Carbon black for tire tread

Details Carbon black for tire tread Carbon black for tire tread

1989-04-25

1990-11-27

Straub, Gary P.

Metal deforming

423450, C01B 3100, C01B 3102, C09C 148

Patent

active

049734636

ABSTRACT:
The present invention discloses carbon black for a tire tread having a cetyltrimethyl ammonium bromide specific surface area (CTAB) of 120 to 160 m.sup.2 /g, a dibutyl phthalate absorption number of compressed sample (24M4) of 95 to 135 ml/100 g, and a tinting strength (Tint) of 100 to 150% and exhibits an M value defined by the following formula (1) and satisfying the following formula (2): ##EQU1## wherein IA is the iodine adsorption number (mg/g), N.sub.2 SA is the nitrogen adsorption specific surface area (m.sup.2 /g), Dst is the equivalent Stokes diameter (nm) at the maximum absorbance of the distribution curve of aggregates determined by the centrifugal classification method, and .DELTA.Dst is the difference (nm) between two equivalent Stokes diameters at two points on the distribution curve of aggregates at which the absorbance is 50% of the maximum absorbance.

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patent: 3973983 (1976-08-01), Jordan
patent: 4035336 (1977-07-01), Jordan
patent: 4250145 (1981-02-01), Pobst et al.
patent: 4289743 (1981-09-01), Ruble
patent: 4316881 (1982-02-01), Pobst et al.
patent: 4500672 (1985-02-01), Suzuki et al.
patent: 4784695 (1988-11-01), Mito et al.

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