Patent · US Active

Process for cleaning soiled metal surfaces and substances useful for such process

US10907259B2 · kind B2 · utility

1Cited by

5References

11Claims

0Family size

Assignee

BASF SE

Inventors

Stephan Hueffer · Ludwigshafen, DE
Alejandra Garcia Marcos · Ludwigshafen, DE
Eva-Maria Reis-Walther · Ludwigshafen, DE

Key dates

Filing date	Feb 16, 2016
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Mar 18, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/16
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Process for cleaning soiled metal surfaces characterized in such cleaning is carried out using a composition that comprises at least one alkoxylated polyethylenimine (B) with a polydispersity Q=Mw/Mn of at least 3.5 and an average molecular weight Mw in the range of from 2,500 to 1,500,000 g/mol.

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