KR0179712B1 - Rubber composition for bead filler of tire - Google Patents
Rubber composition for bead filler of tire Download PDFInfo
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- KR0179712B1 KR0179712B1 KR1019950065279A KR19950065279A KR0179712B1 KR 0179712 B1 KR0179712 B1 KR 0179712B1 KR 1019950065279 A KR1019950065279 A KR 1019950065279A KR 19950065279 A KR19950065279 A KR 19950065279A KR 0179712 B1 KR0179712 B1 KR 0179712B1
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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
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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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
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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
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34922—Melamine; Derivatives thereof
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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
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C08L61/14—Modified phenol-aldehyde condensates
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/06—Copolymers with styrene
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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
- B60C2001/005—Compositions of the bead portions, e.g. clinch or chafer rubber or cushion rubber
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
Abstract
본 발명은 원료 고무로 천연고무, 폴리이소프렌 고무, 폴리부타디엔 고무, 스티렌-부타디엔 고무를 사용하고, 보강제로 카본 블랙 50내지 90phr, 캐슈 변성된 페놀 수지 및/또는 캐슈 오일 5내지 20phr과, 가류제로 헥사메틸렌테트라아민 또는 헥사메톡시메틸멜라닌 1 내지 10phr을 통상의 타이어 비드 필러용 고무 배합제와 함께 사용하는 것을 특징으로 하는 타이어 비드 필러용 고무 조성물에 관한 것이다.The present invention uses natural rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene rubber as raw material rubber, carbon black 50 to 90 phr as a reinforcing agent, cashew modified phenol resin and / or cashew oil 5 to 20 phr, and as a vulcanizing agent 1 to 10 phr of hexamethylenetetraamine or hexamethoxymethylmelanin are used in combination with a conventional rubber bead filler rubber compound.
본 발명에 따르면, 가류전 미가류 타이어 비드 필러용 고무 조성물의 강성을 낮추어 가공성이 우수하고, 비드 필러용 고무 조성물의 가류 후에는 모듈러스, 인장강도 및 경도를 크게 향상시킬수 있다.According to the present invention, the stiffness of the rubber composition for unvulcanized tire bead filler before vulcanization is lowered so that the workability is excellent, and the modulus, tensile strength and hardness can be greatly improved after vulcanization of the rubber composition for bead filler.
또한, 본 발명에 따른 고무 조성물을 타이어의 비드 필러에 사용할 경우 높은 경도로 인하여 조종안정성이 양호하고, 카본 블랙의 과다한 사용을 피하여 발열에 의해 발생하는 문제를 감소시킬 수 있다.In addition, when the rubber composition according to the present invention is used for the bead filler of the tire, the steering stability is good due to the high hardness, and the problem caused by heat generation can be reduced by avoiding excessive use of carbon black.
Description
본 발명은 타이어 비드 필러용 고무 조성물에 관한 것으로, 더욱 상세하게는 캐슈 변성 페놀 수지 및/또는 캐슈 오일을 첨가하여 고무 조성물의 경도를 크게 증가시킨 타이어 비드 필러용 고무 조성물에 관한 것이다.The present invention relates to a rubber composition for tire bead fillers, and more particularly, to a rubber composition for tire bead fillers in which the hardness of the rubber composition is greatly increased by adding cashew modified phenol resin and / or cashew oil.
초고경도가 요구되는 타이어의 비드(Bead) 필러(filler)용 고무 조성물은 쇼어 A타입(Shore A type)경도계로 70 이상의 경도가 요구된다.The rubber composition for the bead filler of a tire that requires ultra high hardness is a Shore A type hardness meter, and a hardness of 70 or more is required.
종래의 비드 필러용 고무 조성물의 제조에 있어서는 경도를 향상시키기 위하여 보강성 첨가제로 카본 블랙을 과다하게 사용하거나 가류제인 황을 증가시키는 방법을 사용하였다.In the conventional production of the rubber composition for the bead filler, in order to improve the hardness, the carbon black is excessively used as a reinforcing additive or a method of increasing sulfur as a vulcanizing agent is used.
