Low hysteresis carbon black
AssigneeSid Richardson Carbon, Ltd.
InventorsWesley Wampler, Leszek Nikiel, Kalyan K. Das
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Abstract
A carbon black product comprises aggregates of carbon black characterized as having an OAN of between 139 and 149 ml/100 g, a COAN of between 95 and 105 ml/100 g, an iodine adsorption number I2 No of between 52 and 62 mg/g, and a multipoint nitrogen adsorption N2SA of between 54 and 64 m2/g. Tires manufactured with the carbon black product exhibit low rolling resistance and low heat build-up under service conditions.
Claims20
A carbon black product comprising aggregates of carbon black characterized as having an OAN of between 139 and 149 ml/100 g, a COAN of between 95 and 105 ml/100 g, an iodine adsorption number I2 No of between 52 and 62 mg/g, and a multipoint nitrogen adsorption N2SA of between 54 and 64 m2/g.
A polymer formulation, comprising:
- a quantity of polymer;
- and
- a quantity of carbon black product comprising aggregates of carbon black characterized as having an OAN of between 139 and 149 ml/100 g, a COAN of between 95 and 105 ml/100 g, an iodine adsorption number I2 No of between 52 and 62 mg/g, and a multipoint nitrogen adsorption N2SA of between 54 and 64 m2/g.
A method for determining polymer-filler interaction of a carbon black, the method comprising the steps of:
- determining a bound rubber content of a plurality of polymer formulations including the carbon black at different loadings;
- charting a scatter plot of the bound rubber content of the plurality of polymer formulations relative to one of total carbon black surface and total carbon black mass;
- placing a best fit line on the scatter plot;
- and
- calculating a slope of the best fit line, wherein a numerical value of the slope is a polymer interaction coefficient (PIC) indicative of the polymer-filler interaction.
Dependencies are inferred from the claim text.