EP1799743A1 - Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione - Google Patents

Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione

Info

Publication number
EP1799743A1
EP1799743A1 EP05779179A EP05779179A EP1799743A1 EP 1799743 A1 EP1799743 A1 EP 1799743A1 EP 05779179 A EP05779179 A EP 05779179A EP 05779179 A EP05779179 A EP 05779179A EP 1799743 A1 EP1799743 A1 EP 1799743A1
Authority
EP
European Patent Office
Prior art keywords
uretdione
hydroxyl
diisocyanate
terminated
polyurethane compounds
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Withdrawn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
EP05779179A
Other languages
German (de)
English (en)
Inventor
Emmanouil Spyrou
Rainer LOMÖLDER
Dirk Hoppe
Christoph Nacke
André RAUKAMP
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Publication of EP1799743A1 publication Critical patent/EP1799743A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/725—Combination of polyisocyanates of C08G18/78 with other polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups

Definitions

  • the invention relates to special hydroxyl-terminated polyurethane compounds containing uretdione groups for use in the plastics sector.
  • Uretdione group-containing polyurethane compositions are known.
  • DE 101 470 describes reaction products of aromatic uretdione group-containing diisocyanates and difunctional hydroxyl compounds. The use of diisocyanates is not mentioned.
  • DE 24 20 475 contains the description of a process for the preparation of powder coating crosslinkers consisting of uretdione group-containing diisocyanates, diisocyanates and difunctional hydroxyl compounds, the latter being limited in the molecular range from 62 to 300 g / mol.
  • EP 0 601 793 describes one-component adhesives comprising polyisocyanates containing uretdione groups, polyisocyanates and polyols, the maximum ratio of uretdione groups to free alcohols being 1: 1 in the end product.
  • EP 0 640 634 describes uretdione group-containing polyurethane compositions which additionally contain isocyanurate groups. Such isocyanurate groups lead to less flexibility.
  • EP 1 063 251 describes a process for the preparation of polyurethane compounds containing uretdione groups.
  • uretdione-group-containing polyisocyanates and diisocyanates are mixed, the diisocyanate component making up at most 70% by weight of the sum of the two components.
  • the object of this invention was to find special uretdione group-containing polyurethane compounds which are simultaneously yellowing free, have a high molecular weight and are more reactive than comparable known polyurethane compositions.
  • polyurethane compounds according to the invention based on aliphatic, (cyclo) aliphatic and cycloaliphatic polyisocyanates, polyisocyanates containing uretdione groups and polyols are then simultaneously yellowing, high molecular weight and more reactive than conventional products, if in this polyurethane compound the ratio of uretdione and Alcohol groups is greater than 1: 1.
  • the invention relates to hydroxyl-terminated uretdione-containing polyurethane compounds containing the reaction product of
  • A) aliphatic, (cyclo) aliphatic and / or cycloaliphatic uretdione group-containing polyisocyanates; wherein in the mixture of A) and B), A) has a content of more than 70 wt .-%;
  • Alcohol groups is greater than 1: 1;
  • auxiliaries and additives may be included.
  • Suitable polyisocanates A) are aliphatic, (cyclo) aliphatic and / or cycloaliphatic polyisocyanates having at least two NCO groups, in particular: isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), diisocyanatodicylcohexylmethane (H 12 MDI) 2-methylpentane diisocyanate (MPDI), 2,2,4-trimethylhexamethylene diisocyanate / 2,4,4-trimethylhexamethylene diisocyanate (TMDI), norbornane diisocyanate (NBDI), and / or methylene diphenyl diisocyanate (MDI) as well as tetramethylxylylene diisocyanate (TMXDI) are preferably used. Very particular preference is given to IPDI, HDI and H 12 MDI.
  • Uretdione group-containing polyisocyanates B are well known and are described, for example, in US 4,476,054, US 4,912,210, US 4,929,724 and EP 0 417 603.
  • soluble dimerization catalysts such as.
  • the reaction - optionally carried out in solvents, but preferably in the absence of solvents - is stopped when a desired conversion is achieved by addition of catalyst poisons. Excess monomeric isocyanate is subsequently separated by short path evaporation. If the catalyst is volatile enough, that can Be removed reaction mixture in the course of monomer removal from the catalyst. The addition of catalyst poisons can be dispensed with in this case.
