Carbonaceous material with broad aggregate size distribution and improved dispersibility
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United States of America Patent
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Jul 3, 2007
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app pub date -
May 13, 2004
filing date -
May 13, 2004
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Abstract
A carbon black with a .DELTA.D50/M greater than about 0.9 was produced. The carbon black has an aggregate heterogeneity index (HI) via QTM of greater than about 2.3. The carbon black has a .DELTA.D50 via DCP of greater than about 0.07 .mu.m. The QTM-HI of the present carbon black is unique for N100-200 series carbon blacks, as is the .DELTA.D50. The carbon black is a N200 carbon black with an oil absorption number (OAN) less than about 135 ml/100 g and a HI of greater than about 2.3. The carbon black is also a N200 carbon black with an oil absorption number (OAN) less than about 135 ml/100 g and a .DELTA.D50 of greater than about 0.07 .mu.m. The present invention also relates to a polymeric composition and to tires comprising a carbon black of the present invention.
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