Carbon black for blending in rubber
AssigneeTokai Carbon Co., Ltd.
InventorsMasahiko Mito, Kiyonari Nakai
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Abstract
A carbon black for blending in rubber is disclosed, which has a BET specific surface area (N.sub.2 SA) within a range of 65 to 84 m.sup.2 /g, an a value to be obtained according to the following calculation formula, of at least 270 and a ratio of the BET specific surface area (N.sub.2 SA) to the iodine adsorption number (IA), N.sub.2 SA/AI, within a range of 1.10 to 1.35: a=(24M4DBP).sup.2 .times.(Blackness/IA ).sup.2 .times.(Dst).sup.2 .times.10.sup.-6
Claims1
A carbon black for blending in rubber which has a BET specific surface area (N.sub.2 SA) within a range of 65 to 84 m.sup.2 /g, an a value to be obtained according to the following calculation formula, of at least 270 and a ratio of the BET specific surface area (N.sub.2 SA) to the iodine adsorption number (IA), N.sub.2 SA/AI, within a range of 1.10 to 1.35:
- a=(24M4DBP).sup.2 .times.(Blackness/IA).sup.2 .times.(Dst).sup.2 .times.10.sup.-6
Dependencies are inferred from the claim text.