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Changed vote makes difference in ITC decision
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WASHINGTON—The shift of one vote caused the International Trade Commission to make a final determination that the U.S. truck and bus tire manufacturing industry is not being materially...
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WASHINGTON—The shift of one vote caused the International Trade Commission to make a final determination that the U.S. truck and bus tire manufacturing industry is not being materially injured because of imports from China. WASHINGTON—The shift of one vote caused the International Trade Commission to make a final determination that the U.S. truck and bus tire manufacturing industry is not being materially injured because of imports from China. $WASHINGTON—The shift of one vote caused the International Trade Commission to make a final determination that the U.S. truck and bus tire manufacturing industry is not being materially injured because of imports from China.
Goodyear, Cooper Tire employees honored with STEP Ahead awards
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AKRON—The Manufacturing Institute will honor five women who work for Goodyear and Cooper Tire & Rubber Co. at its upcoming Women in Manufacturing STEP (Science, Technology, Engineering...
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AKRON—The Manufacturing Institute will honor five women who work for Goodyear and Cooper at its upcoming Women in Manufacturing STEP (Science, Technology, Engineering and Production) Ahead Awards. AKRON—The Manufacturing Institute will honor five women who work for Goodyear and Cooper at its upcoming Women in Manufacturing STEP (Science, Technology, Engineering and Production) Ahead Awards. $AKRON—The Manufacturing Institute will honor five women who work for Goodyear and Cooper at its upcoming Women in Manufacturing STEP (Science, Technology, Engineering and Production) Ahead Awards.
James Walker to unveil new elastomer family
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CHESHIRE, England—A sealing products manufacturer from the United Kingdom is ready to release a new family of elastomers it will use in its goods to meet the ever-increasing demands of the...
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CHESHIRE, England—A sealing products manufacturer from the United Kingdom is ready to release a new family of elastomers it will use in its goods to meet the ever-increasing demands of the oil and gas industry. CHESHIRE, England—A sealing products manufacturer from the United Kingdom is ready to release a new family of elastomers it will use in its goods to meet the ever-increasing demands of the oil and gas industry. $CHESHIRE, England—A sealing products manufacturer from the United Kingdom is ready to release a new family of elastomers it will use in its goods to meet the ever-increasing demands of the oil and gas industry.
Oil and gas market looking up, but profits hard to come by
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WASHINGTON—This year will be better than 2016 for the oil and gas industry and the rubber and polymer product manufacturers that supply them, according to industry officials and experts....
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WASHINGTON—This year will be better than 2016 for the oil and gas industry and the rubber and polymer product manufacturers that supply them, according to industry officials and experts. WASHINGTON—This year will be better than 2016 for the oil and gas industry and the rubber and polymer product manufacturers that supply them, according to industry officials and experts. $WASHINGTON—This year will be better than 2016 for the oil and gas industry and the rubber and polymer product manufacturers that supply them, according to industry officials and experts.
China slides to No. 2 tire trading partner
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AKRON—Canada replaced China last year as the No. 1 trading partner of the U.S. in tires. The value of China's imports to the U.S.—impacted primarily by the cut in consumer tire...
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AKRON—Canada replaced China last year as the No. 1 trading partner of the U.S. in tires. AKRON—Canada replaced China last year as the No. 1 trading partner of the U.S. in tires. $AKRON—Canada replaced China last year as the No. 1 trading partner of the U.S. in tires.
ITC antidumping decision brings mixed reactions
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As with any decision regarding imported tires and tariffs and duties, there are winners and losers.That certainly is the case following the surprising Feb. 22 decision by the U.S. International...
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As with any decision regarding imported tires and tariffs and duties, there are winners and losers. As with any decision regarding imported tires and tariffs and duties, there are winners and losers. $As with any decision regarding imported tires and tariffs and duties, there are winners and losers.
