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Class 508/574 - Overbased or carbonated (e.g., overbased sulfurized phenates, etc.)


Subclass of Class 508 - Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions
Definition: Compositions wherein the organic sulfur compound is overbased
No. of patents: 80
Last issue date: 05/22/2012


1    
NumberTitleIssue Date
8183192Lubricating oil additive and lubricating oil composition containing same
An overbased salt of an oligomerized alkylhydroxyaromatic compound for use in a lubricating oil composition is disclosed, wherein the alkyl group of the alkylhydroxyaromatic compound is derived from an olefin mixture comprising propylene oligomers having an initial ...
05/22/2012
7405185Process for making Group II metal overbased sulfurized alkylphenols
The present invention is directed to a novel process for making Group II metal overbased sulfurized alkylphenols, which process uses alkylene carbonate as both a source of carbon dioxide and alkylene glycol. In particular, under the reaction conditions using ethylen...
07/29/2008
7384896Controlled release of additive gel(s) for functional fluids
In accordance with the present invention, it has been discovered that additive gels can provide additives to a functional fluid over time. In accordance with the present invention it has been discovered that an additive gel comprising ...
06/10/2008
6869919Lubricating oil compositions
Soot induced kinematic viscosity increase of lubricating oil compositions for diesel engines equipped with EGR systems can be ameliorated by selection of viscosity modifier, lubricating oil flow improvers, detergents and/or dispersants. ...
03/22/2005
6645922Lubrication
A lubricating oil composition suitable for a two-stroke cross-head marine diesel engine. The lubricating oil composition comprises a base oil and an oil-soluble overbased metal detergent additive in the form of a complex wherein the basic material of the ...
11/11/2003
6569818Lubricating oil composition
A lubricating oil composition having a low P content of 0.01 to 0.1 wt. %, and a sulfated ash of 0.1 to 1 wt. %, which is composed of a) a major amount of mineral base oil having a low S content of at most 0.1 wt. %; b) an ashless alkenyl or alkyl-succini...
05/27/2003
6569821Overbased metal detergents
An overbased metal detergent having friction-modifying properties comprises colloidal inorganic base particles stably dispersed in an oil of lubricating viscosity. The colloidal particles constitute from 15 to 40 mass % of the detergent, and a stabilizing...
05/27/2003
6551965Marine diesel engine lubricating oil composition having improved high temperature performance
A lubricating oil composition containing a base oil of lubricating viscosity, overbased sulfurized alkylphenate detergent or its calcium salt, an overbased alkylsulfonate detergent or its calcium salt, an ashless dispersant, and a zinc dialkyldithiophosph...
04/22/2003
6339052Lubricant compositions for internal combustion engines
A lubricating oil composition for gasoline and diesel internal combustion engines includes a major portion of an oil of lubricating viscosity; from 0.1 to 20.0% w/w of a component A which is a sulfurized, overbased calcium phenate detergent derived from d...
01/15/2002
6310010High molecular weight dispersant compositions and their preparation
Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature: (i) at least one high molecular weight ashless dispersant; (ii) at least one oil-soluble overbased metal detergent; and (iii) at least one surface-active agent c...
10/30/2001
6235688Detergent containing lithium metal having improved dispersancy and deposit control
Non-thixotropic, sodium-free lubricant additive having from 10% to 50% of a liquid organic diluent and from 30% to 90% of a substituted hydrocarbaryl metal salt. At least 30 mole percent of the metal in the metal salt is lithium, and the salt is essential...
05/22/2001
6225266Zinc-free continuously variable transmission fluid
A zinc-free lubricating composition for lubricating a continuously variable transmission, the lubricating composition comprising a mixture of a major amount of a lubricating oil and an effective amount of a performance enhancing additive combination compr...
05/01/2001
6162769Lubricating oil compositions suitable for use in medium speed diesel engines
A lubricating oil composition reduces the adverse effects of oxidation in a medium speed diesel engine. That lubricating oil composition has a major amount of a base oil of lubricating viscosity, from 1% to 30% of a highly overbased oil-soluble sulfurized...
