Unlock instant, AI-driven research and patent intelligence for your innovation.

Tread rubber composition and all-weather tires

A rubber composition and tread technology, applied in special tires, tire parts, rolling resistance optimization, etc., can solve the problems of low flexural crack growth, inability to take into account cutting resistance, etc., and achieve high linearity, balanced cutting resistance, etc. Effect

Active Publication Date: 2019-04-02
PETROCHINA CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a tread rubber composition and an all-weather tire to solve the problem that the all-weather tire tread in the prior art cannot take into account the performance of cutting resistance, flex crack growth resistance and low rolling resistance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tread rubber composition and all-weather tires
  • Tread rubber composition and all-weather tires
  • Tread rubber composition and all-weather tires

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 7

[0059] The formula of the rubber composition of embodiment 1 to 7 is as follows, and the component type that adopts in these embodiments is all the same, and difference is that the consumption of each component is different:

[0060]

[0061]

Embodiment 8 to 12

[0063] The amount of each component in Examples 8 to 12 is the same as in Example 1, and the types of vulcanizing agents, reinforcing agents and other auxiliary agents are also the same as in Example 1. The difference lies in the physical properties of the raw rubber components. For details, see The following table:

[0064]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a tread rubber composition and all-weather tires. The tread rubber composition comprises: 30-50 parts of high-mooney rare-earth butadiene rubber, 10-30 parts of natural rubber and / or isoprene rubber, 20-60 parts of solution polymerized stYRene-butadiene rubber, 50-120 parts of a reinforcing agent and 0.01-5 parts of a vulcanizing agent, and the mooney viscosity of the high-mooney rare-earth butadiene rubber at 100 DEG c is 60-90; the tread rubber composition provided by the invention adopting the high-mooney rare earth butadiene rubber with the mooney viscosity of 60-90has relatively high linearity. Meanwhile, the high-mooney rare-earth butadiene rubber is mixed with the natural rubber (and / or isoprene rubber) and the solution polymerized stYRene-butadiene rubber according to the proportion, and the reinforcing agent and the vulcanizing agent with the above content are assisted, so that the cutting resistance, the bending resistance crack growth and the low rolling resistance performance of the tire tread can be better balanced, and the tread rubber composition is very suitable for being applied to the tire tread of all-weather tires.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a tread rubber composition and an all-day tire. Background technique [0002] All-weather tires are a market segment developed by tires in recent years. The tread is usually prepared by combining solution-polymerized styrene-butadiene rubber, natural rubber and butadiene rubber. The performance requirements of all-weather car tire treads are often more balanced than those of summer tire treads. In addition to maintaining the existing wear resistance, wet skid resistance and rolling resistance requirements, there are also special requirements for cutting resistance and flexing resistance. Require. However, the performance of tires often faces conflicting issues. The improvement of one aspect of performance often means the decrease of another performance. This makes the existing all-weather tire tread unable to balance cutting resistance, flex crack growth resistance and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L9/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06B60C1/00
CPCB60C1/0016C08K2003/2296C08L9/00C08L9/06C08L2205/035C08L7/00C08K13/02C08K3/04C08K3/36C08K3/22C08K5/09C08K3/06Y02T10/86
Inventor 李潇周智峰张志强林曙光周鹏松李传光梁英超
Owner PETROCHINA CO LTD