극복하기 위하여 폴리(에틸렌비닐 알콜)과 같은 다른 고분자를 혼합하여 전분의 연화점을 낮추어 고무와의 가공성을 용이하게 하였다.However, since the softening point of the starch itself is different from 140 to 170 ° C., which is the processing temperature of rubber, the composition does not mix well with each other. In order to overcome this, the softening point of starch is mixed by mixing other polymers such as poly (ethylene vinyl alcohol). The lowering facilitated the workability with rubber.
따라서 상기의 방법은 전분의 연화점을 낮추기 위하여 폴리(에틸렌비닐 알콜)을 전분과 혼합시키기 위한 별도의 전처리 공정이 필요하기 때문에 고무조성물에서 충진제로 사용하는 데 번거롭고, 경제적이지 못하다는 단점이 있었다.Therefore, the above method requires a separate pretreatment process for mixing poly (ethylenevinyl alcohol) with starch in order to lower the softening point of the starch, which is disadvantageous in that it is cumbersome to use as a filler in a rubber composition and is not economical.
또한, 한국 특허 공개 제 2000-74059호 에서는 키틴을 보강제로 사용하여 그립성능과 회전저항을 향상시킨 트레드 고무 조성물을 제시하였는 바, 이때 사용한 키틴은 다른 고분자 물질을 첨가하지 않고도 고무와의 가공성은 향상시킬 수 있었지만, 상기 고무조성물은 승용차용 래디알 타이어에 주로 사용되는 것이므로 트럭 ·버스용 타이어의 언더 트레드용으로 사용하는 데는 제한적이었다.In addition, Korean Patent Laid-Open Publication No. 2000-74059 proposed a tread rubber composition having improved grip performance and rotational resistance by using chitin as a reinforcing agent. The chitin used at this time improves processability with rubber without adding other polymer materials. Although the said rubber composition is mainly used for the radial tire for passenger cars, it was limited to use for the under tread of truck and bus tires.
또한, 종래 키틴을 사용한 트레드용 타이어의 경우는 승용차용 레디얼 타이어에 사용되는 것으로서 그립성능과 회전저항이 우수한 반면, 컷 앤드 칩 성능에서는 효과가 반감되는 문제가 있었다.In addition, in the case of a tread tire using a conventional chitin, which is used for a radial tire for a passenger car, the grip performance and rotation resistance are excellent, but the effect is halved in the cut and chip performance.
따라서, 키틴을 보강제로서 첨가하여 그립성능과 회전저항이 우수하면서도 내칩컷 성능이 우수한 트럭·버스용 타이어의 언더 트레드용으로 사용할 수 있는 고무 조성물의 개발이 시급한 실정이다.Therefore, there is an urgent need to develop a rubber composition that can be used for the under tread of truck and bus tires by adding chitin as a reinforcing agent and having excellent grip performance and rolling resistance and excellent chip cut resistance.
이에 본 발명자는 기 특허출원된 바와 같은 키틴을 보강제로 사용한 트레드 고무 조성을 트럭·버스용 타이어의 언더트레드 부위의 내칩컷 성능과 마모성능 및 저발열 특성을 향상시킬 수 있는 고무조성물로 보다 적합하도록 조성하기 위해 연구노력한 결과, 원료고무로서 천연고무만을 사용하고 종래 카본 블랙의 일부를 자연으로부터 쉽게 얻을 수 있는 키틴을 보강제로 대체하면서 적정 혼합량을 찾고 커플링제를 첨가하지 않은 결과, 종래의 카본 블랙만을 충진재로 사용한 고무조성물보다 환경친화적일 뿐만 아니라 다른 고분자와 혼합하는 전처리 공정 없이도 사용될 수 있으며, 내마모성 및 저발열 특성, 특히 내칩컷 성능을 향상시킬 수 있음을 알게 되어 본 발명을 완성하게 되었다.Therefore, the present inventors have made the tread rubber composition using chitin as a reinforcing agent to be more suitable as a rubber composition that can improve chip cut resistance, wear performance, and low heat generation characteristics of the under-tread of truck and bus tires. As a result of research efforts, only natural carbon black is used as a raw material rubber, and a portion of conventional carbon black is replaced with chitin, which can be easily obtained from nature, with a reinforcing agent, and a suitable mixing amount is not added. In addition to being more environmentally friendly than the rubber composition as used, it can be used without a pretreatment process to mix with other polymers, it has been found that it can improve the wear resistance and low heat generation properties, in particular chip cut resistance has been completed the present invention.