12/19/2000
6153565Overbased metal-containing detergents
Phenate overbased detergents and salicylate overbased detergents with TBN: % surfactant ratios of 11 or more are useful marine diesel lubricant additives....
11/28/2000
6140279Concentrates with high molecular weight dispersants and their preparation
Concentrates for lubricating oil compositions are prepared by mixing at elevated temperature:(i) at least one high molecular weight ashless dispersant;(ii) at least one oil-soluble overbased metal detergent; and (iii) at least one other concentrate additi...
10/31/2000
6090759Alkaline earth metal hydrocarbyl phenates, their sulphurized derivatives, their production and use thereof
An additive concentrate suitable for incorporation into a finished lubricating oil composition is disclosed. The additive concentrate comprises: (a) a lubricating oil, and (b) a lubricating oil soluble sulphurized or non-sulphurized alkaline earth metal h...
07/18/2000
6090760Sulphurized alkaline earth metal hydrocarbyl phenates, their production and use thereof
An additive concentrate suitable for incorporation into a finished lubricating oil composition is disclosed. The additive concentrate comprises: (a) a lubricating oil; (b) a lubricating oil soluble sulphurized alkaline earth metal hydrocarbyl phenate modi...
07/18/2000
6034039Lubricating oil compositions
Complex detergents provide improved deposit control and corrosion protection in crankcase lubricants....
03/07/2000
6028039Highly overbased lubricating oil additive concentrates their preparation and use
An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising: (I) a lubricating oil soluble sulphurised or non-sulphurised alkaline earth metal hydrocarbyl phenate derived either from a...
02/22/2000
6010986Alcohol borate esters to improve bearing corrosion in engine oils
Disclosed is a composition for reducing the copper-lead bearing corrosion of a formulation that includes a major amount of an oil of lubrication viscosity and a minor amount of a corrosion-reducing additive comprising: (A) a dispersant with a total base number...
01/04/2000
6008165Alcohol borate esters and borated dispersants to improve bearing corrosion in engine oils
1. A composition for reducing the copper-lead bearing corrosion of a formulation that includes a major amount of an oil of lubrication viscosity and a minor amount of a corrosion-reducing additive comprising (A) a borated dispersant with a total base number of...
12/28/1999
6008166Detergent compositions
A detergent concentrate composition suitable for incorporation into a finished lubricating oil comprises: (A) an additive concentrate comprising: (a) a lubricating oil, and (b) a lubricating oil soluble sulphurised or non-sulphurised alkaline earth metal hydro...
12/28/1999
5942476Low-viscosity highly overbased phenate-carboxylate
A low-viscosity overbased hydrocarbyl phenate-carboxylate is produced by contacting a mixture of a hydrocarbyl phenate, at least one solvent, metal hydroxide, aqueous metal chloride, and an alkyl polyhydric alcohol containing from one to five carbon atoms...
08/24/1999
5910468Process for the preparation of calcium phenate detergents from cashew nut shell liquid
A process for the preparation of sulphurized calcium phenate from cashew nut shell liquid (CNSL). Distilled or hydrogenated distilled CNSL is reacted with calcium salt and sulphur in the presence of promoters to obtain a reaction mixture. The reaction mix...
06/08/1999
5728657Production of low fine sediment high TBN phenate stearate
An overbased phenate stearate is produced by overbasing a mixture that comprises sulfurized phenate, metal stearate (such as calcium stearate), at least one solvent, calcium hydroxide, and water, by contacting the mixture with carbon dioxide in the presen...
03/17/1998
5716914Alkaline earth metal hydrocarbyl phenates, their sulphurized derivatives, their production and use thereof
Process for producing an additive concentrate having a viscosity of less than 1000 cSt at 100 EC, by reacting at elevated temperature and in the presence of an inorganic halide or calcium acetate catalyst (A) either (i) a hydrocarbyl phenol or (ii) a hydr...
02/10/1998
5714443Sulphurised alkaline earth metal hydrocarbyl phenates, their production and use thereof
An additive concentrate suitable for incorporation into a into a finished lubricating oil composition, the additive concentrate comprising: (a) a lubricating oil; (b) a lubricating oil soluble sulphurised alkaline earth metal hydrocarbyl phenate modified ...
