Patents by Inventor Marc Ribeaud

Marc Ribeaud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8404624
    Abstract: The invention relates to an additive composition, which comprises an additive mixture that essentially consists of a) At least one ammonium phosphate ester; b) At least one thiophosphoric acid ester, and c) At least one dithiophosphoric acid derivative; in combination with sulphur containing oil additives; and a process for the reduction of wear in combustion engines, such as spark ignition or Diesel motor engines.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: March 26, 2013
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Marc Ribeaud
  • Patent number: 8030259
    Abstract: The invention relates to a composition comprising a mixture of alkylated N-?-naphthyl-Nphenylamine (PANA) and alkylated diphenylamine (DPA), the product obtainable by alkylating PANA or a mixture of PANA and DPA with alkenes and the process for alkylating PANA or a mixture of PANA and DPA with alkenes. The compositions according to the present invention have an outstanding anti-oxidative action, which can be demonstrated by established test methods.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 4, 2011
    Assignee: Ciba Speciality Chemicals Corp.
    Inventors: Beat Michael Aebli, Samuel Evans, Marc Ribeaud, David Eliezer Chasan
  • Patent number: 7932218
    Abstract: Certain NH sterically hindered amine compounds of the formula where R is a straight or branched alkyl group of from 7 to 17 carbon atoms and where n is from 6 to 18 are suitable for use as stabilizers in lubricant compositions. The sterically hindered amines are non-aggressive towards fluoroelastomer O-rings or seals.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: April 26, 2011
    Assignee: Ciba Corporation
    Inventors: David E. Chasan, Patricia R. Wilson, Marc Ribeaud
  • Publication number: 20100173808
    Abstract: Disclosed is a lubricant composition comprising a) a lubricant, b) a triazole metal deactivator, c) a borate ester and optionally d) an amine phosphate. The lubricants, e.g. engine oils or functional fluids exhibit low corrosion of lead, copper, iron and zinc. The metal deactivators are 1,2,4-triazoles, for example 1-(di-isooctylaminomethyl)-1,2,4-triazole or 1-(di-(2-ethylhexyl)aminomethyl)-1,2,4-triazole, or are benzotriazoles, for example 1-(2-methoxyprop-2-yl)tolyltriazole, 1-(1-cyclohexyloxypropyl)tolyltriazole, 1-(1-cyclohexyloxyheptyl)tolyltriazole or 1-(1-cyclohexyloxybutyl)tolyltriazole or 1-[bis(2-ethylhexyl)aminomethyl-4-methylbenzotriazole. The borate esters are for example triethyl borate, tripropyl borate, triisopropyle borate, tributyl borate, tripentyl borate, trihexyl borate, tricyclohexyl borate, trioctyl borate, triisooctyl borate, tridecyl borate, tri(C8C10) borate, tri (C12-C15) borate or oleyl borate.
    Type: Application
    Filed: March 15, 2010
    Publication date: July 8, 2010
    Inventors: David E. Chasan, Marc Ribeaud
  • Publication number: 20080312115
    Abstract: The invention relates to an additive composition, which comprises an additive mixture that essentially consists of a) At least one ammonium phosphate ester; b) At least one thiophosphoric acid ester, and c) At least one dithiophosphoric acid derivative; in combination with sulphur containing oil additives; and a process for the reduction of wear in combustion engines, such as spark ignition or Diesel motor engines.
    Type: Application
    Filed: March 13, 2006
    Publication date: December 18, 2008
    Inventor: Marc Ribeaud
  • Publication number: 20080274925
    Abstract: The invention relates to a composition comprising a mixture of alkylated N-?-naphthyl-N-phenylamine (PANA) and alkylated diphenylamine (DPA), the product obtainable by alkylating PANA or a mixture of PANA and DPA with alkenes and the process for alkylating PANA or a mixture of PANA and DPA with alkenes. The compositions according to the present invention have an outstanding anti-oxidative action, which can be demonstrated by established test methods.
    Type: Application
    Filed: March 23, 2005
    Publication date: November 6, 2008
    Inventors: Beat Michael Aebli, Samuel Evans, Marc Ribeaud, David Eliezer Chasan
  • Publication number: 20080200357
    Abstract: Disclosed is a lubrican composition comprising a) a lubricant, b) a triazole metal deactivator, c) a borate ester and optionally d) an amine phosphate. The lubricants, e.g. engine oils or functional fluids exhibit low corrosion of lead, copper, iron and zinc. The metal deactivators are 1,2,4-triazoles, for example 1-(di-isooctylaminomethyl)-1,2,4-triazole or 1-(di-(2-ethylhexyl)aminomethyl)-1,2,4-triazole, or are benzotriazoles, for example 1-(2-methoxyprop-2-yl)tolyltriazole, 1-(1-cyclohexyloxypropyl)tolyltriazole, 1-(1-cyclohexyloxyheptyl)tolyltriazole or 1-(1-cyclohexyloxybutyl)tolyltriazole or 1-[bis(2-ethylhexyl)aminomethyl-4-methylbenzotriazole. The borate esters are for example triethyl borate, tripropyl borate, triisopropyle borate, tributyl borate, tripentyl borate, trihexyl borate, tricyclohexyl borate, trioctyl borate, triisooctyl borate, tridecyl borate, tri(C8C10) borate, tri (C12-C15) borate or oleyl borate.
    Type: Application
    Filed: February 4, 2008
    Publication date: August 21, 2008
    Inventors: David E. Chasan, Marc Ribeaud
  • Publication number: 20080051306
    Abstract: Certain NH sterically hindered amine compounds of the formula where R is a straight or branched alkyl group of from 7 to 17 carbon atoms and where n is from 6 to 18 are suitable for use as stabilizers in lubricant compositions. The sterically hindered amines are non-aggressive towards fluoroelastomer O-rings or seals.
