EP2017328A2 - Silicon-free cutting oil and its use - Google Patents

Silicon-free cutting oil and its use Download PDF

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Publication number
EP2017328A2
EP2017328A2 EP08156413A EP08156413A EP2017328A2 EP 2017328 A2 EP2017328 A2 EP 2017328A2 EP 08156413 A EP08156413 A EP 08156413A EP 08156413 A EP08156413 A EP 08156413A EP 2017328 A2 EP2017328 A2 EP 2017328A2
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EP
European Patent Office
Prior art keywords
cutting oil
polyalkylene glycol
oil according
cutting
sawing
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.)
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Application number
EP08156413A
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German (de)
French (fr)
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EP2017328A3 (en
Inventor
Torsten Henning
Anja Kindling
Rüdiger Landers
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Evonik Operations GmbH
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Evonik Goldschmidt GmbH
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Publication of EP2017328A2 publication Critical patent/EP2017328A2/en
Publication of EP2017328A3 publication Critical patent/EP2017328A3/en
Withdrawn legal-status Critical Current

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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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
    • C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
    • C10M107/34—Polyoxyalkylenes
    • 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
    • C10M2201/02—Water
    • 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
    • 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
    • C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
    • 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
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • 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
    • C10M2209/107—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106
    • C10M2209/1075—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of two or more specified different alkylene oxides covered by groups C10M2209/104 - C10M2209/106 used as base material
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/071—Branched chain compounds
    • 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
    • C10N2020/09—Characteristics associated with water
    • C10N2020/091—Water solubility
    • 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
    • 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
    • C10N2040/32—Wires, ropes or cables lubricants

