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Sumitomo's Richard Smallwood testifies against proposed auto parts tariffs
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WASHINGTON—Imposing tariffs on imported auto parts would harm rather than help the U.S. auto industry and American consumers, according to Richard Smallwood, CEO and president of Sumitomo...
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WASHINGTON—Imposing tariffs on imported auto parts would harm rather than help the U.S. auto industry and American consumers, according to Richard Smallwood, CEO and president of Sumitomo Rubber North America. WASHINGTON—Imposing tariffs on imported auto parts would harm rather than help the U.S. auto industry and American consumers, according to Richard Smallwood, CEO and president of Sumitomo Rubber North America. $WASHINGTON—Imposing tariffs on imported auto parts would harm rather than help the U.S. auto industry and American consumers, according to Richard Smallwood, CEO and president of Sumitomo Rubber North America.
USTMA ambassadors showcase industry in D.C.
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WASHINGTON—Anthony Jackson, a technical leader at the Goodyear plant in Fayetteville, N.C., was hard at work one day recently when he received a call to go to the manufacturing director's...
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WASHINGTON—Twelve tire industry production line and middle management workers were chosen from the member companies of the U.S. Tire Manufacturers Association to represent the industry in meetings in Washington. WASHINGTON—Twelve tire industry production line and middle management workers were chosen from the member companies of the U.S. Tire Manufacturers Association to represent the industry in meetings in Washington. $WASHINGTON—Twelve tire industry production line and middle management workers were chosen from the member companies of the U.S. Tire Manufacturers Association to represent the industry in meetings in Washington.
Auto industry to tell Commerce Department to ditch tariff proposal
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WASHINGTON—A wide spectrum of auto interests, armed with the latest impact studies, will warn at a Commerce Department hearing July 19 that raising auto tariffs would severely harm the...
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WASHINGTON—A wide spectrum of auto interests, armed with the latest impact studies, warned at a Commerce Department hearing July 19 that raising auto tariffs would severely harm the industry and consumers. WASHINGTON—A wide spectrum of auto interests, armed with the latest impact studies, warned at a Commerce Department hearing July 19 that raising auto tariffs would severely harm the industry and consumers. $WASHINGTON—A wide spectrum of auto interests, armed with the latest impact studies, warned at a Commerce Department hearing July 19 that raising auto tariffs would severely harm the industry and consumers.
No one injured at Emerald plant following blast, fire
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AKRON—Those living and working within a half-mile radius of Emerald Performance Materials' Akron plant were evacuated shortly after 1 p.m. July 18 in response to an explosion and subsequent...
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AKRON—Those living and working within a half-mile radius of Emerald Performance Materials' Akron plant were evacuated shortly after 1 p.m. July 18 in response to an explosion and subsequent blaze that filled the air with thick plumes of smoke. AKRON—Those living and working within a half-mile radius of Emerald Performance Materials' Akron plant were evacuated shortly after 1 p.m. July 18 in response to an explosion and subsequent blaze that filled the air with thick plumes of smoke. $AKRON—Those living and working within a half-mile radius of Emerald Performance Materials' Akron plant were evacuated shortly after 1 p.m. July 18 in response to an explosion and subsequent blaze that filled the air with thick plumes of smoke.
Bridgestone to invest $12 million in Illinois tire plant
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BLOOMINGTON, Ill.—Bridgestone Americas Inc. is investing $12 million to expand off-the-road tire production at its plant in Bloomington, adding multiple sizes and patterns for 29-, 33- and...
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BLOOMINGTON, Ill.—Bridgestone Americas is investing $12 million to expand off-the-road tire production at its plant in Bloomington, adding multiple sizes and patterns for 29-, 33- and 35-inch OTR tires. BLOOMINGTON, Ill.—Bridgestone Americas is investing $12 million to expand off-the-road tire production at its plant in Bloomington, adding multiple sizes and patterns for 29-, 33- and 35-inch OTR tires. $BLOOMINGTON, Ill.—Bridgestone Americas is investing $12 million to expand off-the-road tire production at its plant in Bloomington, adding multiple sizes and patterns for 29-, 33- and 35-inch OTR tires.
Conti to revamp as holding company; eyes IPO for powertrain business
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HANOVER, Germany—Continental A.G. is planning to reorganize by 2020 into a holding company with three business sectors—rubber, automotive and powertrain—with the powertrain...
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HANOVER, Germany—Continental is planning to reorganize by 2020 into a holding company with three business sectors—rubber, automotive and powertrain—with the powertrain business being set up as an independent, publicly held company. HANOVER, Germany—Continental is planning to reorganize by 2020 into a holding company with three business sectors—rubber, automotive and powertrain—with the powertrain business being set up as an independent, publicly held company. $HANOVER, Germany—Continental is planning to reorganize by 2020 into a holding company with three business sectors—rubber, automotive and powertrain—with the powertrain business being set up as an independent, publicly held company.
Jason adds to hose program's support team
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MARCO ISLAND, Fla.—Jason Industrial Inc. said it is having success thus far with the hydraulic hose program it introduced in mid-2017, especially because it has beefed up its technical...
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MARCO ISLAND, Fla.—Jason Industrial said it is having success thus far with the hydraulic hose program it introduced in mid-2017, especially because it has beefed up its technical support team. MARCO ISLAND, Fla.—Jason Industrial said it is having success thus far with the hydraulic hose program it introduced in mid-2017, especially because it has beefed up its technical support team. $MARCO ISLAND, Fla.—Jason Industrial said it is having success thus far with the hydraulic hose program it introduced in mid-2017, especially because it has beefed up its technical support team.
Self-driving bill critics oppose maneuver to clear Senate
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WASHINGTON—Safety and consumer advocates are urging senators to reject a parliamentary maneuver to secure passage for stalled legislation governing self-driving cars by attaching it to a...
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WASHINGTON—Safety and consumer advocates are urging senators to reject a parliamentary maneuver to secure passage for stalled legislation governing self-driving cars by attaching it to a must-pass reauthorization for the Federal Aviation Administration. WASHINGTON—Safety and consumer advocates are urging senators to reject a parliamentary maneuver to secure passage for stalled legislation governing self-driving cars by attaching it to a must-pass reauthorization for the Federal Aviation Administration. $WASHINGTON—Safety and consumer advocates are urging senators to reject a parliamentary maneuver to secure passage for stalled legislation governing self-driving cars by attaching it to a must-pass reauthorization for the Federal Aviation Administration.
SUVs, CUVs may be curtailing growth of OE V-, Z-rated tires
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AKRON—The share of the U.S. original equipment and replacement tire markets held by high-performance tires—defined as H-rated and higher—has risen for eight straight years,...
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AKRON—The share of the U.S. original equipment and replacement tire markets held by high-performance tires has risen for eight straight years, according to U.S. Tire Manufacturers Association data, but growth for two classifications seems to be stalled. AKRON—The share of the U.S. original equipment and replacement tire markets held by high-performance tires has risen for eight straight years, according to U.S. Tire Manufacturers Association data, but growth for two classifications seems to be stalled. $AKRON—The share of the U.S. original equipment and replacement tire markets held by high-performance tires has risen for eight straight years, according to U.S. Tire Manufacturers Association data, but growth for two classifications seems to be stalled.
HS continues growth in North America
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DETROIT—Hwaseung R&A Co. Ltd. has come a long way since it first established operations in North America.The firm said it's doubled its automotive revenue since 2013, thanks largely to...
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DETROIT—Hwaseung R&A has come a long way since it first established operations in North America. DETROIT—Hwaseung R&A has come a long way since it first established operations in North America. $DETROIT—Hwaseung R&A has come a long way since it first established operations in North America.
Digital Edition
Digital Edition
Published on January 1, 2002

