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CN-122029260-A - Metal working fluid compositions comprising 3-amino-3-methyl-2-butanol and uses thereof

CN122029260ACN 122029260 ACN122029260 ACN 122029260ACN-122029260-A

Abstract

The present technology relates generally to metalworking fluid compositions comprising 3-amino-3-methyl-2-butanol. For example, the inclusion of 3-amino-3-methyl-2-butanol in a metalworking fluid having a pH of at least about 7 may enhance the lubricating, cleaning, and/or handling properties of the metalworking fluid by providing multi-metal corrosion inhibition, maintaining pH control, and/or stabilizing the metalworking fluid.

Inventors

  • K. Havelka
  • D. Buffier
  • J. Quinn
  • A. Xifu

Assignees

  • 安达伟胜股份有限公司

Dates

Publication Date
20260512
Application Date
20240916
Priority Date
20230927

Claims (20)

  1. 1. A metal working fluid comprising 3-Amino-3-methyl-2-butanol, and About 0.1 wt% or more of water.
  2. 2. The metalworking fluid of claim 1, wherein the metalworking fluid further comprises a base oil.
  3. 3. The metalworking fluid of claim 2, wherein the metalworking fluid comprises about 10 wt% to about 50 wt% base oil.
  4. 4. The metalworking fluid of claim 1, wherein the metalworking fluid comprises from about 0.01 wt% to about 20 wt% 3-amino-3-methyl-2-butanol.
  5. 5. The metalworking fluid of claim 1, wherein the metalworking fluid comprises from about 0.01 wt% to about 10 wt% 3-amino-3-methyl-2-butanol.
  6. 6. The metalworking fluid of claim 1, wherein the metalworking fluid is a soluble oil, semi-synthetic or synthetic.
  7. 7. The metal working fluid of claim 1, wherein the base oil comprises a petroleum oil, a hydrotreated naphthenic oil, a hydrotreated paraffinic oil, a synthetic hydrocarbon, a polyalphaolefin, a polyethylene glycol block copolymer, a vegetable oil, a hydrotreated vegetable oil, a complex ester, a polyol ester, a re-refined base oil, or a combination of any two or more thereof.
  8. 8. The metalworking fluid of claim 1, wherein the metalworking fluid further comprises an emulsifier, a corrosion inhibitor, a biocide, a neutralizing agent, or a combination of any two or more thereof.
  9. 9. The metalworking fluid of claim 8 wherein the metalworking fluid comprises a nonionic emulsifier.
  10. 10. The metalworking fluid of claim 9, wherein the nonionic emulsifier comprises an ethoxylated alcohol, an alkanolamide, an ester, or a combination of any two or more thereof.
  11. 11. The metalworking fluid of claim 8 wherein the metalworking fluid comprises an anionic emulsifier.
  12. 12. The metalworking fluid of claim 11, wherein the anionic emulsifier comprises sodium sulfonate, fatty acid salts, succinic anhydride salts, polymeric emulsifiers, or a combination of any two or more thereof.
  13. 13. The metalworking fluid of claim 12, wherein the polymeric emulsifier comprises polyethylene glycol.
  14. 14. The metalworking fluid of claim 8, wherein the metalworking fluid comprises a corrosion inhibitor comprising one or more of a phosphate ester, sodium sulfonate, thiadiazole, alkanolamide, amino alcohols other than 3-amino-3-methyl-2-butanol ("other amino alcohols"), 3-amino-3-methyl-2-butanolate, other amino alkoxides, tall Oil Fatty Acid (TOFA), dibasic acid, or a combination of any two or more thereof.
  15. 15. The metal working fluid of claim 8 wherein the metal working fluid comprises a biocide comprising a mixture of biocidal compounds that exhibit antibacterial and antifungal effects.
  16. 16. The metalworking fluid of claim 1, wherein the metalworking fluid is a concentrate to be diluted with water to about 1% to about 20% by volume of its original concentration.
  17. 17. The metalworking fluid of claim 1, further comprising one or more additives selected from the group consisting of colorants, viscosity modifiers, lubricants, buffers, antioxidants, coupling agents, defoamers, antifogging agents, or a combination of any two or more thereof.
  18. 18. The metalworking fluid of claim 1 further comprising a neutralizing agent.
  19. 19. The metalworking fluid of claim 18, wherein the neutralizing agent comprises one or more of a metal hydroxide, an alkyl amine, or other amino alcohol.
  20. 20. The metalworking fluid of claim 18, wherein the neutralizing agent comprises one or more of Monoisopropanolamine (MIPA), diglycolamine (DGA), MEA (monoethanolamine), TEA (triethanolamine), 2-amino-2-methyl-1-propanol (AMP), 2-amino-1-butanol (2 AB), 2-amino-2-ethyl-1, 3-propanediol (AEPD), methyldiethanolamine (MDEA), TRIS (hydroxymethyl) aminomethane (TRIS), dicyclohexylamine (DCHA), 3-amino-4-octanol (3A 4O), or a combination of any two or more thereof.

