Helmut Witteler

Complexing agent for treating metallic and plastic surfaces

Polymer derivatives for the treatment of metals

Polymer derivatives for treating metals

Hydrophobic-hydrophilic compounds for treating metallic surfaces

Komplexbildner für die Behandlung von Metall- und Kunstoffoberflächen

Organic Corrosion Inhibitors for Interim Corrosion Protection

Polyisobutene phosphonic acid and the derivatives thereof

Phosphoric esters of polyisobutene-substituted aromatic hydroxy compounds

Polyisobutene phosphonic acids are useful as a surface modifier for organic or inorganic materials, as a corrosion inhibitor, antiwear agent, emulsifier, dispersing agent, adhesion promoter, wetting agent or printing ink additive

New polybutylphenyl phosphate esters, used e.g. as surface modifier, corrosion inhibitor, dispersant or adhesion promoter, are prepared by corresponding phenol with phosphorus oxyhalide and optionally water, alcohol, thiol or amine