02/03/1998
5677270Methods for preparing normal and overbased phenates
Processes for preparing normal and overbased metal sulfurized alkylphenates. The processes am characterized by a sulfurization reaction using a lower carboxylic acid catalyst which does not use a polyol promoter, e.g., ethylene glycol. The process affords...
10/14/1997
5674821Detergent compositions
A detergent concentrate composition suitable for incorporation into a finished lubricating oil comprises: (A) an additive concentrate comprising: (a) a lubricating oil, and (b) a lubricating oil soluble sulphurized or non-sulphurized alkaline earth metal hydro...
10/07/1997
5589445Overbased metal salts, their preparation and use
An overbased metal salt of a hydrocarbyl-substituted sulphurised or non-sulphurised phenol, a calixarene having a substituent hydroxyl group or groups available for reaction with metal base or a linear phenol/formaldehyde resin wherein the metal moiety co...
12/31/1996
5397486Lubricating oil compositions for railroad diesel engines
Disclosed are lubricating oil compositions for use in 2-cycle railroad diesel engines having silver surfaced engine parts, which composition comprises an effective amount of a silver wear inhibiting compound. A method for inhibiting wear of silver-surface...
03/14/1995
5370805Chlorine-free diesel engine lubricating composition
A railway diesel engine lubricating composition is essentially free of zinc dithiophosphate wear inhibitors and chlorinated inhibitors. This composition has an oil of lubricating viscosity; a noncarbonated sulfurized calcium alkyl phenate, a carbonated su...
12/06/1994
5330665Production of either an alkaline earth metal alkyl phenate or a sulphurised alkaline earth metal alkyl phenate
Alkaline earth metal alkyl phenates are produced by reacting at elevated temperature, in the presence or absence of sulphur, an alkyl phenol with an alkaline earth metal base in the presence as solvent of either an alkylene or polyalkylene alkyl ether of ...
07/19/1994
5324440Surbased colloidal product containing organic sulfur and their use as detergent additives having an antiwear and extreme-pressure effect in lubricating oils
A description is given of colloidal sulphur products, their preparation and their use as additives in lubricating oils. These products result from the reaction on a superbasic detergent additive, optionally modified by reaction with a boron derivative, of...
06/28/1994
5320762Low viscosity Group II metal overbased sulfurized C12 to C22 alkylphenate compositions
Disclosed are Group II metal overbased sulfurized alkylphenate compositions and in particular to Group II metal overbased sulfurized alkylphenate compositions derived from alkylphenols enriched in alkyl substituents attached to the phenol ring in a "middl...
06/14/1994
5320763Low viscosity group II metal overbased sulfurized C10 to C16 alkylphenate compositions
Disclosed are Group II metal overbased sulfurized alkylphenate compositions and in particular to Group II metal overbased sulfurized alkylphenate compositions derived from alkylphenols enriched in alkyl substituents attached to the phenol ring in an "end"...
06/14/1994
5318710Low viscosity Group II metal overbased sulfurized C16 to C22 alkylphenate compositions
Disclosed are Group II metal overbased sulfurized alkylphenate compositions and in particular to Group II metal overbased sulfurized alkylphenate compositions derived from alkylphenols enriched in alkyl substituents attached to the phenol ring in a "skewe...
06/07/1994
5292443Process for producing neutralized sulfurized alkylphenate lubricant detergent additive
A non-diluent oil process for producing a fluid sulfurized/neutralized phenate comprising: a) oligomerizing a (C6 -C20) olefin; b) alkylating the oligomerized olefin to produce a oligomerized (C6 -C20) alkyl phenol; ...
03/08/1994
5281345Process for the preparation of a lubricating oil additive concentrate with an organic halide catalyst
A process for the production of a lubricating oil additive concentrate comprises reacting at elevated temperature the following components: component (A) a defined acid component (B)--a calcium base added either in a single addition or in a plurality of additi...
01/25/1994
5250204Sulfite overbased products and process
Sulfite overbased compositions which are particularly useful in metal-working compositions are obtained....
10/05/1993
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