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Editorial: North America continues to be a land of opportunity
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While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms...
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While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share. While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share. $While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share.
Auto industry's uncertain future to be focus of keynote talks
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AKRON—The automotive industry is changing, and doing so rather quickly. With the advent of autonomous vehicles and ride-sharing, consumer habits and expectations are shaping the future of...
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AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies. AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies. $AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies.
New Mountain Capital acquires Gelest
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MORRISVILLE, Pa.—Growth can be quick, but sometimes, it takes patience. That's one of the reasons that led Gelest Inc. President Barry Arkles to partner this year with New Mountain Capital, ...
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MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets. MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets. $ MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets.
RMA rebrands itself as U.S. Tire Manufacturers Association
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WASHINGTON—After 102 years as the Rubber Manufacturers Association, one of the nation's oldest rubber industry association has rebranded itself as the U.S. Tire Manufacturers Association....
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WASHINGTON—After 102 years as the Rubber Manufacturers Association, one of the nation's oldest rubber industry associations has rebranded itself as the U.S. Tire Manufacturers Association. WASHINGTON—After 102 years as the Rubber Manufacturers Association, one of the nation's oldest rubber industry associations has rebranded itself as the U.S. Tire Manufacturers Association. $WASHINGTON—After 102 years as the Rubber Manufacturers Association, one of the nation's oldest rubber industry associations has rebranded itself as the U.S. Tire Manufacturers Association.
Fields retires as Ford CEO in shake-up; ex-Steelcase head named new chief
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DETROIT—Ford Motor Co., in a sweeping management shake-up, named Jim Hackett, former CEO of Steelcase Inc., as its new chief executive, replacing Mark Fields, 56, who is stepping down amid...
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DETROIT—Ford has named Jim Hackett, former CEO of Steelcase, as its new chief executive, replacing Mark Fields, who is stepping down amid pressure from shareholders over a slumping stock price. DETROIT—Ford has named Jim Hackett, former CEO of Steelcase, as its new chief executive, replacing Mark Fields, who is stepping down amid pressure from shareholders over a slumping stock price. $DETROIT—Ford has named Jim Hackett, former CEO of Steelcase, as its new chief executive, replacing Mark Fields, who is stepping down amid pressure from shareholders over a slumping stock price.
Huntsman and Clariant poised to merge
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WOODLANDS, Texas—An on-again, off-again merger of Huntsman Corp. and Clariant International Ltd. looks like it will finally come to fruition.Huntsman and Clariant announced May 22 that they ...
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WOODLANDS, Texas—An on-again, off-again merger of Huntsman and Clariant International looks like it will finally come to fruition. WOODLANDS, Texas—An on-again, off-again merger of Huntsman and Clariant International looks like it will finally come to fruition. $WOODLANDS, Texas—An on-again, off-again merger of Huntsman and Clariant International looks like it will finally come to fruition.
Wacker expands silicone production in Brazil
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JANDIRA, Brazil—Wacker Chemie A.G. is expanding its silicone production at its Jandira site near Sao Paulo in response to regional demand for specialty silicones.The 236,800-sq.-ft....
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JANDIRA, Brazil—Wacker Chemie is expanding its silicone production at its Jandira site near Sao Paulo in response to regional demand for specialty silicones. JANDIRA, Brazil—Wacker Chemie is expanding its silicone production at its Jandira site near Sao Paulo in response to regional demand for specialty silicones. $JANDIRA, Brazil—Wacker Chemie is expanding its silicone production at its Jandira site near Sao Paulo in response to regional demand for specialty silicones.
Hella uses LSR for first time in serial production headlamps
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LIPPSTADT, Germany—Liquid silicone rubber is a new player in automotive headlamps. The story of how it got there really started a couple of years ago. Back to a presentation at the VDI...
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LIPPSTADT, Germany—Liquid silicone rubber is a new player in automotive headlamps. The story of how it got there really started a couple of years ago. LIPPSTADT, Germany—Liquid silicone rubber is a new player in automotive headlamps. The story of how it got there really started a couple of years ago. $LIPPSTADT, Germany—Liquid silicone rubber is a new player in automotive headlamps. The story of how it got there really started a couple of years ago.
Goodyear scholarships, grants support STEM learning
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AKRON — In continuation of its commitment to support science, technology, engineering and math (STEM) education, Goodyear has provided $20,500 in scholarships to 20 Northeast Ohio high...
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AKRON — In continuation of its commitment to support science, technology, engineering and math (STEM) education, Goodyear has provided $20,500 in scholarships to 20 Northeast Ohio high school students and provided grants to local schools. AKRON — In continuation of its commitment to support science, technology, engineering and math (STEM) education, Goodyear has provided $20,500 in scholarships to 20 Northeast Ohio high school students and provided grants to local schools. $AKRON — In continuation of its commitment to support science, technology, engineering and math (STEM) education, Goodyear has provided $20,500 in scholarships to 20 Northeast Ohio high school students and provided grants to local schools.
Avantor, NuSil complete merger
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ANAHEIM, Calif.—NuSil Technologies L.L.C. and Avantor Performance Materials L.L.C. have completed their merger, creating an entity for which their majority private equity owner has high...
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ANAHEIM, Calif.—NuSil Technologies and Avantor Performance Materials have completed their merger, creating an entity for which their majority private equity owner has high hopes. ANAHEIM, Calif.—NuSil Technologies and Avantor Performance Materials have completed their merger, creating an entity for which their majority private equity owner has high hopes. $ANAHEIM, Calif.—NuSil Technologies and Avantor Performance Materials have completed their merger, creating an entity for which their majority private equity owner has high hopes.
Digital Edition
Digital Edition
Published on September 9, 2014

