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US 2018/0119291 A1Published application
Process for cleaning soiled metal surfaces and substances useful for such process
AssigneeBASF SE
InventorsStephan Hueffer, Alejandra Garcia Marcos, Eva-Maria Reis-Walther
Life of this patent
Estimating the term…
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.
Claims16
A process for cleaning soiled metal surfaces, the process comprising:
- cleaning the soiled metal surfaces using a composition that comprises at least one alkoxylated polyethylenimine (B) with a polydispersity Q=Mw/Mn in the range from 3.5 to 10 and an average molecular weight Mw in the range of from 2,500 to 1,500,000 g/mol.
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An alkoxylated polyethylenimine (B) with a polydispersity Q=Mw/Mn in the range from 3.5 to 10 and an average molecular weight Mw in the range from 2,500 to 1,500,000 g/mol.
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Dependencies are inferred from the claim text.