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Executive of the Year: William Stockwell makes lasting impact on his family's company, employees
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William Stockwell always wanted to follow his own path. Oddly enough, embracing the same family legacy he initially felt would prevent him from forging his own identity has allowed him to do just...
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William Stockwell always wanted to follow his own path. Oddly enough, embracing the same family legacy he initially felt would prevent him from forging his own identity has allowed him to do just that. William Stockwell always wanted to follow his own path. Oddly enough, embracing the same family legacy he initially felt would prevent him from forging his own identity has allowed him to do just that. $ William Stockwell always wanted to follow his own path. Oddly enough, embracing the same family legacy he initially felt would prevent him from forging his own identity has allowed him to do just that.
Editorial: Trade dispute over rubber bands has big implications
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Much of the talk regarding international trade wars, tariffs and duties revolves around what impact those activities will have on the automobile industry and, closer to our readership, the tire...
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Much of the talk regarding international trade wars, tariffs and duties revolves around what impact those activities will have on the automobile industry and, closer to our readership, the tire sector. Much of the talk regarding international trade wars, tariffs and duties revolves around what impact those activities will have on the automobile industry and, closer to our readership, the tire sector. $ Much of the talk regarding international trade wars, tariffs and duties revolves around what impact those activities will have on the automobile industry and, closer to our readership, the tire sector.
Auto sales volume dips as cars sputter, still on pace for 17 million sold this year
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U.S. light-vehicle sales slipped 0.5 percent in November as robust fleet shipments by some auto makers failed to offset slumping demand for passenger cars. But the seasonally adjusted annualized...
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U.S. light-vehicle sales slipped 0.5 percent in November as robust fleet shipments by some auto makers failed to offset slumping demand for passenger cars. U.S. light-vehicle sales slipped 0.5 percent in November as robust fleet shipments by some auto makers failed to offset slumping demand for passenger cars. $U.S. light-vehicle sales slipped 0.5 percent in November as robust fleet shipments by some auto makers failed to offset slumping demand for passenger cars.
Mary Barra pressed by Ohio senators to keep GM's Lordstown plant open
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WASHINGTON—Ohio's Sens. Sherrod Brown and Rob Portman urged General Motors CEO Mary Barra to accelerate contract talks with union officials and decisions on where to build new products so...
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WASHINGTON—Ohio's Sens. Sherrod Brown and Rob Portman urged General Motors CEO Mary Barra to accelerate contract talks with union officials and decisions on where to build new products so the state's Lordstown plant can continue operating. WASHINGTON—Ohio's Sens. Sherrod Brown and Rob Portman urged General Motors CEO Mary Barra to accelerate contract talks with union officials and decisions on where to build new products so the state's Lordstown plant can continue operating. $WASHINGTON—Ohio's Sens. Sherrod Brown and Rob Portman urged General Motors CEO Mary Barra to accelerate contract talks with union officials and decisions on where to build new products so the state's Lordstown plant can continue operating.
Wacky World of Rubber: Nectar bets on science, humor in new ad campaign
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Nectar Sleep gets it. Science sells. Late last month, Nectar launched a YouTube ad featuring Mayim Bialik, who probably is best known for her portrayal of neurobiologist Amy Farrah Fowler in the...
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Nectar Sleep gets it. Science sells. That's why the company launched a new ad featuring actress and real-life scientist Mayim Bialik, best known for her portrayal of neurobiologist Amy Farrah Fowler in the CBS sitcom "The Big Bang Theory." Nectar Sleep gets it. Science sells. That's why the company launched a new ad featuring actress and real-life scientist Mayim Bialik, best known for her portrayal of neurobiologist Amy Farrah Fowler in the CBS sitcom "The Big Bang Theory." $Nectar Sleep gets it. Science sells. That's why the company launched a new ad featuring actress and real-life scientist Mayim Bialik, best known for her portrayal of neurobiologist Amy Farrah Fowler in the CBS sitcom "The Big Bang Theory."
Evonik launches silica production at South Carolina plant
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GOOSE CREEK, S.C.—Evonik Industries A.G. has launched production of precipitated silicas at its new world scale plant in Goose Creek.Construction of the facility, located near Charleston, S....
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GOOSE CREEK, S.C.—Evonik has launched production of precipitated silicas at its new world scale plant in Goose Creek. GOOSE CREEK, S.C.—Evonik has launched production of precipitated silicas at its new world scale plant in Goose Creek. $GOOSE CREEK, S.C.—Evonik has launched production of precipitated silicas at its new world scale plant in Goose Creek.
Diversification will help suppliers weather storm from GM plant shutdown in Lordstown
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Bill Koehler, CEO of Team NEO, is concerned about the workers who soon could be losing their jobs due to General Motors Co.'s decision to not give the Lordstown, Ohio, plant any new products next...
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Bill Koehler, CEO of Team NEO, is concerned about the workers who soon could be losing their jobs due to General Motors' decision to close its Lordstown, Ohio, plant. But when it comes to the region overall, he has fewer worries. Bill Koehler, CEO of Team NEO, is concerned about the workers who soon could be losing their jobs due to General Motors' decision to close its Lordstown, Ohio, plant. But when it comes to the region overall, he has fewer worries. $Bill Koehler, CEO of Team NEO, is concerned about the workers who soon could be losing their jobs due to General Motors' decision to close its Lordstown, Ohio, plant. But when it comes to the region overall, he has fewer worries.
Ready for self-driving future? Sorry, it's drizzling out.
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EAST LANSING, Mich.—Even a little crummy weather might pose big problems for self-driving systems.New research from Michigan State University suggests light rain and drizzle can confound...
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EAST LANSING, Mich.—Even a little crummy weather might pose big problems for self-driving systems. EAST LANSING, Mich.—Even a little crummy weather might pose big problems for self-driving systems. $EAST LANSING, Mich.—Even a little crummy weather might pose big problems for self-driving systems.
Latexco expands Georgia plant, adding site in Phoenix
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LAVONIA, Ga.—Latexco US is making sure it has the U.S. bedding market covered. The producer of latex and polyurethane products is investing on both the east and west coasts to shore up its...
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LAVONIA, Ga.—Latexco US is making sure it has the U.S. bedding market covered. LAVONIA, Ga.—Latexco US is making sure it has the U.S. bedding market covered. $LAVONIA, Ga.—Latexco US is making sure it has the U.S. bedding market covered.
Arlanxeo monitoring Rhine water levels
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MAASTRICHT, Netherlands—Arlanxeo is monitoring all-time low water levels on the river Rhine in Germany, which have impacted a number of other polymer chemicals companies including BASF S.E., ...
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MAASTRICHT, Netherlands—Arlanxeo is monitoring all-time low water levels on the river Rhine in Germany, which have impacted a number of other polymer chemicals companies including BASF, Covestro and Evonik. MAASTRICHT, Netherlands—Arlanxeo is monitoring all-time low water levels on the river Rhine in Germany, which have impacted a number of other polymer chemicals companies including BASF, Covestro and Evonik. $MAASTRICHT, Netherlands—Arlanxeo is monitoring all-time low water levels on the river Rhine in Germany, which have impacted a number of other polymer chemicals companies including BASF, Covestro and Evonik.
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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