Henkel Ag & Company, Kgaa

Brian J Marvin

Bashir M Ahmed

Omar Lufti Abu-Shanab

Shawn E Dolan

John D McGee

Manesh Nadupparambil Sekharan

Girdhari Kumar

Xueting Qiu

Derek A Hickey

Manesh Nadupparambil Sekharen

This invention relates to an autodeposition bath composition comprising a nitrogen containing compound, said bath being suitable for generating a uniform autodeposition coating on two or more of ferrous, aluminum, magnesium and zinciferous multi-metal substrate surfaces, treated either sequentially or simultaneously. The invention also provides autodeposition concentrate compositions for use in the bath, methods of making and using the concentrate and bath, as well as metal articles comprising an autodeposition coating according to the invention.

Single bath autodeposition coating for combination metal substrates and methods therefor

Coating bath compositions and processes useful in depositing organic polymeric coatings on metal substrates at low voltages are provided, the baths comprising one or more dispersed organic film forming polymers; and an etchant; wherein the principle film forming polymer is stabilized in the bath by the presence of anionic surfactant, but can be readily anodically deposited under low voltage. The invention also relates to processes of depositing a coating and metal substrates coated using the baths and processes of the invention.

Electrodeposition of an autodepositable polymer

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Warren, MI, United States of America

Brian J Marvin