Abstract

Lubricating oil compositions for transmissions comprises (A) a lubricating base oil with a kinematic viscosity at 100° C. adjusted to 1.5 to 6 mm 2 /s, composed of (A1) a lubricating base oil with a kinematic viscosity at 100° C. of 1.5 mm 2 /s or higher and lower than 7 mm 2 /s or (A1) …

Legal parties

Party
Inventors (applicants): Toru Matsuoka, Masaaki Itou
Assignees (initial): Nippon Oil Corporation (Tokyo, JP)
Agents: Panitch Schwarze Belisario & Nadel LLP (attorney)

The application was examined by James Goloboy (USPTO dept. 1771)

Claims

  • 1. A lubricating oil composition for transmissions consisting essentially of components (A), (B), (C) and (D) …
  • 2. The lubricating oil composition according to claim 1 , wherein Component (A1) further comprises …
  • 3. The lubricating oil composition according to claim 1 , wherein (B) further comprises a poly(meth)acrylate …

International priority data

JP: 2004-308831 / Oct. 22, 2004 (national)
JP: 2004-308828 / Oct. 22, 2004 (national)
JP: 2004-308830 / Oct. 22, 2004 (national)
JP: 2004-308829 / Oct. 22, 2004 (national)

Cited documents

Patents

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Description

Field of the Invention

The present invention relates to lubricating oil compositions for transmissions and more particularly to those suitable for automatic, manual and continuously variable transmissions of automobiles, which compositions have a long …

Cross-Reference to Related Application

This application is a continuation of International Application No. PCT/JP2005/019644, filed Oct. 19, 2005, which was published in the Japanese language on Apr. 27, 2006, under International Publication No. 2006/043709 …

Disclosure of the Invention

The present invention was made in view of the foregoing situations and intends to provide a lubricating oil for transmissions which is low in viscosity but capable of providing a long …

More details about Lubricating Oil Composition for Transmission

Miscellaneous patent data

The published applicant's name is Matsuoka Toru, the grant publication number is 08846589, the term of the patent was extended by 1224 days, the primary classification An additional reactant contains nitrogen has been designated to the document, the protection scope is defined by 11 claims, an application examiner - James Goloboy (1771 USPTO department), assigned to a foreign company or corporation, the invention is titled Lubricating Oil Composition for Transmission, the recorded agent's organization is Panitch Schwarze Belisario & Nadel LLP, the assignee company is Nippon Oil Corporation located in Tokyo (JP), the claim 1 is exemplary as chosen by the examiner, similar categories include Chalcogen attached indirectly to the -C(=O)O- group by nonionic bonding, Carboxylic acids, Salts thereof, containing conjugated diene, Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen, well-defined aliphatic, Heavy metal or aluminum bonded directly to carbon, Lubricating compositions characterised by the base-material being a compound of unknown or incompletely defined constitution, compound containing nitrogen, sulfur, phosphorus, boron, or halogen, The organic compound is a naturally occurring triglyceride or a naturally occurring wax ester, at least one of them being an organic compound containing atoms of elements not provided for in groups C10M 141/02-C10M 141/10, Lubricating compositions characterised by the thickener being a non-macromolecular organic compound other than a carboxylic acid or salt thereof, having more than one carboxyl group bound to a carbon atom of a six-membered aromatic ring, Halogen attached indirectly to the ether oxygen by nonionic bonding, containing silicon, carbonic or haloformic acids, the application publication date is Apr. 19, 2007, developed by Toru Matsuoka et al., the grant publication date is Sep. 30, 2014, the patent particularly claims a lubricating oil composition for transmissions consisting essentially…, numbered 11/737,339 (application), the known inventor's name is Toru Matsuoka.

Invention classification information

The invention is classified under Amides, Imides, Mixtures of base-materials and additives, Specified values of viscosity or viscosity index, Nitrogen attached indirectly to the hetero ring by nonionic bonding, Polymer of alpha, beta-olefinically unsaturated carboxylate monomer, An additional reactant contains nitrogen, Acrylate, Methacrylate. The designated search classifications include An additional reactant contains nitrogen.

Patent details
Publication number 08846589
Publication date Sep. 30, 2014
Kind code B2
Application number 11/737,339
Application date Apr. 19, 2007
Application type U
Application series code 11
Extension term 1224
National classification 508/225
Total number of claims 11
Exemplary claims 1
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