HYDROPHILIC EMULSIFIERS BASED ON POLYISOBUTYLENE

摘要

The invention relates to ampiphilic compounds and mixtures thereof, methods for production and use thereof in oil-in-water emulsions. The compounds are made up of a lipophilic and a hydrophilic part. Both parts are linked together by means of a linker derived from succinic acid. The lipophilic part is formed from a polyisobutylene group with a number-average molecular weight Mn of 300 to 10000. The hydrophilic part is characterised in preferably having two polyethylene glycol chains which can be produced by reaction of OH, -N(H)- and/or -NH2 with ethylene oxide. A globular non-linear structure for the hydrophilic part is thus achieved, such that the hydrophilic character of said compounds predominates and makes the same particularly suitable for oil-in-water emulsions. The invention further relates to preparations for the treatment of metal surfaces, in particular for corrosion protection, comprising at least one said compound, at least one solvent which can dissolve, disperse or emulsify said compound(s) and optionally further components. Furthermore, a method for treatment of metal surfaces by bringing the metal surface into contact with said preparation and coated metal surfaces are disclosed.