Definitions

  • the invention relates to silicone-free cutting oils and their use in band saw systems, for example when sawing polyurethane block foams and the production of furniture with such polyurethane foam parts, which show good results in fire tests.
  • Sawing systems require cutting oils to reduce the friction between the saw blade or saw band and the body to be cut.
  • band sawing systems are used in the processing of polyurethane block foams.
  • the friction between saw and polyurethane foam is particularly high, so that basically a cutting oil is needed.
  • silicone oils such as polydimethylsiloxanes having a viscosity of 5 to 1000 mPa s measured at 25 ° C.
  • high demands are placed on the cut polyurethane foam parts with respect to flame retardancy, especially if the foam parts are further processed into pieces of furniture such as mattresses or seating. It shows that foam parts, which were produced with silicone-containing cutting oils, achieve poor results in fire tests.
  • polyalkylene glycols can be used as cutting oils or in cutting oils and these cutting oils containing polyalkylene glycols, optionally solvents and optionally other auxiliaries and additives, solve this problem.
  • silicone-free means that no compounds are present which have Si-C or Si-O-C bonds.
  • the cutting oils of the invention preferably contain ethylene oxide / propylene oxide copolymers, which are preferably obtainable by copolymerizing ethylene oxide (EO) and propylene oxide (PO) with a polyhydric alcohol.
  • the cutting oils according to the invention preferably comprise polyalkylene glycols which are reacted with glycerol, trimethylolpropane, pentaerythritol, Diglycerol, triglycerol, ditrimethylolpropane, dipentaerythritol or sorbitol, most preferably pentaerythritol were prepared as a polyvalent starting alcohol.
  • the polyalkylene glycols contained in the cutting oils according to the invention preferably have an EO / PO weight ratio of from 80:20 to 40:60, preferably from 80:20 to 70:30 and preferably from 75:25.
  • the polyalkylene glycols preferably have an average molar mass of from 2,000 to 30,000 g / mol, particularly preferably from 3,500 to 20,000 g / mol and very particularly preferably from 5,000 to 7,500 g / mol.
  • the polyalkylene glycols contained in the cutting oils according to the invention are miscible with water in any ratio.
  • polyalkylene glycols which are contained in the cutting oils according to the invention can, for. B. commercially available polyalkylene glycols, such as polyglycol P41 / 300, polyglycol P41 / 3000 or polyglycol P41 / 12000 Clariant be.
  • polyalkylene glycols (often referred to as polyoxyalkylenes), which may be contained as polyalkylene glycol in the cutting oil according to the invention, as in the prior art, for.
  • polyoxyalkylenes polyalkylene glycols
  • the preparation of the polyalkylene glycols is preferably carried out in an alkaline catalyzed manner, and more preferably with pentaerythritol as the starting alcohol.
  • the cutting oil can also contain one or more solvents in addition to polyalkylene glycol.
  • the cutting oil preferably has from 1 to 99% by weight, preferably from 50 to 90% by weight, of solvent (s) B).
  • a preferred solvent is water.
  • the cutting oil according to the invention may comprise one or more auxiliary and / or additives C).
  • Preferred auxiliaries and / or additives C) may, for. B. conventional preservatives such as bactericides or fungicides z.
  • triethanolamine and corrosion inhibitors such as Hostacor ® IT, manufacturer Clariant be.
  • Another object of the invention is the use of the cutting oils according to the invention in sawing equipment, preferably in band sawing systems and more preferably in band sawing equipment for / sawing polyurethane foams or polyurethane block foams.
  • the present invention tailored polyurethane foam parts obtained by sawing, in particular band sawing polyurethane foams using cutting oil according to the invention and the use of polyurethane foam cut parts according to the invention for the production of articles with good fire properties, for the production of furniture and in particular for the production of furniture with good fire properties.
  • Good fire properties are understood to mean that the polyurethane foam parts pass the fire test in accordance with ASTM D 1692 (burned-out section maximum 125 mm).
  • Cutting oil according to the invention silicone-free, consisting of 99.5% by weight of polyglycol P 41/300, 0.5% by weight of triethanolamine.
  • Cutting oil according to the invention silicone-free, consisting of 49.5% by weight of polyglycol P 41/3000, 50% by weight of water, 0.5% by weight of triethanolamine.
  • Cutting oil according to the invention silicone-free, consisting of 10% by weight of polyglycol P 41/12000, 89.5% by weight of water, 0.5% by weight of triethanolamine.
  • the saw band of a band saw was coated with the particular cutting oil by rubbing it with a soaked rag and then determining the number of cutting operations that were possible before viscoelastic block foam ruptured due to excessive friction during cutting.
  • Foam parts of the predetermined size (150 mm ⁇ 50 mm ⁇ 13 mm) were sprayed with the example cutting oils (in each case about 10 g) and dried at room temperature for 48 hours.
  • the results of the Fire tests ASTM D 1692 in which the test specimen is placed horizontally on a sieve and is subjected to a flame from below for 60 seconds, is given in the burned-out distance (maximum 125 mm) (Table 1).
  • Table 1 Results of sawing tests and burn tests release agent Number of possible cutting operations Results ASTM D 1692 Distance (mm) 1 8th 102 2 8th 110 3 7 120 A 8th > 125, failed test
  • the silicone-free cutting oils used according to the invention are equivalent to classic silicone oil in terms of lubricity, but show significantly better results in the burn-off test according to ASTM D 1692.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Silicone-free cutting oil (I) comprises at least one polyalkylene glycol and optionally solvent and auxiliary- and additive materials.

Description

Die Erfindung betrifft siliconfreie Schneidöle und ihre Verwendung in Bandsägeanlagen, beispielsweise beim Sägen von Polyurethanblockschäumen sowie die Herstellung von Möbelstücken mit solchen Polyurethanschaumteilen, die gute Ergebnisse in Brandtests zeigen.The invention relates to silicone-free cutting oils and their use in band saw systems, for example when sawing polyurethane block foams and the production of furniture with such polyurethane foam parts, which show good results in fire tests.

Sägeanlagen benötigen Schneidöle, um die Reibung zwischen Sägeblatt bzw. Sägeband und dem zu zerteilenden Körper herabzusetzen. Beispielsweise werden Bandsägeanlagen bei der Verarbeitung von Polyurethanblockschäumen eingesetzt. Die Reibung zwischen Säge und Polyurethanschaum ist besonders hoch, so dass grundsätzlich ein Schneidöl benötigt wird.Sawing systems require cutting oils to reduce the friction between the saw blade or saw band and the body to be cut. For example, band sawing systems are used in the processing of polyurethane block foams. The friction between saw and polyurethane foam is particularly high, so that basically a cutting oil is needed.