  • a wide range of aliphatic, (cyclo) aliphatic and / or cycloaliphatic isocyanates is suitable for the preparation of polyisocyanates containing uretdione groups.
  • IPDI isophorone diisocyanate
  • HDI hexamethylene diisocyanate
  • H 12 MDI diisocyanatodicyclohexylmethane
  • MPDI 2-methylpentane diisocyanate
  • TMDI 2,2,4-trimethylhexamethylene diisocyanate / 2,4,4-trimethylhexamethylene diisocyanate
  • NBDI Norbornane diisocyanate
  • MDI methylene diphenyl diisocyanate
  • TMXDI tetramethylxylylene diisocyanate
  • hydroxyl-containing oligomeric or polymeric polyols C) having an OH number of 20 to 500 (in mg KOH / gram) and a molecular weight of at least 301 g / mol
  • preference is given to using polyesters, polyethers, polyacrylates, polyurethanes, polyethers and / or polycarbonates Particularly preferred are hydroxyl-containing polyesters having an OH number of 20 to 150 mg KOH / gram and an average molecular weight of 500 to 6,000 g / mol.
  • mixtures of such polyols can be used.
  • auxiliaries and additives such as leveling agents, eg. As polysilicone or acrylates, light stabilizers z. As sterically hindered amines, or other auxiliaries, such as. As described in EP 0 669 353, in a total amount of 0.05 to 5 wt .-%, fillers and pigments, such as. Titanium dioxide may be added in an amount of up to 50% by weight of the total composition.
  • fillers and pigments such as. Titanium dioxide may be added in an amount of up to 50% by weight of the total composition.
  • catalysts such as are already known in polyurethane chemistry may be included. These are mainly organometallic catalysts, such as. As dibutyltin dilaurate, or tertiary amines, such as. B. 1,4-diazabicyclo [2.2.2,] octane, in amounts of 0.001 to 1 wt .-%.
  • the reaction of the polyisocyanates A) and the uretdione-bearing polyisocyanates B) to the polyurethane compounds of the invention involves the reaction of the free NCO groups of A) and B) with hydroxyl-containing oligomers or polymers of C).
  • the ratio of free NCO groups and alcohol groups be less than 1: 1.
  • the ratio of the uretdione groups to the now reduced (by the reaction with free NCO groups) alcohol groups should be greater than 1: 1.
  • the invention also provides a process for the preparation of the polyurethane compounds according to the invention in solution.
  • the inventive preparation of the polyurethane compounds according to the invention in solution can be carried out by reacting A) and B) with C) in suitable aggregates, such as. B. stirred tanks or static mixer done.
  • the reaction temperature is from 40 to 220 ° C, preferably 40 to 120 ° C.
  • solvents are known all non-isocyanate-reactive liquids, such as. For example, acetone, ethyl acetate, butyl acetate, solvesso, N-methylpyrolidine, dimethylformamide, methylene chloride, tetrahydrofuran, dioxane, methoxypropyl acetate and toluene.
  • the solvent is removed by suitable methods, for. As distillation, short path distillation or spray drying and thus obtained the desired product in pure form.
  • the invention also provides a process for the solvent-free preparation of the polyurethane compounds according to the invention.
  • reaction of A) and B) with C) takes place in mechanical mixing units, in particular in an extruder, intensive kneader, intensive mixer or static mixer by intensive mixing and brief reaction with heat and subsequent isolation of the final product by rapid cooling.
  • the principle of the process is that the reaction of the starting compounds is carried out continuously, in particular in an extruder, intensive kneader, intensive mixer or static mixer by intensive mixing and short-term reaction with heat.
  • the reactants are doing briefly with heat at temperatures of 25 ° C to 325 ° C, preferably from 50 to 250 ° C, completely most preferably from 70 to 220 ° C for the reaction.
  • these residence time and temperature values may also occupy other preferred ranges.
  • a continuous after-reaction is followed. By subsequent rapid cooling, it is then possible to obtain the end product.
  • extruders such as single- or multi-screw extruders, in particular twin-screw extruders, planetary roller extruders or ring extruders, intensive kneaders, intensive mixers, or static mixers are particularly suitable for the process according to the invention and are preferably used.
  • the starting compounds are added to the aggregates usually in separate product streams. If there are more than two product streams, these can also be bundled. Various hydroxyl-containing polymers can be combined to form a product stream. It is also possible to additionally add catalysts and / or additives such as leveling agents, stabilizers, acid scavengers or adhesion promoters to this product stream. It is likewise possible to combine polyisocyanates and the uretdiones of polyisocyanates with catalysts and / or additives such as leveling agents, stabilizers, acid scavengers or adhesion promoters in a product stream. The material flows can also be divided and thus supplied to the units in different proportions at different locations. In this way, concentration gradients are set deliberately, which can bring about the completeness of the reaction. The entry point of the product streams in the order can be handled variable and time offset.
  • the rapid cooling downstream of the reaction can be integrated in the reaction part, in the form of a multi-housing embodiment as in extruders or Conterna machines. You can also use: tube bundles, pipe coils, chill rolls, air conveyors, metal conveyor belts and water baths, with and without a downstream granulator.
  • the preparation is first brought to a suitable temperature by further cooling by means of the corresponding aforementioned equipment.
  • the invention also provides the use of the uretdione-containing polyurethane compounds according to the invention for the preparation of thermoplastic polyurethanes (TPU) and molding compositions.
  • TPU thermoplastic polyurethanes
  • thermoplastic polyurethane molding compositions wherein the molding compositions hydroxyl-terminated, uretdione-containing polyurethane compounds, the reaction product of
  • A) aliphatic, (cyclo) aliphatic and / or cycloaliphatic uretdione group-containing polyisocyanates; wherein in the mixture of A) and B), A) has a content of more than 70 wt .-%;
  • the molding compositions may also contain auxiliaries and additives and other polymers.
  • the uretdione-containing polyurethane compounds of the invention with polymers, optionally with polycarbonates, acrylonitrile copolymers, acrylonitrile-butadiene-styrene Polymers, acrylonitrile-styrene-acrylic rubber molding compositions, copolymers of ethylene and / or propylene and acrylic or methacrylic acid or sodium or zinc salts thereof, and copolymers of ethylene and / or propylene and acrylic or methacrylic esters, and auxiliaries and additives such , As UV stabilizers and antioxidants are mixed.
  • the molding compositions according to the invention can be prepared by mixing the TPU granules produced by methods known in principle with the respective additives and compounding in a manner known to those skilled in the art by reextrusion. Subsequently, the resulting molding compound can be granulated and converted by (cold) grinding in a sinterable powder, the z. B.
  • the molding compositions of the invention are suitable for the production of various Shaped bodies, eg films and / or sintered foils
  • the foils and / or sintered foils produced from the polyurethane molding compositions according to the invention are suitable, for example, for use as surface cladding in means of transport (eg aircraft, cars, ships and railways).
  • stream 1 consisted of DYNACOLL 7380 (OH number 30 mg KOH / g),
  • Stream 3 consisted of the catalyst DBTL. The total amount, based on the total formulation was 0.10%.
  • Stream 2 was fed into the following housing at a rate of 199 g / h (temperature of the stream 70 ° C).
  • Stream 3 was injected into stream 2 before entering the extruder.
  • the extruder used consisted of 8 housings which could be heated and cooled separately. Housing 1: 20 - 90 ° C, housing 2-8: 90 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne des composés polyuréthanne spécifiques à terminaison hydroxyle, contenant des groupes uretdione et destinés à l'industrie des plastiques.
EP05779179A 2004-10-07 2005-09-08 Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione Withdrawn EP1799743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004048773A DE102004048773A1 (de) 2004-10-07 2004-10-07 Hydroxylterminierte uretdiongruppenhaltige Polyurethanverbindungen
PCT/EP2005/054444 WO2006040226A1 (fr) 2004-10-07 2005-09-08 Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione

Publications (1)

Publication Number Publication Date
EP1799743A1 true EP1799743A1 (fr) 2007-06-27

Family

ID=35385415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05779179A Withdrawn EP1799743A1 (fr) 2004-10-07 2005-09-08 Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione

Country Status (6)

Country Link
US (1) US20080269415A1 (fr)
EP (1) EP1799743A1 (fr)
JP (1) JP2008516027A (fr)
CN (1) CN1826364A (fr)
DE (1) DE102004048773A1 (fr)
WO (1) WO2006040226A1 (fr)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004058173A1 (de) * 2004-12-02 2006-06-08 Degussa Ag Lagerstabile aliphatische, cycloaliphatische oder (cyclo)aliphatische Diisocyanate
EP1844917A3 (fr) 2006-03-24 2008-12-03 Entex Rust & Mitschke GmbH Procédé pour traiter des produits qui doivent être dégazés
FR2910877B1 (fr) 2006-12-28 2009-09-25 Eurocopter France Amelioration aux rotors de giravions equipes d'amortisseurs interpales
EP1997608A3 (fr) 2007-05-16 2009-05-27 Entex Rust & Mitschke GmbH Procédé de traitement de produits de dégazage
US8629231B2 (en) * 2009-05-20 2014-01-14 Basf Coatings Gmbh Methods of making oligomers, coating compositions containing them, and coated articles
US8293836B2 (en) 2009-05-20 2012-10-23 Basf Coatings Gmbh Curable coating composition containing a compound having a uretdione group and a different functional group and cured coatings
DE102010029235A1 (de) 2010-05-21 2011-11-24 Evonik Degussa Gmbh Hydrophile Polyisocyanate
DE102010038308A1 (de) 2010-07-23 2012-01-26 Evonik Degussa Gmbh Lithium-Zellen und -Batterien mit verbesserter Stabilität und Sicherheit, Verfahren zu ihrer Herstellung und Anwendung in mobilen und stationären elektrischen Energiespeichern
DE102010041247A1 (de) 2010-09-23 2012-03-29 Evonik Degussa Gmbh Verfahren zur Herstellung von lagerstabilen Polyurethan-Prepregs und daraus hergestellte Formkörper aus Polyurethanzusammensetzung in Lösung
DE102011006163A1 (de) 2011-03-25 2012-09-27 Evonik Degussa Gmbh Lagerstabile Polyurethan-Prepregs und daraus hergestellte Formkörper aus Polyurethanzusammensetzung mit flüssigen Harzkomponenten
DE102011112081A1 (de) 2011-05-11 2015-08-20 Entex Rust & Mitschke Gmbh Verfahren zur Verarbeitung von Elasten
DE102011112080A1 (de) 2011-09-03 2013-03-07 Entex Rust & Mitschke Gmbh Einarbeitung von Additiven und Füllstoffen in einem Planetwalzenextruder oder einem Planetwalzenextruderabschnitt
US9796876B2 (en) 2012-06-20 2017-10-24 Evonik Degussa Gmbh Coating material with high scratch resistance
WO2014056553A1 (fr) 2012-10-11 2014-04-17 Entex Gmbh Rust & Mitschke Gmbh Extrudeuse de transformation de matières plastiques ayant tendance à coller
DE102012219324A1 (de) 2012-10-23 2014-04-24 Evonik Industries Ag Zusammensetzungen umfassend alkoxysilanhaltige Isocyanateund saure Stabilisatoren
JP6360046B2 (ja) * 2013-05-24 2018-07-18 ニチバン株式会社 ポリウレタン系粘着剤シートの製造方法及び熱解離結合含有ポリウレタン
DE102017001093A1 (de) 2016-04-07 2017-10-26 Entex Rust & Mitschke Gmbh Entgasen bei der Extrusion von Kunststoffen mit Filterscheiben aus Sintermetall
DE102015001167A1 (de) 2015-02-02 2016-08-04 Entex Rust & Mitschke Gmbh Entgasen bei der Extrusion von Kunststoffen
DE102015008406A1 (de) 2015-07-02 2017-04-13 Entex Rust & Mitschke Gmbh Verfahren zur Bearbeitung von Produkten im Extruder
DE102016002143A1 (de) 2016-02-25 2017-08-31 Entex Rust & Mitschke Gmbh Füllteilmodul in Planetwalzenextruderbauweise
EP3263616B8 (fr) 2016-06-27 2020-01-15 Evonik Operations GmbH Moyens de revêtement fonctionnalisés par un alkoxysilane et contenant un allophanate
