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Sulfur-crosslinkable rubber mixture and vehicle tire

A rubber compound and vehicle technology, applied in special tires, vehicle parts, tire parts, etc., can solve the problems of rubber compound tear resistance, wet grip index degradation, etc., to achieve short complete curing time, good processability, cost saving effect

Active Publication Date: 2017-05-31
CONTINENTAL REIFEN DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An increased proportion of fillers is accompanied by disadvantages in the rolling resistance, while an increase in the network leads to a deterioration of the tear resistance properties of the rubber compound as well as wet grip indicators

Method used

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  • Sulfur-crosslinkable rubber mixture and vehicle tire
  • Sulfur-crosslinkable rubber mixture and vehicle tire
  • Sulfur-crosslinkable rubber mixture and vehicle tire

Examples

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Embodiment Construction

[0151] The invention will now be described in detail with the aid of comparative examples and examples, which are summarized in Tables 1 to 4.

[0152] Comparative mixtures are identified by V and inventive mixtures by E.

[0153] The mixture production is carried out in a laboratory mixer with a volume of 300 microliters to 3 liters under usual conditions in two hours according to the usual methods in the rubber industry, wherein firstly in the first mixing step (basic mixing step) All ingredients except the curing system (sulfur and substances affecting curing) were mixed at 145°C to 165°C for 200 to 600 seconds with a target temperature of 152°C to 157°C. The finished mixture is produced by adding the curing system in a second step (the finished mixing step), where it is mixed at 90°C to 120°C for 180 to 300 seconds.

[0154] General methods for producing rubber compounds and their cured products are described in "Handbook of Rubber Technology", W. Hofmann, Hanser Verlag 1...

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Abstract

The invention relates to a sulfur-crosslinkable rubber mixture, in particular for treads of vehicle tires, and to a vehicle tire. The rubber mixture contains at least the following components: at least one diene rubber and 10 to 200 phr of at least one silicic acid and 2 to 20 phf of at least one silane having general empirical formula I) [(R1)3Si-X]mSn(R2)2-m, wherein the residues R1 within a molecule can be the same or different and are alkoxy groups having 1 to 10 carbon atoms or cyclic dialkoxy groups having 2 to 10 carbon atoms or cycloalkoxy groups having 4 to 10 carbon atoms or phenoxy groups or aryl groups having 6 to 20 carbon atoms or alkyl groups having 1 to 10 carbon atoms or alkenyl groups having 2 to 20 carbon atoms or aralkyl groups having 7 to 20 carbon atoms or halides and wherein X is a polar organic group containing urea and wherein m assumes the value 1 or 2 and wherein n is an integer from 1 to 8 and wherein R2 is a hydrogen atom or an acyl group having 1 to 20 carbon atoms.

Description

technical field [0001] The invention relates to a sulfur-crosslinkable rubber mixture, in particular for treads of vehicle tyres, and to a vehicle tyre. Background technique [0002] The rubber compound of the tread determines to a large extent the running characteristics of vehicle tires, especially pneumatic vehicle tires. The term vehicle tires is understood in this document to mean vehicle pneumatic tires, all-rubber tires and two-wheel tires. [0003] Likewise, the rubber compound primarily used for belts, hoses or cords in locations subject to strong mechanical loads is primarily responsible for providing stability and durability to such rubber articles. Therefore, very high demands are placed on these rubber compounds for vehicle pneumatic tires, cords, belts and hoses. [0004] There is a conflict of purpose between most of the known tire properties such as wet grip behavior, dry actuation, handling behavior, rolling resistance, winter behavior, wear behavior and f...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L7/00C08L9/06C08L21/00C08K13/02C08K3/36C08K5/548C08K3/06B60C1/00
CPCC08K3/36C08K5/548B29B7/7495B60C1/0016B60C1/00C08K3/06C08K3/22C08K5/09C08K5/31C08L7/00C08L91/00C08L9/06C08L9/00Y02T10/86C08L21/00C08L2205/02C08L2205/03C08L2312/00
Inventor 基尔斯滕·施韦肯迪克诺贝特·米勒卡拉·雷克尤利娅·舍费尔
Owner CONTINENTAL REIFEN DEUTSCHLAND GMBH
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