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Driven by emotion: Designing the auto interiors of the future
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DETROIT—How do you want to feel? That was the grand rhetorical question posed by Gaia Crippa, a London-based materials specialist and colors, materials and finishes designer at Chris...
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How do you want to feel when you're inside the vehicle of the future—it'll be autonomous, by the way—and what role do materials play in evoking positive emotions in passengers? How do you want to feel when you're inside the vehicle of the future—it'll be autonomous, by the way—and what role do materials play in evoking positive emotions in passengers? $How do you want to feel when you're inside the vehicle of the future—it'll be autonomous, by the way—and what role do materials play in evoking positive emotions in passengers?
Executive of the year: Rick Valeriote's son, employees proud to work for him
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GUELPH, Ontario—Geoff Valeriote hears from skeptics all the time who can't believe he works for his father. But he says these people don't know what it's like to work for his dad, Rick...
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GUELPH, Ontario—Geoff Valeriote hears from skeptics all the time who can't believe he works for his father. But he says these people don't know what it's like to work for his dad, Rick Valeriote. GUELPH, Ontario—Geoff Valeriote hears from skeptics all the time who can't believe he works for his father. But he says these people don't know what it's like to work for his dad, Rick Valeriote. $GUELPH, Ontario—Geoff Valeriote hears from skeptics all the time who can't believe he works for his father. But he says these people don't know what it's like to work for his dad, Rick Valeriote.
Executive of the year: Rick Valeriote leads by example
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GUELPH, Ontario—Rick Valeriote has been part of the rubber industry for more than four decades. The journey has taken him from working for his dad, to being a CEO before he was 30. From...
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GUELPH, Ontario—Rick Valeriote has been part of the rubber industry for more than four decades. GUELPH, Ontario—Rick Valeriote has been part of the rubber industry for more than four decades. $GUELPH, Ontario—Rick Valeriote has been part of the rubber industry for more than four decades.
Cooper Tire to lay off 80 employees
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FINDLAY, Ohio—Cooper Tire & Rubber Co. has confirmed it will lay off 80 people in North America. The firm said in an emailed statement that it has reorganized certain departments,...
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FINDLAY, Ohio—Cooper Tire will eliminate 80 salaried positions in North America. FINDLAY, Ohio—Cooper Tire will eliminate 80 salaried positions in North America. $FINDLAY, Ohio—Cooper Tire will eliminate 80 salaried positions in North America.
Editorial: Elastomer Valley group advocates for Quebec firms
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Much has been in the news lately about the negotiations to re-work the North American Free Trade Agreement. But a lot of those discussions have focused on the U.S. and Mexico, particularly because ...
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There is one association that has quietly championed the rubber industry in Quebec for years. And because of its dedication, the Elastomer Valley group has helped keep rubber manufacturing thriving in Canada. There is one association that has quietly championed the rubber industry in Quebec for years. And because of its dedication, the Elastomer Valley group has helped keep rubber manufacturing thriving in Canada. $There is one association that has quietly championed the rubber industry in Quebec for years. And because of its dedication, the Elastomer Valley group has helped keep rubber manufacturing thriving in Canada.
Rol-Tec investment brings new machine
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ASHWAUBENON, Wis.—Rol-Tec Inc. has invested in a second precision laser engraving machine to meet growing demand for in-the-round flexo printing sleeves and cylinders.This second Kronos...
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ASHWAUBENON, Wis.—Rol-Tec has invested in a second precision laser engraving machine to meet growing demand for in-the-round flexo printing sleeves and cylinders. ASHWAUBENON, Wis.—Rol-Tec has invested in a second precision laser engraving machine to meet growing demand for in-the-round flexo printing sleeves and cylinders. $ASHWAUBENON, Wis.—Rol-Tec has invested in a second precision laser engraving machine to meet growing demand for in-the-round flexo printing sleeves and cylinders.
Wacky World of Rubber: Something's popping
