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Multilayered flexible hose

A hose and flexible technology, applied in the field of multi-layer flexible brake hoses, can solve problems such as use restrictions, and achieve the effect of ensuring dynamic performance

Inactive Publication Date: 2020-05-01
CONTITECH SCHLAUCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the use of these two substances may be significantly restricted and / or associated with strict regulations in the coming years

Method used

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  • Multilayered flexible hose
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Experimental program
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Embodiment Construction

[0035] The invention will now be elucidated in detail with reference to the comparative and working examples summarized in Table 1a and Table 1b.

[0036]Table 1a shows the performance of the T test at laboratory scale using a concentration series of zinc diacrylate (ZDA).

[0037] Here, adhesive layers based in each case on EPDM rubber and having different amounts of ZDA were applied to the textile strength members made of PVAL. In this case, the textile strength member is equipped with RF system impregnation and in one case does not contain RF system impregnation.

[0038] The so-called T-test according to ASTM D2229 is an adhesion test between a fabric strength member insert and a rubber compound. T-tests determine static adhesion. In this test, the filament to be tested is placed in a rubber matrix, which is then vulcanized under the influence of pressure and temperature. The force required to pull the filament out of the rubber at a 90° angle is measured and is usually...

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Abstract

The invention relates to a multilayered flexible hose, in particular a multilayered flexible brake hose. The hose has the following layer structure: -a single-ply or multi-ply outer layer based on atleast one elastomer and -at least one single-ply or multi-ply textile strength member layer and -at least one single-ply or multi-ply adherent layer, wherein the adherent layer contains as the adhesive at least one zinc(II) salt of acrylic acid and / or at least one zinc(II) salt of methacrylic acid and / or at least one zinc(II) salt of monomethacrylic acid, and -a single-ply or multi-ply inner layerbased on at least one elastomer.

Description

technical field [0001] The invention relates to a multilayer flexible hose, especially a multilayer flexible brake hose. Background technique [0002] Brake hoses are used in the brake system of motor vehicles in order to generate, via the brake pedal, a static column of brake fluid which is intended to transmit pressure loss-free to the wheel brake cylinders. The force expended by the foot is transmitted frictionlessly and losslessly in the brake hose or brake lines. To bridge the gap from the body to the wheels (i.e. the brake cylinders), a flexible transition is required to create a balance between compression and rebound. For this purpose, flexible brake hoses are usually installed, which have at least one strength member layer and at least one layer based on at least one rubber compound. In contrast to rigid brake lines, flexible brake lines are stretchable, and this property changes with changing environmental conditions. The change in volume of the flexible brake h...

Claims

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Application Information

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IPC IPC(8): B32B5/02B32B5/08B32B7/12B32B25/10B32B25/14B32B1/08
CPCB32B5/022B32B5/024B32B5/026B32B5/08B32B7/12B32B25/10B32B25/14B32B1/08B32B2597/00B32B2605/08B32B5/02F16L11/04B32B2262/105B32B2262/101B32B2262/08B32B2605/00B32B2262/0253B32B2262/10B32B2262/103B32B2274/00B32B2262/0223B32B2307/546B32B2264/102B32B2262/062B32B27/08B32B25/18B32B2262/0269B32B2262/0238B32B25/16B32B25/08B32B19/043B32B2264/0257B32B2264/0242B32B2264/067B32B2262/106B32B2307/4026B32B25/042B32B2262/0284B32B2262/0276B32B2262/0261B32B19/06B32B2270/00B32B5/26B32B2264/104B32B2262/14B32B19/04B32B2264/108B32B2262/02B32B2264/10B32B25/12B32B2262/04B32B2264/0207B32B2264/101B32B2264/12B32B25/20B32B2307/5825F16L11/10
Inventor 迈克尔·图姆马丁·西内莫斯拉尔斯·德林
Owner CONTITECH SCHLAUCH