Patent · US Active

Extended operation engine coolant composition

US9328278B2 · kind B2 · utility

1Cited by

16References

28Claims

0Family size

Assignee

Ashland Licensing and Intellectual Property LLC · US

Inventors

David E. Turcotte · Woodhaven, US
Ladislaus Meszaros · Mutterstadt, DE
David F. Embaugh · Lancaster, US
Gefei Wu · Lexington, US

Key dates

Filing date	Jun 12, 2013
Grant date	May 3, 2016
Priority date	—
Expiry date	Sep 16, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23F11/126
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The invention relates to an engine coolant composition, and a method of increasing the operational life of a coolant composition in an engine, wherein an isononanoic acid is incorporated into the generally glycol based coolant fluid in place of nitrous acid or its salt to reduce pitting corrosion on iron containing surfaces.

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