Tire comprising sealant layer and acoustic absorbent layer
A sound-absorbing material and sealant technology, which is applied to tire parts, reinforcing layers of pneumatic tires, layered products, etc., can solve the problems of reduced noise reduction performance, sound-absorbing material damage, and failure to function normally, and achieve the function of preventing sealants reduction, maintain noise reduction performance, and achieve self-sealing effect
Inactive Publication Date: 2021-12-17
HANKOOK TIRE & TECH CO LTD
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Problems solved by technology
[0005] However, unlike ordinary tires, since the inside of the self-sealing tire is coated with a polymer material, when installing a sound-absorbing material that can reduce the internal noise of the tire on the top of the material, the sealing performance of the puncture will be greatly reduced. drop and fail to perform its inherent self-sealing function
[0006] In addition, when installing the sound-absorbing material to other parts, especially when installing the sound-absorbing material to the side wall, there may be a problem that the sound-absorbing material may be damaged due to interference with the combination of the tire and the wheel hub
Moreover, when the sound-absorbing material is installed on the hub, it will not be able to perform its function normally due to the significant decline in noise reduction performance.
Method used
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manufacture example
[0078] [Manufacturing example: Manufacturing of tires]
[0079] A first porous material and a second porous material having physical properties shown in Table 1 below were prepared.
[0080] 【Table 1】
[0081] unit Second porous material The first porous material density kg / m 3
28.8 29.5 Hardness (ILD25%) kgf 12.46 17.7 tensile strength kgf / cm 2
1.31 0.96 Elongation ％ 248.5 83.29 average pore size μm 750 1850
[0082] - Hardness: JIS K 6400-2
[0083] - Tensile strength, elongation: JIS K6400-5
[0084] - Density: JIS K7222
[0085] In addition, a sealant composition was prepared by mixing 100 parts by weight of butyl rubber, 400 parts by weight of polyisobutylene, 40 parts by weight of a carbon black additive, and 2 parts by weight of a sulfur-based vulcanizing agent, and applied it to 195 / 65R15 specification tire inner side, and then according to the manner as shown in the following Table 2, the por...
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Abstract
The present disclosure relates to a tire comprising a sealant layer and an acoustic absorbent layer, and the tire comprises an acoustic absorbent layer positioned inside the tire, a sealant layer positioned between the inner surface of the tire and the acoustic absorbent layer, and applied to the inner surface of the tire, and a film layer positioned between the acoustic absorbent layer and the sealant layer.The tire may enable a sealant layer applied to the inner surface of the tire to perform a self-sealing process in case of puncture, may have the noise reduction performance by comprising an acoustic absorbent, and not only may prevent micro-fragments of the acoustic absorbent from deteriorating the function of the sealant, but also may maintain the noise reduction performance even when a nail reaches the acoustic absorbent by penetrating the tire and a sealant.
Description
technical field [0001] The invention relates to a tire comprising a sealant layer and a sound-absorbing material layer, and in particular to a tire that can be self-sealing and has noise-reducing performance when a puncture occurs. Background technique [0002] When existing pneumatic tires are punctured due to foreign objects on the road surface, the safety and stability during fast driving may be reduced or even fatal accidents may occur. In order to solve the existing problems as mentioned above, a special sealing material inside the general tire has been developed, so that even when the tire is punctured during driving, the special material inside the tire can be used to seal the puncture immediately. A tire that seals the tire and prevents air from leaking, allowing it to run continuously. [0003] At the same time, the demand for noise reduction performance of tires is increasing along with the strengthening of government regulations related to vehicle noise and the i...
Claims
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IPC IPC(8): B60C17/00B60C19/00B32B7/12B32B27/02B32B27/30B32B27/36B32B27/12B32B27/06B32B27/40B32B25/04B32B25/14B32B33/00
CPCB60C17/00B60C19/002B32B7/02B32B5/18B32B5/32B32B5/022B32B5/26B32B33/00B32B2262/0276B32B2262/023B32B2266/0278B32B2266/025B32B2266/0207B32B2307/10B60C19/12B60C9/005C08K7/22
Inventor 卢奎东徐炳镐金正宪
Owner HANKOOK TIRE & TECH CO LTD