KR100810038B1 - Compositions for conveyor belt skirt or its process - Google Patents
Compositions for conveyor belt skirt or its process Download PDFInfo
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- KR100810038B1 KR100810038B1 KR1020060032121A KR20060032121A KR100810038B1 KR 100810038 B1 KR100810038 B1 KR 100810038B1 KR 1020060032121 A KR1020060032121 A KR 1020060032121A KR 20060032121 A KR20060032121 A KR 20060032121A KR 100810038 B1 KR100810038 B1 KR 100810038B1
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- conveyor belt
- weight
- skirt
- rosin
- rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
- B65G15/34—Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
- B65G17/08—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element
- B65G17/086—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms the surface being formed by the traction element specially adapted to follow a curved path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
- B65G21/2045—Mechanical means for guiding or retaining the load on the load-carrying surface
- B65G21/2063—Mechanical means for guiding or retaining the load on the load-carrying surface comprising elements not movable in the direction of load-transport
- B65G21/2072—Laterial guidance means
- B65G21/2081—Laterial guidance means for bulk material, e.g. skirts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
본 발명은 액상 우레탄수지 50~70중량%와 3~10중량%의 분말고무, 30~40중량%의 로신을 혼합한 용액을 교반하는 단계와, 상기 교반된 혼합용액을 금형에 충진시키고 로에서 120~150℃의 온도로 가열하여 경화시키는 단계와, 상기 경화된 혼합물질을 다시 로에 넣고 100~120℃의 온도로 5~7시간 동안 숙성시키는 단계로 이루어지는 컨베이어벨트 스커트 조성물의 제조방법을 제공하기 위한 것으로, 본 발명은 탄성을 가지면서도 상당한 내마모성을 가지는 것이어서 컨베이어 벨트로 부터 운반물이 떨어지는 것을 방지할 수 있고, 기존의 스커트보다 상당한 기간을 더 오래 사용할 수 있게 된다.The present invention is a step of stirring a solution of 50 to 70% by weight of the liquid urethane resin, 3 to 10% by weight of powdered rubber, 30 to 40% by weight of rosin, and filling the mold with the stirred mixture solution in the furnace Providing a method for producing a conveyor belt skirt composition comprising the step of curing by heating to a temperature of 120 ~ 150 ℃, and the step of putting the cured mixture in the furnace again for 5 to 7 hours at a temperature of 100 ~ 120 ℃. To this end, the present invention is elastic and yet has significant wear resistance, which can prevent the package from falling off the conveyor belt and allow a significant period of time to be used over conventional skirts.
또한 본 발명은 기존에 널리 보편적으로 사용되고 저렴한 우레탄이나 고무, 로신 등의 성분을 적절하게 배합하여 컨베이어벨트 스커트를 제조함으로써 스커트의 교체로 발생하는 생산차질을 최소화할 수 있으면서, 또 스커트을 교체하더라도 비용부담이 커지지 않게 되며, 오랜 기간 사용할 수 있게되어 생산성 향상을 기대할 수 있는 매우 유용한 발명인 것이다.In addition, the present invention by minimizing the production disruption caused by the replacement of the skirt by producing a conveyor belt skirt by properly mixing the components of the conventionally widely used and inexpensive urethane, rubber, rosin, etc. This does not become large, and can be used for a long time is a very useful invention that can be expected to improve productivity.
컨베이어벨트, 스커트 Conveyor Belts and Skirts
Description
도 1 - 컨베이어벨트 스커트의 사용상태 참고도.Figure 1-Reference state of use of the conveyor belt skirt.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
A: 컨베이어 벨트 B: 스커트(skirt )A: Conveyor Belt B: Skirt
본 발명은 컨베이어 벨트 스커트 조성물 및 그의 제조방법에 관한 것으로, 더욱 상세하게는 인성과 경도가 우수하고, 또 탄성이 양호해 쉬 마모되지 않아 오래 사용할 수 있는 컨베이어 벨트 스커트 조성물 및 그의 제조방법에 관한 것이다.The present invention relates to a conveyor belt skirt composition and a method of manufacturing the same, and more particularly, to a conveyor belt skirt composition and a method of manufacturing the same that is excellent in toughness and hardness, and good elasticity can be used for a long time without abrasion. .
