Sol for coating metals

Details Sol for coating metals Sol for coating metals

1996-11-04

1998-09-29

Lovering, Richard D.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1441, 10628719, 25231501, 2523152, 501 12, C04B10361, C09D 508

Patent

active

058141375

ABSTRACT:
A surface treatment, especially for titanium and aluminum alloys, forms a sol-gel film covalently bonded on the metal surface to produce strong, durable adhesive bonds between the metal and an organic adhesive without using toxic chemicals and while significantly reducing or eliminating rinse water requirements of traditional anodizing or etching processes. An aqueous sol containing an zirconium and an organosilane with an organic acid catalyst and alkoxyzirconium stabilizer is applied to etched or grit blasted substrates by dipping, spraying, or drenching, to produce bonds in a single application comparable in strength and performance to standard anodize controls. Parameters affecting performance include the sol composition, the Si/Zr ratio, the ratio of sol ingredients, the concentration of the sol, the carrier solvent, solution age, catalysts, surface pretreatment, application method, curing process, and primer used.

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Abstract, Method for Improving Durability of Electrode Tip, Japanese Appl. 63-86129 (Kawamoto) Jan. 1990.

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