Henkel Ag & Company, Kgaa

Lisa Miller

Kirk Kramer

Shawn E Dolan

John D McGee

Thomas Sullivan Smith, Ii

John L Zimmerman

Gregory T Donaldson

William G Kozak

Patrick A Scalera

Eric C Kuhns

A circuit board water-proofing coating composition is provided comprising: at least one passivating agent, preferably containing a molecule comprising a thio-functional group, desirably a thiol group, an azolic moiety, or an azole, and combinations thereof; at least one binder component comprising an organic or inorganic film-forming polymer, and/or one or more polymer pre-cursors polymerizable on a substrate surface; and optionally one or more additive(s); also provided are methods of making and using the coating composition and coated circuit boards.

Coatings for waterproofing electronic components

A low sludge trivalent chromium based conversion coating bath is provided which forms corrosion resistant coatings on aluminum and aluminum alloys by contact with the bath, which is suitable for use as a rinseable or dry-in place conversion coating for metal, that comprises trivalent chromium cations, fluorometallate anions, guanidinium ions and at least one organic anti-corrosion additive, and other optional components, as well as methods of making and using same, and metals coated using the compositions, the coated aluminum serving as an effective base for paint primers.

Trivalent chromium-containing composition for aluminum and aluminum alloys

A coating composition and a method is used to coat metallic substrates for corrosion resistance. The coating composition includes acid, metal acetate, organosilane and water. The method includes steps of depositing the composition on an aluminum or aluminum alloy substrate and allowing the composition to dry to form a sol-gel coating on the substrate.

Corrosion resistant sol-gel coating and composition and process for making the same

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Clinton Township, MI, United States of America

Lisa Miller