KR100504336B1 - Radial tires for passenger cars with side parts extruded rubber chafer - Google Patents
Radial tires for passenger cars with side parts extruded rubber chafer Download PDFInfo
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- KR100504336B1 KR100504336B1 KR10-1998-0038630A KR19980038630A KR100504336B1 KR 100504336 B1 KR100504336 B1 KR 100504336B1 KR 19980038630 A KR19980038630 A KR 19980038630A KR 100504336 B1 KR100504336 B1 KR 100504336B1
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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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
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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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
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- Engineering & Computer Science (AREA)
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- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
본 발명은 고무 채퍼(rubber chafer)를 압출한 사이드부를 갖는 승용차용 래디알 타이어에 관한 것이다.The present invention relates to a radial tire for a passenger car having a side portion extruded a rubber chafer.
본 발명은 고무 채퍼가 림쿠션과 사이드 월의 고무와 함께 압출되어 형성된 사이드부를 갖는 것을 특징으로 하는 승용차용 래디알 타이어를 제공하기 위한 것이다.The present invention is to provide a radial tire for a passenger car, characterized in that the rubber chaper has a side portion formed by being extruded together with the rubber of the rim cushion and the side wall.
본 발명의 의한 승용차용 래디알 타이어는 타 부위와의 점착 및 접착성이 높은 고무 조성물로 만든 채퍼를 타이어의 사이드 윌와 림쿠션 압출시 함께 압출하는 사이드부를 가지므로, 타이어의 제조 공정을 단순화하고 타이어의 제조 중 섬유 채퍼로 인해 생기는 불량을 현저히 감소시킬 수 있다.The radial tire for a passenger car according to the present invention has a side portion for extruding a chafer made of a rubber composition having high adhesion and adhesion to other parts at the time of extruding the tire with the side wheel of the tire, thereby simplifying the tire manufacturing process and It is possible to significantly reduce the defects caused by the fiber chaper during the production of.
Description
본 발명은 고무 채퍼를 압출한 사이드부를 갖는 승용차용 래디알 타이어에 관한 것이다. 더욱 상세하게는 모둘러스가 높고 영구변형율이 적은 고무 조성물을 사용하여 만든 고무채퍼를 사이드 월(side wall)과 림쿠션 압출시 함께 압출하여 형성되는 사이드부를 갖는 승용차용 래디알 타이어를 제공하기 위한 것이다.The present invention relates to a radial tire for a passenger car having a side portion from which a rubber chafer is extruded. More specifically, the present invention provides a radial tire for a passenger vehicle having a side portion formed by extruding a rubber chaper made of a rubber composition having a high modulus and a low permanent strain, together with the side wall and the rim cushion extrusion. .
타이어의 비드부 외곽은 차량의 휠과 맞닿아 있어 굉장히 큰 외력을 받고 있다. 따라서 이러한 외력이 타이어의 비드부의 외곽에 고르게 작용하게 하고 변형을 줄이기 위해 폴리에스테르 또는 나일론 섬유에 고무를 입혀 사용하여 왔다(이러한 반제품을 타이어 산업에서는 채퍼라 부른다).The outside of the bead of the tire is in contact with the wheel of the vehicle and receives a great external force. Thus, these external forces have been used to rubberize polyester or nylon fibers to evenly act on the outside of the bead of the tire and to reduce deformation (these semi-finished products are called chafers in the tire industry).
그런데, 이러한 섬유 채퍼를 타이어의 비드부 최 외곽에 사용할 경우는 채퍼 제조를 위한 별도 공정이 필요하고, 타이어 성형 작업시에 채퍼를 정확한 위치에 붙여야 하는 번거로움이 있다. 채퍼를 정확한 위치에 붙이지 않았거나 성형 후 압착 과정에서 채퍼가 밀려 겹쳐질 경우 타이어 불량의 원인이 된다. However, when the fiber chaper is used on the outermost bead of the tire, a separate process for manufacturing the chaper is required, and the tire has to be attached to the correct position when forming the tire. If the chaper is not attached to the correct position or if the chaper is pushed and overlapped during the molding process, the tire may be defective.
