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Rubber Division opens spring meeting
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BEACHWOOD, Ohio—A keynote address and the 25-Year Club countdown to the person with the most years in the rubber industry highlighted the first day of the ACS Rubber Division's spring...
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BEACHWOOD, Ohio—A keynote address and the 25-Year Club countdown to the person with the most years in the rubber industry highlighted the first day of the ACS Rubber Division's spring technical meeting. BEACHWOOD, Ohio—A keynote address and the 25-Year Club countdown to the person with the most years in the rubber industry highlighted the first day of the ACS Rubber Division's spring technical meeting. $BEACHWOOD, Ohio—A keynote address and the 25-Year Club countdown to the person with the most years in the rubber industry highlighted the first day of the ACS Rubber Division's spring technical meeting.
Food waste emerges as possible rubber filler
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WOOSTER, Ohio—Eggshells and other food waste may be the next phase of sustainable manufacturing practices for the tire and rubber product industry, as a replacement for carbon black....
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WOOSTER, Ohio—Eggshells and other food waste may be the next phase of sustainable manufacturing practices for the tire and rubber product industry, as a replacement for carbon black. WOOSTER, Ohio—Eggshells and other food waste may be the next phase of sustainable manufacturing practices for the tire and rubber product industry, as a replacement for carbon black. $WOOSTER, Ohio—Eggshells and other food waste may be the next phase of sustainable manufacturing practices for the tire and rubber product industry, as a replacement for carbon black.
Supreme Court reverses damage award against Goodyear
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WASHINGTON—In an 8-0 decision, the U.S. Supreme Court reversed and remanded a $2.74 million damage award against Goodyear and two attorneys who represented the tire maker in a product...
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WASHINGTON—In an 8-0 decision, the U.S. Supreme Court reversed and remanded a $2.74 million damage award against Goodyear and two attorneys who represented the tire maker in a product liability lawsuit. WASHINGTON—In an 8-0 decision, the U.S. Supreme Court reversed and remanded a $2.74 million damage award against Goodyear and two attorneys who represented the tire maker in a product liability lawsuit. $WASHINGTON—In an 8-0 decision, the U.S. Supreme Court reversed and remanded a $2.74 million damage award against Goodyear and two attorneys who represented the tire maker in a product liability lawsuit.
American Biltrite project starts to pay off
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SAN ANTONIO—It's taken some patience and education, but American Biltrite (Canada) Ltd. finally is seeing business growth from a project it's been working on for more than three years. The...
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SAN ANTONIO—It's taken some patience and education, but American Biltrite finally is seeing business growth from a project it's been working on for more than three years. SAN ANTONIO—It's taken some patience and education, but American Biltrite finally is seeing business growth from a project it's been working on for more than three years. $SAN ANTONIO—It's taken some patience and education, but American Biltrite finally is seeing business growth from a project it's been working on for more than three years.
Cabot invests to upgrade Malaysia facility
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BOSTON—Cabot Corp.'s stake in the elastomer composite market, with a heavy focus on tire and industrial rubber products, is growing. The global specialty chemicals and performance materials ...
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BOSTON—Cabot is making a strategic investment to expand and upgrade its manufacturing capabilities for elastomer composites at its plant in Port Dickson, Malaysia. BOSTON—Cabot is making a strategic investment to expand and upgrade its manufacturing capabilities for elastomer composites at its plant in Port Dickson, Malaysia. $BOSTON—Cabot is making a strategic investment to expand and upgrade its manufacturing capabilities for elastomer composites at its plant in Port Dickson, Malaysia.
NAM honors U.S. senator for his support of manufacturing
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AKRON—The National Association of Manufacturers recognized U.S. Sen. Rob Portman, R-OH, with the NAM Award for Manufacturing Legislative Excellence, which was presented during an ceremony at ...
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AKRON—The National Association of Manufacturers recognized U.S. Sen. Rob Portman, R-OH, with the NAM Award for Manufacturing Legislative Excellence. AKRON—The National Association of Manufacturers recognized U.S. Sen. Rob Portman, R-OH, with the NAM Award for Manufacturing Legislative Excellence. $AKRON—The National Association of Manufacturers recognized U.S. Sen. Rob Portman, R-OH, with the NAM Award for Manufacturing Legislative Excellence.
Cheng Shin set to open two tire plants
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CHUNGHWA, Taiwan — Cheng Shin Rubber Industrial Co. Ltd.'s new plants in India and Indonesia will start production this year, the Taiwanese tire maker disclosed at its recent investor...
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CHUNGHWA, Taiwan—Cheng Shin, which goes to market under the Maxxis brand, is ready to start up its new plants in India and Indonesia. CHUNGHWA, Taiwan—Cheng Shin, which goes to market under the Maxxis brand, is ready to start up its new plants in India and Indonesia. $CHUNGHWA, Taiwan—Cheng Shin, which goes to market under the Maxxis brand, is ready to start up its new plants in India and Indonesia.
USW files complaint regarding China truck, bus tire decision
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WASHINGTON—The United Steelworkers has filed a complaint with the U.S. Court of International Trade seeking judicial review of the U.S. International Trade Commission's recent negative...
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WASHINGTON—The United Steelworkers has filed a complaint with the U.S. Court of International Trade seeking judicial review of the U.S. International Trade Commission's recent negative determination in the ITC's investigation of truck and bus tires from China. WASHINGTON—The United Steelworkers has filed a complaint with the U.S. Court of International Trade seeking judicial review of the U.S. International Trade Commission's recent negative determination in the ITC's investigation of truck and bus tires from China. $WASHINGTON—The United Steelworkers has filed a complaint with the U.S. Court of International Trade seeking judicial review of the U.S. International Trade Commission's recent negative determination in the ITC's investigation of truck and bus tires from China.
Apollo celebrates milestone event
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GYONGYOSHALASZ, Hungary—In a country filled with relics and buildings that date back several centuries, one of the world's most technologically advanced and environmentally efficient...
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GYONGYOSHALASZ, Hungary—Now that Apollo has christened its newest tire plant in Gyongyoshalasz, it can turn its attention to bolstering its presence in the North American market, specifically the U.S. and Canada. GYONGYOSHALASZ, Hungary—Now that Apollo has christened its newest tire plant in Gyongyoshalasz, it can turn its attention to bolstering its presence in the North American market, specifically the U.S. and Canada. $GYONGYOSHALASZ, Hungary—Now that Apollo has christened its newest tire plant in Gyongyoshalasz, it can turn its attention to bolstering its presence in the North American market, specifically the U.S. and Canada.
Bridgestone develops airless bicycle tires
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TOKYO—Bridgestone Corp., together with Bridgestone Cycle Co., Ltd., has developed an airless bicycle tire as part of its "air free concept" technology, the Japanese tire-maker announced...
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TOKYO—Bridgestone, in partnership with Bridgestone Cycle, has developed an airless bicycle tire as part of its "air free concept" technology. TOKYO—Bridgestone, in partnership with Bridgestone Cycle, has developed an airless bicycle tire as part of its "air free concept" technology. $TOKYO—Bridgestone, in partnership with Bridgestone Cycle, has developed an airless bicycle tire as part of its "air free concept" technology.
Digital Edition
Digital Edition
Published on January 1, 2005

