Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SOFT FURNACE CARBON BLACK AND RUBBER COMPOSITION COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2011126953
Kind Code:
A
Abstract:

To provide furnace carbon black which can further lower compression set without deteriorating vulcanized rubber properties while maintaining the characteristics of thermal-type furnace black and a rubber composition obtained by compounding the same with a rubber component.

The furnace carbon black which has an iodine adsorption (IA) of 10-35 g/kg, a dibutyl phthalate oil absorption (DBPA) of not more than 30 ml/100 g, and a toluene coloring permeability of not less than 45% satisfies that the value of an aggregate size distribution index (X) of a ratio of the weight average particle diameter (Aw) to the number average particle diameter (An) of the aggregate size obtained by the centrifugal sedimentation method is present in the range of 2.0-3.0; the ratio (Y) of the nitrogen adsorption specific surface area (N2SA) to the iodine adsorption (IA) is 0.9-1.2; and the ratio (Z) of the nitrogen adsorption specific surface area (N2SA) to the CTAB adsorption specific surface area (CTAB) is 0.9-1.1.


Inventors:
Takahashi, Yasusuke
Application Number:
JP2009000284873
Publication Date:
June 30, 2011
Filing Date:
December 16, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ASAHI CARBON KK
International Classes:
C09C1/50; C08K3/04; C08L7/00; C08L9/00; C09D17/00