Rust-preventive oil composition

US9102894B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9102894-B2
Application numberUS-200913256840-A
CountryUS
Kind codeB2
Filing dateDec 10, 2009
Priority dateJun 29, 2009
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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Abstract

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A rust preventive oil composition comprising a nonionic surfactant with a hydrophilic-lipophilic index of 10-12 at 0.1-10% by mass based on the total amount of the composition, and at least one rust-preventing additive selected from among sarcosine compounds, sulfonic acid salts, esters, amines, carboxylic acids, fatty acid amine salts, carboxylic acid salts, paraffin waxes, oxidized wax salts, alkyl or alkenylsuccinic acid derivatives and boron compounds, the composition having a 40° C. kinematic viscosity of 1-50 mm 2 /s.

First claim

Opening claim text (preview).

The invention claimed is: 1. A rust preventive oil composition comprising: a lubricant base oil in an amount of at least 70% by mass based on the total amount of the composition, water in an amount of 0.1-10% by mass based on the total amount of the composition, a nonionic surfactant with a hydrophilic-lipophilic index of 10-12 and with an amount of 0.1-10% by mass based on the total amount of the composition, a sarcosine compound in an amount from 0.05% to 10% by mass based…

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What does patent US9102894B2 cover?
A rust preventive oil composition comprising a nonionic surfactant with a hydrophilic-lipophilic index of 10-12 at 0.1-10% by mass based on the total amount of the composition, and at least one rust-preventing additive selected from among sarcosine compounds, sulfonic acid salts, esters, amines, carboxylic acids, fatty acid amine salts, carboxylic acid salts, paraffin waxes, oxidized wax salts,…
Who is the assignee on this patent?
Shibata Junichi, Motoyama Tadaaki, Endou Kazuhiko, and 1 more
What technology area does this patent fall under?
Primary CPC classification C10M133/16. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 11 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).