따라서, 본 발명의 목적은 내칩컷 성능, 내마모성능 및 저발열 성능이 우수한 특성을 나타낼 수 있는 트럭·버스용 타이어의 언더트레드용 고무 조성물을 제공하는 데 있다.Accordingly, an object of the present invention is to provide a rubber composition for under tread of a truck / bus tire that can exhibit excellent chip cut performance, abrasion resistance, and low heat generation performance.
이와같은 목적을 달성하기 위한 본 발명은 천연고무 100 중량부에 대하여 카본블랙 20∼40 중량부, 키틴 2∼20 중량부, 활성산화아연 2∼10 중량부, 스테아린산 1∼5 중량부, 황 1∼5 중량부, 설펜아미드계 가류촉진제 1∼5 중량부 및 노화방지제 1∼2 중량부로 이루어진 것임을 그 특징으로 한다.The present invention for achieving the above object is 20 to 40 parts by weight of carbon black, 2 to 20 parts by weight of chitin, 2 to 10 parts by weight of zinc oxide, 1 to 5 parts by weight of stearic acid, sulfur 1 It is characterized by consisting of-5 parts by weight, 1 to 5 parts by weight of sulfenamide-based vulcanization accelerator and 1 to 2 parts by weight of anti-aging agent.
이와같은 본 발명을 더욱 상세하게 설명하면 다음과 같다.The present invention will be described in more detail as follows.
본 발명은 트럭·버스용 타이어의 언더트레드용 고무조성물에 보강제로서 카본 블랙과 키틴을 첨가한 것이다.The present invention adds carbon black and chitin as reinforcing agents to rubber compositions for under tread of truck and bus tires.
본 발명에서 사용하는 키틴은 곤충의 단단한 껍질이나 바닷게 껍질의 주성분을 이루는 천연 고분자로서 그 구조는 다음 화학식 1과 같으며, 2번 탄소의 위치에 아세틸화 아미노기를 가진 것이 종래 기술에서 사용한 전분과 다른 것이다.Chitin used in the present invention is a natural polymer constituting the main component of the insect's hard shell or sea crab shell, the structure of which is represented by the following formula (1), having a acetylated amino group at the position of carbon 2 is different from the starch used in the prior art will be.
본 발명에서 사용한 키틴은 알드리치(Aldrich)사의 제품을 갈아 400 메쉬 이하의 입자크기로 만들어 사용하며, 그 함량은 천연고무 100 중량부에 대하여 2∼20 중량부로 한다.Chitin used in the present invention is used to grind Aldrich's product to a particle size of 400 mesh or less, the content is 2 to 20 parts by weight based on 100 parts by weight of natural rubber.
만일, 상기 키틴의 함량이 2 중량부 미만일 경우 그립성능의 향상을 기대할 수 없으며, 20 중량부를 초과할 경우 회전저항 성능이 향상되지 않기 때문이다.If the content of the chitin is less than 2 parts by weight, it is not expected to improve the grip performance, and if it exceeds 20 parts by weight, the rotational resistance performance is not improved.
또한, 본 발명에서는 천연고무 100 중량부에 대하여 카본 블랙을 20∼40 중량부 첨가한다. 20 중량부 미만을 사용하면 보강성이 떨어지고, 40 중량부를 초과하면 언더트레드부의 발열이 증가하기 때문이다.In the present invention, 20 to 40 parts by weight of carbon black is added to 100 parts by weight of natural rubber. If less than 20 parts by weight, the reinforcement is inferior, and if more than 40 parts by weight increases the heat generation of the under-tread portion.
또한, 본 발명에서는 상기 조성 이외에도 통상의 트레드용 고무 조성물에 포함될 수 있는 첨가제를 첨가할 수 있음은 물론이다.In addition, in the present invention, it is a matter of course that an additive which may be included in the rubber composition for tread in addition to the above composition can be added.