그러나, 이러한 종래의 방법은 경도 증가에 한계가 있어서, 카본 블랙을 과다하게 사용하는 것은 미가류 고무의 무니(Mooney)점도의 급격한 상승으로 롤작업 뿐만 아니라 반바리 혼합에서도 문제가 되며 가공성에 있어서도 매우 불리하고 카본 블랙을 다량 함유하는 가류고무는 발열성 조절이 어려우며, 황을 다량 사용하는 것은 압출시 황의 블루밍이 발생하여 생산 수율을 크게 저하시킨다.However, such a conventional method has a limitation in increasing hardness, and excessive use of carbon black is a problem in not only roll work but also short-barrier mixing due to the sudden increase in the Mooney viscosity of the unvulcanized rubber. It is disadvantageous that vulcanized rubber containing a large amount of carbon black is difficult to control pyrogenicity, and the use of a large amount of sulfur causes the blooming of sulfur during extrusion, which greatly reduces the production yield.
이를 개선하기 위하여는 연화 온도가 배합온도 또는 압출 온도 보다 낮은 열가소성 수지를 사용하므로써 롤 작업이나 혼합 작업성을 개선하는 방법이 있으나, 이 방법 또한 상온에서는 수지 상태로 배합 고무 내에서 존재하므로 타이어 성형시 비드 필러의 되접음(turn-up)에 불리하여 타이어 비드부에 공기가 차는 불량이 발생하게 된다.In order to improve this, there is a method of improving roll operation or mixing workability by using a thermoplastic resin having a softening temperature lower than the compounding temperature or the extrusion temperature. It is disadvantageous for the turn-up of the bead filler to cause the air to fill the tire bead portion.
본 발명의 목적은 캐슈 변성 페놀 수지 및/또는 캐슈 오일을 비드 필러용 고무 조성물에 사용하여 성형성이 우수하고 경도 및 모듈러스가 증가된 비드 필러용 고무 조성물을 제공하는 것이다.It is an object of the present invention to use a cashew modified phenol resin and / or cashew oil in a rubber composition for bead filler to provide a rubber composition for bead filler having excellent moldability and increased hardness and modulus.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명은 원료 고무로 천연고무, 폴리이소프렌 고무, 폴리부타디엔 고무, 스티렌-부타디엔 고무를 사용하고, 보강제로 카본 블랙 50 내지 90phr, 캐슈 변성된 페놀 수지 및/또는 캐슈 오일 5 내지 20phr과, 가류제로 헥사메틸렌테트라아민 또는 헥사메톡시메틸멜라닌 1 내지 10phr을 통상의 타이어 비드 필러용 고무 배합제와 함께 사용하는 것을 특징으로 하는 타이어 비드 필러용 고무 조성물인 것이다.The present invention uses natural rubber, polyisoprene rubber, polybutadiene rubber, styrene-butadiene rubber as raw material rubber, carbon black 50 to 90 phr as a reinforcing agent, cashew modified modified phenol resin and / or cashew oil 5 to 20 phr, and as a vulcanizing agent It is a rubber composition for tire bead fillers characterized by using 1 to 10 phr of hexamethylenetetraamine or hexamethoxymethylmelanin together with a rubber compound for a tire bead filler.
이하, 본 발명을 더욱 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail.
본 발명에 따른 타이어 비드 필러용 고무 조성물은 카본 블랙과 통상의 타이어 비드 필러용 고무 배합제를 함유하는 원료 고무에 캐슈 변성 페놀 수지 및/또는 캐슈 오일과 가류제로 헥사메틸렌테트라아민(HMTA) 또는 헥사메톡시메틸멜라닌(HMMM)을 첨가하여 제조된다.The rubber composition for tire bead filler according to the present invention is a hexamethylenetetraamine (HMTA) or hexa as a cashew modified phenol resin and / or cashew oil and a vulcanizing agent in a raw material rubber containing carbon black and a rubber compounding agent for a conventional tire bead filler. Prepared by the addition of methoxymethylmelanin (HMMM).
상기한 타이어 비드 필러용 고무 조성물의 원료 고무로는 천연 고무, 스티렌 부타디엔 고무, 폴리이소프렌 고무, 폴리부타디엔 고무 등을 사용할 수 있다.Natural rubber, styrene butadiene rubber, polyisoprene rubber, polybutadiene rubber, etc. can be used as a raw material rubber of the said rubber bead filler rubber composition.
