EP1926805A1 - Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides - Google Patents

Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides

Info

Publication number
EP1926805A1
EP1926805A1 EP06775933A EP06775933A EP1926805A1 EP 1926805 A1 EP1926805 A1 EP 1926805A1 EP 06775933 A EP06775933 A EP 06775933A EP 06775933 A EP06775933 A EP 06775933A EP 1926805 A1 EP1926805 A1 EP 1926805A1
Authority
EP
European Patent Office
Prior art keywords
graphite
graphite particles
aqueous
dispersion according
graphite dispersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06775933A
Other languages
German (de)
English (en)
Inventor
Werner Handl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphit Kropfmuehl AG
Original Assignee
Graphit Kropfmuehl AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graphit Kropfmuehl AG filed Critical Graphit Kropfmuehl AG
Publication of EP1926805A1 publication Critical patent/EP1926805A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/087—Boron oxides, acids or 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/102—Silicates
    • C10M2201/103—Clays; Mica; Zeolites
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/028—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a nitrogen-containing hetero ring
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • 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
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • 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
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015—Dispersions of solid lubricants

Definitions

  • the present invention relates to an aqueous graphite dispersion comprising graphite particles, stabilizers, additives and water, wherein the graphite particles are dispersed in the water and the stabilizers are provided as a dispersing agent, a process for producing the aqueous graphite dispersion and their use.
  • a dispersion is understood to mean a system consisting of several phases, of which one phase is dispersed continuously (dispersing agent) and at least one further is dispersed (dispersed phase or dispersant). Since dispersions tend to phase separate, various aids such as emulsifiers, protective colloids or dispersants are used for stabilization.
  • aqueous graphite dispersion is used as a dispersant graphite, which is finely dispersed in the dispersant water.
  • graphite dispersions are used as lubricants and / or release agents in hot metal forming. It is a prerequisite that such graphite dispersions adhere to cold and hot metal surfaces and form a lubricating and protective film. This not only makes the metal easier to deform, but also reduces tool wear during deformation.
  • Graphite dispersions are also used as a coating, for example in the interior coating of battery cups or rubber vulcanizates, e.g. used for windshield wipers, but also as a conductive coating on plastics, glass, ceramics and others.
  • aqueous graphite dispersions in addition to physiological safety and storage stability especially a universal processability is required. For example, depending on the application, such dispersions are predominantly sprayed on.
  • the viscosity of the aqueous dispersion plays an important role. Particularly low viscosity dispersions with a high solids content are preferred.
  • Aqueous graphite dispersions should have a stable viscosity curve even at high shear rates, even at high shear rates. Dilatant, rheopexic and / or thixotropic forms are therefore undesirable. A stable viscosity curve is only possible if the particles in the dispersed phase can pass each other unhindered at all shear rates.
  • the spraying of the dispersion solutions can be done in the classical compressed air spraying process (air spraying) as well as airless (airless).
  • air spraying air spraying
  • airless airless
  • the transfer by means of rollers, brush, etc. is in use. All these processes require dispersions which, in addition to their suitability for the respective application system, also give a perfect surface on the coated surface. Criteria for this are: Page -3-
  • Graphite dispersions without auxiliaries are extremely highly viscous and partially thixotropic. This is due to the platelet-shaped structure of the graphite particles, which in liquid
  • This card house structure is also distinct from other platelet fabrics, such as e.g. Clay minerals or kaolin known.
  • peptizers can bring this house of cards structure to collapse and increase the stability through the use of electrostatically active substances. Such mechanisms of action with peptizers do not work with graphite.
  • macromolecular substances are additionally used to stabilize graphite dispersions.
  • Such macromolecular substances from the compound groups of mono- and polysaccharides act as protective colloids while increasing the viscosity.
  • Polyelectrolytes such as sodium carboxymethylcellulose, alginates or salts of lignosulfonic acids fall under the known spectrum of activity.
  • Decisive for disperse systems are the size of the exchange surface, as well as the thickness of the boundary layers.
  • the specific phase boundary depends hyperbolic on the particle diameter. Very finely divided dispersions with a particle size ⁇ 1, 0 microns therefore tend increasingly agglomerate formation, so that the theoretical stability advantage, as it results from the Stokes law, is repealed by the formation of large parts. Agglomerates sediment with comparable speed as equal-sized primary particles.
  • the platelet-shaped graphite particles lead to an extremely difficult redispersible sediment on sedimentation. This is due to the fact that the platelet-shaped particles deposit horizontally and build up stack-like structures. Due to the mating surface to surface so-called glass plate effect occurs and the particles stick together with great adhesion.
  • US Pat. No. 5,800,739 relates to an aqueous dispersion of graphite particles, using as stabilizer a polymer stabilizer having repeating alkylene oxide groups with an excess hydrophilic-lipophilic balance (HLB) of 10.
  • the graphite content is in a range of 0.5 to about 10 wt .-% of the dispersion.
  • US 5476580 describes a graphite dispersion which comprises 0.1 to 20% by weight of graphite having an average particle size in the range of 0.05 to 50 ⁇ m and optionally dispersants and surfactants. Furthermore, a galvanization process using the aqueous graphite dispersion is described.
  • a lubricant composition suitable for forging processes is disclosed.
  • This composition may optionally have graphite in an amount of about 3 to 30% by weight.
  • US 2001001096 relates to a high-temperature lubricant dispersion which has approximately between 10.0 and 30% by weight of suspended graphite. Also, the production process of this lubricant dispersion will be described
  • a disadvantage of the known dispersions is the fact that only solids contents of not more than 30% by weight can be achieved despite the use of effective additives. Furthermore, the dispersions do not have optimum rheological behavior. This disadvantage is particularly important in the application, since no universal application is possible. For example, dispersions are expected to be useful on all commercial sprayers, roller application or doctor blade systems, ie, they must be stable over a wide shear range. Ultimately, this depends on the surface quality of the coating. Page 6-
  • the object of the present invention is to provide a stable aqueous dispersion of graphite particles which exhibits high dispersion stability, has low viscosity at high solids content and is easy to redisperse.
  • an aqueous graphite dispersion with graphite particles, stabilizers, additives and water wherein the graphite particles are dispersed in the water and the stabilizers are provided as dispersants, wherein the surface of the graphite particles are at least partially spherical.
  • At least partially spherical is meant any geometry of graphite particles which is to be associated with a spherical shape. These include graphite particles with a spherical surface.
  • graphite particles are included whose surface is approximately spherical.
  • Graphite particles with an approximately spherical surface are graphite particles in which the radius of a graphite particle is not the same in all places. In other words, these are graphite particles with an irregular spherical shape.
  • the surface of the graphite particles are of spherical design.
  • the graphite particles may be in a mixed form comprising 60-99% by weight of graphite particles having a spherically-shaped surface and 1-40% by weight of graphite particles having an at least partially spherical surface. It is preferable if the graphite particles are in a mixed form comprising 80-99% by weight of graphite particles having a spherical surface and 1-20% by weight of graphite particles having an at least partially spherical surface. Most preferred is when the graphite particles are in a mixed form comprising 90-99% by weight graphite particles having a spherically-shaped surface and 1-10% by weight graphite particles having an at least partially spherically-shaped surface.
  • the surface of the graphite particles can be treated by folding and densification such that graphite particles are obtained whose surface is at least partially spherical.
  • rotor mills or hammer mills are used with special Mahlbahngeometrie.
  • rotor stator systems with a special gap design.
  • Such systems are well known in the art and are available, for example, from Hosokawa Alpine or Nara maschinery.
  • the graphite particles have an average particle size (d50) of 0.05-100 ⁇ m. It is particularly preferred if the graphite particles have an average particle size (d50) of 1 to 50 ⁇ m, and very particularly preferably D has an average particle size (d50) of 2 to 20 ⁇ m.
  • the viscosity of the aqueous graphite dispersion according to the invention is in a range from 500 to 6000 mPa s. Particularly preferred is a range of 1000 to 3000 mPa s, and most preferably is the range of 1000 to 2000 5 mPa s.
  • stabilizers are used which are selected from at least one compound of the group which consists of dispersing aids, wetting agents and protective colloids.
  • macromolecular compounds in particular those which are selected from the group consisting of polyethylene glycols, mono- and polysaccharides such as alginates, cellulose derivatives, xanthan gums, starch derivatives, polyelectrolytes, salts of lignosulfonic acids, polyvinyl alcohols, polyvinylpyrrolidones and polyacrylates.
  • additives can be added as needed and purpose. These include preservatives such as formaldehyde, formaldehyde derivatives and isothiazolinones. Furthermore, additives can be used which Page -9-
  • molybdenum disulfide boron nitride, tungsten disulfide, sodium borates, sodium silicates, sodium molybdates, bentonites and montmorillonites.
  • Molybdenum disulfide, boron nitride and tungsten disulfide act as lubricants.
  • the other additives mentioned can be used inter alia as adhesion promoters.
  • An aqueous graphite dispersion according to the invention has
  • the graphite particles account for from 30% to 60% by weight, based on the total weight of the graphite dispersion. Very particularly preferred is a solids content of graphite particles of 45 wt .-% to 55 wt .-%.
  • Another object of the invention is to provide a process for the preparation of an aqueous graphite dispersion according to the invention. This object is achieved by successively dissolving the stabilizers in water with stirring in a first step and, in a second step, adding the graphite particles with stirring.
  • a particular advantage of the process according to the invention for the preparation of the graphite dispersion is that when using the graphite particles according to the invention, only simple paddle stirrers or propeller stirrers are necessary.
  • the invention further relates to the use of the aqueous graphite dispersion as a lubricant and / or release agent in hot metal forming and as a coating in the inner coating or Mattvulkanisaten or as a conductive coating on plastics, glass and ceramic.
  • FIG. 1 shows a scanning electron micrograph of piuschtchenförmigem graphite of the prior art.
  • FIG. 2 shows a scanning electron micrograph of graphite particles according to the invention.
  • Example 1 0.5 kg of naphthalenesulfonic acid condensation product Na-SaIz (anionic wetting agents) are dissolved in 55.00 kg of demineralized water and then 0.5 kg of xanthan (protective colloid based polysaccharide ß-1, 4 glycosidic Page 12-

