Patent · US Active

Mineral oils containing phenolic antioxidants with improved color stability

US8933004B2 · kind B2 · utility

1Cited by

5References

12Claims

0Family size

Assignee

SI GROUP, INC. · US

Inventors

Bo Liu · San Diego, US
Vince J. Gatto · Baton Rouge, US
Gangkai Zhao · Shanghai, CN

Key dates

Filing date	Jan 6, 2012
Grant date	Jan 13, 2015
Priority date	—
Expiry date	Jan 6, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2030/20
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

This invention relates to a mineral oil containing hindered phenolic antioxidants with improved color stability. More particularly, it relates to non-coloring hindered phenolic blend that contains an oxygen scavenger, i.e., dibenzylhydroxyl amine (DBHA) as well as mineral oils containing such a blend.

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