이러한 타이어 채퍼 부위가 지녀야 할 주요 특성은 주위의 타 부위와 잘 점착되면서 높은 모둘러스를 지녀야 하며 영구변형율이 적어야 한다.The main characteristics of this tire chaper should have high modulus while adhering well with other parts of the surrounding area, and have a low permanent strain.
이에 본 발명은 종래의 섬유 채퍼를 사용함으로써 생기는 타이어의 불량을 최소화하기 위하여, 모둘러스가 높고 영구변형율이 적은 고무 조성물을 사용하여 만든 고무 채퍼를 종래의 채퍼를 사용할 때 필요한 별도의 공정 없이 타이어의 사이드 월과 림쿠션 압출시 함께 압출하여 형성된 사이드부를 갖는 것을 특징으로 하는 승용차용 래디알 타이어를 제공하는 것을 목적으로 한다.Accordingly, the present invention provides a rubber chaper made of a rubber composition with high modulus and a low permanent strain to minimize tire defects caused by using a conventional fiber chaper. It is an object of the present invention to provide a radial tire for a passenger car, characterized in that it has a side portion formed by extruding together during sidewall and rim cushion extrusion.
본 발명은 고무 채퍼가 림쿠션과 사이드 월의 고무와 함께 압출되어 형성된 사이드부를 갖는 것을 특징으로 하는 승용차용 래디알 타이어를 제공하기 위한 것이다.The present invention is to provide a radial tire for a passenger car, characterized in that the rubber chaper has a side portion formed by being extruded together with the rubber of the rim cushion and the side wall.
이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.
본 발명의 승용차용 래디알 타이어의 사이드부는 도 1(a : 고무 채퍼의 폭, t : 고무 채퍼의 두께)과 같은 형태의 단면으로 다종 복합 고무(채퍼 부위를 포함)를 압출하여야 한다. 그 이유는 도 1과 같은 형태로 사이드부가 압출되면 승용차용 래디알 타이어의 제조 공정을 간단하게 하고 불량률을 줄일 수 있기 때문이다.The side portion of the radial tire for a passenger car of the present invention must extrude multiple composite rubbers (including the chaper portion) into a cross section of the form as shown in FIG. 1 (a: width of the rubber chafer, t: thickness of the rubber chafer). The reason is that when the side portion is extruded in the form as shown in Fig. 1, the manufacturing process of the radial tire for a passenger car can be simplified and the defective rate can be reduced.
상기 사이드부에서 고무 채퍼에 해당되는 폭은 35 내지 55㎜이고 두께는 0.5 내지 1.5㎜이다.The width corresponding to the rubber chafer in the side portion is 35 to 55 mm and the thickness is 0.5 to 1.5 mm.
도 1에서 상기 고무 채퍼 부위(11)의 고무로는 타 부위 고무, 즉 림쿠션 부위(12)와 사이드 월 부위(13)의 고무와의 점착 및 공가류 특성이 뛰어나고, 모둘러스가 높으며 외력에 의한 영구변형율이 낮은 특성을 갖는 고무 조성물을 사용하여야 한다.In FIG. 1, the rubber of the rubber chaper portion 11 is excellent in adhesion and co-occurrence characteristics of the rubber of the other portion, that is, the rubber of the rim cushion portion 12 and the side wall portion 13, has a high modulus and an external force. Should be used a rubber composition having a property of low permanent strain.
따라서, 본 발명의 고무 채퍼는 천연 고무 또는 스티이렌-부타디엔 공중합 고무 20 내지 80 중량부와 폴리부타디엔 고무 20 내지 80 중량부로 구성된 원료 고무 100 중량부에 대해 카본 블랙을 70 내지 100 중량부, 페놀 타입 수지 0.1 내지 6 중량부 및 통상의 첨가제로를 배합하여서 된 것이다.Therefore, the rubber chafer of the present invention is 70 to 100 parts by weight of carbon black, 100 to 5 parts by weight of raw material rubber composed of 20 to 80 parts by weight of natural rubber or styrene-butadiene copolymer rubber and 20 to 80 parts by weight of polybutadiene rubber, phenol type It is made by mix | blending 0.1-6 weight part of resin and a normal additive.