Üblicherweise werden als Schneidöle Siliconöle eingesetzt, beispielsweise Polydimethylsiloxane mit einer Viskosität von 5 bis 1.000 mPa s gemessen bei 25 °C. Häufig werden an die geschnittenen Polyurethanschaumteile hohe Anforderungen bezüglich Flammschutz gestellt, vor allem, wenn die Schaumteile zu Möbelstücken wie beispielsweise Matratzen oder Sitzmöbeln weiterverarbeitet werden. Dabei zeigt sich, dass Schaumteile, die mit siliconhaltigen Schneidölen hergestellt wurden, in Brandtests schlechte Ergebnisse erreichen.Usually used as cutting oils silicone oils, such as polydimethylsiloxanes having a viscosity of 5 to 1000 mPa s measured at 25 ° C. Frequently high demands are placed on the cut polyurethane foam parts with respect to flame retardancy, especially if the foam parts are further processed into pieces of furniture such as mattresses or seating. It shows that foam parts, which were produced with silicone-containing cutting oils, achieve poor results in fire tests.

Aufgabe der vorliegenden Erfindung war es daher, alternative Schneidöle für Polyurethanblockschäume bereitzustellen, die vorzugsweise die Ergebnisse von Brandtests an damit geschnittenen Polyurethanschaumteilen nicht oder wenig negativ beeinflussen.It was therefore an object of the present invention to provide alternative cutting oils for polyurethane block foams, which preferably do not influence or negatively affect the results of fire tests on polyurethane foam parts cut therewith.

Überraschenderweise wurde nun gefunden, dass Polyalkylenglykole als Schneidöle bzw. in Schneidöle verwendet werden können und diese Schneidöle, die Polyalkylenglykole, ggf. Lösungsmittel und ggf. weitere Hilfs- und Zusatzstoffe enthalten, diese Aufgabe lösen.Surprisingly, it has now been found that polyalkylene glycols can be used as cutting oils or in cutting oils and these cutting oils containing polyalkylene glycols, optionally solvents and optionally other auxiliaries and additives, solve this problem.

Die erfindungsgemäße Verwendung von Polyalkylenglykolen als bzw. in Schneidölen bzw. die Schneidöle selbst hat/haben den Vorteil, dass die erfindungsgemäßen siliconfreien Schneidöle gleichwertig mit klassischem Siliconöl hinsichtlich der Schmierwirkung sind aber ein wesentlich besseres Abbrandverhalten zeigen.The use according to the invention of polyalkylene glycols as or in cutting oils or the cutting oils themselves has the advantage that the silicone-free cutting oils according to the invention are equivalent to classic silicone oil in terms of the lubricating effect, but exhibit a significantly better burn-off behavior.

Die erfindungsgemäßen Schneidöle sowie deren Verwendung werden nachfolgend beispielhaft beschrieben, ohne dass die Erfindung auf diese beispielhaften Ausführungsformen beschränkt sein soll. Sind nachfolgend Bereiche, allgemeine Formeln oder Verbindungsklassen angegeben, so sollen diese nicht nur die entsprechenden Bereiche oder Gruppen von Verbindungen umfassen, die explizit erwähnt sind, sondern auch alle Teilbereiche und Teilgruppen von Verbindungen, die durch Herausnahme von einzelnen Werten (Bereichen) oder Verbindungen erhalten werden können. Werden im Rahmen der vorliegenden Beschreibung Dokumente zitiert, so soll deren Inhalt vollumfänglich zum Offenbarungsgehalt der vorliegenden Erfindung gehören.The cutting oils according to the invention and their use are described below by way of example, without the invention being restricted to these exemplary embodiments. Given below, ranges, general formulas, or classes of compounds are intended to encompass not only the corresponding regions or groups of compounds explicitly mentioned, but also all sub-regions and sub-groups of compounds obtained by removing individual values (ranges) or compounds can be. If documents are cited in the context of the present description, their content should be included in full in the disclosure of the present invention.

Gegenstand der Erfindung sind daher siliconfreie Schneidöle enthaltend, vorzugsweise im Wesentlichen enthaltend

  1. A) mindestens ein Polyalkylenglykol und
  2. B) ggf. Lösungsmittel und
  3. C) ggf. weitere Hilfs- und Zusatzstoffe.
The invention therefore provides silicone-free cutting oils containing, preferably substantially containing
  1. A) at least one polyalkylene glycol and
  2. B) if necessary, solvent and
  3. C) optionally further auxiliaries and additives.

Unter siliconfrei wird im Rahmen der vorliegenden Erfindung verstanden, dass keine Verbindungen enthalten sind, die Si-C oder Si-O-C Bindungen aufweisen.In the context of the present invention, silicone-free means that no compounds are present which have Si-C or Si-O-C bonds.

Vorzugsweise enthalten die Schneidöle bzw. bevorzugt bestehen diese aus:

  1. A) 1 bis 100 Gew.-% Polyalkylenglykol und
  2. B) 0 bis 99 Gew.-% Lösungsmittel und
  3. C) 0 bis 50 Gew.-% weitere Hilfs- und Zusatzstoffe.
The cutting oils preferably contain or preferably consist of these:
  1. A) 1 to 100 wt .-% polyalkylene glycol and
  2. B) 0 to 99 wt .-% of solvent and
  3. C) 0 to 50 wt .-% further auxiliaries and additives.

Bevorzugt enthalten die Schneidöle bzw. bestehen diese aus:

  • A) 1 bis 99,98 Gew.-% mindestens eines Polyalkylenglykols und
  • B) 0,01 bis 98 Gew.-% mindestens eines Lösungsmittels und/oder
  • C) 0,01 bis 50 Gew.-% mindestens eines Hilfs- und/oder Zusatzstoffes.
The cutting oils preferably contain or consist of these:
  • A) 1 to 99.98 wt .-% of at least one polyalkylene glycol and
  • B) 0.01 to 98 wt .-% of at least one solvent and / or
  • C) 0.01 to 50 wt .-% of at least one auxiliary and / or additive.

Besonders bevorzugt enthalten die Schneidöle bzw. bestehen diese aus:

  • A) 1 bis 99,8 Gew.-% mindestens eines Polyalkylenglykols und
  • B) 0,1 bis 98 Gew.-% mindestens eines Lösungsmittels und/oder
  • C) 0,1 bis 50 Gew.-% mindestens eines Hilfs- und/oder Zusatzstoffes.
Particularly preferably, the cutting oils contain or consist of these:
  • A) 1 to 99.8 wt .-% of at least one polyalkylene glycol and
  • B) 0.1 to 98 wt .-% of at least one solvent and / or
  • C) 0.1 to 50 wt .-% of at least one auxiliary and / or additive.

Als Polyalkylenglykole enthalten die erfindungsgemäßen Schneidöle vorzugsweise Ethylenoxid-/Propylenoxid-Copolymere, welche vorzugsweise durch Copolymerisation von Ethylenoxid (EO) und Propylenoxid (PO) mit einem mehrwertigen Alkohol erhältlich sind.As the polyalkylene glycols, the cutting oils of the invention preferably contain ethylene oxide / propylene oxide copolymers, which are preferably obtainable by copolymerizing ethylene oxide (EO) and propylene oxide (PO) with a polyhydric alcohol.

Bevorzugt enthalten die erfindungsgemäßen Schneidöle Polyalkylenglykole, die mit Glyzerin, Trimethylolpropan, Pentaerythrit, Diglycerin, Triglycerin, Ditrimethylolpropan, Dipentaerythrit oder Sorbitol, ganz besonders bevorzugt Pentaerythrit als mehrwertigem Startalkohol hergestellt wurden.The cutting oils according to the invention preferably comprise polyalkylene glycols which are reacted with glycerol, trimethylolpropane, pentaerythritol, Diglycerol, triglycerol, ditrimethylolpropane, dipentaerythritol or sorbitol, most preferably pentaerythritol were prepared as a polyvalent starting alcohol.

Die in den erfindungsgemäßen Schneidölen enthaltenen Polyalkylenglykole weisen vorzugsweise ein EO/PO-Gewichtsverhältnis von 80 : 20 bis 40 : 60, vorzugsweise von 80 : 20 bis 70 : 30 und bevorzugt von 75 : 25 auf.The polyalkylene glycols contained in the cutting oils according to the invention preferably have an EO / PO weight ratio of from 80:20 to 40:60, preferably from 80:20 to 70:30 and preferably from 75:25.

Bevorzugt weisen die Polyalkylenglykole eine mittlere Molmasse von 2.000 bis 30.000 g/mol, besonders bevorzugt von 3.500 bis 20.000 g/mol und ganz besonders bevorzugt von 5.000 bis 7.500 g/mol auf.The polyalkylene glycols preferably have an average molar mass of from 2,000 to 30,000 g / mol, particularly preferably from 3,500 to 20,000 g / mol and very particularly preferably from 5,000 to 7,500 g / mol.

Bevorzugt sind die in den erfindungsgemäßen Schneidölen enthaltenen Polyalkylenglykole mit Wasser in jedem Verhältnis mischbar.Preferably, the polyalkylene glycols contained in the cutting oils according to the invention are miscible with water in any ratio.

Die Polyalkylenglykole, die in den erfindungsgemäßen Schneidölen enthalten sind, können z. B. kommerziell erhältliche Polyalkylenglykole, wie beispielsweise Polyglykol P41/300, Polyglykol P41/3000 oder Polyglykol P41/12000 der Firma Clariant, sein.The polyalkylene glycols which are contained in the cutting oils according to the invention can, for. B. commercially available polyalkylene glycols, such as polyglycol P41 / 300, polyglycol P41 / 3000 or polyglycol P41 / 12000 Clariant be.

Die Herstellung von Polyalkylenglykolen (häufig auch als Polyoxyalkylene bezeichnet), die als Polyalkylenglykol im erfindungsgemäßen Schneidöl enthalten sein können, kann wie im Stand der Technik, z. B. in Ullmann's encyclopedia of industrial chemistry, Vol. A21, 5th completely revised edition 1992, VCH Verlagsgesellschaft mbH, Weinheim, Seiten 579 bis 589 und der dort zitierten Literatur beschrieben, erfolgen. Vorzugsweise erfolgt die Herstellung der Polyalkylenglykole alkalisch katalysiert und besonders bevorzugt mit Pentaerythrit als Startalkohol.The preparation of polyalkylene glycols (often referred to as polyoxyalkylenes), which may be contained as polyalkylene glycol in the cutting oil according to the invention, as in the prior art, for. In Ullmann's encyclopedia of industrial chemistry, Vol. A21, 5th completely revised edition 1992, VCH Verlagsgesellschaft mbH, Weinheim, pages 579 to 589 and the literature cited therein. The preparation of the polyalkylene glycols is preferably carried out in an alkaline catalyzed manner, and more preferably with pentaerythritol as the starting alcohol.

Da die Polyalkylenglykole bereits in sehr geringen Konzentrationen hervorragende Schmierstoffeigenschaften zeigen, kann das Schneidöl neben Polyalkylenglykol auch ein oder mehrere Lösungsmittel aufweisen. Vorzugsweise weist das Schneidöl von 1 bis 99 Gew.-%, bevorzugt von 50 bis 90 Gew.-% an Lösungsmittel(n) B), auf. Ein bevorzugtes Lösungsmittel ist Wasser.Since the polyalkylene glycols already exhibit excellent lubricant properties in very low concentrations, the cutting oil can also contain one or more solvents in addition to polyalkylene glycol. The cutting oil preferably has from 1 to 99% by weight, preferably from 50 to 90% by weight, of solvent (s) B). A preferred solvent is water.

Neben dem Polyalkylenglykol sowie ggf. dem Lösungsmittel kann das erfindungsgemäße Schneidöl eine oder mehrere Hilfs-und/oder Zusatzstoffe C) aufweisen. Bevorzugte Hilfs- und/oder Zusatzstoffe C) können z. B. übliche Konservierungsmittel wie Bakterizide oder Fungizide z. B. Euxyl® 100, Lieferant Schülke & Mayr oder Mergal® K 12, Lieferant Troy; Antioxidantien z. B. Irganox® 1520 L, Hersteller Ciba oder Butylhydroxyanisol; Amine z. B. Triethanolamin sowie Korrosionschutzmittel z.B. Hostacor® IT, Hersteller Clariant, sein.In addition to the polyalkylene glycol and optionally the solvent, the cutting oil according to the invention may comprise one or more auxiliary and / or additives C). Preferred auxiliaries and / or additives C) may, for. B. conventional preservatives such as bactericides or fungicides z. B. Euxyl ® 100, supplier Schulke & Mayr or Mergal K 12 ® provider Troy; Antioxidants z. B. Irganox ® 1520 L, manufacturer Ciba or butylhydroxyanisole; Amines z. As triethanolamine and corrosion inhibitors such as Hostacor ® IT, manufacturer Clariant be.

