EP0980421B1 - Reinigungsmittel für nachvernetzende polyurethan-hotmelts - Google Patents
Reinigungsmittel für nachvernetzende polyurethan-hotmelts Download PDFInfo
- Publication number
- EP0980421B1 EP0980421B1 EP98922746A EP98922746A EP0980421B1 EP 0980421 B1 EP0980421 B1 EP 0980421B1 EP 98922746 A EP98922746 A EP 98922746A EP 98922746 A EP98922746 A EP 98922746A EP 0980421 B1 EP0980421 B1 EP 0980421B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning compositions
- compounds
- cleaning
- reactive
- catalysts
- 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.)
- Expired - Lifetime
Links
- 229920002635 polyurethane Polymers 0.000 title claims description 23
- 239000004814 polyurethane Substances 0.000 title claims description 23
- 239000012943 hotmelt Substances 0.000 title claims description 22
- 239000012459 cleaning agent Substances 0.000 title description 9
- 238000004140 cleaning Methods 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 22
- 239000003054 catalyst Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 12
- 150000001346 alkyl aryl ethers Chemical class 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- 150000003512 tertiary amines Chemical class 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 3
- JTAXUBKTCAOMTN-UHFFFAOYSA-N Abietinol Natural products CC(C)C1=CC2C=CC3C(C)(CO)CCCC3(C)C2CC1 JTAXUBKTCAOMTN-UHFFFAOYSA-N 0.000 claims description 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- GQRUHVMVWNKUFW-LWYYNNOASA-N abieta-7,13-dien-18-ol Chemical compound OC[C@]1(C)CCC[C@]2(C)[C@@H](CCC(C(C)C)=C3)C3=CC[C@H]21 GQRUHVMVWNKUFW-LWYYNNOASA-N 0.000 claims description 2
- 229930001565 abietol Natural products 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 229920001451 polypropylene glycol Polymers 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 2
- 150000001340 alkali metals Chemical class 0.000 claims 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims 1
- 150000001342 alkaline earth metals Chemical class 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- 235000019445 benzyl alcohol Nutrition 0.000 claims 1
- 239000004831 Hot glue Substances 0.000 description 15
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 8
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 7
- 239000012975 dibutyltin dilaurate Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002144 chemical decomposition reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- -1 benzyl alcohol, alkylbenzyl alcohols Chemical class 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229920000570 polyether Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 150000003673 urethanes Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 150000002440 hydroxy compounds Chemical class 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 229920000582 polyisocyanurate Polymers 0.000 description 2
- 238000011417 postcuring Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000005829 trimerization reaction Methods 0.000 description 2
- ZBBLRPRYYSJUCZ-GRHBHMESSA-L (z)-but-2-enedioate;dibutyltin(2+) Chemical compound [O-]C(=O)\C=C/C([O-])=O.CCCC[Sn+2]CCCC ZBBLRPRYYSJUCZ-GRHBHMESSA-L 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- JQZRVMZHTADUSY-UHFFFAOYSA-L di(octanoyloxy)tin Chemical compound [Sn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O JQZRVMZHTADUSY-UHFFFAOYSA-L 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- AQBLLJNPHDIAPN-LNTINUHCSA-K iron(3+);(z)-4-oxopent-2-en-2-olate Chemical compound [Fe+3].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O AQBLLJNPHDIAPN-LNTINUHCSA-K 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- UDKSLGIUCGAZTK-UHFFFAOYSA-N phenyl pentadecane-1-sulfonate Chemical compound CCCCCCCCCCCCCCCS(=O)(=O)OC1=CC=CC=C1 UDKSLGIUCGAZTK-UHFFFAOYSA-N 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- LMHHRCOWPQNFTF-UHFFFAOYSA-N s-propan-2-yl azepane-1-carbothioate Chemical compound CC(C)SC(=O)N1CCCCCC1 LMHHRCOWPQNFTF-UHFFFAOYSA-N 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- SYRHIZPPCHMRIT-UHFFFAOYSA-N tin(4+) Chemical compound [Sn+4] SYRHIZPPCHMRIT-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
- C11D7/5004—Organic solvents
- C11D7/5022—Organic solvents containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Definitions
- the present invention relates to a cleaning agent for removing reactive Polyurethane hotmelts and their reaction products from manufacturing and Processing equipment.
- Post-crosslinking polyurethane hotmelts have recently found particularly widespread in industrial application because they take advantage of the rapid setting of conventional non-post-curing Hot melt adhesives with the better thermal resistance of reactive Combine adhesives.
- This moisture-reactive functional groups are usually isocyanate groups, it can, however, also be alkoxysilane groups.
- the manufacturing and Encapsulated processing devices against the ingress of moisture additionally or alternatively this is covered with dried inert gases to prevent access of moisture.