본 발명에 있어서, 상기한 원료 고무에 보강제로 첨가되는 카본 블랙으로는 바람직하게는 DBP 흡유량이 70 내지 120ml/100g 이고, 질소 흡착 비표면적이 20 내지 100㎡/g인 것을 사용한다. 카본 블랙은 50 내지 90phr의 범위로 사용될 수 있다.In the present invention, the carbon black added to the raw material rubber as a reinforcing agent is preferably a DBP oil absorption of 70 to 120 ml / 100 g and a nitrogen adsorption specific surface area of 20 to 100 m 2 / g. Carbon black may be used in the range of 50 to 90 phr.
본 발명의 고무 조성물에는 캐슈 변성 페놀 수지를 사용하는데, 이 수지는 캐슈넛 셀 오일을 기본 원료로 하여 합성할 수 있다.A cashew modified phenol resin is used for the rubber composition of the present invention, which can be synthesized using cashew nut cell oil as a basic raw material.
하기 구조식으로 표시되는 캐슈 변성 페놀 수지는 HMTA과 가교반응하여 고무 조성물의 가교 고분자 사슬과 침투성 그물망을 형성하게 된다.The cashew modified phenol resin represented by the following structural formula crosslinks with HMTA to form a crosslinked polymer chain and a permeable net of the rubber composition.
또한, 캐슈 변성 페놀 수지의 양을 줄이고, 예를 들면 다음 구조식으로 표시되는 카다놀(cardanol), 카돌(cardol)등의 캐슈 오일을 첨가할 수 있다.In addition, the amount of cashew-modified phenolic resins can be reduced and cashew oils such as cardanol and cardol represented by the following structural formulas can be added.
상기한 바와 같이, 카다놀, 카돌 및 이들의 혼합물은 열에 의해 중합반응되므로 사용 목적에 따라 중합도를 조절할수 있으며, 이 화합물들은 가류제인 헥사메톡시메틸멜라닌(HMMM) 또는 헥사메틸렌테트라아민을 첨가하여 가교반응시킬수 있다. 가류제로 HMMM을 사용하는 경우, 캐슈 변성 페놀 수지, 캐슈 오일 및 HMMM간의 가교반응 메카니즘은 다음과 같다.As described above, the cardanol, the kadol and mixtures thereof are thermally polymerized so that the degree of polymerization can be adjusted according to the purpose of use, and these compounds can be added by adding a vulcanizing agent, hexamethoxymethylmelanin (HMMM) or hexamethylenetetraamine. Can be crosslinked. When using HMMM as a vulcanizing agent, the crosslinking mechanism between cashew modified phenol resin, cashew oil and HMMM is as follows.
즉, 캐슈 변성 페놀 수지 와 캐슈 오일의 H+와 HMMM의 CH3O-가 반응하여 메탄올(CH3OH)이 부산물로 생성되면서 가교 구조를 이루게 된다. 상기한 반응에서 생성되는 메탄올은 쉽게 휘발된다.That is, the cashew modified phenolic resin and the H3 of the cashew oil and the CH3O- of the HMMM react to form methanol (CH3OH) as a by-product, thereby forming a crosslinked structure. Methanol produced in the above reaction is easily volatilized.
이와 같이 캐슈 변성 페놀 수지와 캐슈 오일이 가류제로 첨가된 HMTA 또는 HMMM에 의해 가교구조를 형성함과 동시에 고무 사슬과 황으로 이루어진 가교 구조와도 침투성 그물망을 형성하여 쇼어 A타입의 경도계로 20 내지 30이상의 경도를 상승시켜 90 이상의 경도를 나타낼 수 있다.As such, the crosslinked structure is formed by HMTA or HMMM added with cashew modified phenolic resin and cashew oil as a vulcanizing agent, and also a permeable net is formed with the crosslinked structure composed of rubber chain and sulfur. The hardness of 90 or more can be represented by raising the hardness of the above.
본 발명에서 사용되는 캐슈 변성 페놀 수지는 분자량이 400 내지 1,500의 범위인 것이 바람직하다.The cashew modified phenol resin used in the present invention preferably has a molecular weight in the range of 400 to 1,500.
