Thixotropic rust removal coating and process

C - Chemistry – Metallurgy – 23 – G

Patent

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Details

400/1347, 149/15

C23G 1/08 (2006.01) C09D 139/06 (2006.01) C23G 1/02 (2006.01) C08L 35/08 (2006.01)

Patent

CA 1221783

-1- THIXOTROPIC RUST REMOVAL COATING AND PROCESS Abstract of the Disclosure Spreadable thixotropic coating composition suitable for rust removal and containing polyvinylpyrrolidone, water and a thixotropic agent which is either xanthan gum or water-soluble crosslinked interpolymer of maleic anhydride, monovinyl alkyl ether and crosslinking agent. The composition has a pH between about 1.5 and 7.0 is applied to rusty metal surfaces and allowed to dry. During drying the rust becomes incorporated into the coating which is then easily removed.

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