구체적으로는, 활성산화아연 2∼10 중량부, 스테아린산 1∼5 중량부, 황 1∼5 중량부, 설펜아미드계 가류촉진제 1∼5 중량부 및 노화방지제 1∼2 중량부로 첨가할 수 있다.Specifically, 2 to 10 parts by weight of zinc oxide, 1 to 5 parts by weight of stearic acid, 1 to 5 parts by weight of sulfur, 1 to 5 parts by weight of sulfenamide-based vulcanization accelerator, and 1 to 2 parts by weight of anti-aging agent can be added.
그러나, 본 발명의 고무조성물에서는 별도의 실란 커플링제를 첨가하지 않는바, 만일 실란 커플링제를 첨가한 경우에는 60℃ tan δ성능, 인장강도 및 마모성능은 동등 이상이나 컷 앤드 칩 성능이 떨어지게 되어 트럭·버스용 타이어로 부적합하기 때문이다.However, in the rubber composition of the present invention, a separate silane coupling agent is not added. If the silane coupling agent is added, 60 ° C. tan δ performance, tensile strength, and abrasion performance are equivalent or higher, but cut-and-chip performance is inferior. This is because it is unsuitable for tires for trucks and buses.
이하, 본 발명을 실시예에 의거하여 더욱 상세히 설명하면 다음과 같으며, 본 발명이 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.
실시예 1∼3Examples 1 to 3
다음 표 1에 나타낸 구성성분과 조성비로 고무 조성물을 제조하였으며, 반바리 믹서를 사용해 배합한 후, 160℃에서 방출하였다.Next, the rubber composition was prepared using the components and the composition ratios shown in Table 1 below, and the mixture was mixed using a short-barrier mixer, and then discharged at 160 ° C.
이렇게 얻어진 고무 제품에 대한 물성을 다음과 같이 평가하였으며, 그 결과를 다음 표 2에 나타내었다.The physical properties of the rubber product thus obtained were evaluated as follows, and the results are shown in Table 2 below.
* 마모도(g) : Lambourn 마모도 실시예 1을 기준으로 지수화한 것임. 수치가 높을수록 마모 성능이 우수함.* Wear degree (g): Lambourn wear is also indexed based on Example 1. The higher the value, the better the wear performance.
* 동적손실계수(60℃) : RDS로 측정하였으며, 회전저항 특성을 나타내며, 수치가 낮을수록 성능이 우수함.* Dynamic loss factor (60 ℃): Measured by RDS, it shows the rolling resistance. The lower the value, the better the performance.
*티어링(tearing) 측정 : 티어링 시험을 수행한 후 비교예 1을 100으로 환산하여 나타낸 것으로서, 수치가 높을수록 칩컷 성능이 우수함.* Tearing (tearing) measurement: After performing a tearing test, Comparative Example 1 is shown in terms of 100, the higher the value, the better the chip cut performance.
* 컷 앤드 칩(g) : 칩컷 지수는 당사 고유 시험기(chip-cut tester)를 이용하여 측정한 결과로 중량 감소량을 측정하여 지수화한 것으로서, 그 값이 높을수록 칩컷 성능이 우수함.* Cut-and-Chip (g): The chip cut index is a result of measuring the weight loss by using a chip-cut tester of our company. The higher the value, the better the chip cut performance.
비교예 1∼2Comparative Examples 1 and 2
보강제로서 키틴을 사용하지 않고, 카본블랙과 실리카를 사용한 것을 제외하고는 다음 표 1에 나타낸 구성성분과 조성비로 상기 실시예에서와 동일한 방법으로 고무 조성물을 제조하였다.A rubber composition was prepared in the same manner as in the above examples, except that carbon black and silica were used as the reinforcing agents, and carbon black and silica were used in the components and composition ratios shown in Table 1 below.
이렇게 얻어진 고무 제품에 대한 물성을 다음과 같이 평가하였으며, 그 결과를 다음 표 2에 나타내었다.The physical properties of the rubber product thus obtained were evaluated as follows, and the results are shown in Table 2 below.