본 발명에서 천연 고무 또는 부타디엔 공중합 고무를 사용하는 이유는 주위에 사용되는 고무의 조성물과 유사한 조성을 가져야만 가공시 점착이 잘되고(성형 작업이 쉽고) 공가류성이 좋기 때문이다.The reason why the natural rubber or butadiene copolymer rubber is used in the present invention is that it should have a composition similar to that of the rubber used in the surroundings, so that it has good adhesion during processing (easy molding operation) and good covalent property.
본 발명에서 사용하는 카본 블랙으로는 N2SA 값이 80 내지 110㎡/100g 이고 DBP 흡유량은 110 내지 140㎖/100g 이며, 상기 카본블랙의 질소흡착 비표면적(N2SA)이 80㎡/100g 미만일 경우에는 고무의 충전효과가 미흡하고, 110㎡/100g을 초과할 경우에는 고무의 발열이 심하여 사용이 부적절하고, DBP 흡유량의 110㎖/100g 미만일 경우에는 현장 가공성이 좋지 못하고, 고무의 충전 효과도 떨어지며, 140㎖/100g을 초과할 경우에는 적절한 히스테리시스 성능을 얻지 못하게 된다.As the carbon black used in the present invention, when the N2SA value is 80 to 110 m 2/100 g and the DBP oil absorption is 110 to 140 ml / 100 g, the carbon black has a nitrogen adsorption specific surface area (N 2 SA) of less than 80 m 2/100 g. Insufficient filling effect and excessive use of 110㎡ / 100g cause excessive heat generation of rubber, improper use, and less than 110ml / 100g of DBP oil absorption, poor workability and poor filling effect of 140 If the ml / 100g is exceeded, proper hysteresis performance will not be obtained.
이와 같은 카본블랙을 70중량부 미만으로 사용할 경우에는 고무 조성물의 점착력과 모듈러스가 상당히 떨어지는 등 기계적 물성이 미흡하게 나타나고, 100중량부를 초과하여 사용할 경우에는 영구변형율이 높아지게 되어 바람직하지 않게 된다.When the carbon black is used at less than 70 parts by weight, the mechanical properties such as adhesion and modulus of the rubber composition are considerably deteriorated, and when the carbon black is used at more than 100 parts by weight, the permanent strain becomes high, which is undesirable.
상기 페놀 타입 수지로는 다음 식 1과 같은 구조를 갖는다.As said phenol type resin, it has a structure like following formula (1).
[화학식 1][Formula 1]
상기 구조의 페놀 타입 수지를 6 중량부 이하로 사용하는 고무 채퍼는 섬유 채퍼와 유사한 영구변형율을 가지면서 점착력과 모둘러스가 상당히 향상되고, 또한 고무 채퍼의 재료로 페놀 타입 수지를 사용하지 않은 경우는 점착력이 상당히 떨어지고, 또한 페놀 타입 수지를 6 중량부 초과로 사용할 경우는 점착력은 상당히 우수하지만 모둘러스가 낮고 영구변형율이 떨어진다는 단점이 있다. 따라서 페놀 타입 수지를 상기한 바와 같이 0.1 내지 6 중량부로 사용하는 것이 바람직하다.The rubber chafer which uses the phenol type resin of the above structure at 6 parts by weight or less has a permanent deformation rate similar to that of the fiber chaper, and the adhesive force and modulus are significantly improved, and when the phenol type resin is not used as the material of the rubber chaper, When the adhesive strength is considerably lowered, and when the phenolic resin is used in an amount of more than 6 parts by weight, the adhesive strength is excellent but the modulus is low and the permanent strain is poor. Therefore, it is preferable to use a phenol type resin in 0.1-6 weight part as mentioned above.
