US 7,482,401 B2
	Carbon black and rubber composition containing same
Tomoaki Sugiyama, Hiratsuka (Japan); Hiroshi Wakamatsu, Onomichi (Japan); and Sadayuki Fujita, Kakogawa (Japan)
Assigned to The Yokohama Rubber Co., Ltd., Tokyo (Japan)
Filed on Oct. 13, 2005, as Appl. No. 11/248,234.
Claims priority of application No. 2004-298650 (JP), filed on Oct. 13, 2004.
Prior Publication US 2006/0079625 A1, Apr. 13, 2006
Int. Cl. B60C 1/00 (2006.01)

U.S. Cl. 524—495  [524/496]

2 Claims

1. A rubber composition comprising 100 parts by weight of a diene-based rubber and 1 to 150 parts by weight of a non-modified carbon black produced from, as a starting material, a tall oil having an alkali metal ion concentration of 1000 ppm or less and a rosin content of 5 to 90% by weight.