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Wiper blade, production method and wiper frame device containing natural rubber and polybutadiene

A technology of natural rubber and polybutadiene, which is applied in the wiper frame device and the field of manufacturing the blade, which can solve problems such as rapid degradation, blade aging, and blade wear

Pending Publication Date: 2020-02-21
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This friction causes the blades to wear, which leads to the aging of the blades
Therefore, after a certain number of cycles, the blades must be replaced
[0006] Furthermore, due to known mechanisms of oxidation and ozonolysis, wiper blades, whether made of natural or synthetic rubber, are prone to more or less rapid degradation after prolonged exposure to the atmosphere

Method used

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  • Wiper blade, production method and wiper frame device containing natural rubber and polybutadiene
  • Wiper blade, production method and wiper frame device containing natural rubber and polybutadiene
  • Wiper blade, production method and wiper frame device containing natural rubber and polybutadiene

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Embodiment Construction

[0030] In this specification, unless otherwise specified, all percentages (%) shown are percentages (%) by weight. Furthermore, any numerical range indicated by the expression "between a and b" indicates a range of values ​​from greater than a to less than b (i.e. excluding the limits a and b), while any numerical range indicated by the expression "from a to b" A range of values ​​indicates a range of values ​​from a to b (ie including the strict limits a and b).

[0031] Within the meaning of the present invention, the expression "parts by weight per hundred parts by weight of elastomer" (or phr) means parts by weight per hundred parts by weight of elastomer.

[0032] The carbon-containing compounds mentioned in the description may be of fossil or biobased origin. In the case of biobased sources, they may be partially or completely derived from biomass, or obtained from renewable raw materials derived from biomass. This concerns especially polymers, plasticizers, fillers an...

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PUM

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Abstract

The invention relates to a wiper blade, in particular a wiper blade comprising a rubber structure, to a method for producing such a blade, and to a wiper frame device. According to the invention, therubber structure is formed from an elastomer matrix comprising: between 25 and 60 phr of natural rubber; and between 40 phr and 75 phr of polybutadiene.

Description

technical field [0001] The present invention relates to wiper blades, and in particular to wiper blades comprising a rubber structure. The invention also relates to a method for producing said wiper blade, and to a wiper frame arrangement. Background technique [0002] Motor vehicles are often equipped with windshield wiper systems. These systems provide washing of the windshield and prevent interference with the driver's vision. Windshield wipers are typically driven by a wiper arm that performs an angular reciprocating motion and holds the wiper extended, which in turn carries the wiper blade, which is at least partially made of a resilient material. These blades are called wiper blades. They rub against the windshield and dislodge the water, taking it out of the driver's field of vision. [0003] Conventionally, wipers are made in the form of hinged rods that hold the wiper blades in several discrete positions. In newer versions called "flat blades", the wipers form ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60S1/38C08L7/00C08L9/00
CPCB60S1/38C08L7/00C08L9/00B60S2001/3829C08L91/00C08L91/06C08K3/04C08K3/36C08K5/18C08K5/3437C08K5/09C08K3/22C08K5/47C08K3/06C08K5/31
Inventor B·朱莉亚B·沃热I·马加什
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN