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DE10011388A1 - Open-cell melamine-formaldehyde foam with low oil and water absorption for use, e.g. in sound-proofing buildings or vehicles, has a cell structure completely or partly coated with fluoroalkyl ester - Google Patents

Open-cell melamine-formaldehyde foam with low oil and water absorption for use, e.g. in sound-proofing buildings or vehicles, has a cell structure completely or partly coated with fluoroalkyl ester

Info

Publication number
DE10011388A1
DE10011388A1 DE10011388A DE10011388A DE10011388A1 DE 10011388 A1 DE10011388 A1 DE 10011388A1 DE 10011388 A DE10011388 A DE 10011388A DE 10011388 A DE10011388 A DE 10011388A DE 10011388 A1 DE10011388 A1 DE 10011388A1
Authority
DE
Germany
Prior art keywords
foam
fluoroalkyl ester
cell
open
vehicles
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.)
Ceased
Application number
DE10011388A
Other languages
German (de)
Inventor
Werner Lenz
Dieter Stoehr
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DE10011388A priority Critical patent/DE10011388A1/en
Publication of DE10011388A1 publication Critical patent/DE10011388A1/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/05—Open cells, i.e. more than 50% of the pores are open
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08J2361/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08J2361/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

Open-cell melamine resin foam (MF foam) in which the surface of the cell structure is completely or partly coated with a fluoroalkyl ester. An Independent claim is also included for a process for the production of MF foam by spraying or impregnating the foam with an aqueous emulsion of a fluoroalkyl ester, then squeezing off excess liquid and drying at 40-200 deg C.

Description

Die Erfindung betrifft einen offenzelligen Melaminharz-Schaum­ stoff mit verminderter Öl- und Wasseraufnahme.The invention relates to an open-cell melamine resin foam fabric with reduced oil and water absorption.

Schaumstoffe aus Melamin/Formaldehyd-Kondensationsprodukten ("MF-Schaumstoffe") zeichnen sich durch eine hervorragende Schallabsorption aus. Sie werden daher vorwiegend im Baubereich, daneben aber auch im Automobil- und Schiffsbau eingesetzt. Auf­ grund ihrer Offenzelligkeit nehmen sie leicht Flüssigkeiten wie Wasser, Kohlenwasserstoffe und Öle auf, was zu Nachteilen in den genannten Anwendungsgebieten führt.Foams made from melamine / formaldehyde condensation products ("MF foams") are characterized by an excellent Sound absorption off. They are therefore mainly used in construction, but also used in automotive and shipbuilding. On Because of their open cells, they easily take liquids such as Water, hydrocarbons and oils on what disadvantages in the leads mentioned application areas.

Am EP-A 633 283 ist bekannt, dass die Wasseraufnahme von MF- Schaumstoffen durch Beschichten des Schaumstoff-Gerüsts mit einem Hydrophobierungsmittel, insbesondere mit einer wässrigen Emulsion eines Silikonharzes reduziert werden kann. Es hat sich jedoch gezeigt, dass damit die Ölaufnahme kaum vermindert wird.It is known from EP-A 633 283 that the water absorption of MF Foams by coating the foam framework with a Water repellents, in particular with an aqueous emulsion of a silicone resin can be reduced. However, it has shown that the oil absorption is hardly reduced.

Der Erfindung lag daher die Aufgabe zugrunde, nicht nur die Wasser- sondern auch die Ölaufnahme von MF-Schaumstoffen zu vermindern.The invention was therefore based on the object, not only the Water but also the oil absorption of MF foams Reduce.

Diese Aufgabe ist erfindungsgemäß gelöst bei MF-Schaumstoffen, bei denen die Oberfläche des Zellgerüsts ganz oder teilweise mit einem Fluoralkylester beschichtet ist, vorzugsweise mit 0,001 bis 5, insbesondere mit 0,01 bis 1 Gew.-%.This object is achieved according to the invention in MF foams, in which the surface of the cell framework is wholly or partly with is coated with a fluoroalkyl ester, preferably 0.001 to 5, in particular with 0.01 to 1 wt .-%.

