Non-chromate corrosion inhibitors for aluminum alloys

Details Non-chromate corrosion inhibitors for aluminum alloys Non-chromate corrosion inhibitors for aluminum alloys

C - Chemistry, Metallurgy

23

C

C23C 22/12 (2006.01) C09D 5/08 (2006.01) C23C 22/17 (2006.01)

Patent

CA 2234146

A non-chromate, corrosion-inhibiting coating composition for metal surfaces includes at least one inhibitor selected from the group consisting of phosphates, phosphosilicates, silicates, and mixtures thereof, at least one inhibitor selected from the group consisting of titanates, zinc salts, and mixtures thereof, and a carrier for these inhibitors, the carrier capable of placing the inhibitors in proximity with the metal surface. In a preferred embodiment, the coating composition further includes a borate such as boric acid, and a succinate. A preferred phosphate includes calcium dihydrogen phosphate, and sodium titanium oxide is a preferred titanate. The zinc salt can include zinc phosphate or zinc cyanamide.

Composition de revêtement pour surfaces métalliques inhibant la corrosion et exempte de chromate, qui comporte au moins un inhibiteur choisi dans le groupe constitué de phosphates, de phosphosilicates, de silicates et de mélanges desdites substances, au moins un inhibiteur choisi dans le groupe constitué des titanates, des sels de zinc et de mélanges desdites substances et un véhicule pour lesdits inhibiteurs, ledit véhicule étant capable de placer les inhibiteurs à proximité de la surface métallique. Dans un mode de réalisation préféré, ladite composition de revêtement comporte en outre un borate, tel qu'un acide borique, et un succinate. Le phosphate préféré est un dihydrogénophosphate de calcium et le titanate préféré est de l'oxyde de titane-sodium. Le sel de zinc peut être du phosphate de zinc ou du cyanamide de zinc.

Affiliated with

Also associated with

Rating

Non-chromate corrosion inhibitors for aluminum alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-chromate corrosion inhibitors for aluminum alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-chromate corrosion inhibitors for aluminum alloys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1384299