Improving Processability with low Mooney HNBR for Automotive Applications

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Date Published January 1, 2005
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This Report has been authored by:Salvatore J. Monte at Kenrich Petrochemicals Inc.

Hydrogenated acrylonitrile-butadiene rubber (HNBR) is a high performance specialty elastomer that is used in a diverse array of automotive applications (seals, gaskets, o-rings, hose, timing belts) due to its unique combination of heat (up to 150°C) and oil resistance together with its excellent mechanical and dynamic properties. In order to enhance general processability characteristics of HNBR, a new low viscosity HNBR has recently been developed. Known as HNBR-AT (Advanced Technology), it possesses an acrylonitrile (ACN) content of 34 wt%, a 39 Mooney viscosity (ML 1+4@100°C) and < 0.9% residual double bond (RDB) content. This grade was specifically designed for improved processability meaning easier mixing and quicker cycle times during extrusion as well as injection, transfer and compression molding. Besides being used alone, HNBR-AT is a perfect candidate to improve the processing characteristics of higher viscosity HNBRs. The object of this work is to test this hypothesis and to incorporate ACN and RDB variation into the blended HNBRs in order to assss property and aging effects as well. The results clearly illustrated processing improvement by using low viscosity HNBR in the blends. Enhanced aging resistance against heat and oils was observed when HNBR-AT was blended with a higher RDB HNBR. Lower overall ACN level HNBR blends provided better low temperature properties and slightly higher but tolerable volume swells in the oils tested. The study results suggest the use of HNBR-AT to improve processability, and general properties of current functioning HNBR compounds. 
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