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U.S. Department of Commerce proposes stiff tariffs on steel imports
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WASHINGTON—The U.S. Department of Commerce is recommending stiff tariffs on steel imports into the U.S., encouraging representatives of the domestic steel industry but alarming U.S. tire...
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WASHINGTON—The U.S. Department of Commerce is recommending stiff tariffs on steel imports into the U.S., encouraging representatives of the domestic steel industry but alarming U.S. tire manufacturers dependent on imported tire-grade steel cord. WASHINGTON—The U.S. Department of Commerce is recommending stiff tariffs on steel imports into the U.S., encouraging representatives of the domestic steel industry but alarming U.S. tire manufacturers dependent on imported tire-grade steel cord. $WASHINGTON—The U.S. Department of Commerce is recommending stiff tariffs on steel imports into the U.S., encouraging representatives of the domestic steel industry but alarming U.S. tire manufacturers dependent on imported tire-grade steel cord.
GM shows progress in efforts to promote sustainable rubber
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WASHINGTON—In May 2017, General Motors Co. unveiled a program to promote environmentally sound, sustainable rubber production. Representatives of the world's largest tire...
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WASHINGTON—In May 2017, General Motors unveiled a program to promote environmentally sound, sustainable rubber production. WASHINGTON—In May 2017, General Motors unveiled a program to promote environmentally sound, sustainable rubber production. $WASHINGTON—In May 2017, General Motors unveiled a program to promote environmentally sound, sustainable rubber production.
Acquisition of A. Schulman doubles LyondellBasell's annual sales, capacities
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FAIRLAWN, Ohio—Joseph Gingo grew up knowing all about A. Schulman Inc. His father worked at the company's first plant. He remembers meeting founder Alex Schulman at company picnics when he...
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FAIRLAWN, Ohio—LyondellBasell Industries is acquiring A. Schulman in a $2.25 billion deal that adds Schulman's $2.5 billion in annual sales, 54 manufacturing sites and 2.4 billion pounds of production capacity to LBI's own polypropylene compounding unit. FAIRLAWN, Ohio—LyondellBasell Industries is acquiring A. Schulman in a $2.25 billion deal that adds Schulman's $2.5 billion in annual sales, 54 manufacturing sites and 2.4 billion pounds of production capacity to LBI's own polypropylene compounding unit. $FAIRLAWN, Ohio—LyondellBasell Industries is acquiring A. Schulman in a $2.25 billion deal that adds Schulman's $2.5 billion in annual sales, 54 manufacturing sites and 2.4 billion pounds of production capacity to LBI's own polypropylene compounding unit.
U.S. demand for high-performance tires continues to rise
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AKRON—Demand for high-performance tires in the U.S. increased in 2017 for the eighth straight year and now accounts for nearly 56 percent of original equipment and 45 percent of replacement...
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AKRON—Demand for high-performance tires in the U.S. increased in 2017 for the eighth straight year, according to latest U.S. Tire Manufacturers Association data. AKRON—Demand for high-performance tires in the U.S. increased in 2017 for the eighth straight year, according to latest U.S. Tire Manufacturers Association data. $AKRON—Demand for high-performance tires in the U.S. increased in 2017 for the eighth straight year, according to latest U.S. Tire Manufacturers Association data.
LyondellBasell buying A. Schulman for $2.25 billion in big materials shakeup
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HOUSTON—In a major global plastics materials deal, LyondellBasell Industries is acquiring A. Schulman Inc. for $2.25 billion. LBI—based in Houston and London—is one of the...
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HOUSTON—In a major global plastics materials deal, LyondellBasell Industries is acquiring A. Schulman for $2.25 billion. HOUSTON—In a major global plastics materials deal, LyondellBasell Industries is acquiring A. Schulman for $2.25 billion. $HOUSTON—In a major global plastics materials deal, LyondellBasell Industries is acquiring A. Schulman for $2.25 billion.
NHS deal would help Vystar's growth
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WORCESTER, Mass.—Vystar Corp.'s letter of intent to acquire NHS Holdings L.L.C. is the first step in Vystar's plans for growth, according to Steve Rotman, founder of NHS and new CEO of...
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WORCESTER, Mass.—Vystar's letter of intent to acquire NHS Holdings is the first step in Vystar's plans for growth, according to Steve Rotman, founder of NHS and new CEO of Vystar. WORCESTER, Mass.—Vystar's letter of intent to acquire NHS Holdings is the first step in Vystar's plans for growth, according to Steve Rotman, founder of NHS and new CEO of Vystar. $WORCESTER, Mass.—Vystar's letter of intent to acquire NHS Holdings is the first step in Vystar's plans for growth, according to Steve Rotman, founder of NHS and new CEO of Vystar.
Wacky World of Rubber: 'Why didn't I think of that?'
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I'm dedicating this installment of Wacky World of Rubber to all of those who have said, "Why didn't I think of that?" This is the success story of a family-owned company out of Saint George, Utah,...