ITEC 2014 Paper 22: Worldwide Tire Surveys

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Date Published September 9, 2014
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The inflation pressure of the tire impacts all aspects of its performance: handling, treadwear, durability, and rolling resistance.  Halobutyl rubber is the polymer of choice to be used in the innerliner compound due to its excellent air and moisture impermeability, and its resistance to flex-fatigue and oxidative aging.  During the last 15 years, a number of surveys of passenger car radial tires have been performed to identify those features in the innerliner area that relate to improved tire performance.  150 tire brands from 30 manufacturers around the world have been evaluated and will be discussed.  Properties measured include innerliner gauge and composition (polymers, fillers), and liner cushion gauge and its construction.  Tire performances measured were inflation pressure loss rates, roadwheel durability, and more recently rolling resistance due to the mandatory government regulations now in effect to label tires.  Properties and performance of tires varies widely between different companies, among different regions within a company, and/or among multiple brand names within a company.  Using computer analysis, statistically significant trends were identified and are shown.  For example, performance is different for tires manufactured in different regions of the world (namely the Americas, Asia-Pacific and Europe), by a Top 10 company (based on total sales), and/or when manufactured as an original equipment versus a replacement market tire.  Since tires are a globally traded commodity, where the tire is purchased can show different trends from where it is manufactured.  For example, tires manufactured in the U.S. have the thickest cured innerliner gauges, the highest halobutyl rubber (phr) and halobutyl content (% in the formulation), the highest effective halobutyl rubber level (content multiplied by innerliner gauge), and gives the lowest inflation pressure loss rate values (IPLR).  Similar trends are observed for tires manufactured by Top 10 companies and also for tires made for the original equipment market.  Changes to the innerliner and liner cushion gauge and in the construction of the liner cushion can be observed during this 15-year time period.  Construction changes include using no liner cushion, the liner cushion being continuous from bead-to-bead between the innerliner and the carcass, the liner cushion being placed from shoulder to shoulder, or placed only as strips in the shoulder areas.  Some changes probably result from use of newer manufacturing equipment that help minimize the cord penetration into the innerliner, thus resulting in a more uniform thickness and improved tire air retention.   Presented by Chris Napier, ExxonMobil Chemical Company.

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