본 발명의 고무 채퍼 조성물에서 사용한 통상의 첨가제로는 산화 아연, 노화 방지제, 황 및 가류 촉진제 등이 있다.Common additives used in the rubber chafer composition of the present invention include zinc oxide, antioxidants, sulfur and vulcanization accelerators.
상기 노화방지제는 페닐렌디아민계 노화방지제와 디히드로퀴놀린계 노화방지제를 혼합하여 사용하였고, 상기의 가류촉진제는 술폰아미드계 촉진제와 티우람 촉진제를 함께 사용하였다.The anti-aging agent was used by mixing a phenylenediamine-based antioxidant and a dihydroquinoline-based antioxidant, the vulcanization accelerator was used in combination with a sulfonamide accelerator and thiuram accelerator.
이하, 본 발명을 실시예에 의거하여 더욱 상세히 설명하면 다음과 같으며, 본 발명은 다음 실시예에 의해 제한되는 것은 아니다.Hereinafter, the present invention will be described in more detail with reference to the following examples, the present invention is not limited by the following examples.
실시예 1Example 1
다음 표 1과 같이 천연고무와 폴리부타디엔 고무를 각각 50 중량부, 카본 블랙 70 중량부, 산화 아연 3 중량부, 노화방지제 4 중량부, 페놀 타입 수지 3 중량부, 황 2 중량부 및 가류 촉진제 0.8 중량부로 이루어진 고무 채퍼 조성물을 제조하였다.As shown in Table 1, 50 parts by weight of natural rubber and polybutadiene rubber, 70 parts by weight of carbon black, 3 parts by weight of zinc oxide, 4 parts by weight of antioxidant, 3 parts by weight of phenol type resin, 2 parts by weight of sulfur, and vulcanization accelerator 0.8 A rubber chaper composition consisting of parts by weight was prepared.
비교예 1Comparative Example 1
카본블랙 50 중량부와 나일론 6를 사용하고 페놀 타입 수지를 사용하지 않는 것을 제외하고는 상기 실시예 1과 동일한 조성으로하여 섬유 채퍼 조성물을 제조하였다.A fiber chaper composition was prepared in the same composition as in Example 1 except that 50 parts by weight of carbon black and nylon 6 were used and no phenol type resin was used.
비교예 2Comparative Example 2
페놀 타입 수지를 7 중량부 사용하는 것을 제외하고는 상기 실시예 1과 동일한 조성으로 고무 채퍼 조성물을 제조하였다.A rubber chaper composition was prepared in the same composition as in Example 1 except that 7 parts by weight of the phenol type resin was used.
비교예 3Comparative Example 3
페놀 타입 수지를 사용하지 않는 것을 제외하고는 상기 실시예 1과 동일한 조성으로 고무 채퍼 조성물을 제조하였다.A rubber chaper composition was prepared in the same composition as in Example 1 except that no phenol type resin was used.
[표 1]TABLE 1
시험예Test Example
시험을 위하여 섬유 채퍼(21) 및 고무 채퍼(23)를 도 2a 및 도 2b와 같은 형태로 만든 다음에 다음과 같은 시험을 실행하였다. 도 2a에서 (22)는 나일론이다.For the test, the fiber chaper 21 and the rubber chaper 23 were made in the form as shown in Figs. 2A and 2B, and the following test was carried out. In Figure 2a (22) is nylon.
점착력 : 고무와의 점착성능을 시험하기 위하여 상기 실시예 1과 비교예 1 내지 3에서 제조된 채퍼 시편 (21), (23)과 1㎜ 두께의 표준 미가류 고무를 압착하여 만들어진 표면이 매끈한 고무를 점착시켜 점착 시험기를 이용하여 점착력을 비교하였다(점착시험기 : PICMA-Ⅱ 점착시험기, 일본 토요세키사 제작). Adhesion: A smooth surface rubber made by compressing the chaper specimens 21 and 23 prepared in Example 1 and Comparative Examples 1 to 3 and a standard unvulcanized rubber having a thickness of 1 mm to test the adhesion performance with rubber. Was adhered and the adhesion was compared using an adhesion tester (adhesion tester: PICMA-II adhesion tester, manufactured by Toyo Seki Co., Ltd.).
