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Multi-composite reinforcements for tires

A technology of composite materials and resin composite materials, applied to the reinforcement layer of pneumatic tires, tire parts, transportation and packaging, etc., can solve problems such as structural collapse

Active Publication Date: 2018-08-31
MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In particular, it has been surprisingly noted that when these prior art CVR monofilaments are used as belt reinforcements for certain pneumatic tires, during the manufacture of these tires it is known, in particular, to undergo high pressure and extremely high temperatures ( These prior art CVR monofilaments may undergo a certain amount of compression failure due to visible collapse of their structure during the building step and / or the final step of curing these tires in the mold, usually performed at temperatures greater than 160° C.

Method used

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  • Multi-composite reinforcements for tires

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Embodiment Construction

[0028] In this application, all percentages (%) shown are by weight unless otherwise specified.

[0029] Any range of values ​​represented by the expression "between a and b" represents a range of values ​​from greater than a to less than b (i.e. excluding the endpoints a and b), while any range represented by the expression "from a to b" A value of represents a range of values ​​starting from a and going up to b (ie including the strict endpoints a and b).

[0030] Therefore, the present invention relates to a reinforcement of the multi-composite type, that is to say a composite composite material, which can be used in particular to reinforce rubber articles, such as tires for vehicles, having essential features comprising at least the following:

[0031] - one or more monofilaments made from a CVR comprising glass filaments embedded in a thermosetting resin, denoted Tg 1 The glass transition temperature is greater than 150°C;

[0032] - a layer of thermoplastic material co...

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Abstract

The invention relates to a multi-composite reinforcement (R1, R2) with improved mechanical properties, said multi-composite reinforcement comprising at least: one or more glass / resin composite monofilaments (10) comprising embedded Glass filaments (101) in a thermosetting resin (102) having a glass transition temperature expressed as Tg1 of greater than 150°C; covering said or each monofilament individually or jointly covering one of a plurality of monofilaments A layer of thermoplastic material (12) having a glass transition temperature, expressed as Tg2, of greater than 20°C. A multilayer laminate comprising such a multi-composite reinforcement. Pneumatic or non-pneumatic tires reinforced with such multi-composite reinforcements or multilayer laminates.

Description

technical field [0001] The field of the invention is that of composite reinforcements and multilayer laminates that can be used in particular to reinforce semi-finished or finished products made of rubber, such as vehicle tires of the pneumatic or non-pneumatic type. [0002] More specifically, the invention relates to composite reinforcements based on monofilaments of the "CVR" (acronym for glass-resin composite) type with high mechanical and thermal properties, comprising Continuous unidirectional multifilament glass fibers of , said monofilaments can be used in particular as reinforcing elements for these tires. Background technique [0003] In order notably to reduce the weight of the tire and to eliminate the various problems of corrosion, tire designers have long sought to find low-density textile or composite type "reinforcements" (fine long reinforcing elements). [0004] Thus, patent application EP 1 167 080 (or US 7 032 637) has described a CVR monofilament with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/08D02G3/48B60C9/00
CPCB60C2009/0416D02G3/48B60C2009/2074B60C2009/2252D10B2101/06B60C9/0064B60C2009/0425B60C2009/0433B60C2009/2077B60C2009/208
Inventor A·德尔菲诺
Owner MICHELIN & CO CIE GEN DES ESTAB MICHELIN
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