Anti-corrosion and/or passivation compositions for metal-containing substrates and methods for making, enhancing, and applying the same

Patent metadata

Field	Value
Publication number	US-10253189-B2
Application number	US-201615041894-A
Country	US
Kind code	B2
Filing date	Feb 11, 2016
Priority date	Feb 11, 2016
Publication date	Apr 9, 2019
Grant date	Apr 9, 2019

Abstract

A corrosion inhibition composition is disclosed comprising a zinc oxide, a zinc phosphate, a calcium silicate, an aluminum phosphate, a zinc calcium strontium aluminum orthophosphate silicate hydrate, a molybdate compound, a silicate compound, and a zinc phthalate compound.

First claim

What is claimed is:

1. A corrosion inhibition composition comprising a zinc oxide, a zinc phosphate, a calcium silicate, an aluminum phosphate, a zinc calcium strontium aluminum orthophosphate silicate hydrate, a molybdate compound, a silicate compound, and a zinc phthalate compound.

2. The corrosion inhibition composition of claim 1 , wherein the zinc phthalate compound comprises at least one of a nitrophthalate zinc salt or a phthalic acid zinc salt.

3. The corrosion inhibition composition of claim 1 , wherein the molybdate compound is a zinc molybdate compound.

4. The corrosion inhibition composition of claim 1 , wherein the molybdate compound comprises between 10% and 90% by weight of the corrosion inhibition composition.

5. The corrosion inhibition composition of claim 1 , wherein the silicate compound comprises between 10% and 90% by weight of the corrosion inhibition composition.

6. The corrosion inhibition composition of claim 1 , wherein the zinc oxide, the zinc phosphate, the calcium silicate, the aluminum phosphate, and the zinc calcium strontium aluminum orthophosphate silicate hydrate, collectively, comprise between 10% and 90% by weight of the corrosion inhibition composition.

7. The corrosion inhibition composition of claim 1 , wherein the zinc oxide, the zinc phosphate, the calcium silicate, the aluminum phosphate, and the zinc calcium strontium aluminum orthophosphate silicate hydrate, collectively, comprise 33% by weight of the corrosion inhibition composition, the molybdate compound comprises 33% by weight of the corrosion inhibition composition, and the silicate compound comprises 33% by weight of the corrosion inhibition composition.

8. The corrosion inhibition composition of claim 1 , wherein the zinc phthalate compound comprises between approximately 0.001% and 5% by weight of the corrosion inhibition composition.

9. The corrosion inhibition composition of claim 1 , wherein the zinc oxide, the zinc phosphate, the calcium silicate, the aluminum phosphate, and the zinc calcium strontium aluminum orthophosphate silicate hydrate, collectively, comprise between 32% and 34% by weight of the corrosion inhibition composition, the molybdate compound comprises between 32% and 34% by weight of the corrosion inhibition composition, and the silicate compound comprises between 32% and 34% by weight of the corrosion inhibition composition.

10. The corrosion inhibition composition of claim 1 , wherein the molybdate compound is at least one of a ZnMoO 4 , CaMoO 4 or MgMoO 4 .

11. The corrosion inhibition composition of claim 1 , wherein the silicate compound is a magnesium silicate compound.

12. The corrosion inhibition composition of claim 1 , wherein the silicate compound is at least one of a MgSiO 3 , ZnSiO 3 or CaSiO 3 .

13. The corrosion inhibition composition of claim 1 , further comprising an application vehicle comprising at least one of an epoxy, a polyurethane, an alkyd, a polysulfide, a silicone, an acrylic, or a butadiene.

14. The corrosion inhibition composition of claim 1 , further comprising a smart release adjunct comprising at least one of nicotinic acid, a salt of nicotinic acid, MgC 2 O 4 , Na 2 WO 4 , CaWO 4 , or a mixture of MgSiO 3 and ZnMoO 4 .

15. The corrosion inhibition composition of claim 1 , wherein the molybdate compound comprises less than 4% by weight sodium.

16. A corrosion resistant coating, comprising;
a corrosion inhibition composition comprising a zinc oxide, a zinc phosphate, a calcium silicate, an aluminum phosphate, a zinc calcium strontium aluminum orthophosphate silicate hydrate, a molybdate compound, a silicate compound, and a zinc phthalate compound; and
an application vehicle.

17. The corrosion resistant coating of claim 16 comprising between 1% and 40% PVC the corrosion inhibition composition.

18. The corrosion resistant coating of claim 16 comprising between 15% and 21% PVC the corrosion inhibition composition.

19. The corrosion inhibition composition of claim 1 , wherein the calcium silicate is calcium silicate (Ca 2 SO 4 ).

20. The corrosion inhibition composition of claim 19 , wherein the aluminum phosphate is aluminum phosphate (AlPO 4 ).

Assignees

• Goodrich Corp

Inventors

• Kryzman Michael A
• Zafiris Georgios S
• Jaworowski Mark R
• Zhang Weilong
• Panza-Giosa Roque
• Manzini Marilea

Classifications

• C08K2003/321

  Phosphates · CPC title

• C08K3/24

  Acids; Salts thereof {(C08K3/16 takes precedence)} · CPC title

• C09D5/084 Primary

  Inorganic compounds · CPC title

• C23F11/08

  in other liquids · CPC title

• C08K13/02

  Organic and inorganic ingredients · CPC title