Natural Rubber Biodegradation in Soil in Relation to the Waste Disposal of Used Latex Products

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Date Published January 1, 2002
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This Report has been authored by:A. Ikram at Rubber Research Institute of Malaysia #with# Amir Hashim at Rubber Research Institute of Malaysia

Biodegradation was studied by burying natural rubber (NR) latex gloves in tropical soils amended with nitrogen (N) and phosphorus (P), and in a composting environment created from dried grass clippings, cattle manure and soil. Manipulating soils to favor microbial growth enhanced biodegradation compared to natural attenuation processes in unamended soils. The mean specific degradation rate of NR glove pieces in a high soil neoprene and nitrile remained intact after 40 weeks, while vinyl showed small weight losses due to plasticizer and other additive losses. In a composting environment, biodegradation rates over a 24-week period were twice that compared to the fertilized treatment in soils, suggesting an efficient means of waste disposal. Leachates of accelerator residues from NR gloves undergoing 12-weeks burial in soil lysimeters were however not significant. Soil degradation of NR condoms were slower compared to gloves with 42% of their initial weights remaining after 48 weeks. In contrast, the manufactured polyurethane condoms were hardly biodegradable. The stimulating effect of nutrient application on indigenous soil microbes, the likely effects of accelerators or antioxidant, or of the interactions of modulus and thickness in affecting NR latex product degradation are discussed.

 
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