Current Issue
×

Top Stories

Title Issue Date Category Formats Records Price
RMA rebrands itself as U.S. Tire Manufacturers Association
View Description View Full Details
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....
View Full Details »
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
View Description View Full Details
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...
View Full Details »
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
View Description View Full Details
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 ...
View Full Details »
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
View Description View Full Details
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....
View Full Details »
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
View Description View Full Details
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...
View Full Details »
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
View Description View Full Details
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...
View Full Details »
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
View Description View Full Details
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...
View Full Details »
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.
Trelleborg unit appealing OTR tire import duties
View Description View Full Details
NEW YORK—Trelleborg Wheel Systems (Xingtai) Co. Ltd. has followed four other Chinese off-the-road tire manufacturers in appealing stiff new antidumping duties from the U.S. Department of...
View Full Details »
NEW YORK—Trelleborg Wheel Systems has followed four other Chinese off-the-road tire manufacturers in appealing stiff new antidumping duties from the U.S. Department of Commerce. NEW YORK—Trelleborg Wheel Systems has followed four other Chinese off-the-road tire manufacturers in appealing stiff new antidumping duties from the U.S. Department of Commerce. $NEW YORK—Trelleborg Wheel Systems has followed four other Chinese off-the-road tire manufacturers in appealing stiff new antidumping duties from the U.S. Department of Commerce.
ContiTech expanding one hose plant, closing another
View Description View Full Details
FAIRLAWN, Ohio—Continental A.G.'s ContiTech business is planning a major investment at one of its U.S. hose plants, but the project will result in the closure of a second factory.ContiTech...
View Full Details »
FAIRLAWN, Ohio—ContiTech is planning a major investment at one of its U.S. hose plants, but the project will result in the closure of a second factory. FAIRLAWN, Ohio—ContiTech is planning a major investment at one of its U.S. hose plants, but the project will result in the closure of a second factory. $FAIRLAWN, Ohio—ContiTech is planning a major investment at one of its U.S. hose plants, but the project will result in the closure of a second factory.
Momentive opens R&D lab at Charlotte facility
View Description View Full Details
WATERFORD, N.Y.—Momentive Performance Materials Inc. opened a 20,000-sq.-ft. research and development laboratory in Charlotte, N.C., to test and develop advanced compounds used in tire...
View Full Details »
WATERFORD, N.Y.—Momentive Performance Materials opened a research and development laboratory at its Charlotte, N.C., facility. The lab will serve as a global hub for development of silane materials that can help tire manufacturers produce tires with lower rolling resistance, better wet traction and advanced performance. WATERFORD, N.Y.—Momentive Performance Materials opened a research and development laboratory at its Charlotte, N.C., facility. The lab will serve as a global hub for development of silane materials that can help tire manufacturers produce tires with lower rolling resistance, better wet traction and advanced performance. $ WATERFORD, N.Y.—Momentive Performance Materials opened a research and development laboratory at its Charlotte, N.C., facility. The lab will serve as a global hub for development of silane materials that can help tire manufacturers produce tires with lower rolling resistance, better wet traction and advanced performance.
Digital Edition
Digital Edition
Published on January 1, 2005

Improving Processability with low Mooney HNBR for Automotive Applications

Have a question? Need some help?
Click here to view the FAQ

Tags

Date Published January 1, 2005
Category

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. 
ERROR: Object template cce_CCI_SITE is missing!