Aqueous coating of silane precursor from epoxy and amino trialko

Details Aqueous coating of silane precursor from epoxy and amino trialko Aqueous coating of silane precursor from epoxy and amino trialko

1990-12-21

1993-04-27

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523421, 524266, C08K 320, C08L 8306

Patent

active

052062856

ABSTRACT:
Process for producing novel water-base coating compositions and for applying such compositions to metal surfaces to render them corrosion-resistant, comprising reacting an epoxy trialkoxy silane with a primary aminotrialkoxy silane in a molar ratio providing one epoxy group for reaction with each primary amino hydrogen to form a hydrolyzable siloxane precursor coating composition which is solubilized, such as by the presence of a volatile organic weak acid and hydrolyzing said precursor compound in situ on a metallic surface to form a silanol precursor compound which is bonded to a metallic surface and is simultaneously cross-linked with itself and/or with external crosslinking agents under dehydration conditions to form a corrosion-resistant conversion coating or bonding coating having exceptional durability.

REFERENCES:
patent: 5025049 (1991-06-01), Takarada et al.

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