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A tire reinforcement material

A technology for reinforcing materials and tires, which is applied to the reinforcement layer of pneumatic tires, tire parts, vehicle parts, etc., and can solve problems such as difficulty and changing properties.

Inactive Publication Date: 2015-10-21
KORDSA GLOBAL ENDUSTRIYEL IPLIK VE KORD BEZI SANAYI VE TICARET ANONIM SIRKETI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An important problem with classical hybrid cords is the difficulty in varying process- and performance-related properties independently of each other

Method used

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  • A tire reinforcement material
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Embodiment Construction

[0033] The tire reinforcing material (1) of the present invention comprises cords or yarns having different modulus and thermal shrinkage properties as continuous and parallel warp threads (Ck) and becomes a fabric with bielastic behavior after heat treatment.

[0034] In a preferred embodiment of the present invention, the cords or yarns (2, 4) with low modulus used in the tire reinforcement (1) may be nylon 6.6 or PET; the cords with high modulus The threads or yarns ( 3 , 5 ) can be aramid, rayon, PEN, carbon fiber or glass fiber.

[0035] In a preferred embodiment of the invention, the cords or yarns (2, 3, 4, 5) in said tire reinforcement (1) have a decitex value between 100 and 3000, preferably between 100 and 1000 . The cords or yarns (2, 3, 4, 5) have a twist level between 20 and 1000 tpm (turns per meter). The number per decimeter (epdm: ends per decimeter) of the cords or yarns (2, 3, 4, 5) ranges from 50 to 200.

[0036] The cords or yarns (2, 4) with low modulus...

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Abstract

Tire reinforcement material (1) formed of cords or yarns (2, 3, 4, 5) with different elasticity moduli and which is gained bielasticity property depending on the different thermal shrinkage (TK, AS) properties thereof. To provide a tire reinforcement material (1) which has the process and performance behaviour of the classic hybrid cord, and at the same time a reduced thickness of the fabric (gauge reduction). It allows the production process and performance properties of the tire reinforcement fabric to be optimized independent from each other.

Description

technical field [0001] The present invention relates to a tire reinforcing material formed of cords or yarns having different moduli and which obtains a bielastic behavior depending on different thermal shrinkage properties. Background technique [0002] Hybrid cords used as cap ply reinforcement in pneumatic tire technology are obtained by twisting yarns with different properties with each other. [0003] The most important difference between the yarns in a hybrid cord with two or more layers (plies) is their modulus of elasticity. The modulus of elasticity refers to the unit cross-sectional area (mm 2 ) of the material to increase its length by 100%. Bielasticity is the appearance of two moduli in the stress-strain curve. In other words, first a low and then a high modulus can be seen in the stress-strain curve of the fabric. For example in double layer (ply) hybrid cords, if one layer of yarns forming the layers has a low modulus, the other layer has a high modulus (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/00
CPCB60C9/005B60C9/0028B60C9/0042B60C9/0057B60C9/1807B60C2009/0035B60C2009/0078B60C2009/0085B60C2009/0092B60C2009/2295Y10T442/3008
Inventor S.多干K.阿克索伊S.菲丹B.A.梅托
Owner KORDSA GLOBAL ENDUSTRIYEL IPLIK VE KORD BEZI SANAYI VE TICARET ANONIM SIRKETI