점착시험을 위한 표준 고무시편은 천연 고무 100 중량부, 카본 블랙 45 중량부, 산화 아연 3 중량부, 노화방지제 4 중량부, 황 4 중량부 및 촉진제 5 중량부의 조성으로 반바리 믹서에서 혼합하여 준비하였다.Standard rubber specimens for adhesion test were prepared by mixing in a half-barrier mixer with the composition of 100 parts by weight of natural rubber, 45 parts by weight of carbon black, 3 parts by weight of zinc oxide, 4 parts by weight of antioxidant, 4 parts by weight of sulfur, and 5 parts by weight of accelerator. It was.
모둘러스 : 상기 실시예 1과 비교예 1 내지 3에서 제조된 채퍼 시편(21), (23)의 모둘러스는 ASTM D412-92에 의거하여 표준 아령형 3호 시편을 제작하여 인장 시험기(Instron사 제작)로 측정된 100% 인장시 스트레스값을 시편의 모둘러스 값으로 사용하였다.Modulus: The modulus of the chafer specimens 21 and 23 prepared in Example 1 and Comparative Examples 1 to 3 manufactured a standard dumbbell type No. 3 specimen in accordance with ASTM D412-92 and a tensile tester (Instron Co., Ltd.). Fabrication) 100% tensile stress value was used as the modulus value of the specimen.
영구변형율 : 고무의 영구변형율도 ASTM D412-92의 방법에 의거하여 채퍼 시편을 제작하였고, 50%의 변형을 가하여 100℃ 오븐에서 3일간 방치 후 실시예 1과 비교예 1 내지 3의 상기 시편 (21), (23)의 영구변형율을 비교하였다.Permanent Strain: The permanent strain of rubber was prepared according to the method of ASTM D412-92, and the chaper specimen was prepared, and 50% of strain was added thereto and then left in an oven at 100 ° C. for 3 days. 21) and (23) were compared.
실시예 1과 비교예 1 내지 3의 점착력, 모둘러스 및 영구변형율을 측정한 결과를 다음 표 2에 나타내었다.The results of measuring adhesion, modulus and permanent strain of Example 1 and Comparative Examples 1 to 3 are shown in Table 2 below.
[표 2]TABLE 2
상기의 표 2에서와 같이, 페놀 타입 수지를 3 중량부 사용한 실시예 1의 경우 나일론 섬유에 고무를 입혀 제조한 비교예 1과 유사한 영구 변형율을 가지면서 점착력과 모둘러스가 상당히 향상됨을 알 수 있었다. 또한 고무 채퍼의 재료로 페놀 타입 수지를 사용하지 않은 비교예 3의 경우는 점착력이 상당히 떨어지고, 또 페놀 타입 수지를 7 중량부 사용한 비교예 2의 경우는 점착력은 상당히 우수하지만 모둘러스가 낮고, 영구변형율이 떨어진다는 단점이 있음을 알 수 있었다.As shown in Table 2, in the case of Example 1 using 3 parts by weight of a phenolic resin, it was found that the adhesive force and modulus were significantly improved while having a permanent strain similar to that of Comparative Example 1 prepared by coating nylon fibers with rubber. . In addition, in the case of Comparative Example 3, in which the phenolic resin was not used as the material of the rubber chafer, the adhesive strength was considerably decreased, and in Comparative Example 2 in which 7 parts by weight of the phenolic resin was used, the adhesive strength was excellent, but the modulus was low, and the permanent It was found that there is a disadvantage that the strain rate is low.