- moisture has diffused into the manufacturing and processing systems, so that by the reaction of the reactive hot melt adhesives with this moisture crosslinking, no longer meltable masses arise.
- at the hotmelt stays in the processing plant for a longer time which often not only lead to a reduction in molecular weight, but (e.g. through the Trimerization of isocyanate groups) also to build up molecular weight, i.e. lead to the formation of non-meltable products.
- Known cleaning compounds are with the Hot melt adhesive chemically non-reacting masses in the to be cleaned Mix the equipment with the adhesive residue to be removed, only dilute it and displace.
- cleaning compounds can e.g. non-reactive hot melt adhesives for example based on mixtures of an EVA polymer and one Resin component.
- EVA polymers are made with common polyurethane hot melt adhesives not miscible.
- the hot melt adhesive can result to further crosslink its still reactive isocyanate functionality in the mixture React products that are very difficult to remove because they are infusible and are essentially insoluble in the cleaning compound and therefore adhere inaccessible places in the manufacturing or processing equipment.
- cleaning compounds are based on non-reactive Hotmelts with the addition of monofunctional chain terminators such as alcohols used.
- cleaning hotmelts are e.g. under the label "Cleaning hotmelt Q 1950" from Henkel has been on the market for a long time.
- EP-A-0 544 058 proposes cleaning compounds for the removal of reactive polyurethane hot melt adhesives from manufacturing and processing equipment, machines and Plants that are at least one reactive with the isocyanates of the hot melt adhesive convertible monofunctional hydroxy compounds and, if necessary, additional components such as Contains resins, waxes, plasticizers and the like.
- this object has been achieved by cleaning agents which are non-volatile or non-volatile monohydroxy with a boiling point at normal pressure above 140 ° C and / or secondary Monoamines and depolymerization catalysts selected from the group alkali, alkaline earth or aluminum alcoholates, tertiary Contain amines and catalysts for the construction of polyurethanes.
- the monohydroxy compound prevents crosslinking of the reactive ones Isocyanate groups and thus the formation of an infusible reaction product.
- the use of non-volatile monohydroxy compounds allows the use of these Cleaning compounds also in systems that have no explosion protection.
- the contained in the cleaning compound according to the invention Depolymerization catalyst causes chemical degradation of the already reacted cross-linked or cracked, infusible components of the hot melt, so that also such buildup can be easily and quickly removed from the system.
- the Cleaning agents according to the invention carry out the chemical degradation by re-urethanization in the case of polyether urethanes and polyisocyanurates.
- polyether urethanes and polyisocyanurates In the case of hot melt adhesives based on polyester urethanes, there is also an additional one Transesterification of the polyester instead. Due to the large number of ester bonds in the molecule here the chemical degradation is too low molecular compounds and thus low viscous compounds particularly advantageous.
- the cleaning agent according to the invention contains two essential components, namely a non-volatile or non-volatile monohydroxy compound.
- non-volatile or non-volatile is understood to mean those monohydroxy compounds which have a boiling point at normal pressure of above 140 ° C., preferably above 160 ° C. and particularly preferably above 200 ° C. As a rule, these monohydroxy compounds continue to have a flash point above 100 ° C. Examples of such monohydroxy compounds are C 6 -C 24 monoalcohols, as are commercially available, for example, under the trade name "Lorol" from Henkel.
- the saturated fatty alcohol mixture Lorol C12 / C14 is very particularly preferred here.
- monohydroxy compounds to be used according to the invention are benzyl alcohol, alkylbenzyl alcohols, abietyl alcohol, nonylphenol, polyethylene glycol monoalkyl ether, polypropylene glycol monoalkyl ether and mixtures thereof.
- Secondary monoamines, optionally in combination with the aforementioned hydroxy compounds, can also be used.
- all can be used as depolymerization catalysts in the sense of this invention those catalysts that build up from polyurethane chemistry as catalysts the known polymers are used, as well as those known in principle Esterification.
- catalysts are alcoholates. especially alkali alcoholates such as e.g. Sodium methylate, sodium ethylate. Sodium isopropylate and their alcoholic solutions. In place of sodium alcoholates can of course also the corresponding potassium compounds or alkaline earth or aluminum compounds.
- the organotin compounds known per se divalent and / or tetravalent tin e.g.
- Tin (II) carboxylates or dialkyl tin (IV) dicarboxylates such as e.g. Tin (II) octoate or dibutyltin diacetate.
- Dibutyltin dilaurate (DBTL) or dibutyltin maleate can be used.
- Farther other organometallic compounds such as e.g. 1,3-dicarbonyl compounds of Iron such as Iron (III) acetylacetonate and especially organometallic Compounds of titanium such as titanium tetraalkylates, especially the easily accessible Titanium tetraisopropylate can be used.
