EP0980421A1 - Reinigungsmittel für nachvernetzende polyurethan-hotmelts - Google Patents
Reinigungsmittel für nachvernetzende polyurethan-hotmeltsInfo
- Publication number
- EP0980421A1 EP0980421A1 EP98922746A EP98922746A EP0980421A1 EP 0980421 A1 EP0980421 A1 EP 0980421A1 EP 98922746 A EP98922746 A EP 98922746A EP 98922746 A EP98922746 A EP 98922746A EP 0980421 A1 EP0980421 A1 EP 0980421A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning
- compounds
- cleaning agent
- reactive
- volatile
- 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.)
- Granted
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 23
- 239000004814 polyurethane Substances 0.000 title claims abstract description 23
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 16
- 239000012943 hotmelt Substances 0.000 title claims description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims description 16
- -1 benzyl alcohol, alkylbenzyl alcohols Chemical class 0.000 claims description 5
- 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
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 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
- 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
- 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
- 238000007127 saponification reaction Methods 0.000 claims description 2
- 150000003512 tertiary amines Chemical class 0.000 claims description 2
- 150000003606 tin compounds Chemical class 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000001340 alkali metals Chemical class 0.000 claims 1
- 239000004831 Hot glue Substances 0.000 abstract description 16
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 20
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 8
- 238000004132 cross linking Methods 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
- 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
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002144 chemical decomposition reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 229920000728 polyester 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
- 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
- 239000004721 Polyphenylene oxide 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
- 229920000570 polyether Polymers 0.000 description 2
- 229920000582 polyisocyanurate Polymers 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
- 239000004823 Reactive adhesive Substances 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
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000007942 carboxylates 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
- 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
- 238000004090 dissolution Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 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
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting 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
- 238000011417 postcuring Methods 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
- 150000003384 small molecules Chemical class 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
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 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 become very widespread, particularly in industrial applications, since they combine the advantages of the rapid setting of conventional non-post-crosslinking hotmelt adhesives with the better thermal resistance of reactive adhesives.
- These reactive polyurethane hotmelts contain reactive groups that can react further with the moisture from the surrounding air or the substrates to be connected with crosslinking.
- These moisture-reactive functional groups are generally isocyanate groups, but they can also be alkoxysilane groups.
- the manufacturing and processing devices are encapsulated to prevent the ingress of moisture; additionally or alternatively, they are coated with dried inert gases to prevent the ingress of moisture.
- moisture diffuses into the production and processing systems over time, so that the reaction of the reactive hot-melt adhesives with this moisture causes crosslinking, non-meltable masses.
- at Longer dwell times of the hotmelts in the processing plant result in cracking, which often not only leads to a reduction in molecular weight but also (for example due to the trimerization of isocyanate groups). a molecular weight build-up, ie lead to the formation of non-meltable products.
- the system can "overgrow”.
- the supply lines and application nozzles with a small cross-section are particularly affected. Since the flow rates change, readjustment of the application parameters is necessary.
- solvents are used for this, e.g. Xylene or solvent with a terminator, i.e. monofunctional solvents that react with the reactive end groups, including alcohol-containing solvents.
- solvents can only be used in explosion-protected systems in production areas that have so-called explosion protection.
- cleaning with solvents is incomplete and complex, since the hardened or cracked products are largely insoluble and only swell and therefore have to be removed mechanically in part.
- cleaning compounds are chemically non-reactive masses with the hot melt adhesive, which mix in the apparatus to be cleaned with the adhesive residues to be removed, only dilute and displace them.
- cleaning compounds can e.g. non-reactive hot melt adhesives, for example based on mixtures of an EVA polymer and a resin component.
- EVA polymers are not readily miscible with conventional polyurethane hot melt adhesives.
- the hotmelt adhesive can react further to form crosslinked products which are very difficult to remove, since they are infusible and essentially insoluble in the cleaning compound and can therefore be found in inaccessible places in the production or Can store processing equipment.
- EP-A-55058 also proposes cleaning compounds for removing reactive polyurethane hotmelt adhesives from manufacturing and processing equipment, machines and machines. systems which contain at least one reactive monofunctional hydroxy compound which can be reacted with the isocyanates of the hot-melt adhesive and, if appropriate, additional components such as resins, waxes, plasticizers and the like, thereby ensuring that the remaining isocyanate groups of the polyurethane hot melt are saturated during cleaning and no undesired further crosslinking can occur.
- the object was therefore to provide a cleaning agent for reactive polyurethane hotmelt adhesives which not only removes residues of the reactive uncrosslinked hotmelt, but also buildup of the already reacted, crosslinked or cracked, infusible hotmelt.
- this object has been achieved by cleaning agents which contain non-volatile monohydroxy compounds and depolymerization catalysts.
- the monohydroxy compound prevents crosslinking of the reactive 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 even in systems that do not have explosion protection.
- Depolymerization catalyst causes chemical degradation of the already reacted, crosslinked or cracked, infusible components of the hot melt, so that even such buildup in the plants can be removed easily and quickly.
- the cleaning agent according to the invention carries out the chemical degradation by re-urethanization in the case of polyether urethanes and polyisocyanurates.
- the polyester is also transesterified. Due to the large number of ester bonds in the molecule, chemical degradation to very low molecular weight compounds and thus low-viscosity compounds is 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 low-volatile are 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.
- monohydroxy compounds are C 6 -C 24 monoalcohols, as are commercially available, for example, from Henkel under the trade name “Lorol”.
- 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 It is also possible to use secondary monoamines, if appropriate in combination with the aforementioned hydroxy compounds.
- all those catalysts which are known from polyurethane chemistry as catalysts for the construction of the polymers and the esterification catalysts which are known in principle can be used as depolymerization catalysts in the sense of this invention.
- examples of such catalysts are alcoholates, in particular alkali alcoholates such as sodium methylate, sodium ethylate, sodium isopropylate and their alcoholic solutions.
- depolymerization catalysts which can be used are the organotin compounds known per se of di- and / or tetravalent tin, such as, for example, tin (I ⁇ ) carboxylates or dialkyl-tin (IV) dicarboxylates, such as, for example, tin (II) octoate or dibutyltin diacetate, dibutyltin dilaurate (DBTL) or dibutyltin maleate can be used.
- organotin compounds known per se of di- and / or tetravalent tin such as, for example, tin (I ⁇ ) carboxylates or dialkyl-tin (IV) dicarboxylates, such as, for example, tin (II) octoate or dibutyltin diacetate, dibutyltin dilaurate (DBTL) or dibutyltin maleate
- organometallic compounds such as, for example, 1,3-dicarbonyl compounds of iron, such as, for example, iron (III) acetylacetonate, and in particular organometallic compounds of titanium, such as titanium tetraalkylates, in particular the easily accessible titanium tetraisopropylate, can be used.
- organometallic compounds of titanium such as titanium tetraalkylates, in particular the easily accessible titanium tetraisopropylate
- the tertiary amines known as polyurethane catalysts can be used for depolymerization.
- DBTL dibutyltin dilaurate
- the cleaning agents according to the invention can furthermore contain non-reactive components such as, for example, non-reactive hot melt adhesive components such as thermoplastics, resins, waxes and in particular plasticizers.
- non-reactive hot melt adhesive components such as thermoplastics, resins, waxes and in particular plasticizers.
- plasticizers particularly volatile, saponification-resistant plasticizers such as, for example, Mesamoll (trade name from Bayer) or Lipinol T (trade name from Hüls) can be added.
- Mesamoll trade name from Bayer
- Lipinol T trade name from Hüls
- cured polyurethane hot-melt strips were produced, in which the 3 mm thick layer applied by Henkel under the name Macroplast QR 2530-21 (polyester-urethane) or Macroplast QR 6265-21 (polyether-urethane) and 4 Weeks in air. These cured polyurethane hot-melt layers were then cut into strips.
- the saturated fatty alcohol mixture Lorol C12 / C14 from Henkel was placed in an Erlenmeyer flask with a magnetic stirrer. Then 1% by weight, based on the alcohol mixture, of dibutyltin dilaurate was added and the mixture was heated to 120.degree. Strips of cured polyurethane hotmelt adhesive (10% by weight, based on the detergent mixture) were then added to the mixture.
- Remains of spent ⁇ 4 hours color brown t ⁇ 4 hours hardened material in the piston.
- the cured residues of polyester and polyether urethanes can be completely dissolved by the cleaning mixture at low temperatures (120 to 140 ° C.).
- the cross-linked polyurethanes are partially dissolved by the liquid components.
- the temperatures used correspond to the usual application temperatures of reactive hotmelt adhesives, so that these are readily available even in application or processing plants.
- sodium methylate is very effective at a higher temperature, but tin compounds (DBTL) and titanium tetraisopropylate, which show a very high dissolution rate even at a low temperature (120 ° C.), are particularly effective.
- the processing or Flush manufacturing plants with a non-reactive compound After using the cleaning agent described, the processing or Flush manufacturing plants with a non-reactive compound to completely remove residues of the mono alcohol and the catalyst.
