Patent · US Active

Use of polyester polyamine and polyester polyquaternary ammonium compounds as corrosion inhibitors

US8940227B2 · kind B2 · utility

1Cited by

21References

18Claims

0Family size

Assignee

Akzo Nobel Chemicals International B.V · NL

Inventors

Per Hellberg · Svenshögen, SE
Natalija Gorochovceva · Munkedal, SE

Key dates

Filing date	Aug 26, 2011
Grant date	Jan 27, 2015
Priority date	—
Expiry date	Oct 17, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2030/64
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to the use of a polyesteramine or a polyester polyquaternary ammonium compound as a corrosion inhibitor for metal surfaces, and to a method for protecting a metal surface from corrosion by contacting the metal surface with said corrosion inhibitor.

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