Patent · US Active

Detergent

US8012918B2 · kind B2 · utility

3Cited by

2References

11Claims

0Family size

Assignee

Infineum International Limited · GB

Inventors

Richard D. Bertram · Witney, GB
Peter J. Dowding · Bloomfield Hills, US
Peter D. Watts · Ashford, GB

Key dates

Filing date	Apr 10, 2008
Grant date	Sep 6, 2011
Priority date	—
Expiry date	Apr 10, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/252
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

An overbased metal hydrocarbyl-substituted hydroxybenzoate detergent having a basicity index of less than 2 and a degree of carbonation of 80% or greater is disclosed. The overbased metal hydrocarbyl-substituted hydroxybenzoate detergent reduces asphaltene precipitation or ‘black paint’ in a marine diesel engine.

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