캐슈 오일은 경도를 유지할 뿐만 아니라 미가류 고무에서 밴드 강성을 저하시켜 되접음 작업성도 개선할 수 있다. 본 발명에서 사용되는 캐슈 오일은, 바람직하게는 25℃에서의 점도가 5,000 내지 50,000cps이고, 50℃에서의 점도는 2,000 내지 8,000 cps를 유지하고, 비중이 25℃에서 0.9 내지 1.0이며, 수 평균분자량이 300 내지 1,000이고, 분자량 분포가 1.5 내지 5.0이며 중합도가 1 내지 5인 것이다.Cashew oil not only maintains the hardness, but also reduces the band stiffness in unvulcanized rubber, thereby improving the refoldability. The cashew oil used in the present invention preferably has a viscosity at 25 ° C. of 5,000 to 50,000 cps, a viscosity at 50 ° C. to maintain 2,000 to 8,000 cps, a specific gravity of 0.9 to 1.0 at 25 ° C., and a number average. The molecular weight is 300 to 1,000, the molecular weight distribution is 1.5 to 5.0 and the degree of polymerization is 1 to 5.
상기한 캐슈 변성 페놀 수지 및/또는 캐슈 오일은 5 내지 20phr의 범위로 사용하는 것이 바람직하고, 가류제로 사용되는 HMTA와 HMMM의 사용범위는 바람직하게는 1 내지 10 phr이다.The cashew modified phenol resin and / or cashew oil described above is preferably used in the range of 5 to 20 phr, and the use range of HMTA and HMMM used as a vulcanizing agent is preferably 1 to 10 phr.
본 발명의 고무 조성물로 제조된 타이어 비드 필러 고무로는 75 내지 99정도의 경도를 얻을 수 있다.As the tire bead filler rubber made of the rubber composition of the present invention, a hardness of about 75 to 99 can be obtained.
본 발명에 따라 타이어 비드 필러용 고무 조성물에 캐슈 변성 페놀 수지와 캐슈 오일을 사용하므로써, 가류전 미가류 고무 조성물의 강성을 낮추어 가공성에 매우 유리하게 작용할 수 있으며, 비드 필러용 고무 조성물로 가류 후에 모듈러스, 인장강도 및 경도를 크게 향상시킬 수 있다.By using the cashew modified phenolic resin and cashew oil in the rubber composition for tire bead fillers according to the present invention, it is possible to lower the rigidity of the unvulcanized rubber composition before vulcanization and to work very advantageously in workability, and modulus after vulcanization with the rubber composition for bead filler The tensile strength and hardness can be greatly improved.
본 발명에 따른 고무 조성물을 타이어의 비드 필러에 사용할 경우 높은 경도로 인하여 조종안정성이 양호하고, 카본 블랙의 과다한 사용을 피하여 발열에 의해 발생하는 문제를 감소시킬 수 있다.When the rubber composition according to the present invention is used for the bead filler of a tire, the steering stability is good due to the high hardness, and the problem caused by heat generation can be reduced by avoiding excessive use of carbon black.
이하, 본 발명을 실시예에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail by way of examples.
[실시예 1]Example 1
천연고무 60phr과 스티렌-부타디엔 고무 40phr에 HAF 25phr, GPF 50phr, 캐슈 변성 페놀 수지 15phr, 황 2.5phr 및 NS 1.7phr을 혼합하고 HMTA 5phr을 첨가하여 타이어 비드 필러용 고무 조성물을 제조하였다.A rubber composition for a tire bead filler was prepared by mixing HAphr 25phr, GPF 50phr, cashew modified phenol resin 15phr, sulfur 2.5phr and NS 1.7phr with 60phr of natural rubber and 40phr of styrene-butadiene rubber.
얻어진 고무 조성물로 타이어 비드 필러 시편을 제조하여 쇼어 A타입 경도계로 실온에서 경도를 측정하고, 100% 응력과 밴드 강성을 측정하여, 표 1에 기재하였다.Tire bead filler specimens were prepared from the obtained rubber composition, the hardness was measured at room temperature using a Shore A type hardness tester, 100% stress and band stiffness were measured, and are shown in Table 1 below.
[실시예 2]Example 2
천연고무 60phr과 스티렌-부타디엔 고무 40phr에 HAF 30phr, GPF 50phr, 캐슈 변성 페놀 수지 10phr, 캐슈 오일 5phr,황 2.5phr 및 NS 3.0phr을 혼합하고 HMTA 5phr을 첨가하여 타이어 비드 필러용 고무 조성물을 제조하였다.A rubber composition for tire bead filler was prepared by mixing 60 phr of natural rubber with 40 styrene of styrene-butadiene rubber, 30 phr of HAF, 50 phr of GPF, 10 phr of cashew modified phenolic resin, 5 phr of cashew oil, 2.5 phr of sulfur and NS 3.0 phr and 5 phr of HMTA. .