상기 표 2의 결과로부터, 본 발명에 따른 비포장 도로용 트럭·버스용 타이어 트레드는 마모성능과 컷앤드칩 성능이 향상되어, 주행중 마모가 진행된 후에도 마모성능과 컷앤드칩 성능을 유지할 수 있음을 보여주고 있다. 또한 60℃에서 측정한 동적손실계수(tan δ)도 동등이상 유리한 값을 나타내는 것으로 보아 저발열 특성을 가짐으로 내구성이 우수한 것을 보여주고 있다.From the results of Table 2, the tire tread for off-road trucks and buses according to the present invention is improved wear performance and cut-and-chip performance, it can be seen that the wear performance and cut-and-chip performance can be maintained even after the wear progress while driving Giving. In addition, the dynamic loss coefficient (tan δ) measured at 60 ℃ also shows an advantageous value equal to or more, showing that it has excellent durability by having a low heat generation characteristics.
한편, 종래 기술에서와 같이 실란 커플링제를 투입한 비교예 3의 경우 동적손실계수, 인장강도, 마모성능은 동등 이상이나 컷앤드칩 성능이 떨어지는 것으로 나타났다.On the other hand, in the case of Comparative Example 3 in which the silane coupling agent was added as in the prior art, the dynamic loss coefficient, tensile strength, and abrasion performance were equal or more, but the cut-and-chip performance was inferior.
이상에서 상세히 설명한 바와 같이, 본 발명에 따라 트럭·버스용 타이어의 언더트레드용 고무 조성물에서 원료고무로서 천연고무를 사용하고, 보강제로서 카본블랙의 일부를 키틴으로 대체시켜 적정양으로 혼합하고 별도의 커플링제를 사용하지 않은 결과, 내칩컷 성능, 내마모성 및 저발열 성능이 동시에 향상된 효과를 보일 뿐만 아니라 환경친화적인 고무조성물을 제공한다.As described in detail above, in the rubber composition for under tread of truck and bus tires according to the present invention, natural rubber is used as a raw material rubber, and a portion of carbon black is replaced with chitin as a reinforcing agent and mixed in an appropriate amount. As a result of the absence of the coupling agent, the chip cut performance, the wear resistance and the low heat generation performance are simultaneously improved and provide an environmentally friendly rubber composition.
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| KR10-2001-0073255A KR100425664B1 (en) | 2001-11-23 | 2001-11-23 | Rubber composition for under tread of truck and bus tire |
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| KR100698957B1 (en) | 2005-10-12 | 2007-03-23 | 한국타이어 주식회사 | Rubber composition of the under-tread for truck/bus |
| KR100971728B1 (en) * | 2008-06-30 | 2010-07-22 | 금호타이어 주식회사 | Rubber Composition For Passenger Car Carcass Including BCDD |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62252459A (en) * | 1986-04-24 | 1987-11-04 | Hyogo Pref Gov | Moisture absorbing and releasing composition and production thereof |
| KR930017954A (en) * | 1992-02-12 | 1993-09-20 | 칼 에이치, 크루코우 | How to incorporate chitosan reinforced tires and chitosan into elastomers |
| JPH05287130A (en) * | 1992-04-07 | 1993-11-02 | Michelin Okamoto Tire Kk | Rubber composition for tire tread |
| KR20000074059A (en) * | 1999-05-18 | 2000-12-05 | 조충환 | Rubber composition for tread of pneumatic tire using chitin as a reinforcing agent |
| KR20020089889A (en) * | 2001-05-25 | 2002-11-30 | 한국타이어 주식회사 | Tire tread composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62252459A (en) * | 1986-04-24 | 1987-11-04 | Hyogo Pref Gov | Moisture absorbing and releasing composition and production thereof |
| KR930017954A (en) * | 1992-02-12 | 1993-09-20 | 칼 에이치, 크루코우 | How to incorporate chitosan reinforced tires and chitosan into elastomers |
| JPH05287130A (en) * | 1992-04-07 | 1993-11-02 | Michelin Okamoto Tire Kk | Rubber composition for tire tread |
| KR20000074059A (en) * | 1999-05-18 | 2000-12-05 | 조충환 | Rubber composition for tread of pneumatic tire using chitin as a reinforcing agent |
| KR20020089889A (en) * | 2001-05-25 | 2002-11-30 | 한국타이어 주식회사 | Tire tread composition |
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