    Type: Application
    Filed: July 27, 2007
    Publication date: February 28, 2008
    Inventors: David Chasan, Patricia Wilson, Marc Ribeaud
  • Publication number: 20040242437
    Abstract: The invention relates to an engine oil composition is disclosed that meets FZG CEC IT-84/FVA 2434(A10/16.6R/90) of transportation gear oils, wherein FLS=10, which composition comprises a) An engine oil, b) A &bgr;-dithiophosphorylated Propionic Acids; and c) Other customary oil additives, Wherein component b) is about 2.0 to about 8.0% by weight, based on the weight of component a) plus component c).
    Type: Application
    Filed: June 25, 2004
    Publication date: December 2, 2004
    Inventors: Jose Reyes-Gavlian, Alfred Dratva, Marc Ribeaud, Peter Rohrbach
  • Patent number: 6750184
    Abstract: The present invention relates to improved lubricant compositions highly resistant to oxidative degradation comprising selected 5-tert.-butyl-4hydroxy-3-methylphenyl substituted fatty acid esters, diphenylamines and zinc dithiophosphates. The compositions as defined above are characterized by superior antioxidative properties. This can be demonstrated in various standard tests such as Deposit and Oxidation Panel Test (DOPT) and Pressurized Differential Scanning Calorimetry (PDSC).
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: June 15, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Marc Ribeaud, Paul Dubs, Serge Laemlin
  • Patent number: 6531429
    Abstract: The invention relates to improved compositions comprising thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters and oil additives from the group of the polyol partial esters, amines and epoxides, and also to the use of those lubricant compositions in improving the performance properties of lubricants, such as greases, metal-working fluids, gear fluids or hydraulic fluids. Thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters are present in the compositions preferably in a concentration of less than 400 ppm.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: March 11, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Fletschinger, Peter Rohrbach, Peter Collen Hamblin, Dudley Clark, Marc Ribeaud
  • Patent number: 6448208
    Abstract: A description is given of products obtainable by reacting components a), b), c) and, if desired, d), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II, component c) is a component of the formula IIIa and/or of the formula IIIb or a mixture of compounds of the formula IIIa and/or IIIb, and component d) is a compound of the formula IV or a mixture of compounds of the formula IV, in which the general symbols are as defined therein, where the compound of the formula I is, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,2-propanediol, diethylene glycol, triethylene glycol, 1,1,1-tris(hydroxymethyl)ethane, 2,2-dimethyl-1,3-propanediol or glycerol, the compound of the formula II is, for example, methyl 3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl)propionate or methyl 3-(3′-tert-butyl-4′-hydroxy-5′-methylphenyl)-pro
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: September 10, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Paul Dubs, Roger Martin, Samuel Evans, Stephan Allenbach, Marc Ribeaud
  • Publication number: 20020065201
    Abstract: The present invention relates to improved lubricant compositions highly resistant to oxidative degradation comprising selected 5-tert. -butyl-4hydroxy-3-methylphenyl substituted fatty acid esters, diphenylamines and zinc dithiophosphates. The compositions as defined above are characterized by superior antioxidative properties. This can be demonstrated in various standard tests such as Deposit and Oxidation Panel Test (DOPT) and Pressurized Differential Scanning Calorimetry (PDSC).
    Type: Application
    Filed: September 19, 2001
    Publication date: May 30, 2002
    Inventors: Marc Ribeaud, Paul Dubs, Serge Laemlin
  • Publication number: 20020016266
    Abstract: The invention relates to improved compositions comprising thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters and oil additives from the group of the polyol partial esters, amines and epoxides, and also to the use of those lubricant compositions in improving the performance properties of lubricants, such as greases, metal-working fluids, gear fluids or hydraulic fluids. Thiophosphoric acid esters and dithiophosphoric acid esters or phosphoric acid thioesters are present in the compositions preferably in a concentration of less than 400 ppm.
    Type: Application
    Filed: August 17, 2001
    Publication date: February 7, 2002
    Inventors: Michael Fletschinger, Peter Rohrbach, Peter Collen Hamblin, Dudley Clark, Marc Ribeaud
  • Patent number: 6296677
    Abstract: The lubricity (anti-wear properties) of fuels, for example hydrocarbon fuels, oxygenated fuels or mixtures thereof, particularly diesel or aviation fuels having reduced sulphur and/or aromatic content for compliance with regulator requirements, is improved by addition of at least a product which can be obtained by reacting components a), b) and c), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II and component c) is a compound of the formula III or a mixture of compounds of the formula III, in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for ex
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: October 2, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Marc Ribeaud, Paul Dubs, Michael Rasberger, Samuel Evans
  • Patent number: 5922657
    Abstract: A description is given of compositions comprisingA) a lubricant, a metalworking fluid or a hydraulic fluid, in particular a base oil from the group consisting of the mineral, vegetable and synthetic (for example poly-.alpha.-olefin or ester) oils;B) from 0.005 to 1.0% by weight of a compound of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are C.sub.3 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.6 cycloalkylmethyl, C.sub.9 -C.sub.10 bicycloalkylmethyl, C.sub.9 -C.sub.10 tricycloalkylmethyl, phenyl or C.sub.7 -C.sub.24 alkylphenyl or together are (CH.sub.3).sub.2 C(CH.sub.2).sub.2, andR.sub.3 is hydrogen or methyl, and, if desired,C) other customary oil additives from the groups consisting of antioxidants, metal passivators, rust inhibitors, dispersants, detergents, viscosity index improvers, pour point depressants, antifoams, solid lubricants and further antiwear additives.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: July 13, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hugo Camenzind, Marc Ribeaud, Michael Fletschinger, Peter Rohrbach