POLYMER-CONTAINING PRE-RINSE PRIOR TO A CONVERSION TREATMENT
A multi-step method for anti-corrosion pretreatment of components made from metallic materials, in which a wet chemical treatment with an aqueous composition (A) containing a dissolved and/or dispersed polymer P, which is substituted with heterocycles containing at least one quaternary nitrogen hete...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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