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Methods for Improving Traction of Tire Tread

IP.com Disclosure Number: IPCOM000249913D
Publication Date: 2017-Apr-28
Document File: 5 page(s) / 411K

Publishing Venue

The IP.com Prior Art Database

Abstract

This disclosure relates to methods for improving traction of tire tread in pneumatic tires via the addition of high Tg, low molecular weight hydrocarbon resin, sometimes referred to as blended compound modifiers.

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This is the abbreviated version, containing approximately 44% of the total text.

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Methods for Improving Traction of Tire Tread  

Abstract: This disclosure relates to methods for improving traction of tire tread in pneumatic tires via the addition of high Tg, low molecular weight hydrocarbon resin, sometimes referred to as blended compound modifiers.

Background

The traction (including i) wet traction ii) dry traction and iii) snow traction) of a pneumatic tire is

one of the most important aspects of tire performance. Typically, traction can be improved by

three methods:

 optimizing tread paten design  applying specialty polymers in the tread compound which have been designed with

different micro-structures and  using additives to modify the tread compound Tg and dynamic mechanical and thermal

properties (DMT)

2  

Changing the tread pattern design suffers from its own limitations, such as that design flaws cannot

be corrected after the tread pattern has been designed and tire molds manufactured. Additionally,

the application of specialty polymers requires a substantial amount of resources to re-design the

tread compound formulation and also requires a large time investment in optimizing and testing

different formulations. Thus, using additives or compound modifiers is generally the most efficient

of these three methods. However, one challenge of additive use is that when high Tg resin

additives are added to a tread formulation, the general result is an increase in compound Tg an...