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Title:
CARBON BLACK FOR TIRE TREAD COMPOUND
Document Type and Number:
Japanese Patent JP3782200
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide carbon black which can give a rubber compound being satisfactory in the incompatible properties i.e., high abrasion resistance and low-level heat buildup and improved in tear properties (elongation properties) and processability.
SOLUTION: This carbon black is one having basic properties: the nitrogen adsorption specific surface area (N2SA) is above 140 m2/g to below 200 m2/g and a DBP oil absorption of above 110 ml/10 g to below 160 ml/100 g, wherein the rate of N2SA to the iodine value (IA) (N2SA/IA) has a value of 0.85-0.98 and the aggregate properties as measured by centrifugal analysis satisfy: (1) the most frequent mode (Dst) of a distribution curve of Stokes equivalent diameters is 70-90 nm, and (2) the ratio of the Dst to the half-width value (ΔD50) of a distribution curve (ΔD50/Dst) of above 0.81 to below 1.30.


Inventors:
Suzuki Osamu
Junichi Takami
Application Number:
JP11183997A
Publication Date:
June 07, 2006
Filing Date:
April 14, 1997
Export Citation:
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Assignee:
Asahi Carbon Co., Ltd.
International Classes:
B60C1/00; C08L21/00; C08K3/04; C09C1/48; (IPC1-7): C08L21/00; B60C1/00; C08K3/04; C09C1/48
Domestic Patent References:
JP6256577A
Attorney, Agent or Firm:
Eiji Tomomatsu
Toshikazu Kawashima