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Compounding Method to Improve Irregular Wear Resistance of Tire Tread

IP.com Disclosure Number: IPCOM000249914D
Publication Date: 2017-Apr-28
Document File: 7 page(s) / 311K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure relates to an improved process of compounding radial truck tires (TBR) comprising adding hydrocarbon resin to the tread to reduce irregular tread wear performance without adverse effects on other tread properties, wherein the hydrocarbon resin is characterized by having a high storage modulus (G') at its glass transition temperature.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 37% of the total text.

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Compounding Method to Improve Irregular Wear Resistance of Tire Tread  

Abstract: This disclosure relates to an improved process of compounding radial truck tires (TBR) comprising adding hydrocarbon resin to the tread to reduce irregular tread wear performance without adverse effects on other tread properties, wherein the hydrocarbon resin is characterized by having a high storage modulus (G’) at its glass transition temperature.

Background

Wear in the tread of a tire is a complex phenomenon but those who study the subject have broadly

simplified and described wear by one if two mechanisms, thermoxidative degradation occurring

in slow wear conditions and a tensile – tearing mechanism found in more abrasive fast wear

conditions and were in many instances wave patterns can be seen on the tread surface. Elaborating,

tread wear patterns, which affect the ultimate tire service life or removal mileage of radial truck

tires (TBR) are in, practice, one of two further types: uniform global wear and irregular wear.

Uniform global wear is preferred over irregular wear as irregular wear can cause excessive

vibrations in the vehicle, decrease the life of the tire, and increase costs to the vehicle owner.

Irregular wear can be caused both vehicle maintenance conditions and tire design, and can fall into

one of three categories:

2  

1. A “high-low” wear of lugs where the leading edge of a tread element is high...