| US 7,485,280 B2 | ||
| Carbon black | ||
| Akihiro Matsuki, Yokkaichi (Japan); Shinichi Kanamaru, Sakaide (Japan); Yutaka Fukuyama, Tokyo (Japan); Nobutake Mise, Tokyo (Japan); and Eihachi Takamura, Yokkaichi (Japan) | ||
| Assigned to Mitsubishi Chemical Corporation, Tokyo (Japan) | ||
| Filed on Feb. 03, 2006, as Appl. No. 11/346,437. | ||
| Application 11/346437 is a continuation of application No. PCT/JP2004/011510, filed on Aug. 04, 2004. | ||
| Claims priority of application No. 2003-286905 (JP), filed on Aug. 05, 2003; and application No. 2004-206165 (JP), filed on Jul. 13, 2004. | ||
| Prior Publication US 2006/0186383 A1, Aug. 24, 2006 | ||
| Int. Cl. C09C 1/48 (2006.01) | ||
| U.S. Cl. 423—449.1 [423/450] | 8 Claims |
| 1. Carbon black, which has:
(a) a 24M4DBP absorption of at least 131 cm3/100 g;
(b) a (1,500° C.×30 min) dehydrogenation amount of at most 1.2 mg/g;
(c) a crystallite size Lc of from 10 to 17 Å;
(d) a nitrogen adsorption specific surface area of from 150 to 300 m2/g;
(e) a ratio of the Stokes mode diameter, Dmod, in nm, to the 24M4DBP absorption, in cm3/100 g, of from 0.6 to 0.9 nm·100 g/cm3; and
(f) an average particle diameter as measured by a transmission electron microscope of from 14 to 24 nm.
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