Surface-treated carbon black and rubber composition containing same
Patent 5679728 Issued on October 21, 1997. Estimated Expiration Date: 
November 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCarbon blacks modified with organosilicon compounds, method of their production and their use in rubber mixtures Organosilicone-treated silica and a composition containing it Patent #: 5200440 InventorsAssigneeApplicationNo. 552060 filed on 11/02/1995US Classes:523/215, Product having elemental carbon423/449.2, Treating carbon black423/460, Treating carbon523/210, Product having a material encapsulated in or impregnated in a nonreactant material523/216, Product having a silicon atom524/492, Mixing inorganic silicon-containing material having color or numerical limitations other than amount, e.g., included herein are m.p., chemical composition, particle size, surface area, etc., or composition or product thereof, DNRM524/493, Inorganic silicon-containing material having specified dimensions524/495, Mixing with carbon, e.g., graphite, etc., having numerical limitations, other than amount, e.g., included herein are particle size, surface area, etc., or composition or product thereof, DNRM524/496Carbon particle having specified dimensionExaminersPrimary: Cain, Edward J.Attorney, Agent or FirmForeign Patent References
International ClassC08K 003/00Foreign Application Priority Data1994-11-11 JPAbstractA rubber composition containing a cross-linkable rubber component and a carbon black having silica adhered to the surface thereof and a silica surface-treated carbon black suitable for use in tire tread where the surface-treated carbon black has a nitrogen specific surface area (N2 SA) of 20 to 300 m2 /g, a ratio IAo /IAf of the adsorption amount of iodine (IAo) and the adsorption amount of iodine after treatment by hydrogen fluoride (IAf) of at least 0.30 but less than 1.0, and a ratio IAe /IAef of the adsorption amount of iodine after extraction from a rubber compound (IAe) and the value of the same after treatment by hydrogen fluoride (IAef) of at least 0.30 but less than 1.0.Field of SearchProduct having a material encapsulated in or impregnated in a nonreactant materialProduct having elemental carbon Product having a silicon atom Mixing inorganic silicon-containing material having color or numerical limitations other than amount, e.g., included herein are m.p., chemical composition, particle size, surface area, etc., or composition or product thereof, DNRM Inorganic silicon-containing material having specified dimensions Mixing with carbon, e.g., graphite, etc., having numerical limitations, other than amount, e.g., included herein are particle size, surface area, etc., or composition or product thereof, DNRM Carbon particle having specified dimension Treating carbon black Treating carbon |
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