Patent · US Expired

Viscosity index improver concentrates

US7018962B2 · kind B2 · utility

17Cited by

15References

19Claims

0Family size

Assignee

Infineum International Limited · GB

Inventors

Ricardo A. Bloch · Scotch Plains, US
Jai G. Bansal · Hackettstown, US
Dean B. Clarke · Neshanic Station, US

Key dates

Filing date	Jun 12, 2003
Grant date	Mar 28, 2006
Priority date	—
Expiry date	Apr 20, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2070/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A viscosity index (VI) improver concentrate containing at least one VI improver, from 0 to about 5 mass % of lubricating oil flow improver (LOFI) and diluent oil, wherein the diluent oil has a kv100 of at least about 3.0 cSt and a CCS at −35° C. of less than 3700 cPs, and wherein at least about 98 mass % of the concentrate is composed of VI improver, LOFI and diluent oil.

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