- they can be used as polyurethane catalysts known tertiary amines can be used for depolymerization.
- DBTL Dibutyltin dilaurate
- the detergents according to the invention can also be non-reactive components such as. non-reactive hot melt adhesive components such as thermoplastics, resins, waxes and in particular contain plasticizers.
- non-reactive hot melt adhesive components such as thermoplastics, resins, waxes and in particular contain plasticizers.
- plasticizers such as, for example, Mesamoll (trade name of Bayer) or Lipinol T (trade name of Hüls) can be added.
- cured polyurethane hot-melt strips were produced, in which the in Trade under the name Macroplast QR 2530-21 (polyester urethane) or Macroplast QR 6265-21 (polyether urethane) from Henkel applied in a 3 mm thick layer and air-cured for 4 weeks. Then they became cured polyurethane hot melt layers cut into strips.
- the saturated fatty alcohol mixture was placed in an Erlenmeyer flask with a magnetic stirrer Lorol C12 / C14 from Henkel. Then 1 wt .-% based on the Alcohol mixture, dibutyltin dilaurate added and the mixture heated to 120 ° C. Thereafter, strips of cured polyurethane hot melt adhesive (10% by weight based on the detergent mixture) entered in the mixture.
- Example 2 The procedure was as in Example 1, but was used as a depolymerization catalyst Titanium tetraisopropylate used.
- the cleaning mixtures react according to the prior art, which do not contain a depolymerization catalyst considerably slower. It is particularly disadvantageous that the chemical degradation is not complete takes place and that residues of hardened material remain in the mixture.
- the depolymerization catalyst contain, the cured residues of polyester and polyether urethanes low temperatures (120 to 140 ° C) through the cleaning mixture completely be resolved.
- the cross-linked polyurethanes are made up of the liquid components partially dissolved. The result is a mixture with porridge-like, well pumpable and pumpable Consistency.
- the temperatures used correspond to the usual application temperatures reactive hot melt adhesives so that they can also be Processing plants are readily available.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
- Die Anlage kann "zuwachsen". Betroffen sind besonders die Zuleitungen und Auftragsdüsen mit kleinem Querschnitt. Da sich die Durchflußmengen ändern, ist eine Nachjustierung der Auftragsparameter erforderlich.
- Durch die Hautbildung ist der Wärmeübergang beispielsweise bei Schmelzbeckengeräten oder bei einem Produktionsreaktor erschwert. Dies bedeutet: längere Aufheizzeiten, Energieverlust und zusätzliche thermische Belastung der Schmelze durch längere Verweilzeiten.
Versuche 1 bis 3 und Vergleich 1 | ||||
Temperatur: 120 °C | ||||
Vergleich 1 | 1 | 2 | 3 | |
nach 4 Stunden nur zum Teil breiartig gelöst Reste von ausgehärtetem Material im Kolben | vollständig breiartig gelöst nach t<4 Std. | geringe Reste von ausgehärtetem Material nach 4 Std | vollständig breiartig gelöst nach 4-6 Std. | |
Beurteilung | - | + | o | + |
Versuche 4 bis 6 und Vergleich 2 | ||||
Temperatur: 140 °C | ||||
Vergleich 2 | 4 | 5 | 6 | |
nach 4 Stunden nur zum Teil breiartig gelöst Reste von ausgehärtetem Material im Kolben. | vollständig breiartig gelöst t<4 Std | vollständig breiartig gelöst Farbe braun | vollständig breiartig gelöst t<4 Std | |
Beurteilung | - | + | + | + |
Claims (5)
- Reinigungsmittel zur Entfernung von reaktiven Polyurethan-Hotmelts und deren Reaktionsprodukten dadurch gekennzeichnet, daß diese nichtflüchtige oder schwerflüchtige Monohydroxyverbindungen mit einem Siedepunkt bei Normaldruck oberhalb von 140°C und/oder sekundäre Monoamine und Depolymerisationskatalysatoren ausgewählt aus der Gruppe Alkali-, Erdalkalioder Aluminiumalkoholate, tertiäre Amine sowie Katalysatoren zum Aufbau von Polyurethanen enthalten.
- Reinigungsmittel gemäß Anspruch 1 dadurch gekennzeichnet, daß die nichtflüchtigen Monohydroxyverbindungen ausgewählt werden aus der Gruppe der C6 bis C24-Monoalkohole, Benzylalkohol, Alkylbenzylalkohole, Abietylalkohol, Nonylphenol, Polyethylenglycolmonoalkylether, Polypropylenglycol-monoalkylether sowie Mischungen derselben.
- Reinigungsmittel gemäß einem der vorhergehenden Ansprüche dadurch gekennzeichnet, daß der Depolymerisationskatalysator ausgewählt wird aus zinnorganischen Verbindungen des zwei- und/oder vierwertigen Zinns, Alkalialkoholaten, Titantetraalkylaten und tertiären Aminen oder deren Mischungen.
