Naphthenic Acid Or Salt Thereof Patents (Class 508/538)
  • Patent number: 9090127
    Abstract: A composition includes a diene rubber and a metal soap of the formula: M being a metal with an oxidation state of +3 or +4, and each R being any independently selected organic moiety including hydrogen. In addition, a method of making a rubber composition includes combining a polar solvent, a base, and a carboxylic acid and mixing these to form a Solution A. A source of metal ions in solution is added to Solution A, whereby mixing forms Product A. The metal in the source of metal ions is selected from the group consisting of metals with an oxidation state of +3 or +4. The product is isolated from Solution A and then is combined with a diene rubber composition to form a useful article, such as the tread of a tire.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: July 28, 2015
    Assignee: Bridgestone Corporation
    Inventor: Xiaorong Wang
  • Publication number: 20140243248
    Abstract: A method for preventing degradation of physical and chemical properties, and for increasing lubricity, of a hydrocarbon and water emulsion, comprising adding to the emulsion an effective amount of at least one copper salt of a carboxylic acid for enabling at least one bacterium species from Pseudomonas genus to become dominant in the emulsion.
    Type: Application
    Filed: October 15, 2013
    Publication date: August 28, 2014
    Inventor: Saeed Mir Heidari
  • Publication number: 20090042752
    Abstract: A lubricant composition is disclosed. The lubricant composition is made up of (a) ashless dispersant; (b) metal-containing detergent; (c) a phosphorus-containing compound; (d) rust inhibitor; and (e) basestock, wherein the lubricant composition has a concentration of phosphorus less than or equal to 0.08 weight %.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Malcolm Waddoups, George C. L'Heureux
  • Publication number: 20080090741
    Abstract: The lubricant composition of the present disclosure comprises a major amount of a base oil and a minor amount of an additive composition comprising an overbased detergent and a low-base detergent, wherein the lubricant composition has a salt to metal ratio ranging from about 3.0 to about 8.0.
    Type: Application
    Filed: October 16, 2006
    Publication date: April 17, 2008
    Inventor: William Y. Lam
  • Patent number: 6828286
    Abstract: Lubricant compositions comprises a lubricant base oil and one or more compounds resulting the modification of a succinimide represented by formula (1) or (2) wherein R1 and R2 may be the same or different and are each independently a hydrocarbon group having 8 to 30 carbon atoms, R3 and R4 may be the same or different and are each independently a hydrocarbon group having 1 to 4 carbon atoms, R5 is hydrogen or a hydrocarbon group having 1 to 30 carbon atoms, n is an integer from 1 to 7. The lubricant compositions have a long-lasting anti-shudder property, an enhanced transmission capacity for a wet clutch, and an excellent shifting property.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: December 7, 2004
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Kenichi Komiya, Naozumi Arimoto, Noboru Ishida, Shinichi Shirahama, Eitaro Morita
  • Patent number: 6727207
    Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: April 27, 2004
    Assignee: NSK Ltd.
    Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
  • Publication number: 20020082175
    Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.
    Type: Application
    Filed: January 3, 2002
    Publication date: June 27, 2002
    Applicant: NSK LTD.
    Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
  • Publication number: 20010034306
    Abstract: The present invention is to provide a rolling bearing suitable for the use under a high temperature, high speed, high load and high vibration condition, having a good rust-preventive performance and the excellent flaking life without a hazard to a human body. A rolling bearing is described, comprising an inner race, an outer race and rolling elements, with a grease composition comprising, as the main components, a base oil, a thickener and at least one kind of a rust-preventive additive made from a naphthenate or a succinic acid derivative, packed in a bearing space formed by at least the inner race, the outer race and the rolling elements, said at least one kind of a rust-preventive additive is present in an amount of 0.1 to 10% by weight based on the total amount of the grease composition.
    Type: Application
    Filed: February 22, 2001
    Publication date: October 25, 2001
    Inventors: Kenichi Iso, Atsushi Yokouchi, Michiharu Naka
  • Patent number: 6130190
    Abstract: A lubricating composition comprising a liquid crystal and a surfactant is disclosed. The inventive composition increase the lubricity of lubricant oils, reduce the wear rate or metals being lubricated, and increase the load bearing properties of lubricants between various surfaces, for example, within an engine and in the rolling of metals.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: October 10, 2000
    Assignee: Pennzoil Products Company
    Inventors: Selda Gunsel, Frances E. Lockwood