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Polymer-inorganic nanoparticle compositions, methods for their manufacture and their use as lubricant additives

A technology of inorganic nanoparticles and polymers, used in the fields of improving tribological properties, improving extreme pressure properties and friction reduction rates on metal components, and solving problems such as engine components and bearing corrosion

Active Publication Date: 2022-07-26
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, extreme pressure additives are rarely used in motor oils because the sulfur or chlorine compounds they contain can react with water and combustion by-products to form acids that promote corrosion of engine parts and bearings

Method used

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  • Polymer-inorganic nanoparticle compositions, methods for their manufacture and their use as lubricant additives
  • Polymer-inorganic nanoparticle compositions, methods for their manufacture and their use as lubricant additives
  • Polymer-inorganic nanoparticle compositions, methods for their manufacture and their use as lubricant additives

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preparation example Construction

[0179] Preparation of Polymer Compound (B)

[0180] According to the present invention, the above-mentioned polymers can be prepared according to a method comprising the following steps:

[0181] (a) providing the monomer composition as described above; and

[0182] (b) Initiating free radical polymerization in the monomer composition.

[0183] Standard free radical polymerization is described in detail in Ullmann's Encyclopedia of Industrial Chemistry, sixth edition, among others. In general, polymerization initiators and optionally chain transfer agents are used for this purpose.

[0184] The polymerization can be carried out under standard pressure, reduced pressure or elevated pressure. The polymerization temperature is also not critical. In general, however, it is in the range of -20 to 200°C, preferably 50 to 150°C and more preferably 80 to 130°C.

[0185] Polymerization step (b) can be carried out in oil, diluted or undiluted. If diluted, the amount of the monom...

Embodiment approach

[0198] According to a preferred embodiment of the present invention, the polymer-inorganic nanoparticle composition can be obtained by milling a mixture comprising one or more intercalation compounds (A) and one or more polymer compounds (B),

[0199] wherein the intercalation compound (A) is a nanostructured compound comprising multilayer fullerene-like nanostructures each consisting of a metal chalcogenide and having the formula MX 2 (M=W and X=S), preferably having a spherical shape,

[0200] wherein the one or more polymer compounds (B) can be obtained by polymerizing the following monomer composition comprising:

[0201] a) 1 to 60% by weight, preferably 2 to 50% by weight, more preferably 2 to 40% by weight, most preferably 3 to 35% by weight of said one, based on said one or more polymer compounds (B) or functional monomers as component a); and

[0202] b) 10 to 99% by weight, preferably 20 to 98% by weight, more preferably 30 to 98% by weight, most preferably 35 to ...

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Abstract

The present invention relates to a polymer-inorganic nanoparticle composition and a preparation method thereof. The present invention also relates to additives and lubricant compositions comprising these polymer-inorganic nanoparticle compositions, and to the use of these polymer-inorganic nanoparticle compositions for improving tribological properties in oil lubricant formulations, in particular It is used to improve extreme pressure performance and friction reduction rate on metal parts.

Description

technical field [0001] The present invention relates to polymer-inorganic nanoparticle compositions and methods for their preparation. The present invention also relates to additives and lubricant compositions comprising these polymer-inorganic nanoparticle compositions, and to the use of these polymer-inorganic nanoparticle compositions for improving tribological properties in oil lubricant formulations, in particular It is used to improve extreme pressure performance and friction reduction rate on metal parts. Background technique [0002] The present invention relates to the field of lubrication. Lubricants are compositions that reduce friction between surfaces. In addition to allowing freedom of movement between the two surfaces and reducing mechanical wear of the surfaces, the lubricant may inhibit corrosion of the surfaces and / or may inhibit damage to the surfaces due to heat or oxidation. Examples of lubricant compositions include, but are not limited to, engine oi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00C10M171/06C08F292/00C08F290/04C08L55/00
CPCC08F290/048C10M161/00C10M171/06C08L55/005C10M2201/062C10M2201/065C10M2201/066C10M2203/1025C10M2205/04C10M2209/04C10M2209/062C10M2209/084C10M2209/086C10M2213/02C10M2213/04C10M2217/023C10M2217/024C10M2217/026C10M2217/028C10M2221/02C10M2225/02C10M2229/00C10N2010/14C10N2010/10C10N2020/04C10N2010/08C10N2020/055C10N2010/12C10N2020/06C10N2030/04C10N2030/68C10N2040/04C10N2010/02C10N2030/06C10N2010/04C08F136/06C08C19/44C08C19/04C08C19/02C08C19/38C08C19/28C08F220/1812C08F220/1818B82Y30/00B82Y40/00C08F265/06C08L51/003C10N2010/16C08K2003/3009C10N2020/02C08F220/60C08F220/14C08F220/1804C08F212/08C08F220/54C08L91/00C08F2/44C08K3/013C08K3/30C10M2201/041C10M2201/061C10M2201/105C10M125/22C10M149/06C10M169/044C10M2203/003C10N2030/08
Inventor S·威博C·P·克朗斯纳布R·桑德亚雅S·斯拉克D.·奈斯R·沃肯斯G·施米特C·M·图尔汗
Owner EVONIK OPERATIONS GMBH
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