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Aliphatic dicarboxlic acid mixture formulation

a technology of aliphatic dicarboxic acid and mixture formulation, which is applied in the direction of lubricant composition, other chemical processes, chemistry apparatus and processes, etc., can solve the problems of strong and unpredictable influence on the properties and effectiveness of final use formulations

Inactive Publication Date: 2015-10-22
INVISTA NORTH AMERICA R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is related to a new composition that can prevent corrosion of metal. The composition includes a mixture of diacids, water, and a specific type of organic amine that can dissolve in water. When this composition is applied to metal, it can protect it from corrosion. The technical effect of this patent is to provide a new and effective way to prevent corrosion of metal in various applications.

Problems solved by technology

The composition of a mixture of various diacids can have a strong and unpredictable influence on the properties and effectiveness of final use formulations in specific applications.

Method used

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Examples

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example 1

[0035]Sebacic acid and dodecanedioic acid (DDDA) are commercial diacids used as corrosion inhibitors in water-based, metal-working fluid formulations. “Ozone diacid” is a mixture of C9 to C13 diacids recovered from the oxidative cleavage of unsaturated fatty acids or unsaturated fatty acid esters with ozone and oxidative workup. “Nitric diacid” is a mixture of C8 to C12 diacids recovered from the reaction of a mixture of cyclododecanol and cyclododecanone with nitric acid. A C11 diacid sample was prepared through oxidative cleavage of fatty acids or fatty acid esters.

[0036]Blends 1 and 2 were obtained by combining the ozone diacid mixture with DDDA. Blend 3 was obtained by combining the ozone diacid mixture with DDDA and adipic acid. Blends 4 and 5 were obtained by combining the ozone diacid mixture with the nitric diacid mixture. Blend 6 was obtained by combining the ozone diacid mixture, the nitric diacid mixture, and DDDA together. Blend 7 was obtained by combining the C11 diacid...

example 2

[0037]The ASTM standard test method for iron chip corrosion for water-dilutable metalworking fluids, D4627-92, was utilized to compare the properties of Blends 1-7 with those of the commercial diacids, sebacic acid and DDDA. The metalworking fluid concentrates were prepared by dissolving the diacid or diacid mixture in an aqueous solution containing water, monoethanolamine, and triethanolamine. Each metalworking fluid concentrate was then diluted with water at either a water hardness of 100 ppm or 500 ppm (as CaCO3), according to the method. Then the breakpoints (concentration of the diacid or diacid mixture required to inhibit corrosion) were determined. A hard water stability test at 500 ppm was also performed for each metalworking fluid concentrate. The formation of a visible precipitate indicated hard water instability—an undesired result. The data from these tests are compiled in Table 3.

TABLE 3MeasuredSebacicOzonePropertyAcidDDDRDiacidBlend 1 Blend 2Blend 3Blend 4Blend 5Blend ...

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Abstract

A novel mixture composition comprising various aliphatic dicarboxylic acids is provided. Further, a composition comprising the aliphatic dicarboxylic acid mixture composition, water and at least one water-soluble organic amine is provided. Further, a method for inhibiting corrosion of metal surfaces comprising contacting the metal with the composition comprising the aliphatic dicarboxylic acid mixture composition as above, water and at least one water-soluble organic amine is provided.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims benefit of priority from U.S. Provisional Application No. 61 / 692,042 filed Aug. 22, 2012, U.S. Provisional Application No. 61 / 728,529 filed on Nov. 20, 2012 and U.S. Provisional Application No. 61 / 731,148 filed on Nov. 29, 2012. These applications hereby incorporate by reference these applications in their entirety.FIELD OF THE INVENTION[0002]This invention relates to a novel mixture composition comprising various aliphatic dicarboxylic acids (diacids) in particular amounts. The invention further relates to a composition which comprises the novel mixture composition comprising various diacids in particular amounts, water and at least one water-soluble organic amine, and a method for use thereof.BACKGROUND OF THE INVENTION[0003]Diacids are generally useful in polymer and corrosion inhibitor formulations, and can be esterified to produce diesters for use in solvent, cleaning, and lubricating oil formulations. These di...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C23F11/14
CPCC23F11/141C09K5/10C10M173/02C23F11/04C23F11/06C23F11/08C23F11/10C23F11/126C23G1/02C10M2207/123C10M2207/127C10M2215/042C10M2215/202C10N2030/12
Inventor GARNER, JAMES MICHAELSHEN, JIANSMIT, DENIS JOHNSULLIVAN, EDWARD A.
Owner INVISTA NORTH AMERICA R L
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