Besonders bevorzugte Schneidöle enthalten oder bestehen aus:

  • A) 50 bis 99,9 Gew.-%, insbesondere 95 bis 99,9 Gew.-% mindestens eines Polyalkylenglykols und
  • C) 0,1 bis 5 Gew.-% mindestens eines Amins, vorzugsweise Triethanolamin.
Particularly preferred cutting oils contain or consist of:
  • A) 50 to 99.9 wt .-%, in particular 95 to 99.9 wt .-% of at least one polyalkylene glycol and
  • C) 0.1 to 5 wt .-% of at least one amine, preferably triethanolamine.

Ganz besonders bevorzugte Schneidöle enthalten oder bestehen aus:

  • A) 99,0 bis 99,8 Gew.-% eines Polyalkylenglykols und
  • C) 0,2 bis 1,0 Gew.-% mindestens eines Amins, vorzugsweise Triethanolamin.
Very particularly preferred cutting oils contain or consist of:
  • A) 99.0 to 99.8 wt .-% of a polyalkylene glycol and
  • C) 0.2 to 1.0 wt .-% of at least one amine, preferably triethanolamine.

Ein weiterer Gegenstand der Erfindung ist die Verwendung der erfindungsgemäßen Schneidöle in Sägeanlagen, vorzugsweise in Bandsägeanlagen und besonders bevorzugt in Bandsägeanlagen zum/beim Sägen von Polyurethanschäumen bzw. Polyurethanblockschäumen.Another object of the invention is the use of the cutting oils according to the invention in sawing equipment, preferably in band sawing systems and more preferably in band sawing equipment for / sawing polyurethane foams or polyurethane block foams.

Außerdem sind Gegenstand der vorliegenden Erfindung zugeschnittene Polyurethanschaumteile, erhalten durch Sägen, insbesondere Bandsägen von Polyurethanschäumen unter Verwendung von erfindungsgemäßem Schneidöl sowie die Verwendung der erfindungsgemäßen, zugeschnittenen Polyurethanschaumteile zur Herstellung von Gegenständen mit guten Brandeigenschaften, zur Herstellung von Möbelstücken und insbesondere zur Herstellung von Möbelstücken mit guten Brandeigenschaften. Unter guten Brandeigenschaften wird dabei verstanden, dass die Polyurethanschaumteile den Brandtest gemäß ASTM D 1692 bestehen (abgebrannte Strecke maximal 125 mm).In addition, the present invention tailored polyurethane foam parts obtained by sawing, in particular band sawing polyurethane foams using cutting oil according to the invention and the use of polyurethane foam cut parts according to the invention for the production of articles with good fire properties, for the production of furniture and in particular for the production of furniture with good fire properties. Good fire properties are understood to mean that the polyurethane foam parts pass the fire test in accordance with ASTM D 1692 (burned-out section maximum 125 mm).

In den nachfolgend aufgeführten Beispielen wird die vorliegende Erfindung beispielhaft beschrieben, ohne dass die Erfindung, deren Anwendungsbreite sich aus der gesamten Beschreibung und den Ansprüchen ergibt, auf die in den Beispielen genannten Ausführungsformen beschränkt sein soll.In the examples given below, the present invention is described by way of example, without the invention, the scope of application of which is apparent from the entire description and the claims, to be limited to the embodiments mentioned in the examples.

