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

• Main Authors: HUEFFER STEPHAN, GARCIA MARCOS ALEJANDRA, REIS-WALTHER EVA-MARIA
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2017
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CRACKING HYDROCARBON OILS; DETERGENT COMPOSITIONS; DETERGENTS; DIFFUSION TREATMENT OF METALLIC MATERIAL; FATTY ACIDS THEREFROM; FUELS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LUBRICANTS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MINERAL WAXES; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF GLYCEROL; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; RESIN SOAPS; SOAP OR SOAP-MAKING; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF SINGLE SUBSTANCES AS DETERGENTS

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. 本发明涉及清洁脏污金属表面的方法，其特征在于该清洁使用包含至少种烷氧基化聚乙烯亚胺(B)的组合物进行，所述烷氧基化聚乙烯亚胺(B)具有至少3.5的多分散性Q＝M/M和2,500-1,500,000克/摩尔的平均分子量M。