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Michelin debuts new high-performance adhesive
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CLERMONT-FERRAND, France—Michelin will be leaving an old industry standard behind with some of its lines of tires later this year. After more than nine years of research and development,...
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CLERMONT-FERRAND, France—After more than nine years of research and development, Michelin is launching a new high-performance resin adhesive designed for bonding textiles. CLERMONT-FERRAND, France—After more than nine years of research and development, Michelin is launching a new high-performance resin adhesive designed for bonding textiles. $CLERMONT-FERRAND, France—After more than nine years of research and development, Michelin is launching a new high-performance resin adhesive designed for bonding textiles.
A. Schulman sets June meeting to vote on merger
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FAIRLAWN, Ohio—A. Schulman Inc. has set June 14 as the date for a special meeting for shareholders to vote on a merger agreement with global plastics, chemicals and refining company...
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FAIRLAWN, Ohio—A. Schulman has set June 14 as the date for a special meeting for shareholders to vote on a merger agreement with global plastics, chemicals and refining company LyondellBasell. FAIRLAWN, Ohio—A. Schulman has set June 14 as the date for a special meeting for shareholders to vote on a merger agreement with global plastics, chemicals and refining company LyondellBasell. $FAIRLAWN, Ohio—A. Schulman has set June 14 as the date for a special meeting for shareholders to vote on a merger agreement with global plastics, chemicals and refining company LyondellBasell.
Tekni-Plex expands medical portfolio with Dunn Industries acquisition
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WAYNE, Pa.—Tekni-Plex Inc. is expanding its capabilities in specialty extruded medical tubing by acquiring Dunn Industries Inc. Financial details were not disclosed, but Tekni-Plex said the ...
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WAYNE, Pa.—Tekni-Plex is expanding its capabilities in specialty extruded medical tubing by acquiring Dunn Industries. WAYNE, Pa.—Tekni-Plex is expanding its capabilities in specialty extruded medical tubing by acquiring Dunn Industries. $WAYNE, Pa.—Tekni-Plex is expanding its capabilities in specialty extruded medical tubing by acquiring Dunn Industries.
Raw material prices still volatile
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WASHINGTON—Volatility in raw materials prices for tires and rubber goods has moderated since last year, but is far from gone, according to manufacturers and industry analysts. Tire...
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WASHINGTON—Volatility in raw materials prices for tires and rubber goods has moderated since last year, but is far from gone, according to manufacturers and industry analysts. WASHINGTON—Volatility in raw materials prices for tires and rubber goods has moderated since last year, but is far from gone, according to manufacturers and industry analysts. $WASHINGTON—Volatility in raw materials prices for tires and rubber goods has moderated since last year, but is far from gone, according to manufacturers and industry analysts.
Bridgestone, Goodyear to create 50/50 wholesale venture
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AKRON—Bridgestone Americas and Goodyear are combining their respective wholesale tire distribution assets into a 50/50 joint venture, called TireHub L.L.C., that will operate through 80-...
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AKRON—Bridgestone Americas and Goodyear are combining their respective wholesale tire distribution assets into a 50/50 joint venture, called TireHub, that will operate through 80-plus distribution centers nationwide. AKRON—Bridgestone Americas and Goodyear are combining their respective wholesale tire distribution assets into a 50/50 joint venture, called TireHub, that will operate through 80-plus distribution centers nationwide. $AKRON—Bridgestone Americas and Goodyear are combining their respective wholesale tire distribution assets into a 50/50 joint venture, called TireHub, that will operate through 80-plus distribution centers nationwide.
Impact of steel tariffs looms over industry
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WASHINGTON—Tire manufacturers still are assessing the possible effects of 25 percent tariffs on tire-quality steel wire rod imports to the U.S., but all indications are that the impact...
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WASHINGTON—Tire manufacturers still are assessing the possible effects of 25 percent tariffs on tire-quality steel wire rod imports to the U.S., but all indications are that the impact could be sweeping. WASHINGTON—Tire manufacturers still are assessing the possible effects of 25 percent tariffs on tire-quality steel wire rod imports to the U.S., but all indications are that the impact could be sweeping. $WASHINGTON—Tire manufacturers still are assessing the possible effects of 25 percent tariffs on tire-quality steel wire rod imports to the U.S., but all indications are that the impact could be sweeping.
Photo gallery: Ace shows off expansion
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RAVENNA, Ohio—At Ace Products and Consulting's open house on April 12, visitors showed up to see the facility after the company finished its most recent expansion. Ace added 3,500 square...
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RAVENNA, Ohio—At Ace Products and Consulting's open house on April 12, visitors showed up to see the facility after the company finished its most recent expansion. RAVENNA, Ohio—At Ace Products and Consulting's open house on April 12, visitors showed up to see the facility after the company finished its most recent expansion. $RAVENNA, Ohio—At Ace Products and Consulting's open house on April 12, visitors showed up to see the facility after the company finished its most recent expansion.
Continental developing aquaplaning warning system
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FRANKFURT, Germany—Continental A.G. engineers are developing an aquaplaning alert system that uses signals from surround-view cameras and tire-mounted electronic sensors to warn the...
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FRANKFURT, Germany—Continental engineers are developing an aquaplaning alert system that uses signals from surround-view cameras and tire-mounted electronic sensors to warn the vehicle's driver and engage active stabilization measures. FRANKFURT, Germany—Continental engineers are developing an aquaplaning alert system that uses signals from surround-view cameras and tire-mounted electronic sensors to warn the vehicle's driver and engage active stabilization measures. $FRANKFURT, Germany—Continental engineers are developing an aquaplaning alert system that uses signals from surround-view cameras and tire-mounted electronic sensors to warn the vehicle's driver and engage active stabilization measures.
Doublestar set to take control of Kumho
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SEOUL, South Korea—Qingdao Doublestar Group may finally be gaining control of Kumho Tire Co. Ltd.After nearly a year of offers, Kumho said in an April 1 statement that its management and...
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SEOUL, South Korea—Qingdao Doublestar Group may finally be gaining control of Kumho Tire. SEOUL, South Korea—Qingdao Doublestar Group may finally be gaining control of Kumho Tire. $SEOUL, South Korea—Qingdao Doublestar Group may finally be gaining control of Kumho Tire.
Commerce postpones countervailing duty determination on rubber bands
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WASHINGTON—At the request of Alliance Rubber Co., the U.S. Department of Commerce is postponing its countervailing duty determinations on rubber bands imported from China and Thailand until...
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WASHINGTON—At the request of Alliance Rubber, the U.S. Department of Commerce is postponing its countervailing duty determinations on rubber bands imported from China and Thailand until July 2. WASHINGTON—At the request of Alliance Rubber, the U.S. Department of Commerce is postponing its countervailing duty determinations on rubber bands imported from China and Thailand until July 2. $WASHINGTON—At the request of Alliance Rubber, the U.S. Department of Commerce is postponing its countervailing duty determinations on rubber bands imported from China and Thailand until July 2.
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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