Lubricating oil composition for working using sizing press

US8999899B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8999899-B2
Application numberUS-58663505-A
CountryUS
Kind codeB2
Filing dateMar 30, 2005
Priority dateMar 31, 2004
Publication dateApr 7, 2015
Grant dateApr 7, 2015

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Abstract

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Provided is a lubricating oil composition for sizing which is excellent in machinability and degreasing efficiency and which is excellent in compatibility with an impregnating oil and a sintered metal of oil impregnated bearings. A lubricating oil composition for sizing, including (A) a lubricating base oil having a kinematic viscosity of 0.5 to 100 mm 2 /s at 40° C. and compounded therein (B) an extreme-pressure agent in an amount of 0.1 to 10% by mass, and (C) a metal deactivator in an amount of 0.01 to 5% by mass, each based on a total amount of the composition.

First claim

Opening claim text (preview).

I claim: 1. A lubricating oil composition, consisting of: (A) a lubricating base oil having a kinematic viscosity of 0.98 to 56 mm 2 /s at 40° C., which is selected from the group consisting of a hydrogenated product of polyisobutene, a naphthene base oil, a paraffin base mineral oil, alkylbenzene, and a combination thereof, and is present in an amount of from 91 to 99.45% by mass; (B) dioleyl hydrogen phosphite, present in an amount of 1 to 8% by mass; and (C) at least one me…

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What does patent US8999899B2 cover?
Provided is a lubricating oil composition for sizing which is excellent in machinability and degreasing efficiency and which is excellent in compatibility with an impregnating oil and a sintered metal of oil impregnated bearings. A lubricating oil composition for sizing, including (A) a lubricating base oil having a kinematic viscosity of 0.5 to 100 mm 2 /s at 40° C. and compounded therein (B) …
Who is the assignee on this patent?
Kaneko Masato, Idemitsu Kosan Co
What technology area does this patent fall under?
Primary CPC classification C10M141/10. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).