컨베이어 벨트 스커트는 컨베이어 벨트에 의해 광석이나 석탄과 같은 운반물들이 이송되는 과정 중 광석의 일부가 컨베이어 벨트의 양측 단부로 떨어져 유실되는 것을 방지하도록 하기 위한 수단으로, 컨베이어 벨트 양측에 서로 마주보는 형 태로 설치되어 진다. Conveyor belt skirt is a means to prevent part of the ore from falling to both ends of the conveyor belt during the process of conveying the packages such as ore or coal by the conveyor belt, installed in the form facing each other on both sides of the conveyor belt It is done.
상기 컨베이어 벨트 스커트는 운반물과의 잦은 접촉으로 인하여 심하게 마모되므로, 내마모성을 떨어지는 재질의 경우 너무 자주 교체하게 되고 이로 인해 작업이 중단되어야 하므로 생산성이 저하되는 폐단을 갖는 것이다. 또한 스커트의 잦은 교체비용으로 인해 생산비용이 증가하며, 특히 컨베이어 벨트 스커트는 대개 열악한 위치에 설치되는 경우가 많아 안전재해의 위험이 자주 발생하는 단점을 갖는다.Since the conveyor belt skirt is badly worn due to frequent contact with the package, in case of a material having low abrasion resistance, the conveyor belt skirt has to be replaced too often and the work must be stopped. In addition, the production cost is increased due to the frequent replacement cost of the skirt, in particular, the conveyor belt skirt is often installed in a poor position has the disadvantage that the risk of safety accidents often occur.
따라서 상기 스커트의 내구성을 높여 수명을 늘이기 위한 노력과 연구가 다방면에서 이루어지고 있는 실정이나, 아직까지 만족할 만한 가격적인 부담을 증가시키지 않으면서도 내구성이 우수한 컨베이어벨트 스커트가 개발되지 못하고 있는 실정이다.As a result, efforts and studies to increase the durability of the skirt to increase its life have been made in various fields, but a conveyor belt skirt having excellent durability has not been developed yet without increasing a satisfactory price burden.
본 발명은 컨베이어벨트 스커트를 제조하는 데 있어 소요되는 원가를 크게 높이지 않으면서도 내마모성을 향상시켜 장시간 사용이 가능하도록 함으로써 스커트 교체작업에 소요되는 시간을 절약하고, 운반물의 낙광 방지 효율을 향상시킬 수 있도록 하며, 이로 인해 생산성을 비약적으로 향상시킬 수 있는 컨베이어벨트 스커트를 제공하는데 그 목적이 있다. The present invention can improve the wear resistance of the conveyor belt skirt without increasing the cost, so that it can be used for a long time to save the time required to replace the skirt, improve the efficiency of preventing falling of the package. The purpose is to provide a conveyor belt skirt that can significantly improve productivity.
본 발명의 목적을 달성하기 위한 가장 중요한 조건으로는 컨베이어 벨트에 의해 운반되는 운반물들에 의해 지속적으로 마모되고 충격을 받는 컨베이어벨트 스커트의 특성상 적당한 탄성과 경도(硬度)를 가져야 하며, 또한 강한 인성(靭性)을 가져야 한다. 또한 가격경쟁력을 감안하여 고가의 원료를 사용하지 않고도 컨베이어벨트 스커트를 제작할 수 있어야 한다.The most important condition for achieving the object of the present invention is to have a moderate elasticity and hardness due to the characteristics of the conveyor belt skirt that is continuously worn and impacted by the packages carried by the conveyor belt, and also has a strong toughness (靭性) should be. In addition, considering the price competitiveness, the conveyor belt skirt should be able to be manufactured without using expensive raw materials.
따라서 상기와 같은 조건을 모두 만족할 수 있는 재질을 찾기란 결코 용이한 일이 아니다. 또한 널리 알려진 일반적인 강인성과 완충성을 가지는 재질 또는 이들의 단순한 혼합만으로 상기한 조건들을 만족시킨다는 것도 용이한 일이 아니다.Therefore, it is not easy to find a material that can satisfy all of the above conditions. In addition, it is also not easy to satisfy the above conditions with only the well-known general toughness and cushioning materials or simple mixing thereof.