MF-Schaumstoffe sind an sich bekannt, z. B. aus EP-B 71 672. Sie werden nach EP-B 17 671 hergestellt durch Verschäumen einer wässrigen Lösung eines MF-Kondensationsprodukts, welche einen Emulgator, ein saures Härtungsmittel und ein Treibmittel, vorzugsweise einen C5-C7-Kohlenwasserstoff, enthält, und Aushärten des MF-Kondensats bei erhöhter Temperatur. Diese Schaumstoffe werden nun erfindungsgemäß mit einer wässrigen Emulsion des Fluoralkylesters eingesprüht oder getränkt, überschüssige Flüssigkeit wird abgequetscht und der Schaumstoff wird bei Temperaturen zwischen 40 und 200°C, vorzugsweise zwischen 100 und 160°C getrocknet. Die wässrige Emulsion des Fluoralkylesters ist vorzugsweise 0,1 bis 20, insbesondere 0,01 bis 1 gew.-%ig.MF foams are known per se, e.g. B. from EP-B 71 672. They are prepared according to EP-B 17 671 by foaming an aqueous solution of an MF condensation product which contains an emulsifier, an acidic curing agent and a blowing agent, preferably a C 5 -C 7 hydrocarbon , and curing the MF condensate at elevated temperature. These foams are then sprayed or soaked with an aqueous emulsion of the fluoroalkyl ester according to the invention, excess liquid is squeezed off and the foam is dried at temperatures between 40 and 200 ° C., preferably between 100 and 160 ° C. The aqueous emulsion of the fluoroalkyl ester is preferably 0.1 to 20% by weight, in particular 0.01 to 1% by weight.

Die Fluoralkylester sind vorzugsweise perfluoriert. Bevorzugt sind C1-C10-Ester der (Meth)acrylsäure, der Poly(meth)acrylsäure, der Phosphorsäure und von C1-C6-Fettsäuren. Geeignete Handels­ produkte sind z. B. PERSISTOL O der BASF und DIPOLIT 480 der Fa. Rotta. Die in den Beispielen genannten Prozentzahlen beziehen sich auf das Gewicht.The fluoroalkyl esters are preferably perfluorinated. C 1 -C 10 esters of (meth) acrylic acid, poly (meth) acrylic acid, phosphoric acid and of C 1 -C 6 fatty acids are preferred. Suitable commercial products are e.g. B. PERSISTOL O from BASF and DIPOLIT 480 from Rotta. The percentages given in the examples relate to the weight.

BeispieleExamples

Als Fluoralkylester wurde Dipolit 480 (Ra. Rotta) und als Silikonharz wurde Sitren 595 (Fa. Goldschmidt) eingesetzt. MF- Schaumstoffblöcke der Abmessung 10 × 10 × 2 cm wurden folgendermaßen vorbehandelt. Die Schaumstoffblöcke wurden 1 min lang in eine wässrige Emulsion eingetaucht, überschüssige Flüssigkeit wurde mittels eines Zweiwalzenstuhls abgequetscht und die Schaumstoff­ blöcke wurden 60 min lang bei 160°C getrocknet.Dipolit 480 (Ra. Rotta) was used as the fluoroalkyl ester and as Silicone resin was used in Sitren 595 (from Goldschmidt). MF Foam blocks measuring 10 x 10 x 2 cm were made as follows pre-treated. The foam blocks were placed in a for 1 minute aqueous emulsion was immersed, excess liquid was squeezed off using a two-roll mill and the foam blocks were dried at 160 ° C for 60 min.

Die Ölaufnahme der Schaumstoffblöcke wurde folgendermaßen durch­ geführt:The oil absorption of the foam blocks was carried out as follows guided:

Die vorbehandelten Schaumstoffblöcke wurden schwimmend in ein Bad eines Motorenschmieröls SAE-Viskositätsklasse 10 W gelegt. Nach 2,5 h wurden die Schaumstoffblöcke aus dem Bad entnommen und das Öl 10 min lang abtropfen lassen. Der Schaumstoff wurde jeweils vor und nach dem Schwimmtest gewogen.The pretreated foam blocks were floated in a bath of an engine lubricating oil SAE viscosity class 10 W. To The foam blocks were removed from the bath for 2.5 h and this Drain the oil for 10 minutes. The foam was each weighed before and after the swim test.

Die Tabelle zeigt die Ergebnisse:
The table shows the results:

Die Versuche Nr. 2, 3 und 4 sind erfindungsgemäß.Experiments No. 2, 3 and 4 are according to the invention.