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)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19718065A DE19718065A1 (de) | 1997-04-29 | 1997-04-29 | Reinigungsmittel für nachvernetzende Polyurethan-Hotmelts |
DE19718065 | 1997-04-29 | ||
PCT/EP1998/002323 WO1998049262A1 (de) | 1997-04-29 | 1998-04-20 | Reinigungsmittel für nachvernetzende polyurethan-hotmelts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0980421A1 true EP0980421A1 (de) | 2000-02-23 |
EP0980421B1 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, 73441 Bopfingen | 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 |
CA2724849C (en) * | 2008-05-23 | 2017-01-24 | Lubrizol Advanced Materials, Inc. | Fiber reinforced tpu composites |
KR20130139317A (ko) * | 2010-12-02 | 2013-12-20 | 바스프 에스이 | 금속 표면으로부터 폴리우레탄을 제거하기 위한 혼합물의 용도 |
EP2460860A1 (de) * | 2010-12-02 | 2012-06-06 | Basf Se | Verwendung von Mischungen zur Entfernung von Polyurethanen von Metalloberflächen |
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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DE154446C (de) | ||||
DD72964A (de) * | ||||
DE72964C (de) | G. RUDOLPH in Bölingen i. S | Vorrichtung zum Küpenfärben und Vergruuen des Garnes | ||
DE132675C (de) | ||||
DE59670C (de) | 1891-05-06 | Dr. A. Ritter JURNITSCHEK VON WEHRSTEDT in Wien I, Graben 29 | An Handfeuerwaffen zu befestigender Putzstock | |
US3647531A (en) * | 1967-04-11 | 1972-03-07 | Tokyo Shibaura Electric Co | Method of applying coating of metal oxides upon substrates |
DD132675A1 (de) * | 1975-09-18 | 1978-10-18 | Ernst Bullack | Verfahren und vorrichtung zur demontagefreien schonenden reinigung von polyurethan-rohstoff-und-verarbeitungsanlagen |
US4056403A (en) | 1976-05-27 | 1977-11-01 | Olin Corporation | Solvent composition used to clean polyurethane foam generating equipment |
DE2721186C2 (de) * | 1977-05-11 | 1986-04-24 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung eines Gemisches von niedermolekularen Polyhydroxylverbindungen |
GB1575653A (en) * | 1977-06-01 | 1980-09-24 | Ciba Geigy Ag | Reinforced composites |
DE2734574A1 (de) * | 1977-07-30 | 1979-02-08 | Bayer Ag | Thiogruppenhaltige polyurethankunststoffe |
JPS55130998A (en) * | 1979-04-02 | 1980-10-11 | Takeda Chem Ind Ltd | N2-substituted 2,6-diaminonebularin |
DE2940765A1 (de) * | 1979-10-08 | 1981-04-23 | Basf Ag, 6700 Ludwigshafen | Substituierte alkylammoniumsalze, ihre herstellung, ihre verwendung zur regulierung des pflanzenwachstums und mittel dafuer |
JPS59538B2 (ja) * | 1980-04-30 | 1984-01-07 | 豊田合成株式会社 | 合成樹脂製モ−ル用接着剤 |
US4374250A (en) * | 1980-06-23 | 1983-02-15 | Osaka Municipal Government | Method of producing benzimidazolone |
JPS5940390B2 (ja) * | 1980-12-30 | 1984-09-29 | 大阪市 | アミノベンツイミダゾロン類の製造方法 |
NO156828C (no) * | 1980-11-10 | 1987-12-02 | Otsuka Pharma Co Ltd | Analogifremgangsm te for fremstilling av antibakterielt virksomme benzoheterocykliske forbindelser. |
DE3106491C2 (de) * | 1981-02-21 | 1982-12-09 | Chemische Werke Hüls AG, 4370 Marl | Verwendung von N-oxalkylierten Derivaten des Anilins als polymerlösende Komponente in Fußbodenreinigungsmitteln |
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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 WO PCT/EP1998/002323 patent/WO1998049262A1/de active IP Right Grant
- 1998-04-20 AU AU75275/98A patent/AU7527598A/en not_active Abandoned
- 1998-04-20 EP EP98922746A patent/EP0980421B1/de not_active Expired - Lifetime
- 1998-04-20 US US09/403,996 patent/US6610153B1/en not_active Expired - Fee Related
- 1998-04-20 DE DE59806121T patent/DE59806121D1/de not_active Expired - Fee Related
-
2003
- 2003-06-03 US US10/453,212 patent/US20030211957A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
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See references of WO9849262A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20030211957A1 (en) | 2003-11-13 |
DE19718065A1 (de) | 1998-11-05 |
US6610153B1 (en) | 2003-08-26 |
DE59806121D1 (de) | 2002-12-05 |
WO1998049262A1 (de) | 1998-11-05 |
AU7527598A (en) | 1998-11-24 |
EP0980421B1 (de) | 2002-10-30 |
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