본 발명자는 수많은 실험을 통해 가장 최적의 컨베이어벨트 스커트 조성물 및 컨베이어벨트 스커트를 제조할 수 있었으며, 상기 컨베이어벨트 스커트 조성물의 제조방법은 다음과 같다. The inventors have been able to produce the most optimal conveyor belt skirt composition and conveyor belt skirt through a number of experiments, the manufacturing method of the conveyor belt skirt composition is as follows.
먼저 주재료인 액상 우레탄수지 50~70중량%와 3~10중량%의 분말고무, 30~40중량%의 로신(Rosin)을 혼합한 용액을 교반하는 단계와, 상기 교반된 혼합용액을 금형에 충진시키고 로(爐)에서 120~150℃의 온도로 가열하여 경화시키는 단계와, 상기 경화된 혼합물질, 즉 우레탄수지와 고무 및 로신 혼합물질을 다시 로에 넣고 100~120℃의 온도로 5~7시간 동안 숙성시키는 단계로 이루어진다.First, stirring a solution of 50 to 70% by weight of the liquid urethane resin, 3 to 10% by weight of powdered rubber, and 30 to 40% by weight of rosin, the main material, and filling the mold with the stirred solution And curing by heating to a temperature of 120-150 ° C. in the furnace, and putting the cured mixture, ie, urethane resin, rubber and rosin mixture, into the furnace at a temperature of 100-120 ° C. for 5-7 hours. Aging step.
상기 우레탄수지는 액상으로 존재하며, 우레탄수지는 양에 비례해 적당한 경화제를 혼합하고 로에서 가열하면 경화되어진다.The urethane resin is present in the liquid phase, and the urethane resin is cured by mixing an appropriate curing agent in proportion to the amount and heating in a furnace.
우레탄은 널리 알려진 바와 같이 매우 견고하고, 강인하며, 충격에는 잘 견디는 성질을 가지나 취약하여 쉬 부러지고, 상태복원능력이 떨어지는 단점을 갖는 다.Urethane, as is widely known, has the disadvantages of being very hard, strong and resistant to impacts, but weakly broken and weak in state resilience.
반면 고무는 탄성이 좋고, 신축이 용이하며, 연성(軟性)이 강하나 재질이 연약해 쉬 파손되는 단점과 인장 및 압축력이 약한 단점을 갖는다.On the other hand, rubber has good elasticity, easy stretching, strong ductility, but weakness of material due to weakness and weakness of tensile and compressive forces.
또한 로신은 송진에서 테레빈유를 증유하고 남은 수지를 의미하는 것으로, 상기 로신에 의해 우레탄수지와 고무만으로는 부족한 결합력을 보완하고, 강인성을 강화할 수 있도록 하였다.In addition, rosin refers to a resin remaining after feeding terebin oil in rosin, and by rosine, the urethane resin and rubber alone to compensate for the lack of bonding strength and to enhance the toughness.
따라서 본 발명은 상기 우레탄수지와 고무의 특성을 최대한 살려 가장 적절한 혼합비 및 공정에 의해 본 발명이 의도하는 경도와 탄성, 인성이 우수한 컨베이어벨트 스커트 조성물을 얻을 수 있었다.Therefore, the present invention was able to obtain a conveyor belt skirt composition excellent in hardness, elasticity, and toughness intended by the present invention by the most suitable mixing ratio and process utilizing the properties of the urethane resin and rubber to the maximum.
이때 우레탄수지와 고무, 로신의 배합비율은 매우 중요하며, 상기 우레탄수지와 고무의 혼합시 우레탄수지의 양이 적을수록 견고성과 강인성, 인장 및 압축력에는 강해서 잘 파손되지 않으나 복원능력이 약해지며, 반대로 고무가 많아질 수록 탄성력과 신축성은 증가하나 내구성과 강인성이 취약해지는 단점을 갖게 되는 것이므로, 표 1과 같은 실험결과에 의하면 액상 우레탄 50~70중량%와 3~10중량%의 분말고무, 30~40중량%의 로신(Rosin) 비율로 배합하는 것이 강인성과 완충성을 동시에 만족할 수 있는 가장 적당한 상태의 재료를 얻을 수 있는 것이다.At this time, the mixing ratio of urethane resin, rubber and rosin is very important, and when the amount of urethane resin and rubber is mixed, the smaller the amount of urethane resin is, the stronger the toughness and toughness, the tensile and compressive forces are, therefore, not easily broken, but the restoring ability is weak. As rubber increases, elasticity and elasticity increase, but durability and toughness are weakened. According to the results of the experiment shown in Table 1, 50 ~ 70% by weight of liquid urethane and 3 ~ 10% by weight of powder rubber, 30 ~ Blending at a 40% by weight Rosin ratio yields the most suitable material that can satisfy both toughness and cushioning at the same time.