Claims (6)

1. Offenzelliger Melaminharz-Schaumstoff (MF-Schaumstoff), dadurch gekennzeichnet, daß die Oberfläche seines Zellgerüsts ganz oder teilweise mit einem Fluoralkylester beschichtet ist.1. Open-cell melamine resin foam (MF foam), characterized in that the surface of its cell structure is completely or partially coated with a fluoroalkyl ester. 2. MF-Schaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß der Gehalt an Fluoralkylester 0,001 bis 5 Gew.-% beträgt.2. MF foam according to claim 1, characterized in that the content of fluoroalkyl ester is 0.001 to 5% by weight. 3. MF-Schaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß der Fluoralkylester perfluoriert ist.3. MF foam according to claim 1, characterized in that the fluoroalkyl ester is perfluorinated. 4. MF-Schaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß der Fluoralkylester ein perfluorierter C1-C10-Alkylester der (Meth-)Acrylsäure, der Poly(meth-)acrylsäure, der Phosphor­ säure oder einer C1-C6-Fettsäure ist.4. MF foam according to claim 1, characterized in that the fluoroalkyl ester is a perfluorinated C 1 -C 10 alkyl ester of (meth) acrylic acid, poly (meth) acrylic acid, phosphoric acid or a C 1 -C 6 - Is fatty acid. 5. Verfahren zur Herstellung des MF-Schaumstoff nach Anspruch 1, dadurch gekennzeichnet, daß man den Schaumstoff mit einer wässrigen Emulsion des Fluoralkylesters einsprüht oder tränkt, überschüssige Flüssigkeit abquetscht und den Schaum­ stoff bei Temperaturen zwischen 40 und 200°C trocknet.5. A method for producing the MF foam according to claim 1, characterized in that the foam with a sprayed aqueous emulsion of the fluoroalkyl ester or soaks, squeezes excess liquid and the foam Dries fabric at temperatures between 40 and 200 ° C. 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Emulsion 0,1 bei 20 gew.-%ig ist.6. The method according to claim 5, characterized in that the Emulsion is 0.1 at 20 wt .-%.
DE10011388A 1999-04-30 2000-03-09 Open-cell melamine-formaldehyde foam with low oil and water absorption for use, e.g. in sound-proofing buildings or vehicles, has a cell structure completely or partly coated with fluoroalkyl ester Ceased DE10011388A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10011388A DE10011388A1 (en) 1999-04-30 2000-03-09 Open-cell melamine-formaldehyde foam with low oil and water absorption for use, e.g. in sound-proofing buildings or vehicles, has a cell structure completely or partly coated with fluoroalkyl ester

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919636 1999-04-30
DE10011388A DE10011388A1 (en) 1999-04-30 2000-03-09 Open-cell melamine-formaldehyde foam with low oil and water absorption for use, e.g. in sound-proofing buildings or vehicles, has a cell structure completely or partly coated with fluoroalkyl ester

Publications (1)

Publication Number Publication Date
DE10011388A1 true DE10011388A1 (en) 2000-11-02

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Country Status (2)

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JP (1) JP2000351868A (en)
DE (1) DE10011388A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10209601A1 (en) * 2002-03-05 2003-09-18 Faist Automotive Gmbh & Co Kg Process for producing a molded foam part
DE10220896A1 (en) * 2002-05-10 2003-11-20 Faist Automotive Gmbh & Co Kg Process for producing a foam molding and binder therefor
WO2007110361A1 (en) * 2006-03-28 2007-10-04 Basf Se Hydrophobically modified melamine resin foam
WO2008037600A1 (en) * 2006-09-25 2008-04-03 Basf Se Erosion-resistant hydrophobic and oleophobic melamine resin foam
DE202008004879U1 (en) 2008-04-08 2008-06-05 Basf Se Breathing air filter as protection against bacteria, viruses and pollen
DE202008005282U1 (en) 2008-04-16 2008-07-31 Basf Se Toothbrush with a mouthpiece made of open-cell melamine-formaldehyde foam
WO2008095932A1 (en) 2007-02-08 2008-08-14 Basf Se Irrigation system and method for irrigating or fertilizing
WO2010147710A1 (en) * 2009-06-16 2010-12-23 The Boeing Company Flame propagation resistant foam and method
DE102010009588A1 (en) 2010-02-26 2011-09-01 Basf Se Resonance testing apparatus for testing wear/defect in e.g. porcelain, during manufacturing of music instrument e.g. Xylophone, to reduce noise and vibration in instrument, has carrier made of foam material to support vibratory bodies
DE102011005334A1 (en) 2010-03-12 2011-09-15 Basf Se Preparing hydrophobic melamine-/formaldehyde resin foam, useful e.g. in all types of vehicles on land, water and in air and space, comprises washing melamine-/formaldehyde resin foam with water, squeezing water and drying the washed foam
US8173716B2 (en) 2007-03-06 2012-05-08 Basf Se Open-cell foam modified with hydrophobines
US8324285B2 (en) * 2007-11-06 2012-12-04 The Boeing Company Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making
CN114752102A (en) * 2022-03-11 2022-07-15 广州大学 Oil-absorbing foam with pH/thermal response, flame retardance and sterilization functions as well as preparation method and application thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7629043B2 (en) 2003-12-22 2009-12-08 Kimberly-Clark Worldwide, Inc. Multi purpose cleaning product including a foam and a web