본 발명의 의한 승용차용 래디알 타이어는 타 부위와의 점착 및 접착성이 높은 고무 조성물로 만든 채퍼를 타이어의 사이드 윌와 림쿠션 압출시 함께 압출하는 사이드부를 가지므로, 타이어의 제조 공정을 단순화하고 타이어의 제조 중 섬유 채퍼로 인해 생기는 불량을 현저히 감소시킬 수 있다.The radial tire for a passenger car according to the present invention has a side portion for extruding a chafer made of a rubber composition having high adhesion and adhesion to other parts at the time of extruding the tire with the side wheel of the tire, thereby simplifying the tire manufacturing process and It is possible to significantly reduce the defects caused by the fiber chaper during the production of.
도 1은 승용차용 타이어의 사이드부 고무 압출물의 단면도를 나타내고,1 shows a cross-sectional view of a side rubber extrudate of a tire for a passenger car,
도 2a는 종래 섬유 채퍼 시험 시편의 사시도이며, 도 2b는 본 발명에 따른 고무 채퍼 시험 시편의 사시도이다.Figure 2a is a perspective view of a conventional fiber chafer test specimen, Figure 2b is a perspective view of a rubber chafer test specimen according to the present invention.
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0038630A KR100504336B1 (en) | 1998-09-18 | 1998-09-18 | Radial tires for passenger cars with side parts extruded rubber chafer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0038630A KR100504336B1 (en) | 1998-09-18 | 1998-09-18 | Radial tires for passenger cars with side parts extruded rubber chafer |
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| Publication Number | Publication Date |
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| KR20000020160A KR20000020160A (en) | 2000-04-15 |
| KR100504336B1 true KR100504336B1 (en) | 2005-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR10-1998-0038630A KR100504336B1 (en) | 1998-09-18 | 1998-09-18 | Radial tires for passenger cars with side parts extruded rubber chafer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101340058B1 (en) | 2010-11-26 | 2013-12-09 | 한국타이어 주식회사 | Rubber composition for tire rim cushion and tire manufactured by using the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477901A (en) * | 1977-12-02 | 1979-06-21 | Bridgestone Corp | Rubber chafer |
| JPS57105431A (en) * | 1980-12-23 | 1982-06-30 | Yokohama Rubber Co Ltd:The | Rubber composition for chafer of pneumatic tire |
| JPH02124302A (en) * | 1988-07-25 | 1990-05-11 | Ohtsu Tire & Rubber Co Ltd :The | Pneumatic tire and manufacture thereof |
| JPH04208443A (en) * | 1990-11-30 | 1992-07-30 | Bridgestone Corp | Pneumatic tire |
| JPH05179065A (en) * | 1991-12-27 | 1993-07-20 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| KR980000876A (en) * | 1996-06-13 | 1998-03-30 | 남일 | Manufacturing method of sidewall assembly for pneumatic tire which improves productivity |
-
1998
- 1998-09-18 KR KR10-1998-0038630A patent/KR100504336B1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477901A (en) * | 1977-12-02 | 1979-06-21 | Bridgestone Corp | Rubber chafer |
| JPS57105431A (en) * | 1980-12-23 | 1982-06-30 | Yokohama Rubber Co Ltd:The | Rubber composition for chafer of pneumatic tire |
| JPH02124302A (en) * | 1988-07-25 | 1990-05-11 | Ohtsu Tire & Rubber Co Ltd :The | Pneumatic tire and manufacture thereof |
| JPH04208443A (en) * | 1990-11-30 | 1992-07-30 | Bridgestone Corp | Pneumatic tire |
| JPH05179065A (en) * | 1991-12-27 | 1993-07-20 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| KR980000876A (en) * | 1996-06-13 | 1998-03-30 | 남일 | Manufacturing method of sidewall assembly for pneumatic tire which improves productivity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101340058B1 (en) | 2010-11-26 | 2013-12-09 | 한국타이어 주식회사 | Rubber composition for tire rim cushion and tire manufactured by using the same |
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|---|---|
| KR20000020160A (en) | 2000-04-15 |
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