Paint compositions and corrosion inhibiting pigments therefor

Details Paint compositions and corrosion inhibiting pigments therefor Paint compositions and corrosion inhibiting pigments therefor

C - Chemistry, Metallurgy

09

D

261/23, 31/47

C09D 5/08 (2006.01) C03C 3/16 (2006.01) C03C 3/17 (2006.01) C03C 4/00 (2006.01)

Patent

CA 1149598

C.F. Rake - A. Maries - P.F. Bateson 73-2-1 COATING COMPOSITIONS FOR INHIBITING CORROSION OF METAL SURFACES Abstract of the Disclosure A corrosion inhibiting material comprises a water soluble zinc oxide/phosphorus pentoxide/ alumina glass which, when in contact with water, releases ions which inhibit corrosion of adjacent metal surfaces. Advantageously the glass is finely ground and then dispersed in a resin carrier to form a paint. The glass composition is preferably 54.6 to 63.3 mol % zinc oxide, 35.8 to 45.3 mol percent phosphorus pentoxide; the remainder comprising at least 0.1 mol aluminium oxide.

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