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Visiting Grandma, there were certain things you could count on. You knew, for instance, that there would be cookies in the cookie jar, and that she was going to challenge you to a game of rummy....
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Visiting Grandma, there were certain things you could count on. You knew, for instance, that she would insist on making some popcorn in the hot-air popper. Visiting Grandma, there were certain things you could count on. You knew, for instance, that she would insist on making some popcorn in the hot-air popper. $Visiting Grandma, there were certain things you could count on. You knew, for instance, that she would insist on making some popcorn in the hot-air popper.
Commerce levies stiff antidumping duties in steel wire rod case
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WASHINGTON—The U.S. Department of Commerce has made affirmative final antidumping determinations against imports of carbon and alloy steel wire rod from Belarus, the Russian Federation and...
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WASHINGTON—The U.S. Department of Commerce has made affirmative final antidumping determinations against imports of carbon and alloy steel wire rod from Belarus, the Russian Federation and the United Arab Emirates. WASHINGTON—The U.S. Department of Commerce has made affirmative final antidumping determinations against imports of carbon and alloy steel wire rod from Belarus, the Russian Federation and the United Arab Emirates. $WASHINGTON—The U.S. Department of Commerce has made affirmative final antidumping determinations against imports of carbon and alloy steel wire rod from Belarus, the Russian Federation and the United Arab Emirates.
Helukabel breaks ground on U.S. headquarters
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ELGIN, Ill.—Helukabel GmbH has invested more than $38 million to increase its global presence in 2017.The wire and cable firm's U.S. subsidiary, Helukabel USA, broke ground on a new...
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ELGIN, Ill.—Helukabel has invested more than $38 million to increase its global presence in 2017. ELGIN, Ill.—Helukabel has invested more than $38 million to increase its global presence in 2017. $ELGIN, Ill.—Helukabel has invested more than $38 million to increase its global presence in 2017.
Rubber producers to cut exports
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CHIANG MAI, Thailand—Major natural rubber producers and members of the International Tripartitie Rubber Council, Thailand, Indonesia and Malaysia, have agreed to cut exports in a bid to...
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CHIANG MAI, Thailand—Major natural rubber producers and members of the International Tripartitie Rubber Council, Thailand, Indonesia and Malaysia, have agreed to cut exports in a bid to address low NR prices. CHIANG MAI, Thailand—Major natural rubber producers and members of the International Tripartitie Rubber Council, Thailand, Indonesia and Malaysia, have agreed to cut exports in a bid to address low NR prices. $CHIANG MAI, Thailand—Major natural rubber producers and members of the International Tripartitie Rubber Council, Thailand, Indonesia and Malaysia, have agreed to cut exports in a bid to address low NR prices.
Digital Edition
Digital Edition
Published on January 1, 2007

Quantitative Determination of Antioxidants in Latex and Latex Compounds

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Date Published January 1, 2007
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This Report has been authored by:Jean-Luc Madelaine at Eliokem SAS

Phenolic antioxidants are commonly added to synthetic latex and latex compounds as well as to natural rubber compounds in order to protect the polymer and the finished articles against oxidation during storage, transport and service life. Typical addition levels are 0.3 to 0.5 parts by weight (pbw) in synthetic latex and 0.5 to 1.5 pbw in natural rubber latex compounds used for thin gloves or elastic thread manufacturing. Quantitative determination of the antioxidant into the latex, the latex compound or the finished product may be necessary for various purposes such as product and application development, troubleshooting studies (typically claims investigations, quality issues in production), and customer technical support. Most often such analyses are performed in order to check that the polymer contains the expected concentration of the additive or to assess how much of the additive is remaining in the polymer after storage or aging. This paper will review briefly the most commonly used technique for antioxidant quantification based on extraction followed by a chromatographic analysis and its limitations in the case of multi-component antioxidants or antioxidants blends. Another approach based on the use of differential scanning calorimetry (DSC) will then be discussed and illustrated with some results in synthetic latex. 
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