Beispiele:Examples: Liste der eingesetzten Substanzen:List of substances used:

  • Polyglykol P 41/300 = Polyalkylenglykol, mittlere Molmasse 5.000, Hersteller: ClariantPolyglycol P 41/300 = polyalkylene glycol, average molecular weight 5,000, manufacturer: Clariant
  • Polyglykol P 41/3000 = Polyalkylenglykol, mittlere Molmasse 15.000, Hersteller: ClariantPolyglycol P 41/3000 = polyalkylene glycol, average molecular weight 15,000, manufacturer: Clariant
  • Polyglykol P 41/12000 = Polyalkylenglykol, mittlere Molmasse 20.000, Hersteller: ClariantPolyglycol P 41/12000 = polyalkylene glycol, average molecular weight 20,000, manufacturer: Clariant
  • Wacker® Siliconöl AK 100 = Polydimethylsiloxan, Viskosität bei 25 °C: 96 mPa s, Hersteller: WackerWacker ® silicone oil AK 100 = polydimethylsiloxane, viscosity at 25 ° C: 96 mPa s, manufacturer: Wacker
Beispiel 1:Example 1:

Erfindungsgemäßes Schneidöl, siliconfrei, bestehend aus 99,5 Gew.-% Polyglykol P 41/300, 0,5 Gew.-% Triethanolamin.Cutting oil according to the invention, silicone-free, consisting of 99.5% by weight of polyglycol P 41/300, 0.5% by weight of triethanolamine.

Beispiel 2:Example 2:

Erfindungsgemäßes Schneidöl, siliconfrei, bestehend aus 49,5 Gew.-% Polyglykol P 41/3000, 50 Gew.-% Wasser, 0,5 Gew.-% Triethanolamin.Cutting oil according to the invention, silicone-free, consisting of 49.5% by weight of polyglycol P 41/3000, 50% by weight of water, 0.5% by weight of triethanolamine.

Beispiel 3:Example 3:

Erfindungsgemäßes Schneidöl, siliconfrei, bestehend aus 10 Gew.-% Polyglykol P 41/12000, 89,5 Gew.-% Wasser, 0,5 Gew.-% Triethanolamin.Cutting oil according to the invention, silicone-free, consisting of 10% by weight of polyglycol P 41/12000, 89.5% by weight of water, 0.5% by weight of triethanolamine.

Vergleichsbeispiel A:Comparative Example A:

100 Gew.-% Wacker® Siliconöl AK 100.100 wt .-% Wacker Silicone Fluid AK ® 100th

Sägeversuche:sawing tests:

Das Sägeband einer Bandsäge wurde mit dem jeweiligen Schneidöl mittels Einreiben mit einem getränkten Lappen beschichtet und dann die Zahl der Schneidvorgänge ermittelt, die möglich waren, bevor viskoelastischer Blockschaum aufgrund zu hoher Reibung während des Schneidens einriss.The saw band of a band saw was coated with the particular cutting oil by rubbing it with a soaked rag and then determining the number of cutting operations that were possible before viscoelastic block foam ruptured due to excessive friction during cutting.

Abbrandtests nach ASTM D 1692:Burning tests according to ASTM D 1692:

Schaumteile der vorgegebenen Größe (150 mm x 50 mm x 13 mm) wurden mit den Beispielschneidölen besprüht (jeweils ca. 10 g) und 48 h bei Raumtemperatur getrocknet. Die Ergebnisse des Brandtests ASTM D 1692, bei dem der Prüfkörper horizontal auf einem Sieb liegt und 60 Sekunden lang eine Flamme von unten her einwirkt, werden in abgebrannter Strecke (max. 125 mm) angegeben (Tabelle 1). Tabelle 1: Ergebnisse der Sägeversuche und Abbrandtests Trennmittel Anzahl möglicher Schneidevorgänge Ergebnisse ASTM D 1692 Strecke (mm) 1 8 102 2 8 110 3 7 120 A 8 > 125, Test nicht bestanden Foam parts of the predetermined size (150 mm × 50 mm × 13 mm) were sprayed with the example cutting oils (in each case about 10 g) and dried at room temperature for 48 hours. The results of the Fire tests ASTM D 1692, in which the test specimen is placed horizontally on a sieve and is subjected to a flame from below for 60 seconds, is given in the burned-out distance (maximum 125 mm) (Table 1). Table 1: Results of sawing tests and burn tests release agent Number of possible cutting operations Results ASTM D 1692 Distance (mm) 1 8th 102 2 8th 110 3 7 120 A 8th > 125, failed test

Bewertung der Versuche:Evaluation of the experiments:

Wie aus obiger Tabelle 1 ersichtlich, sind die erfindungsgemäß verwendeten siliconfreien Schneidöle gleichwertig mit klassischem Siliconöl hinsichtlich der Schmierwirkung, zeigen aber wesentlich bessere Ergebnisse im Abbrandtest nach ASTM D 1692.As can be seen from Table 1 above, the silicone-free cutting oils used according to the invention are equivalent to classic silicone oil in terms of lubricity, but show significantly better results in the burn-off test according to ASTM D 1692.