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Lubricants (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne une dispersion de graphite aqueuse, comprenant des particules de graphite, des stabilisateurs, des additifs et de l'eau, les particules de graphites étant dispersées dans l'eau et le stabilisateurs étant utilisés en tant que moyen de dispersion. L'invention est caractérisée en ce que, la surface des particules de graphite se présente, au moins en partie, sous la forme d'une boule.
EP06775933A 2005-09-13 2006-09-08 Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides Withdrawn EP1926805A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005043542A DE102005043542A1 (de) 2005-09-13 2005-09-13 Stabile wässrige Graphitdispersion mit hohem Feststoffgehalt
PCT/DE2006/001572 WO2007031055A1 (fr) 2005-09-13 2006-09-08 Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides

Publications (1)

Publication Number Publication Date
EP1926805A1 true EP1926805A1 (fr) 2008-06-04

Family

ID=37500009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06775933A Withdrawn EP1926805A1 (fr) 2005-09-13 2006-09-08 Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides

Country Status (4)

Country Link
US (1) US20090305052A1 (fr)
EP (1) EP1926805A1 (fr)
DE (1) DE102005043542A1 (fr)
WO (1) WO2007031055A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112755244A (zh) * 2019-10-21 2021-05-07 中国科学院福建物质结构研究所 一种亲水性聚合物水凝胶支架及其制备方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009020678A1 (de) * 2009-05-10 2010-11-18 Sgl Carbon Se Graphitfolie für Stopfbuchspackungen
EP2256087A1 (fr) 2009-05-26 2010-12-01 Belenos Clean Power Holding AG Dispersions stables de couches de graphène simple et multiples dans une solution
WO2012092986A1 (fr) 2011-01-07 2012-07-12 Omya Development Ag Procédé de blanchiment de la surface d'une boue minérale à base d'eau
CN107078297A (zh) 2014-09-26 2017-08-18 应用材料公司 用于二次电池电极的高固体含量糊配方
CN106752126A (zh) * 2016-11-15 2017-05-31 姚佑灿 一种复合涂料及其制备方法
US10793800B2 (en) * 2017-02-07 2020-10-06 Aero Accessories, Llc Lubricant compositions and methods of use
WO2018161004A1 (fr) 2017-03-02 2018-09-07 Renner C Benjamin Systèmes et méthodes de création de surfaces lubrifiées durables par modification interfaciale
DE102017006335A1 (de) * 2017-07-04 2019-01-10 Linde Aktiengesellschaft lonische Flüssigkeit mit Trockenschmierstoff
CN107674731A (zh) * 2017-09-27 2018-02-09 河南毛毛虫石墨烯科技有限公司 用于汽车发动机的石墨烯润滑油及其制备方法
CN108485766B (zh) * 2018-04-16 2021-03-26 中国兵器工业第五九研究所 一种高粘性材料冷挤压成形用高效润滑层及其制备药型罩中的应用
FR3096371B1 (fr) * 2019-05-22 2021-05-14 Safran Aircraft Engines Formulation aqueuse lubrifiante, son utilisation et procédé de fabrication d'une pièce la mettant en œuvre
CN110591420B (zh) * 2019-08-09 2021-04-02 青岛久益石墨有限公司 金属板材输送隔离剂及其制备方法
CA3239623A1 (fr) 2021-12-06 2023-05-30 Hema Sagar GIDDI Compositions lubrifiantes a base de graphite aqueux
WO2023107324A1 (fr) 2021-12-06 2023-06-15 Dow Global Technologies Llc Compositions lubrifiantes comprenant des agents dispersants polymères
CA3239618A1 (fr) 2021-12-06 2023-06-15 Hema Sagar GIDDI Compositions de lubrifiant a base de graphite aqueuse comprenant des dispersants

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637498A (en) 1968-04-29 1972-01-25 Aluminum Co Of America Extrusion lubricant
CH609728A5 (en) * 1974-09-06 1979-03-15 Lonza Ag High temperature lubricant for the hot-forming of metals
GB1438215A (en) * 1974-05-08 1976-06-03 Lonz Ltd High temperature lubricant
CH596294A5 (en) * 1974-05-08 1978-03-15 Lonza Ag High temp. lubricants for hot forming of metals
US4104178A (en) * 1975-10-24 1978-08-01 Wyman-Gordon Company Water-based forging lubricant
US4401579A (en) 1981-09-03 1983-08-30 Acheson Industries, Inc. Water-based metal forming lubricant composition and process
CH665847A5 (de) * 1985-10-02 1988-06-15 Lonza Ag Verfahren zum suspendieren von festschmierstoffen.
JPH04180998A (ja) 1990-11-14 1992-06-29 Osaka Gas Co Ltd 潤滑剤及び潤滑油
US6171468B1 (en) 1993-05-17 2001-01-09 Electrochemicals Inc. Direct metallization process
US5476580A (en) * 1993-05-17 1995-12-19 Electrochemicals Inc. Processes for preparing a non-conductive substrate for electroplating
US5895794A (en) * 1993-08-30 1999-04-20 Dow Corning Corporation Shelf stable cross-linked emulsions with optimum consistency and handling without the use of thickeners
JPH07268682A (ja) 1994-03-28 1995-10-17 Mec Kk 非導電体表面に電気メッキする方法
US5840800A (en) * 1995-11-02 1998-11-24 Dow Corning Corporation Crosslinked emulsions of pre-formed silicon modified organic polymers
US5800739A (en) 1996-04-11 1998-09-01 Shipley Company, L.L.C. Stabilized dispersions of graphite particles
FR2780067B1 (fr) * 1998-06-18 2003-01-24 Rhodia Chimie Sa Dispersion sillicone aqueuse reticulable en elastomere transparent et materiau d'etancheification et/ou de jointoiement et/ou de revetement comprenant cet elastomere
US6169059B1 (en) 1998-11-19 2001-01-02 Superior Graphite Co. High-temperature, water-based lubricant and process for making the same
US6828373B2 (en) 2001-03-07 2004-12-07 Advanced Ceramics Research, Inc. Water soluble tooling materials for composite structures