[표 1]TABLE 1
이때 우레탄수지에 투입되는 고무의 분말은 미세할수록 바람직한 것으로, 이는 우레탄수지와의 혼합이 용이해지기 때문이다.At this time, the finer the powder of the rubber is added to the urethane resin is preferable, because it is easy to mix with the urethane resin.
또한 상기 우레탄과 고무, 로신 혼합물질을 금형에 충진시켜 로(전기로가 바람직하다)에 넣고 120~150℃의 온도범위에서 경화시키게 되는데, 이때 경화시간은 11~13시간정도가 바람직하다.In addition, the urethane, rubber, rosin mixture is filled in a mold and put into a furnace (preferably an electric furnace) to be cured at a temperature range of 120 ~ 150 ℃, the curing time is preferably about 11 to 13 hours.
이는 상기 우레탄과 고무, 로신 혼합물질의 경화온도가 120℃이하인 경우에는 완전한 경화가 곤란하고, 150℃의 이상의 경우에는 혼합조성물이 타게 되는 단점을 갖기 때문이다. 또한 경화시간 역시 11시간 이전의 경우는 우레탄수지 및 고무, 로신 혼합조성물의 경화가 완전하지 못하고, 13시간 이상 진행될 경우에는 혼합조성물이 너무 경직되어 취약해지는 폐단을 갖는다.This is because when the curing temperature of the mixture of urethane, rubber and rosine is 120 ° C. or lower, complete curing is difficult, and when the temperature is 150 ° C. or higher, the mixed composition burns. In addition, the curing time is also 11 hours before the curing of the urethane resin, rubber, rosin mixed composition is not complete, if the progress is more than 13 hours, the mixed composition is too rigid to have a weak end.
이처럼 경화가 완료된 이후에는 상기 혼합물질들이 제 물성을 찾을 수 있도록 숙성시키게 되는데. 이때 숙성온도는 100~120℃, 숙성시간은 8~12시간 정도가 바람직하다. 이는 숙성온도는 100℃ 이하일 경우에는 숙성이 더디게 되고, 120℃ 이상일 경우에는 과숙성 및 물성의 변화가 우려된다. 숙성시간 역시 6시간 이하일 경우에는 미숙성 되고, 7시간 이상일 경우에는 큰 변화가 없기 때문이다.After the curing is completed, the mixtures are aged to find the physical properties. At this time, the aging temperature is 100 ~ 120 ℃, the aging time is preferably 8 to 12 hours. When the aging temperature is 100 ° C or less, aging is slow, and when the temperature is 120 ° C or more, there is concern about change of over-maturation and physical properties. Ripening time is also immature when less than 6 hours, because there is no significant change if more than 7 hours.
본 발명에 있어 액상의 우레탄수지와 분말고무,로신을 혼합한 용액에 있어 우레탄수지 및 분말고무, 로신의 함량에 의해서도 본 발명 조성물은 그 물성에 있어 상당한 차이를 갖게 되며, 각 성분의 특성 및 함량에 대해 상세히 설명하면 다음과 같다.In the present invention, the composition of the present invention has a considerable difference in the physical properties of the urethane resin, the powdered rubber and the rosin in the solution of the liquid urethane resin, the powdered rubber and the rosin. When described in detail as follows.
상기와 같은 본 발명을 실시예를 들어 상세히 설명하기로 한다.For example, the present invention as described above will be described in detail.
실시예 1Example 1
액상의 우레탄 600g에 분말고무 50g, 로신 350g을 넣고 혼합한 다음 이를 교반기로 교반한 다음 컨베이어벨트 스커트 제조용 금형에 이를 충진시켰다.50 g of powdered rubber and 350 g of rosin were mixed in 600 g of a liquid urethane, and then mixed with the stirrer and filled into a mold for manufacturing a conveyor belt skirt.