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WO1991001791A1 (en) * 1989-07-24 1991-02-21 Gelman Sciences Technology, Inc. Process for treating a porous substrate to achieve improved water and oil repellency
US5296282A (en) * 1991-08-12 1994-03-22 E. I. Du Pont De Nemours And Company Degradable repellant coated articles
US5217802A (en) * 1992-03-17 1993-06-08 Millipore Corporation Hydrophobic polymeric membrane composites
DE69324605T2 (en) * 1993-03-26 1999-08-26 W.L. Gore & Associates METHOD FOR PRODUCING COATED ITEMS AND THE USE THEREOF
JP3354220B2 (en) * 1993-07-09 2002-12-09 日清紡績株式会社 Melamine resin foam
JP2854223B2 (en) * 1993-09-08 1999-02-03 ジャパンゴアテックス株式会社 Oil repellent waterproof ventilation filter
DE19619397A1 (en) * 1996-05-14 1997-11-20 Basf Ag Expandable polystyrene particles
JPH101554A (en) * 1996-06-18 1998-01-06 Nisshinbo Ind Inc Melamine resin foam excellent in oil repellency

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10209601A1 (en) * 2002-03-05 2003-09-18 Faist Automotive Gmbh & Co Kg Process for producing a molded foam part
DE10209601B4 (en) * 2002-03-05 2008-11-20 Faist Automotive Gmbh & Co. Kg Process for producing a foam molding
DE10220896A1 (en) * 2002-05-10 2003-11-20 Faist Automotive Gmbh & Co Kg Process for producing a foam molding and binder therefor
WO2007110361A1 (en) * 2006-03-28 2007-10-04 Basf Se Hydrophobically modified melamine resin foam
WO2008037600A1 (en) * 2006-09-25 2008-04-03 Basf Se Erosion-resistant hydrophobic and oleophobic melamine resin foam
US7908984B2 (en) 2007-02-08 2011-03-22 Basf Se Irrigation system and method for irrigating or fertilizing
WO2008095932A1 (en) 2007-02-08 2008-08-14 Basf Se Irrigation system and method for irrigating or fertilizing
US8173716B2 (en) 2007-03-06 2012-05-08 Basf Se Open-cell foam modified with hydrophobines
US8324285B2 (en) * 2007-11-06 2012-12-04 The Boeing Company Hydrophobic and/or oleophobic open cell polyimide acoustic and thermal insulation foams and methods of making
DE202008004879U1 (en) 2008-04-08 2008-06-05 Basf Se Breathing air filter as protection against bacteria, viruses and pollen
DE202008005282U1 (en) 2008-04-16 2008-07-31 Basf Se Toothbrush with a mouthpiece made of open-cell melamine-formaldehyde foam
WO2010147710A1 (en) * 2009-06-16 2010-12-23 The Boeing Company Flame propagation resistant foam and method
US9347004B2 (en) 2009-06-16 2016-05-24 The Boeing Company Flame propagation resistant foam and method
EP3293223A1 (en) * 2009-06-16 2018-03-14 The Boeing Company Preparation of a flame propagation resistant foam
DE102010009588A1 (en) 2010-02-26 2011-09-01 Basf Se Resonance testing apparatus for testing wear/defect in e.g. porcelain, during manufacturing of music instrument e.g. Xylophone, to reduce noise and vibration in instrument, has carrier made of foam material to support vibratory bodies
DE102011005334A1 (en) 2010-03-12 2011-09-15 Basf Se Preparing hydrophobic melamine-/formaldehyde resin foam, useful e.g. in all types of vehicles on land, water and in air and space, comprises washing melamine-/formaldehyde resin foam with water, squeezing water and drying the washed foam
CN114752102A (en) * 2022-03-11 2022-07-15 广州大学 Oil-absorbing foam with pH/thermal response, flame retardance and sterilization functions as well as preparation method and application thereof

Also Published As

Publication number Publication date
JP2000351868A (en) 2000-12-19

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Owner name: BASF SE, 67063 LUDWIGSHAFEN, DE

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