얻어진 고무 조성물로 타이어 비드 필러 시편을 제조하여 쇼어 A타입 경도계로 실온에서 경도를 측정하고, 100% 응력과 밴드 강성을 측정하여, 표 1에 기재하였다.Tire bead filler specimens were prepared from the obtained rubber composition, the hardness was measured at room temperature using a Shore A type hardness tester, 100% stress and band stiffness were measured, and are shown in Table 1 below.
[비교예 1]Comparative Example 1
천연고무 60phr과 스티렌-부타디엔 고무 40phr에 HAF 35phr, GPF 55phr, 황 2.5phr 및 NS 1.7phr을 첨가하고 혼합하여 타이어 비드 필러용 고무 조성물을 제조하였다.A rubber composition for tire bead filler was prepared by adding and mixing HAF 35 phr, GPF 55 phr, sulfur 2.5 phr and NS 1.7 phr to 60 phr of natural rubber and 40 styrene of styrene-butadiene rubber.
얻어진 고무 조성물로 타이어 비드 필러 시편을 제조하여 쇼어 A타입 경도계로 실온에서 경도를 측정하고, 100% 응력과 밴드 강성을 측정하여, 표 1에 기재하였다.Tire bead filler specimens were prepared from the obtained rubber composition, the hardness was measured at room temperature using a Shore A type hardness tester, 100% stress and band stiffness were measured, and are shown in Table 1 below.
*1 NS : N-tert-부틸-2-벤조티아졸릴-설펜아미드* 1 NS: N-tert-butyl-2-benzothiazolyl-sulfenamide
*2 100% 응력 : Instron 인장시험(실온)* 2 100% stress: Instron tensile test (room temperature)
*3 밴드 강성 : 미가류 고무 샘플(50×10×2mm)에 대하여 실온에서 3점 밴드 강성 시험을 실시하여 측정한 미가류 고무의 밴드 강성* 3 Band Stiffness: Band stiffness of unvulcanized rubber, measured by performing a 3-point band stiffness test at room temperature, on an unvulcanized rubber sample (50 × 10 × 2 mm).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950065279A KR0179712B1 (en) | 1995-12-29 | 1995-12-29 | Rubber composition for bead filler of tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950065279A KR0179712B1 (en) | 1995-12-29 | 1995-12-29 | Rubber composition for bead filler of tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970042729A KR970042729A (en) | 1997-07-26 |
| KR0179712B1 true KR0179712B1 (en) | 1999-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950065279A KR0179712B1 (en) | 1995-12-29 | 1995-12-29 | Rubber composition for bead filler of tire |
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| Country | Link |
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| KR (1) | KR0179712B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888134B1 (en) * | 2007-10-31 | 2009-03-13 | 금호타이어 주식회사 | Bead filler rubber composition with improved processing property |
| KR100964308B1 (en) * | 2008-04-25 | 2010-06-16 | 금호타이어 주식회사 | Tire rubber composition |
| KR20130082035A (en) * | 2012-01-10 | 2013-07-18 | 주식회사 인프라웨어 | Method for intuitive interworking between internet service and text, and computer-readable recording medium with intuitive interworking program between internet service and text |
| WO2015005568A1 (en) * | 2013-07-12 | 2015-01-15 | 주식회사 엠엔비그린어스 | Novel cardanol-based organic vulcanizing agent, production method for same and blended rubber composition for tyres using same |
-
1995
- 1995-12-29 KR KR1019950065279A patent/KR0179712B1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888134B1 (en) * | 2007-10-31 | 2009-03-13 | 금호타이어 주식회사 | Bead filler rubber composition with improved processing property |
| KR100964308B1 (en) * | 2008-04-25 | 2010-06-16 | 금호타이어 주식회사 | Tire rubber composition |
| KR20130082035A (en) * | 2012-01-10 | 2013-07-18 | 주식회사 인프라웨어 | Method for intuitive interworking between internet service and text, and computer-readable recording medium with intuitive interworking program between internet service and text |
| WO2015005568A1 (en) * | 2013-07-12 | 2015-01-15 | 주식회사 엠엔비그린어스 | Novel cardanol-based organic vulcanizing agent, production method for same and blended rubber composition for tyres using same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970042729A (en) | 1997-07-26 |
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