- Reinigungsmittel gemäß einem der vorhergehenden Ansprüche gekennzeichnet durch einen zusätzlichen Gehalt an schwerflüchtigen verseifungsbeständigen Weichmacher(n), Harzen und/oder Wachsen.
- Verwendung von Reinigungsmitteln gemäß mindestens einem der vorhergehenden Ansprüche zum Entfernen von reaktiven Polyurethan-Hotmelts und/oder deren ausgehärteten Reaktionsprodukte aus Herstellungs- und/oder Verarbeitungsgeräten und -anlagen.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19718065 | 1997-04-29 | ||
DE19718065A DE19718065A1 (de) | 1997-04-29 | 1997-04-29 | Reinigungsmittel für nachvernetzende Polyurethan-Hotmelts |
PCT/EP1998/002323 WO1998049262A1 (de) | 1997-04-29 | 1998-04-20 | Reinigungsmittel für nachvernetzende polyurethan-hotmelts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0980421A1 EP0980421A1 (de) | 2000-02-23 |
EP0980421B1 true EP0980421B1 (de) | 2002-10-30 |
Family
ID=7828096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98922746A Expired - Lifetime EP0980421B1 (de) | 1997-04-29 | 1998-04-20 | Reinigungsmittel für nachvernetzende polyurethan-hotmelts |
Country Status (5)
Country | Link |
---|---|
US (2) | US6610153B1 (de) |
EP (1) | EP0980421B1 (de) |
AU (1) | AU7527598A (de) |
DE (2) | DE19718065A1 (de) |
WO (1) | WO1998049262A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19718065A1 (de) * | 1997-04-29 | 1998-11-05 | Henkel Kgaa | Reinigungsmittel für nachvernetzende Polyurethan-Hotmelts |
DE20020588U1 (de) * | 2000-11-08 | 2001-05-03 | Henkel Dorus Gmbh & Co Kg | Reinigungsmittel zur Reinigung von Verarbeitungsaggregaten für reaktive Verbindungen |
FR2865211A1 (fr) * | 2004-01-21 | 2005-07-22 | Joint Francais | Procede de decomposition d'un polymere comportant des groupes urethanne et/ou uree, et solution de depolymerisation pour la mise en oeuvre de ce procede |
WO2009143198A2 (en) * | 2008-05-23 | 2009-11-26 | Lubrizol Advanced Materials, Inc. | Fiber reinforced tpu composites |
EP2460860A1 (de) * | 2010-12-02 | 2012-06-06 | Basf Se | Verwendung von Mischungen zur Entfernung von Polyurethanen von Metalloberflächen |
KR20130139317A (ko) * | 2010-12-02 | 2013-12-20 | 바스프 에스이 | 금속 표면으로부터 폴리우레탄을 제거하기 위한 혼합물의 용도 |
JP2015000911A (ja) * | 2013-06-14 | 2015-01-05 | Dic株式会社 | 反応性ホットメルト樹脂用剥離剤、剥離方法及び基材 |
CN114164063B (zh) * | 2021-12-16 | 2023-08-11 | 万华化学集团股份有限公司 | 异氰酸酯换热器结垢物的化学清洗剂及制备方法和应用 |
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DE9114780U1 (de) | 1991-11-27 | 1992-02-13 | H.B. Fuller Licensing & Financing, Inc., Wilmington, Del. | Reinigungscompound |
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DE19718065A1 (de) * | 1997-04-29 | 1998-11-05 | Henkel Kgaa | Reinigungsmittel für nachvernetzende Polyurethan-Hotmelts |
-
1997
- 1997-04-29 DE DE19718065A patent/DE19718065A1/de not_active Ceased
-
1998
- 1998-04-20 DE DE59806121T patent/DE59806121D1/de not_active Expired - Fee Related
- 1998-04-20 AU AU75275/98A patent/AU7527598A/en not_active Abandoned
- 1998-04-20 US US09/403,996 patent/US6610153B1/en not_active Expired - Fee Related
- 1998-04-20 WO PCT/EP1998/002323 patent/WO1998049262A1/de active IP Right Grant
- 1998-04-20 EP EP98922746A patent/EP0980421B1/de not_active Expired - Lifetime
-
2003
- 2003-06-03 US US10/453,212 patent/US20030211957A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE19718065A1 (de) | 1998-11-05 |
EP0980421A1 (de) | 2000-02-23 |
WO1998049262A1 (de) | 1998-11-05 |
US20030211957A1 (en) | 2003-11-13 |
US6610153B1 (en) | 2003-08-26 |
AU7527598A (en) | 1998-11-24 |
DE59806121D1 (de) | 2002-12-05 |
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