Henkel, Benteler making composite leaf springs for Volvo
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DUESSELDORF, Germany—Laundry and personal care products-to-reactive polyurethane systems company, Henkel A.G. and automotive composites firm Benteler S.G.L. are supplying polyurethane...
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DUESSELDORF, Germany—Henkel and Benteler are supplying polyurethane composite leaf springs to the Volvo S90 and V90 following their introduction on the XC90 crossover SUV. DUESSELDORF, Germany—Henkel and Benteler are supplying polyurethane composite leaf springs to the Volvo S90 and V90 following their introduction on the XC90 crossover SUV. $DUESSELDORF, Germany—Henkel and Benteler are supplying polyurethane composite leaf springs to the Volvo S90 and V90 following their introduction on the XC90 crossover SUV.
Lubrizol invests to grow medical unit
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ANAHEIM, Calif.—Lubrizol Corp.'s LifeSciences unit has added thermoplastic polyurethane compounding abilities through a partnership with a medical compounder. Compounding Solutions, which...
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ANAHEIM, Calif.—Lubrizol's LifeSciences unit has added thermoplastic polyurethane compounding abilities through a partnership with a medical compounder. ANAHEIM, Calif.—Lubrizol's LifeSciences unit has added thermoplastic polyurethane compounding abilities through a partnership with a medical compounder. $ANAHEIM, Calif.—Lubrizol's LifeSciences unit has added thermoplastic polyurethane compounding abilities through a partnership with a medical compounder.
Doublestar inks Kumho deal, but Park counter-offer looms
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SEOUL, South Korea—China's Qingdao Doublestar Co. said it has signed an agreement with Kumho Tire creditors to buy a 42 percent stake in the South Korean tire maker in a deal that could...
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SEOUL, South Korea—Doublestar said it has signed an agreement with Kumho Tire creditors to buy a 42 percent stake in the South Korean tire maker in a deal that could enable Doublestar to further expand in China. SEOUL, South Korea—Doublestar said it has signed an agreement with Kumho Tire creditors to buy a 42 percent stake in the South Korean tire maker in a deal that could enable Doublestar to further expand in China. $SEOUL, South Korea—Doublestar said it has signed an agreement with Kumho Tire creditors to buy a 42 percent stake in the South Korean tire maker in a deal that could enable Doublestar to further expand in China.
Raumedic ready to chase new U.S. business
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ANAHEIM, Calif.—Raumedic A.G. is poised to make further inroads into the North American market now that it has a manufacturing presence in the region. Its first plant in the U.S., located...
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ANAHEIM, Calif.—Raumedic is poised to make further inroads into the North American market now that it has a manufacturing presence in the region. ANAHEIM, Calif.—Raumedic is poised to make further inroads into the North American market now that it has a manufacturing presence in the region. $ ANAHEIM, Calif.—Raumedic is poised to make further inroads into the North American market now that it has a manufacturing presence in the region.
Digital Edition
Digital Edition
Published on September 1, 2002

A Comparison of Wet Grip Enhancing Polymers

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Date Published September 1, 2002
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In Europe there has always been a strong emphasis on the wet traction performance of passenger car tires because of the prevailing weather conditions and also because of the demand for high performance tires. In North America wear and rolling resistance have traditionally been the main requirements but higher levels traction are now being demanded.
Wet grip represents one corner of the so called “magic triangle”, the others being rolling resistance and wear resistance. In general improvements in wet grip tend to be accompanied by increased rolling resistance and reduced wear resistance. Certain types of polymer such as high styrene E-SBR, and halobutyl rubber (CIIR or BIIR) have a significant effect on wet grip and have been used specifically as wet grip improvers in black filled tread compounds. Typically 5 - 20 phr of such polymers would be used, normally with some sacrifice in rolling resistance or wear resistance. More recently, polymers such as 3,4 polyisoprene (3,4 IR), nitrile rubber (NBR) and nitrile-styrene-butadiene rubber (NSBR) have been suggested as wet grip enhancing polymers. Most wet grip enhancing polymers are incompatible with tread elastomers such as SBR and BR and have relatively high glass transition temperatures.
 
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