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I'm dedicating this installment of Wacky World of Rubber to all of those who have said, "Why didn't I think of that?" This is the success story of a family-owned company named Squatty Potty, which has gained a cult-like following for its signature product. I'm dedicating this installment of Wacky World of Rubber to all of those who have said, "Why didn't I think of that?" This is the success story of a family-owned company named Squatty Potty, which has gained a cult-like following for its signature product. $I'm dedicating this installment of Wacky World of Rubber to all of those who have said, "Why didn't I think of that?" This is the success story of a family-owned company named Squatty Potty, which has gained a cult-like following for its signature product.
RD Abbott printer helps cut the prototyping process
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CERRITOS, Calif.—R.D. Abbott Co. Inc. is looking to help spread the word in North America about the liquid silicone rubber 3D printing technology developed by German RepRap GmbH and Dow...
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CERRITOS, Calif.—R.D. Abbott is looking to help spread the word in North America about the liquid silicone rubber 3D printing technology developed by RepRap and Dow Performance Silicones. CERRITOS, Calif.—R.D. Abbott is looking to help spread the word in North America about the liquid silicone rubber 3D printing technology developed by RepRap and Dow Performance Silicones. $CERRITOS, Calif.—R.D. Abbott is looking to help spread the word in North America about the liquid silicone rubber 3D printing technology developed by RepRap and Dow Performance Silicones.
Bridgestone, Versalis form strategic partnership
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NASHVILLE, Tenn.—Bridgestone Americas Inc. is forming a strategic partnership with Italian polymer and elastomer giant Versalis S.p.A. to  to develop and use a comprehensive technology...
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NASHVILLE, Tenn.—Bridgestone Americas is forming a strategic partnership with Italian polymer and elastomer giant Versalis to develop and use a comprehensive technology package to commercialize guayule in the agricultural, sustainable rubber and renewable chemical sectors. NASHVILLE, Tenn.—Bridgestone Americas is forming a strategic partnership with Italian polymer and elastomer giant Versalis to develop and use a comprehensive technology package to commercialize guayule in the agricultural, sustainable rubber and renewable chemical sectors. $NASHVILLE, Tenn.—Bridgestone Americas is forming a strategic partnership with Italian polymer and elastomer giant Versalis to develop and use a comprehensive technology package to commercialize guayule in the agricultural, sustainable rubber and renewable chemical sectors.
Export curbs fail to lift natural rubber prices
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LONDON—Moves to curb natural rubber exports by the main producing countries seem to have had little positive impact on prices for the commodity, so far at least.Indeed, prices showed signs...
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LONDON—Moves to curb natural rubber exports by the main producing countries seem to have had little positive impact on prices for the commodity, so far at least. LONDON—Moves to curb natural rubber exports by the main producing countries seem to have had little positive impact on prices for the commodity, so far at least. $LONDON—Moves to curb natural rubber exports by the main producing countries seem to have had little positive impact on prices for the commodity, so far at least.
Digital Edition
Digital Edition
Published on January 1, 2006

Development of a Real-Time Cure Optimization Process Control System and its Use with Low Temperature Cure Elastomers

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Date Published January 1, 2006
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This Report has been authored by:R. Shepherd at Materials Engineering Research Laboratory Ltd. #with# R.P. Campion at Materials Engineering Research Laboratory Ltd.

During moulding, when temperature is applied to uncured rubber compound, it initially softens with increasing temperature, after which the formation of vulcanisation crosslinks stiffens the rubber until it reaches its modulus maximum. If the rubber experiences more heat than is required to cure the part, energy is wasted. Also, the part is left in an over-cured state, often with compromised mechanical properties which may result in rejection or customer returns. The frequency of over-curing can be minimised by ensuring that “exactly” the correct curing schedule is always used. This provides optimised components with the added benefit of reduction in energy costs. To achieve this, a concept is employed of controlling/monitoring the amount of heat applied to the component by identifying units of cure based on actual rubber temperature rather than input temperature. In this work, this approach is described along with its application to processes using processable low temperature cure elastomers (PLTCs), which further improve energy efficiency of the process. PLTC materials have been developed capable of curing at 70C and producing equivalent and in some cases enhanced mechanical properties when compared to the “conventional” compound it replaced; an example is discussed.

 
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