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

Rubber composition for tire

A rubber composition and tire technology, which is applied in special tires, tire parts, transportation and packaging, etc., can solve problems such as difficulty in ensuring wear resistance, and achieve excellent grip and wear resistance on wet roads. Improved road grip and wear resistance, excellent wet road grip

Active Publication Date: 2015-12-16
YOKOHAMA RUBBER CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the effect of improving rolling resistance and adhesion was found in this rubber composition, it was difficult to ensure the wear resistance required for the above-mentioned pneumatic tire for RV vehicles.

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
  • Rubber composition for tire
  • Rubber composition for tire
  • Rubber composition for tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0049] The compounding agents shown in Table 3 were blended in common to prepare 17 rubber compositions for tires (Examples 1 to 8, Comparative Examples 1 to 9) composed of the compounding shown in Tables 1 and 2 as follows: desulfurization and vulcanization The components other than the accelerator were kneaded in a 1.8L closed mixer for 5 minutes, the master batch was discharged, and sulfur and a vulcanization accelerator were added to the discharged master batch and kneaded with an open roll. In addition, in Tables 1 and 2, since styrene-butadiene rubber (SBR1) and terminal modified styrene-butadiene rubber (modified SBR1~3) contain 37.5 parts by weight of oil-extended oil, the addition in the column of compounding quantity indicates the actual compounding In addition to the amount, the net compounding amount of each SBR after removing the oil-extended oil is also indicated in parentheses. In addition, the total of the oil components (the oil-extended oil contained in the st...

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

PropertyMeasurementUnit
Nitrogen adsorption specific surface areaaaaaaaaaaa
Softening pointaaaaaaaaaa
Softening pointaaaaaaaaaa
Login to View More

Abstract

Provided is a rubber composition for a tire which exhibits lower rolling resistance and improved wet performance and wear resistance relative to conventional levels. Specifically provided is a rubber composition obtained by blending 30-60 parts by mass of silica, 20-50 parts by mass of carbon black having a surface area of 120-150 m2 / g as determined by nitrogen adsorption, and 50-80 parts by mass of an inorganic filler including the silica and the carbon black into 100 parts by mass of a diene rubber that includes 20-50 mass% of a butadiene rubber and 50-80 mass% of a terminal-modified styrene-butadiene rubber having a vinyl unit content of 40 mass% or greater, said rubber composition being characterized by comprising a total of 10-30 parts by mass of oil constituents.

Description

Technical field [0001] The present invention relates to a rubber composition for tires having lower rolling resistance, wet grip and abrasion resistance higher than the conventional level. Background technique [0002] In recent years, pneumatic tires for passenger vehicles are required to have both low rolling resistance and wet grip. In addition, at the same time, improved wear resistance is required to extend the life of the tire. In particular, the pneumatic tires for station wagons (hereinafter referred to as RV cars.) bear a large load from RV cars, and therefore rubber compositions that emphasize abrasion resistance are used. However, in recent years, the JATMA marking (marking method) system has been started, which requires a higher level of low rolling resistance and wet grip. It is required to improve the low rolling resistance and wet grip of pneumatic tires for RV vehicles. Sex. [0003] At present, in order to improve the balance of low rolling resistance and wet gr...

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
IPC IPC(8): C08L15/00C08C19/00C08K3/04C08K3/36C08L9/00C08L45/00C08L91/00
CPCC08L15/00C08L91/00B60C1/0016C08K3/04C08K3/36C08L7/00C08L9/00Y02T10/86C08L9/06
Inventor 武田慎也
Owner YOKOHAMA RUBBER CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com