Classifications

• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
  • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
  • C10M137/04—Phosphate esters
  • C10M137/08—Ammonium or amine salts
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
  • C10M2223/04—Phosphate esters
  • C10M2223/043—Ammonium or amine salts thereof
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2040/00—Specified use or application for which the lubricating composition is intended
  • C10N2040/20—Metal working
  • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling

Definitions

• Coolants that are not miscible with water are mineral oils or synthetic oils with or without additives. Cooling lubricants containing active ingredients are also referred to as "alloyed cooling lubricants”.
• Non-water-miscible cooling lubricants serve, for example, to improve the lubricity, wear behavior, corrosion protection, aging resistance and foam behavior.
• the type and amount of additives used depend on the severity of the respective area of application.
• Non-water-miscible cooling lubricants are characterized above all by their good ability to be scratched and good pressure absorption capacity.
• solid-state contact between workpiece and tool occurs in the area of mixed friction in practically all cases. The roughness peaks determine the friction behavior and wear of the friction partners located in the mixed friction area. Direct metal contact in these zones can result in very high temperatures, which can lead to welding and tearing of particles from the metal structure.
• the points of contact and thus heated due to the friction of the surface of the friction partners change and form so-called chemical reaction layers that have more favorable mechanical properties.
• the group of EP additives includes chemical compounds that contain chlorine, phosphorus or sulfur as an effective element. Due to high friction temperatures, metal soaps, metal chloride films, metal phosphite or metal phosphate films and metal sulfide films form on the metal surfaces, which form readily adhering, easily shearable reaction layers at the contact points. The reaction layers formed are effective until they are melted by an increase in temperature as a result of frictional heat. The reactivity of these additives is therefore temperature-dependent, so that very specific temperature action ranges can be assigned to the different additives. Fats cover the lower temperature range.
• Chlorine-containing additives work in a temperature range from approx. 180 ° C to 620 ° C, phosphorus-containing additives are assigned a temperature action range from 240 ° C to 900 ° C. Sulfur additives cover the upper temperature range from approx. 530 ° C to over 1000 ° C.
• Phosphoric acid esters as EP components are also described in the following patents: US 2,391,631, US 4,693,839, US 2,285,853, US 4,769,178,
• EP-A-146140B1 describes the use of acidic
• Phosphoric acid monoestem as a lubricating component.
• Phosphoric acid esters as EP additives.
• the group of chlorine-containing additives mainly the highly effective chlorinated paraffins, are a widely used additive group. Due to ecological and toxicological concerns, the Oslo and Paris Commission issued a ban on the use of short-chain chlorinated paraffins from 1999 onwards.
• the invention thus relates to the use of mixtures of one or more phosphoric acid esters of the formula (I) with one or more amines of the formula (II)
• R 1 is a hydrogen atom or a C 1 -C 20 alkyl
• C 2 is preferably - C 13 alkyl group, a C 2 -C 2 o-alkenyl, C 2 -C 13 alkenyl group, preferably, an optionally by C r C 5 -Alkyl or C 1 -C 5 -alkanol-substituted C 6 -C 10 aryl group or an alkyl / aryl polyethylene glycol ether group with up to 18 C atoms, preferably with 12 to 18 C atoms
• R 2 is a C ⁇ C ⁇ alkyl group , preferably C 2 -C 13 alkyl group, a C 2 -C 20 alkenyi group, preferably C 2 - C 13 alkenyl group, a C 6 -C 10 aryl group optionally substituted by C r C 5 alkyl or C r C 5 alkanol, or an alkyl / aryl poly
• the mixtures used are either a combination of amine and a compound of formula (I) with different radicals R 1 and R 2 , or a combination of amine and several compounds of formula (I), where, if in one compound of the formula (I) R 1 and R 2 are the same, then in another compound of the formula (I) the radicals R 1 and R 2 must be different. In any case, there must be a total of two different residues in the phosphorus compounds.
• Hydroxyalkyl groups are, for example, monoethanolamine, diethanolamine or triethanolamine, the term amines also includes diamines.
• the amine used for neutralization depends on the phosphoric acid esters used.
• R 1 is hydrogen, a butyl or ethylene glycol group and R 2 is a butyl or ethylene glycol group are also very suitable, and where R 1 is not equal to R 2 in at least one phosphoric acid ester of the formula (I).
• the EP additive according to the invention can be incorporated into the respective base liquid as a solubilizer with the aid of fatty substances (eg tall oil fatty acid, oleic acid, etc.).
• the base liquids used are naphthenic or paraffinic base oils, synthetic oils (e.g. polyglycols, mixed polyglycols), polyolefins, carboxylic acid esters, etc.
• Chlorparaffin ® Hordaflex SP chain length C14-C17 chlorine content: approx. 56% (m / m)
• Esterification component 1 5 T.
• Recipes 2 to 6 according to the invention: Recipe 2: 9 T. phosphoric acid mono- / diester with butanol / glycol as
• Esterification component 11 T. Di- (2-ethylhexyl) amine 20 T. fat 60 T. naphthenic mineral oil Recipe 3: 5 T. basic recipe 20 T. fat 75 T. naphthenic mineral oil
• the lubricant is checked in a four-ball system.
• three balls standing balls
• the fourth ball running ball
• the ball cup filled with lubricant is operated with a certain force by means of a lever pressed against the fourth sphere, the four spheres are arranged in a pyramid shape so that the three Contact points of the ball-with the fixed balls at increasing load, the Hertz 'sche surface pressure and thus the demands on the lubricant increases.
• Rolling bearing steel 100 Cr 6 with a hardness of approx. 63 HRC is used as the ball material.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Lubricants (AREA)

Applications Claiming Priority (3)

Publications (1)

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Country Status (7)

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• 1997
  • 1997-03-12 DE DE19710160A patent/DE19710160A1/de not_active Ceased
• 1998
  • 1998-03-04 HU HU0001588A patent/HUP0001588A3/hu unknown
  • 1998-03-04 PL PL33561598A patent/PL187948B1/pl not_active IP Right Cessation
  • 1998-03-04 JP JP53916098A patent/JP2001514689A/ja active Pending
  • 1998-03-04 WO PCT/EP1998/001196 patent/WO1998040451A1/de not_active Application Discontinuation
  • 1998-03-04 EP EP98913630A patent/EP0968260A1/de not_active Withdrawn
  • 1998-03-11 US US09/038,561 patent/US6103675A/en not_active Expired - Fee Related

Non-Patent Citations (1)

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