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Editorial: North America continues to be a land of opportunity
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While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms...
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While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share. While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share. $While the North American market for years has been considered a mature market for the tire business, that doesn't mean there isn't plenty of opportunity there—particularly for firms currently holding a small market share.
Auto industry's uncertain future to be focus of keynote talks
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AKRON—The automotive industry is changing, and doing so rather quickly. With the advent of autonomous vehicles and ride-sharing, consumer habits and expectations are shaping the future of...
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AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies. AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies. $AKRON—John McElroy and David Cole are set to deliver keynote presentatations at the Rubber in Automotive conference, being organized by Rubber & Plastics News and Freudenberg-NOK Sealing Technologies.
New Mountain Capital acquires Gelest
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MORRISVILLE, Pa.—Growth can be quick, but sometimes, it takes patience. That's one of the reasons that led Gelest Inc. President Barry Arkles to partner this year with New Mountain Capital, ...
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MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets. MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets. $ MORRISVILLE, Pa.—Growth takes patience. That's one of the reasons that led Gelest President Barry Arkles to partner with New Mountain Capital, a private equity firm that currently manages approximately $15 billion in assets.
RMA rebrands itself as U.S. Tire Manufacturers Association
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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....
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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
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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...
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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
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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 ...
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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
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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....
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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
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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...
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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
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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...
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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
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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...
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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.
Digital Edition
Digital Edition
Published on September 22, 2004

Component Interfacial Tearing Appearances

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Date Published September 22, 2004
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This Report has been authored by:Gary Bolden at Standards Testing Laboratories (STL)

The appearance of pattern marks, die lines and liner marks has been and continues to be an issue of contention in the realm of forensic tire analysis.  These conditions have been recognized for many years and there is no dispute whatsoever that they exist.  The differences in opinion center on the question of what these conditions mean in terms of a tire’s structural integrity. Do they reflect some anomaly or defect that occurs somewhere in the manufacturing process, or are they a reflection of some design deficiency that occasionally manifests itself after the tire is placed in service?  Allegations such as these are sometimes used as the basis for liability claims against the tire manufacturer.  On the other hand, could the appearance of these conditions be the result of some abnormal service conditions that contribute to the tire’s demise? 

The research that I will be discussing gives us factual information that we can use as a basis for answering these questions. 

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