DE102017004563A1 (de) 2017-03-05 2018-09-06 Entex Rust & Mitschke Gmbh Entgasen beim Extrudieren von Polymeren
DE102017003681A1 (de) 2017-04-17 2018-10-18 Entex Rust & Mitschke Gmbh Kühlen beim Extrudieren von Schmelze
DE102017005999A1 (de) 2017-05-28 2018-11-29 Entex Rust & Mitschke Gmbh Herstellung von essbaren Wurstpellen aus Kollagen oder gleichartigen Stoffen durch Extrudieren
DE102017005998A1 (de) 2017-06-23 2018-12-27 Entex Rust & Mitschke Gmbh Chemische Prozeßführung für fließfähiges Einsatzgut in einem Planetwalzenextruder
DE102017006638A1 (de) 2017-07-13 2019-01-17 Entex Rust & Mitschke Gmbh Füllteilmodul in Planetwalzenextruderbauweise
DE102018001412A1 (de) 2017-12-11 2019-06-13 Entex Rust & Mitschke Gmbh Entgasen beim Extrudieren von Stoffen, vorzugsweise von Kunststoffen
WO2019166125A1 (fr) 2018-02-28 2019-09-06 Entex Rust & Mitschke Gmbh Procédé pour la préparation et la transformation de polymères et de mélanges polymères dans une extrudeuse planétaire de structure modulaire
CN111886271A (zh) * 2018-03-23 2020-11-03 科思创有限公司 包含分散脲二酮预聚物、反应物和唑类的水性可固化组合物
CN110305294B (zh) * 2019-07-15 2021-04-20 万华化学集团股份有限公司 一种存储稳定的含有脲二酮基团的多异氰酸酯的制备方法
EP3892441A1 (fr) 2020-04-07 2021-10-13 Entex Rust & Mitschke GmbH La mise à niveau d'une installation d'extrudeuse
DE102020007239A1 (de) 2020-04-07 2021-10-07 E N T E X Rust & Mitschke GmbH Kühlen beim Extrudieren von Schmelzen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2312391A1 (de) * 1973-03-13 1974-09-19 Bayer Ag Pulverfoermige, vernetzbare ueberzugsmittel
US5077371A (en) * 1989-11-01 1991-12-31 Uniroyal Chemical Company, Inc. Low free toluene diisocyanate polyurethanes
DE4220419A1 (de) * 1992-06-22 1993-12-23 Bayer Ag Reaktive Polyurethane und ihre Verwendung
DE10205608A1 (de) * 2002-02-11 2003-08-21 Degussa Bei niedriger Temperatur härtbare feste uretdiongruppenhaltige Polyurethan-Pulverlackzusammensetzungen
DE10320267A1 (de) * 2003-05-03 2004-11-18 Degussa Ag Bei niedriger Temperatur härtbare feste uretdiongruppenhaltige Polyurethan-Pulverlackzusammensetzungen
DE10320266A1 (de) * 2003-05-03 2004-11-18 Degussa Ag Feste Uretdiongruppenhaltige Polyurethan-Pulverlackzusammensetzungen bei niedriger Temperatur härtbar
DE10346957A1 (de) * 2003-10-09 2005-05-04 Degussa Hochreaktive, flüssige uretdiongruppenhaltige Polyurenthansysteme, die bei niedriger Temperatur härtbar sind
DE10346958A1 (de) * 2003-10-09 2005-05-12 Degussa Uretdiongruppenhaltige Polyurethanzusammensetzungen, welche bei niedriger Temperatur härtbar sind
DE10347901A1 (de) * 2003-10-15 2005-05-19 Degussa Ag Polyurethan-Pulverlackbeschichtungen, welche feste uretdiongruppenhaltige Polyadditionsverbindungen enthalten, und ein Verfahren zu ihrer Herstellung
DE10348966A1 (de) * 2003-10-22 2005-06-02 Degussa Ag Hochreaktive Polyurethan-Pulverlackzusammensetzungen auf Basis epoxidgruppenterminierter, uretdiongruppenhaltiger Polyadditionsverbindungen
DE10348965A1 (de) * 2003-10-22 2005-05-25 Degussa Ag Epoxidgruppenhaltige Pulverlackzusammensetzungen, die bei niedrigen Temperaturen aushärten
DE102004020451A1 (de) * 2004-04-27 2005-12-01 Degussa Ag Uretdiongruppenhaltige Polyurethanzusammensetzungen, welche bei niedriger Temperatur härtbar sind und (teil-)kristalline Harze enthalten
DE102004020429A1 (de) * 2004-04-27 2005-11-24 Degussa Ag Uretdiongruppenhaltige Polyurethanzusammensetzungen, welche bei niedriger Temperatur härtbar sind und (teil-)kristalline Harze enthalten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006040226A1 *

