Corrosion inhibitor
View Patent ↗A liquid corrosion inhibitor comprising a primary, secondary, tertiary or mixed amine complexing agent and a carboxylic acid complexing agent, and may further contain a pH adjusting agent and an antifreeze agent, which is capable of providing both short-term and long-term corrosion protection on ferrous and non-ferrous metal substrates and protection from flash rusting commonly associated with ferrous metal substrates, without adversely affecting high gloss in coatings.
1. A paint mixture containing a chemical composition that inhibits corrosion in metal substrates when applied thereto, said chemical composition comprising:
a first complexing agent comprising an amine group; and
a second complexing agent comprising a carboxylic acid;
wherein the first complexing agent is an alkylamine selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine.
2. The paint mixture of claim 1 , wherein the alkylamine is 3-methoxypropylamine.
3. The paint mixture of claim 1 , wherein the alkylamine is 4-ethylmorpholine.
4. The paint mixture of claim 1 , wherein the alkylamine is dimethylaminopropylamine.
5. The paint mixture of claim 1 , wherein said second complexing agent is benzoic acid.
6. The paint mixture of claim 1 , further comprising a pH adjusting agent.
7. The paint mixture of claim 6 , wherein said pH adjusting agent is ammonium hydroxide.
8. The paint mixture of claim 1 , wherein said first complexing agent and said second complexing agent react to form a stable aminocarboxylate salt.
9. A paint mixture containing a corrosion inhibiting chemical composition compnsing:
water;
an amine complexing agent;
a carboxylic acid complexing agent; and
a pH adjusting agent;
wherein said amine complexing agent is selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine; and
wherein the paint mixture inhibits the corrosion of metal when applied to a metal substrate.
10. The paint mixture of claim 9 , wherein said carboxylic acid complexing agent is benzoic acid.
11. The paint mixture of claim 9 , wherein said pH adjusting agent is ammonium hydroxide.
12. The paint mixture of claim 9 , wherein said chemical composition comprises approximately 50-80% by total formula weight water, approximately 2-20% by total formula weight amine complexing agent, approximately 5-20% by total formula weight carboxylic acid complexing agent, and approximately 5-7% by total formula weight pH adjusting agent.
13. A process of producing a paint mixture containing a corrosion inhibitor comprising the steps of:
mixing together water and an amine complexing agent to create a first substance, wherein the amine complexing agent is an alkylamine selected from the group consisting of 3-methoxypropylamine 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine;
mixing together said first substance with a carboxylic acid complexing agent to create a second substance;
mixing together said second substance with a pH adjusting agent to create said corrosion inhibitor; and
incorporating the corrosion inhibitor into the paint mixture;
wherein the paint mixture inhibits the corrosion of metal when applied to a metal substrate.
14. The process of claim 13 , wherein said carboxylic acid complexing agent is benzoic acid.
15. The process of claim 13 , wherein said pH adjusting agent is ammonium hydroxide.
16. The process of claim 13 , wherein said chemical composition comprises approximately 50-80% by total formula weight water, approximately 2-20% by total formula weight amine complexing agent, approximately 5-20% by total formula weight carboxylic acid complexing agent, and approximately 5-7% by total formula weight pH adjusting agent.
17. A process of making a paint mixture containing a non-toxic corrosion inhibitor comprising the steps of providing in the paint mixture a non-toxic corrosion inhibitor comprising approximately 50-80% by total formula weight of water and adding approximately 2-20% by total formula weight of an amine complexing agent, approximately 5-20% by total formula weight of a carboxylic acid complexing agent, and approximately 5-7% by total formula weight of a pH adjusting agent, wherein said amine complexing agent is selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine; wherein the paint mixture inhibits the corrosion of metal when applied to a metal substrate.
18. The process of claim 17 , further comprising the step of mixing said approximately 50-80% by total formula weight of water, 2-20% by total formula weight of said amine complexing agent, 5-20% by total formula weight of said carboxylic acid complexing agent, and 5-7% by total formula weight of said pH adjusting agent to create an aqueous mixture for incorporation into the paint mixture.
19. The process of claim 17 , wherein said carboxylic acid complexing agent is benzoic acid.
20. The process of claim 18 , further comprising the steps of:
transferring said aqueous mixture to a holding tank; and allowing said mixture to cool to room temperature prior to incorporation into the paint mixture.
21. A paint mixture, containing a chemical composition that inhibits corrosion in metal substrates, said chemical composition comprising:
a first complexing agent comprising an amine group; and
a second complexing agent comprising a carboxylic acid;
wherein the first complexing agent is an alkylamine selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine;
wherein the paint mixture, when applied to a metal substrate, inhibits flash rusting of the metal.
22. The paint mixture of claim 1 , wherein said paint mixture further includes a high gloss resin and wherein the chemical composition does not diminish the gloss.
23. The paint mixture of claim 1 , wherein said paint mixture further includes a semi gloss resin and wherein the chemical composition does not diminish the gloss.
24. A process of producing a paint mixture containing a corrosion inhibitor comprising the steps of:
mixing together water and an amine complexing agent comprising an alkylamine to create a first substance, wherein the alkylamine is selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmornholine;
mixing together said first substance with a carboxylic acid complexing agent to create said corrosion inhibitor; and
incorporating the corrosion inhibitor into the paint mixture;
wherein the paint mixture inhibits the corrosion of metal when applied to a metal substrate.
25. A process of making a paint mixture containing a non-toxic corrosion inhibitor comprising the steps of providing in the paint mixture a non-toxic corrosion inhibitor comprising approximately 50-80% by total formula weight of water and adding approximately 2-20% by total formula weight of an amine complexing agent comprising an alkylamine selected from the group consisting of 3-methoxypropylamine, 4-ethylmorpholine, dimethylaminopropylamine and aminopropylmorpholine and approximately 5-20% by total formula weight of a carboxylic acid complexing agent; wherein the paint mixture inhibits the corrosion of metal when applied to a metal substrate.
26. The paint mixture of claim 1 , wherein the alkylamine is aminopropylmorpholine.