Patent · US Expired

Lubricant compositions for internal combustion engines

US6339052B1 · kind B1 · utility

16Cited by

22References

12Claims

0Family size

Assignee

Indian Oil Corporation Limited · IN

Inventors

Khem Chand Dohhen · Faridabad, IN
Krishan Kumar Swami · Faridabad, IN
Pankaj Kumar Mondal · Faridabad, IN
Shanti Parkash · Manesar, IN
Rakesh Sarin · Faridabad, IN
Deepak Kumar Tuli · Faridabad, IN
Akhilesh Kumar Bhatnagar · Faridabad, IN

Key dates

Filing date	Jun 30, 2000
Grant date	Jan 15, 2002
Priority date	—
Expiry date	Jun 30, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/28
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

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 distilled, hydrogenated cashew nut shell liquid; and from 0.1 to 10.0% w/w of a component B which is an amine salt of phosphorodithioic acid derived from cashew nut shell liquid and has a general formula as follows:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.