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007031055A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112755244A (zh) * 2019-10-21 2021-05-07 中国科学院福建物质结构研究所 一种亲水性聚合物水凝胶支架及其制备方法

Also Published As

Publication number Publication date
WO2007031055A1 (fr) 2007-03-22
DE102005043542A1 (de) 2007-03-15
US20090305052A1 (en) 2009-12-10

Similar Documents

Publication Publication Date Title
EP1926805A1 (fr) Dispersion de graphite stable et aqueuse comprenant une teneur elevee en matieres solides
DE69933545T2 (de) Wässrige Polytetrafluorethylendispersionszusammensetzung
DE69839096T2 (de) Dispersion von cellulose
DE69731986T2 (de) Zusammensetzung von Nanofibrillen von Cellulose mit carboxylierter Cellulose mit hohem Substitutionsgrad
DE69920745T2 (de) Emulgiersystem und emulsionen
DE69432701T2 (de) Flüssige Suspension von cellulose-haltigen Polysacchariden für Pflegemittel und für Haushaltsreinigungsmittel
EP0743352B1 (fr) Composition lubrifiante convenant à l'application sur des pièces métalliques pour le formage à chaud
EP2369597B1 (fr) Fabrication de revêtements de surface conducteurs ayant une dispersion à nanoparticules d'argent stabilisées électrostatiquement
EP1727881A1 (fr) Dispersion aqueuse stable de particules, et utilisation et procede de production de telles particules
DE19546073A1 (de) Stabile wäßrige Wachsdispersionen
DE102004031785A1 (de) Polyol enthaltende Siliciumdioxid-Dispersion
EP0554822B1 (fr) Lubrifiant de mandrin pour la fabrication de tubes sans soudures
DE3438272A1 (de) Druckfarbe fuer das spritz- oder strahldrucken
DE102005032427A1 (de) Aluminiumoxid-Dispersion
DE112014007281T5 (de) Silikonzusammensetzung
EP1483336B2 (fr) Procede de production de corps solides inorganiques enduits, finement divises, et leur utilisation
WO2009129929A1 (fr) Dispersions stables de nanoparticules inorganiques
DE69823993T2 (de) Verwendung von wässrigen Schutzschichtzusammensetzungen für Industrielle Beschichtungen und wässrige Beschichtungszusammensetzungen
EP0659449B1 (fr) De l'eau épaissie
DE69629581T2 (de) Ölfreie, wasserlösliche flüssigpolymerdispersion aus hydroxyethylzellulose
EP1529805B1 (fr) Composition particulaire stable au stockage à base de polysaccharides et/ou de dérivés de polysaccharides et au moins un polymère synthétique, procédé de préparation et utilisation dans des mélanges de matériaux de construction.
WO2001077183A1 (fr) Procede pour la production d'ethers cellulosiques non ioniques, au moins alkyles, pulverulents, solubles dans l'eau et bien mouillables
Naé et al. Rheologische Eigenschaften assoziativer Verdicker in waßrigen Beschichtungsstoffen/Rheological properties of associative thickeners in water-based coatings
EP0202434B1 (fr) Procédé pour la préparation de dispersions d'amidon de faible viscosité
WO2021219242A1 (fr) Dispersions aqueuses stables d'ipbc

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080307

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20100510

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111213