Carbon black for low-hysteresis rubber compositions

Details Carbon black for low-hysteresis rubber compositions Carbon black for low-hysteresis rubber compositions

1978-12-29

1980-12-23

Lutter, Frank W.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

423457, C09C 148

Patent

active

042410223

ABSTRACT:
A carbon black with a tint residual below -6 in a rubber composition causes the hysteresis or heat buildup of such a rubber composition to be significantly lower than that of a rubber composition incorporating a carbon black with a higher tint residual, while the abrasion resistance of such rubber compositions incorporating these different blacks remains essentially unchanged. Tint residual is the difference between the measured tint and the tint calculated from the structure, nitrogen surface area, and CTAB surface area in accordance with a specific formula disclosed. Disclosed are carbon black reactor configurations capable of producing carbon black useful in compounding such a low-hysteresis rubber.

REFERENCES:
patent: 2419565 (1947-04-01), Krejci
patent: 2659662 (1953-11-01), Heller
patent: 2851337 (1958-09-01), Heller
patent: 2918353 (1959-12-01), Heller
patent: 2967762 (1961-01-01), Krejci
patent: 3079236 (1963-02-01), Heller et al.
patent: 3615210 (1971-10-01), Jordan et al.
patent: 3748100 (1973-07-01), Forseth
patent: 3877876 (1975-04-01), Cheng
patent: 3915653 (1975-10-01), Cheng

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