For articles made of elastomeric materials, preferably for reinforcing layers of pneumatic vehicle tires and pneumatic vehicle tires
A technology of reinforcement layer and tire, applied in the direction of reinforcement layer of pneumatic tire, vehicle parts, tire parts, etc., can solve problems such as high-speed performance loss
Active Publication Date: 2021-03-02
CONTINENTAL REIFEN DEUTSCHLAND GMBH
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This heat buildup results in loss of high speed performance and rolling resistance
Method used
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[0030] The present invention will be explained in detail hereinafter with reference to working examples, but is not limited thereto.
[0031] In a preferred working example of the present invention, the reinforcing layer is used as a carcass (carcass ply) for a pneumatic automobile tire. The reinforcing layer is a rubberized fabric with fabric cords as strength members consisting of two mutually twisted polyethylene terephthalate multifilament yarns, the polyethylene terephthalate The multifilament yarn has a 550x2 construction at a density of 175 epdm. These multifilament yarns each had a twist rate of 580 tpm and the fabric cord in question had a warp twist rate of 580 tpm in the opposite direction. These multifilament yarns had an ultimate tensile strength based on linear density according to ASTM D885-16 of 72.7 cN / tex and a rubberized thickness of 0.80 mm. The value of the rubberized thickness GD based on linear density was found to be 1.1 mm*g / (m*cN). The elongation a...
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Abstract
The present invention relates to a rubberized reinforcement layer for articles made of elastomeric material, preferably for pneumatic vehicle tires, wherein the reinforcement layer has a plurality of strength members arranged in parallel and spaced apart, wherein each strength member The member consists of at least one twisted multifilament yarn composed of polyethylene terephthalate (PET), wherein the multifilament yarn has a yarn count of 50 decitex to 1100 decitex (linear density) and an ultimate tensile strength based on linear density of > 70 cN / tex according to ASTM D885-16, and wherein the rubberized material has a thickness D. The invention also relates to a pneumatic vehicle tire comprising the reinforcing layer. The multifilament yarn has an elongation at break of 10% to 20% according to ASTM D885‑16, a degree of crystallinity via DSC of 55% to 65%, and a birefringence Δn of 0.21≦Δn≦0.25.
Description
technical field [0001] The present invention relates to a rubberized reinforcement layer for articles made of elastomeric material, preferably for pneumatic vehicle tires, wherein the reinforcement layer has a plurality of strength members arranged in parallel and spaced apart, wherein each strength member The member consists of at least one twisted multifilament yarn composed of polyethylene terephthalate (PET), wherein the multifilament yarn has a yarn count of 50 decitex to 1100 decitex (linear density) and an ultimate tensile strength based on linear density of ≧70 cN / tex according to ASTM D885-16, and wherein the rubberized material has a thickness D. The invention also relates to a pneumatic vehicle tire comprising the reinforcing layer. Background technique [0002] Reinforcing layers for articles made of elastomeric materials, such as industrial rubber products and pneumatic vehicle tires, are of great importance and are common knowledge to those skilled in the art....
Claims
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IPC IPC(8): B60C9/12B60C9/20D02G3/48
CPCB60C9/0042B60C2009/0425B60C2009/045B60C2009/0466B60C2015/0685B60C2015/0692B60C9/12B60C9/20D02G3/48D10B2331/04B32B5/02C08J5/046C08L67/02D02G3/045D02G3/28D06M15/693
Inventor 乌特·珀勒卡罗勒·朱斯蒂娜托马斯·克拉默
Owner CONTINENTAL REIFEN DEUTSCHLAND GMBH