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Lubricating oil and uses thereof

a technology of lubricating oil and composition, which is applied in the direction of refrigeration components, nuclear engineering, light and heating apparatus, etc., can solve the problems of not taking into account high temperature, and achieve the effects of improving viscosity index, extreme pressure resistance, and corrosion inhibition

Inactive Publication Date: 2014-10-16
SHRIEVE CHEM PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

This patent describes a lubricant that includes a specific type of oil and up to 5% of additives that improve its properties. These additives can improve things like wear resistance, pressure resistance, oxidation stability, corrosion inhibition, foam suppression, and more. The result is a better quality lubricant that performs better in a variety of situations.

Problems solved by technology

Similarly, it does not take account of the high temperature lubricant properties with respect to ensuring that they are suitable for the maximum system temperature encountered.

Method used

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Examples

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examples

[0046]Examples of the linear alkylbenzene oils of the present disclosure are given as follows:

[0047]Sample 001: A linear chain alkylbenzene (LAB) with an average alkyl chain length of 9.51 carbon atoms and an average molecular weight of 211.50 g / mol.

[0048]Sample 002: A linear alkylbenzene (LAB) with an average alkyl chain length of 8.46 carbon atoms and an average molecular weight of 196.82 g / mol.

[0049]Sample 003: A linear alkylbenzene (LAB) with an average alkyl chain length of 8.04 carbon atoms and an average molecular weight of 190.92 g / mol.

[0050]The specific C distribution of the 3 examples is given in Table 1.

TABLE 1LAB Linear total AlkylbenzeneSample Sample Sample carbonmol. wt001002003atoms(g / mol)(%) (%) (%)C11148.240.000.100.00C12162.260.000.120.00C13176.280.000.180.00C14190.300.0052.8796.04C15204.3250.3646.203.55C16218.3448.340.510.34C17232.361.010.020.02C18246.380.280.000.05C19260.400.010.000.00Number Average (Mn)211.50196.82190.92Mol. Wt (g / mol):Average alkyl (C) chain9.5...

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Abstract

Herein disclosed is a lubricant oil or lubricant for the compressor of a refrigeration system which operates with a refrigerant comprising at least one component of the hydrocarbon (HC) group of refrigerants, (a) whereby the lubricant consists of at least 85 weight % of alkylbenzene having an average molecular weight of ≧160 g / mol and exhibiting a viscosity of 2.2-3.0 centistokes (cSt) at 40 deg C.; optionally wherein the alkylbenzene consists of at least 85 wt % of linear (straight chain) alkylbenzene, having an average molecular weight of ≧160 g / mol and exhibiting a viscosity of 2.2-3.0 centistokes (cSt) at 40 deg C.; (b) or alternatively whereby the lubricant consists of at least 85 weight % of alkylbenzene having an average molecular weight of ≧190 g / mol and having a viscosity of 2.5-3.5 cSt at 40 deg C.; optionally wherein the alkylbenzene consists of at least 85 wt % of linear (straight chain) alkylbenzene, having an average molecular weight of ≧190 g / mol and exhibiting a viscosity of 2.5-3.5 centistokes (cSt) at 40 deg C.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit under 35 U.S.C. §119(e) of U.S. Provisional Patent application No. 61 / 810,800 filed Apr. 11, 2013, the disclosure of which is hereby incorporated herein by reference.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.BACKGROUND[0003]1. Field of the Invention[0004]This invention relates generally to lubricating oil composition and uses thereof. In particular, this invention discusses low viscosity lubricating oil, suitable in applications such as in a refrigeration machine that utilizes a hydrocarbon based refrigerant.[0005]2. Background of the Invention[0006]The use of hydrocarbon refrigerants R600a [iso-butane, CH(CH3)2CH3] and R290 (propane, CH3CH2CH3) as replacements for HCFC [hydrochlorofluorocarbon] and HFC [hydrofluorocarbon] compounds is expanding due to both hydrocarbon refrigerants having negligible global warming potential and an ozone depletion potential (ODP)...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M105/06
CPCC10M105/06C10M171/008C10M2205/223C10N2020/04C10N2020/011C10N2020/017C10N2020/02C10N2020/103C10N2030/28C10N2030/06C10N2040/30G21H1/00H05H5/04
Inventor DIXON, ELIZABETH
Owner SHRIEVE CHEM PRODS
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