Also Published As

Publication number Publication date
CN1826364A (zh) 2006-08-30
DE102004048773A1 (de) 2006-04-13
US20080269415A1 (en) 2008-10-30
WO2006040226A1 (fr) 2006-04-20
JP2008516027A (ja) 2008-05-15

Similar Documents

Publication Publication Date Title
WO2006040226A1 (fr) Composes polyurethanne a terminaison hydroxyle contenant des groupes uretdione
EP0669353B1 (fr) Produits de polyaddition contenant des groupes hydroxy- et uretdione, procédé de leur préparation et leur utilisation pour la préparation de vernis en poudre de polyuréthane à haute réactivité ne relâchant pas de produits de décomposition et vernis en poudre de polyuréthane obtenus par ce procédé
EP0669354B1 (fr) Procédé de préparation de produits de polyaddition contenant des groupes uretdione et leur utilisation dans des systèmes de vernis de polyuréthane
EP1861447B1 (fr) Composes de polyaddition a faible viscosite contenant des groupes uretdione, procede pour leur production et leur utilisation
EP0669355B1 (fr) Procédé de préparation de polyisocyanates bloqués et leur utilisation dans des systèmes de vernis de polyuréthane
DE102005013401A1 (de) Niedrigviskose uretdiongruppenhaltige Polyadditionsverbindungen, Verfahren zur Herstellung und Verwendung
EP1524283A2 (fr) Lacques de polyuréthane pulvérulentes contenant des compsosés de poly-addition ayant des groupes d'urethdione solides et un procédé pour leur préparation
DE102004011004A1 (de) Verfahren zur Herstellung fester, hochreaktiver Uretdiongruppen haltiger Polyurethanzusammensetzungen
DE19520731A1 (de) Thermoplastische Polyurethanharnstoff-Elastomere
EP2185618A1 (fr) Procédé de production de polyuréthanes dendritiques, hyperramifiés, par extrusion réactive
EP0195899A1 (fr) Procédé de préparation de corps moulés mats, non-bloquants à paroi mince à partir d'élastomères de polyuréthane linéaires thermoplastiques contenant des produits de polyaddition et leur utilisation
WO2021122280A1 (fr) Polyuréthane thermoplastique présentant un module de flexion élevé
EP1336629A2 (fr) Procédé pour la préparation de (meth)acrylates d'uréthane
EP1063269B1 (fr) Composés de polyaddition à terminaisons époxydes contenant des groupes uretdione, leur procédé de préparation et leur utilisation
EP1526147A1 (fr) Compositions de polyaddition solides contenant des groupes uretdione
DE19547878A1 (de) Hydroxyl-und uretdiongruppenhaltige Polyisocyanate
WO2021122287A1 (fr) Procédé de production de polyuréthanes semi-cristallins à haute enthalpie de réaction
EP1170316A1 (fr) Procédé de préparation de polyisocyanates (semi)crystallins et amorphes à haute réactivité
EP4077441B1 (fr) Polyuréthane thermoplastique ayant une contrainte à la flexion élevée
DE19633218A1 (de) OH-terminierte, uretdiongruppenhaltige Polyisocyanate, ein Verfahren zu ihrer Herstellung sowie deren Verwendung
EP0727452A1 (fr) Polyisocyanates contenant des groupes uretdione
DE10250512A1 (de) Verfahren zur Herstellung von Urethan(meth)acrylaten
EP0730614A1 (fr) Procede de production de polyurethanes thermoplastiques par traitement thermoplastique commun d'un polyurethane d'hydroxyle et d'un polyurethane d'isocyanate
EP3838952A1 (fr) Polyuréthane thermoplastique à teneur en segment dur élevée
EP0798322A1 (fr) Diisolcyanates (cyclo)aliphatiques bloqués contenant des groupes de carbodiimide, un procédé pour leur préparation ainsi que leur utilisation

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: 20070315

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EVONIK DEGUSSA GMBH

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20080423

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: EVONIK DEGUSSA GMBH

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20080822