Patent · US Active

Cleaning and corrosion inhibition system and composition for surfaces of aluminum or colored metals and alloys thereof under alkaline conditions

US8227398B2 · kind B2 · utility

3Cited by

19References

16Claims

0Family size

Assignee

Diversey, Inc. · US

Inventors

Harry Kany · Hettenleidelheim, DE
Holger Theyssen · Freinsheim, DE

Key dates

Filing date	Nov 17, 2011
Grant date	Jul 24, 2012
Priority date	—
Expiry date	Nov 17, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23G1/22
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to corrosion inhibitor systems, in particular to cleaning and corrosion inhibiting compositions for surfaces of aluminum or colored metals and alloys thereof under alkaline conditions, especially in the food and pharmaceutical industries. The cleaning and corrosion inhibiting compositions comprise as a corrosion inhibitor at least one alkyleneoxy alkylphosphate di- or triester having the general formula

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