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Imidazolinum salts with low melting points, method for their manufacture and their use as lubricant

An imidazolinium salt and imidazolinium technology are applied in the field of novel low-melting imidazolinium salts and their preparation, and can solve problems such as dangerous discharge

Inactive Publication Date: 2009-07-01
TH GOLDSCHMIDT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the filtration step, especially at low temperatures, all of the aforementioned lubricants are statically charged, which can lead to dangerous discharges

Method used

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  • Imidazolinum salts with low melting points, method for their manufacture and their use as lubricant
  • Imidazolinum salts with low melting points, method for their manufacture and their use as lubricant
  • Imidazolinum salts with low melting points, method for their manufacture and their use as lubricant

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Embodiment

[0127] In the examples given below, the present invention is described by way of example, and the present invention is not limited to the embodiments specifically illustrated in the examples, and its scope of applicability is determined by the specification and claims.

[0128] All percentages are by weight unless otherwise indicated.

[0129] General preparation of imidazolinium salts without isolation of intermediates (Formula I)

[0130] Initially, at N 2 Next, 1.75 mol of aminoethylethanolamine (AEEA) and 0.01 mol of 30% sodium methoxide were charged into a four-neck glass flask. At 70°C, add 1 mol of the specific carboxylate within 1.5h. This process is accompanied by a slight exotherm, and the temperature should not exceed 90°C. Amidation takes place within 6 to 10 h. For monitoring, infrared spectra were recorded at 1740 nm. Sufficient alkalinity (>2mgKOH / g) must be ensured. Upon completion of the amidation, the alkalinity was neutralized with 85% phosphoric acid, ...

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Abstract

The invention relates to novel imidazolinium salts, to processes for preparation thereof and to the use of the imidazolinium salts or of a mixture of imidazolinium salts with further (lubricating) substances as lubricants.

Description

technical field [0001] The present invention relates to a novel low-melting imidazolinium salt (imidazolinium salt) and a preparation method thereof. The invention further relates to the use of these substances as base oils or additives in lubricants. Background technique [0002] Lubricants are used for lubrication and to reduce friction and wear, and also for force transmission, cooling, vibration damping, sealing and corrosion protection. [0003] During any movement, there is relative motion between parts and the resulting friction between surfaces. Therefore, in order to minimize energy loss and wear, lubricants must be applied between moving parts. To achieve lubrication, mineral oils, poly-alpha-olefins, natural oils such as rapeseed oil, synthetic ester oils and low viscosity polyethylene glycols are commonly used. [0004] Lubricating oils are the most important industrial lubricants. They are used to reduce friction which causes noise and especially wear of mat...

Claims

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Application Information

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IPC IPC(8): C07D233/20C10M105/70C10M133/58
CPCC10N2240/04C10N2240/08C10M2215/224C10N2230/06C10M133/46C07D233/06C07D233/14C10M2205/0285C10N2240/10C10M2203/1006C10N2030/06C10N2040/04C10N2040/25C10N2040/08
Inventor P·施瓦布H-J·克勒T·萨洛蒙K·黑尔
Owner TH GOLDSCHMIDT AG