상기 충진된 혼합물질을 전기로에 넣어 135℃의 온도에서 12시간 동안 경화시켰다.The packed mixture was placed in an electric furnace and cured at a temperature of 135 ° C. for 12 hours.
본발명 재질의 물성은 경화에 의해 완료되어 지며, 상기 우레탄과 고무, 로신혼합물질을 금형에서 분리한 다음, 다시 110℃의 온도에서 6간동안 숙성함으로써 컨베이어벨트 스커트가 제조되어 진다.The physical properties of the material of the present invention is completed by curing, and the conveyor belt skirt is manufactured by separating the urethane, rubber, and rosin mixed material from the mold, and then aging for 6 hours at a temperature of 110 ° C.
상기와 같이 제조된 컨베이어벨트 스커트의 내구성을 시험해본 결과 기존의 컨베이어벨트 스커트보다 상당한 내구성 향상 효과를 가짐을 알 수 있었다.As a result of testing the durability of the conveyor belt skirt manufactured as described above it can be seen that it has a significant durability improvement effect than the conventional conveyor belt skirt.
이처럼 본 발명은 탄성을 가지면서도 상당한 내마모성을 가지는 것이어서 컨베이어 벨트로부터 운반물이 떨어지는 것을 방지할 수 있고, 기존의 스커트보다 상당한 기간을 더 오래 사용할 수 있게 된다.As such, the present invention is elastic and yet has significant wear resistance, thereby preventing the package from falling off the conveyor belt and allowing a longer period of use than a conventional skirt.
또한 본 발명은 기존에 널리 보편적으로 사용되고 저렴한 우레탄이나 고무, 로신 등의 성분을 적절하게 배합하여 컨베이어벨트 스커트를 제조함으로써 스커트 의 교체로 발생하는 생산차질을 최소화할 수 있으면서, 또 스커트을 교체하더라도 비용부담이 커지지 않게 되며, 오랜 기간 사용할 수 있게 되어 생산성 향상을 기대할 수 있는 매우 유용한 발명인 것이다.In addition, the present invention can minimize the production disruption caused by the replacement of the skirt by producing a conveyor belt skirt by properly mixing the components of the conventionally widely used and inexpensive urethane, rubber, rosin, etc. This does not become large, it can be used for a long time is a very useful invention that can be expected to improve productivity.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020060032121A KR100810038B1 (en) | 2006-04-08 | 2006-04-08 | Compositions for conveyor belt skirt or its process |
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| KR1020060032121A KR100810038B1 (en) | 2006-04-08 | 2006-04-08 | Compositions for conveyor belt skirt or its process |
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| KR20070100606A KR20070100606A (en) | 2007-10-11 |
| KR100810038B1 true KR100810038B1 (en) | 2008-03-05 |
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| KR101108505B1 (en) * | 2009-10-21 | 2012-01-31 | 하이텍산업(주) | A process for manufacturing the skirt for the conveyor belt and its skirt self-adjusting system using its skirt |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61225231A (en) | 1985-03-29 | 1986-10-07 | ヘキスト・アクチエンゲゼルシヤフト | Reinforced rubber mixture and its production and use |
| JPH11158331A (en) | 1997-11-26 | 1999-06-15 | Kanegafuchi Chem Ind Co Ltd | Crosslinkable rubber composition and crosslinked rubber elastomer produced therefrom |
| KR20000016538U (en) * | 1999-02-03 | 2000-09-25 | 김성희 | Conveyor belt withstand abrasion |
| JP2002071057A (en) | 2000-08-25 | 2002-03-08 | Toray Ind Inc | Cord for reinforcing rubber and fiber reinforced rubber material |
-
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- 2006-04-08 KR KR1020060032121A patent/KR100810038B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61225231A (en) | 1985-03-29 | 1986-10-07 | ヘキスト・アクチエンゲゼルシヤフト | Reinforced rubber mixture and its production and use |
| JPH11158331A (en) | 1997-11-26 | 1999-06-15 | Kanegafuchi Chem Ind Co Ltd | Crosslinkable rubber composition and crosslinked rubber elastomer produced therefrom |
| KR20000016538U (en) * | 1999-02-03 | 2000-09-25 | 김성희 | Conveyor belt withstand abrasion |
| JP2002071057A (en) | 2000-08-25 | 2002-03-08 | Toray Ind Inc | Cord for reinforcing rubber and fiber reinforced rubber material |
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