Claims (11)

Siliconfreies Schneidöl enthaltend A) mindestens ein Polyalkylenglykol und B) ggf. Lösungsmittel und C) ggf. weitere Hilfs- und Zusatzstoffe. Containing silicone-free cutting oil A) at least one polyalkylene glycol and B) if necessary, solvent and C) optionally further auxiliaries and additives. Schneidöl nach Anspruch 1 bestehend aus A) 1 bis 100 Gew.-% Polyalkylenglykol(e) und B) 0 bis 99 Gew.-% Lösungsmittel und C) 0 bis 50 Gew.-% weitere Hilfs- und Zusatzstoffe. Cutting oil according to claim 1 consisting of A) 1 to 100 wt .-% polyalkylene glycol (s) and B) 0 to 99 wt .-% of solvent and C) 0 to 50 wt .-% further auxiliaries and additives. Schneidöl nach Anspruch 1 oder 2 mit mindestens einem Polyalkylenglykol mit einem EO/PO-Gewichtsverhältnis von 80 : 20 bis 40 : 60.Cutting oil according to claim 1 or 2 with at least one polyalkylene glycol having an EO / PO weight ratio of 80:20 to 40:60. Schneidöl nach zumindest einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens ein Polyalkyenglykol enthalten ist, das eine mittlere Molmasse von 2.000 bis 30.000 aufweist.Cutting oil according to at least one of claims 1 to 3, characterized in that at least one polyalkylene glycol is contained, which has an average molecular weight of 2,000 to 30,000. Schneidöl nach zumindest einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass mindestens ein Polyalkyenglykol enthalten ist, welches Glyzerin, Trimethylolpropan, Pentaerythrit, Diglycerin, Triglycerin, Ditrimethylolpropan, Dipentaerythrit oder Sorbitol als mehrwertigen Startalkohol aufweist.Cutting oil according to at least one of claims 1 to 4, characterized in that at least one polyalkylene glycol is present, which glycerol, trimethylolpropane, pentaerythritol, diglycerol, triglycerol, ditrimethylolpropane, dipentaerythritol or sorbitol has as a polyvalent starter alcohol. Schneidöl nach Anspruch 5, dadurch gekennzeichnet, dass mindestens ein Polyalkyenglykol Pentaerythrit als mehrwertigen Startalkohol aufweist.Cutting oil according to claim 5, characterized in that at least one polyalkylene glycol has pentaerythritol as a polyvalent starting alcohol. Verwendung eines Schneidöls nach mindestens einem der Ansprüche 1 bis 6 in Sägeanlagen.Use of a cutting oil according to at least one of claims 1 to 6 in sawing plants. Verwendung eines Schneidöls nach mindestens einem der Ansprüche 1 bis 6 in Bandsägeanlagen zum Sägen von Polyurethanschäumen.Use of a cutting oil according to at least one of claims 1 to 6 in band sawing machines for sawing polyurethane foams. Zugeschnittene Polyurethanschaumteile, erhalten durch Sägen von Polyurethanschäumen unter Verwendung von Schneidölen gemäß zumindest einem der Ansprüche 1 bis 6.Tailored polyurethane foam parts obtained by sawing polyurethane foams using cutting oils according to at least one of claims 1 to 6. Verwendung von zugeschnittenen Polyurethanschaumteilen gemäß Anspruch 9 zur Herstellung von Gegenständen mit guten Brandeigenschaften.Use of cut polyurethane foam parts according to claim 9 for the production of articles with good fire properties. Verwendung von zugeschnittenen Polyurethanschaumteilen gemäß Anspruch 9 zur Herstellung von Möbelstücken.Use of cut polyurethane foam parts according to claim 9 for the production of furniture.
EP08156413A 2007-07-18 2008-05-19 Silicon-free cutting oil and its use Withdrawn EP2017328A3 (en)

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