Description

Metal working fluid compositions comprising 3-amino-3-methyl-2-butanol and uses thereof Cross Reference to Related Applications The present application claims the benefit and priority of U.S. provisional application No. 63/540,850, filed on 9/27 of 2023, which provisional application is incorporated herein by reference in its entirety for any and all purposes. Technical Field The present technology relates generally to metalworking fluid compositions comprising 3-amino-3-methyl-2-butanol, which may be used in various metalworking operations (e.g., cutting, grinding, drilling, turning, milling, machining, drawing, stamping, forming, rolling, cleaning, protecting, etc.) of various metals. For example, the inclusion of 3-amino-3-methyl-2-butanol in a metalworking fluid having a pH of at least about 7 may enhance the lubrication, cleaning and handling properties of the metalworking fluid by providing multi-metal corrosion inhibition, maintaining pH control and stabilizing the metalworking fluid. Background Many common metalworking fluids are made from compositions using chemicals that are typically derived from non-renewable raw materials such as petroleum. For example, in addition to the petroleum fractions in pure oils and semi-synthetic metalworking fluids, surfactants in metalworking fluids are also commonly derived from petroleum sources, including neutralizing agents for neutralizing the acid groups present in the composition. The use of non-renewable petroleum-based feedstocks results in excessive reliance on fossil fuels. This reliance on non-renewable petroleum-based feedstocks results in environmental exacerbations such as air pollution, water pollution, and global warming. In addition, these fossil fuels are often supplied from politically unstable regions of the world, often leading to humane concerns. Thus, as noted above and as explained in more detail below, there remains a need for compositions for common metalworking fluids made from natural, renewable starting materials that can provide comparable or better performance than existing products. Disclosure of Invention The present disclosure relates to compositions of metalworking fluids for various metalworking operations (e.g., cutting, grinding, drilling, turning, milling, machining, drawing, stamping, forming, rolling, cleaning, and protecting, etc.) of various metals (e.g., aluminum, steel, and copper), wherein such compositions comprise 3-amino-3-methyl-2-butanol (also known as 3-amino-3-methylbutan-2-ol; CAS No. 13325-14-9). 3-amino-3-methyl-2-butanol has several advantages, including its improved sustainability characteristics, in that it can be manufactured as a renewable bio-based compound (i.e., independent of non-renewable petroleum-based feedstocks), and its low toxicity (providing a safer alternative with reduced environmental and health impact), while providing comparable or superior performance compared to petroleum-based alternatives and superior performance compared to existing renewable alternatives (e.g., NH 3, naOH). Thus, the techniques of the present disclosure overcome common adoption obstacles associated with renewable chemicals, such as poor performance and high cost, whereas the techniques of the present disclosure provide a high performance, cost-effective solution with the potential to integrate bio-based carbon. Brief Description of Drawings FIG. 1 illustrates cobalt leaching control using 3-amino-3-methyl-2-butanol ("AMB" of the present technology), 2-amino-2-methyl-1-propanol ("AMP"), monoisopropanolamine ("MIPA"), and monoethanolamine ("MEA") according to a working example. Figure 1 illustrates that AMB was found to provide significantly better cobalt leaching control compared to MIPA and MEA, and that AMB provided comparable cobalt leaching control compared to AMP. Fig. 2 illustrates the control of staining of metalworking fluids including AMB, MIPA and MEA according to an operational embodiment. As shown in fig. 2, AMB exhibited lower staining and less corrosion than AMP and MEA. Fig. 3 shows the results of iron corrosion of an exemplary metalworking fluid containing AMB, AMP or MEA, evaluated at a concentration of 3.0-4.5% by modified IP287, CICT (cast iron filings test) according to a working example. AMB was found to provide comparable or better performance than AMP. Fig. 4 shows the results of evaluating the percentage of emulsifier in the semi-synthetic wiredrawing fluid versus the surface tension according to the working example. It was found that semi-synthetic wiredrawing fluid compositions comprising AMB required less emulsifier to achieve similar surface tension than those comprising AMP. Detailed Description The following terms are used herein as defined below. As used herein and in the appended claims, the singular forms "a," "an," "the," and similar referents in the context of describing elements (especially in the context of the following claims) are to be construed to cover both the singular and t