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Lubricating grease composition and manufacturing method therefor

A manufacturing method and technology of lubricating grease, applied in the direction of lubricating composition, thickener, base material, etc., can solve the problems of poor corrosion resistance, expensive, poor compatibility, etc., achieve excellent shear stability, realize cost, Effect of improving wear resistance

Active Publication Date: 2011-09-14
NOK KLUEBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since both the base oil and the thickener are fluorine-based, they are not only expensive but also have poor compatibility with resins, metals, rubber, etc., which are used as lubricating materials. Or the coefficient of friction becomes higher, so it can be seen that the transmission efficiency of the torque is deteriorated or the rust resistance and corrosion resistance are poor.

Method used

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  • Lubricating grease composition and manufacturing method therefor

Examples

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Embodiment

[0065] Hereinafter, the present invention will be described with reference to examples.

reference example 1

[0067] In poly-α-olefin oil (40°C viscosity: 30mm 2 / second), synthesize the barium complex soap of sebacic acid and sebacic acid monostearyl amide that accounts for 30% by weight in the base grease as a thickener by the method (a-1) as described above, to Grease A was prepared by adding 2% by weight of an amine-based antioxidant (NA-LUBE AO-120, manufactured by KING INDUSTRIES; alkyldiphenylamine), and kneading twice with a three-roll mill.

reference example 2

[0069] In poly-alpha-olefin oil (viscosity at 40°C: 46mm 2 / sec), the barium complex soap of azelaic acid and azelaic acid monooctylamide that accounts for 25% by weight in the base grease is synthesized as a thickener by the method (a-1) as described above, adding 3% by weight of trimethylolpropane alkyl ester (40°C viscosity: 30mm 2 / sec) and 2% by weight of amine antioxidant (NA-LUBE AO-120), kneaded twice with a three-roll mill to prepare grease B.

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Abstract

Disclosed is a lubricating grease composition that includes a composite metal soap thickener of aliphatic dicarboxylic acid and monoamide monocarboxylic acid, and a fluorine resin powder in a base oil mixture comprised of a non-fluorine series base oil and a fluorine series base oil which are mutually incompatible. This lubricating grease composition is manufactured by kneading, preferably with a three-roll mill, a non-fluorine series grease which is prepared by heating and agitating a non-fluorine series base oil, aliphatic dicarboxylic acid, and monoamide monocarboxylic acid, and adding a metal hydroxide thereto to form a composite metal soap in the non-fluorine series base oil, and a fluorine series grease which is prepared from a fluorine series base oil and a fluorine resin powder.

Description

technical field [0001] The present invention relates to a grease composition and a method for its manufacture. More specifically, it relates to a used grease composition and a method for producing the same, wherein the base oil mixture is formed of a non-fluorine-based base oil and a fluorine-based base oil that are incompatible with each other. Background technique [0002] Existing fluorine-based greases use perfluoropolyether oil as base oil, tetrafluoroethylene homopolymer [PTFE] or tetrafluoroethylene-hexafluoropropylene copolymer [HFP] as thickener, and add These are composed of small amounts of additives such as rust inhibitors, and are used under severe conditions that require low-temperature characteristics, high-temperature durability, oxidation stability, and chemical resistance. [0003] However, since both the base oil and the thickener are fluorine-based, they are not only expensive but also have poor compatibility with resins, metals, rubber, etc., which are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00C10M105/18C10M107/02C10M107/38C10M117/02C10M117/06C10M147/00C10M177/00C10N10/04C10N30/00C10N30/08C10N30/10C10N40/00C10N40/02C10N40/04C10N40/08C10N40/14C10N50/10C10N70/00
CPCC10M2207/283C10M2205/0206C10M2207/0406C10M2207/1285C10N2270/00C10N2240/202C10M2207/1276C10N2240/04C10M169/02C10M2215/064C10N2230/06C10M2207/1236C10M2213/0606C10M2213/0626C10N2230/08C10M2205/0285C10N2240/02C10N2230/68C10N2250/10C10M2215/0813C10N2030/06C10N2030/08C10N2040/02C10N2040/04C10N2050/10C10N2070/00C10N2030/68C10N2040/17C10N2010/02C10N2010/04
Inventor 菱沼健桥本达也新田敏夫
Owner NOK KLUEBER CO LTD
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