Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1991-03-11
1992-03-31
Lewis, Michael
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
524496, C09C 148
Patent
active
051006375
ABSTRACT:
Carbon black for compounding into a tire tread rubber which has a nitrogen adsorption specific surface area (N.sub.2 SA) of 120 to 165 m.sup.2 /g and a dibutyl phthalate absorption of at least 120 ml/100 g which belong to the respective regions of hard grade of carbon black, and has such a value G defined by the following equation (1) as satisfying the following formula (2): ##EQU1## wherein [.DELTA.D.sub.st ] stands for a difference between two equivalent Stokes diameters at two points on the distribution curve of aggregates at which the absorbance is 50% of the maximum absorbance; [D.sub.st ] stands for an equivalent Stokes diameter (nm) at the maximum absorbance of the distribution curve of aggregates; [N.sub.2 SA] stands for a nitrogen adsorption specific surface area (m.sup.2 /g); [24M4] stands for a dibutyl phthalate adsorption number of compressed sample (ml/100 g); [IA] stands for an iodine adsorption number (mg/g); [DBP] stands for a dibutyl phthalate absorption (ml/100 g); [Tint] stands for a tinging strength (%); and [CTAB] stands for a cetyltrimethylammonium bromide specific surface area.
REFERENCES:
patent: 2632713 (1953-03-01), Krejci
patent: 2971822 (1961-02-01), Williams
patent: 3376111 (1968-04-01), Stegelman
patent: 3523812 (1970-08-01), Kraus
patent: 3615211 (1971-10-01), Lewis
patent: 3725103 (1973-04-01), Jordan et al.
patent: 3830774 (1974-08-01), Jordan et al.
patent: 3864305 (1975-02-01), Jordan et al.
patent: 3973983 (1976-08-01), Jordan et al.
patent: 3988478 (1976-10-01), Wiggins
patent: 4035336 (1977-07-01), Jordan et al.
patent: 4071496 (1978-01-01), Kraus
patent: 4154277 (1979-05-01), Sato et al.
patent: 4228143 (1980-10-01), Cheng et al.
patent: 4250145 (1981-02-01), Pobst et al.
patent: 4267160 (1981-05-01), Kraus et al.
patent: 4289743 (1981-09-01), Ruble
patent: 4316881 (1982-02-01), Pobst et al.
patent: 4360627 (1982-11-01), Jordan
patent: 4360627 (1982-11-01), Okado
patent: 4367208 (1983-01-01), Glasstetter et al.
patent: 4398582 (1983-08-01), Yuto
patent: 4438087 (1984-03-01), Casperson
patent: 4459273 (1984-07-01), Dolkemeyer et al.
patent: 4477621 (1984-10-01), Sato et al.
patent: 4478973 (1984-10-01), Misono et al.
patent: 4486398 (1984-12-01), Casperson
patent: 4500672 (1985-02-01), Suzuki et al.
patent: 4503027 (1985-03-01), Cheng
patent: 4540560 (1985-09-01), Henderson
patent: 4548980 (1985-10-01), Nagata et al.
patent: 4550135 (1985-10-01), Iwama
patent: 4569834 (1986-02-01), West et al.
patent: 4678830 (1987-07-01), Sato et al.
patent: 4703079 (1987-10-01), Ahmad et al.
patent: 4721740 (1988-01-01), Ida
patent: 4784695 (1988-11-01), Mito et al.
patent: 4786677 (1988-11-01), Nakai et al.
patent: 4786677 (1988-11-01), Nakai et al.
patent: 4808395 (1989-02-01), Yoshimura et al.
patent: 4820751 (1989-04-01), Takeshita et al.
patent: 4933107 (1990-06-01), Watanabe
W. M. Hess et al., "Specific Shape Characterization of Carbon Black Primary Units", Rubber Chemistry and Technology, 1973, pp. 204, 208, 227.
Jean-Baptiste Donnet and Andries Voet, "Carbon Black", Physics Chemistry and Elastomer Reinforcement, pp. 200-202, 1991.
ASTM: D2414-88, Standard Test Method for Carbon Black-n-Dibutyl Dibutyl Phthalate Absorption Number, pp. 435-438, 1983.
Hendrickson Stuart L.
Lewis Michael
Tokai Carbon Co., Ltd.
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