WO2011072903A1 - Zusammensetzungen aus (cyclo)aliphatischen diisocyanaten und aromatischen säurehalogeniden - Google Patents
Zusammensetzungen aus (cyclo)aliphatischen diisocyanaten und aromatischen säurehalogeniden Download PDFInfo
- Publication number
- WO2011072903A1 WO2011072903A1 PCT/EP2010/065237 EP2010065237W WO2011072903A1 WO 2011072903 A1 WO2011072903 A1 WO 2011072903A1 EP 2010065237 W EP2010065237 W EP 2010065237W WO 2011072903 A1 WO2011072903 A1 WO 2011072903A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cyclo
- aliphatic
- diisocyanate
- urea
- mdi
- Prior art date
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- -1 aromatic acid halides Chemical class 0.000 title claims abstract description 54
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- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 8
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- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 claims description 3
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- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical class OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003330 sebacic acids Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- LXEJRKJRKIFVNY-UHFFFAOYSA-N terephthaloyl chloride Chemical compound ClC(=O)C1=CC=C(C(Cl)=O)C=C1 LXEJRKJRKIFVNY-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
-
- 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
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- 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
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- 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
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
Definitions
- the invention relates to compositions of (cyclo) aliphatic diisocyanates, prepared by a multi-stage process (phosgene-free preparation), the conversion of (cyclo) aliphatic diamines in the corresponding
- (Cyclo) alkylene diisocyanates and alcohol include - urea route - and aromatic acid chlorides (halides) and their use.
- Diisocyanates are valuable chemical compounds that allow on the principle of the diisocyanate polyaddition process the targeted construction of polymers which are used as polycarbamates or polyureas in foams, elastomers, thermoplastics, fibers, light-resistant polycarbamate coatings or
- Synthetic access to isocyanates can be via a number of different routes. Oldest and still prevalent variant of the
- Isocyanates using alternative carbonylating agents e.g. As urea or dialkyl carbonate, used (EP 18 586, EP 355 443, US 4,268,683, EP 990 644).
- urea route is the urea-mediated transfer of diamines to diisocyanates via a two-stage process.
- a diamine is reacted with alcohol in the presence of urea or urea equivalents (for example alkyl carbonates, alkyl carbamates) to give a biscarbamate, which usually passes through an intermediate purification stage and is then thermally cleaved into diisocyanate and alcohol in the second process step (EP 126 299) , EP 26 300, EP 355 443, US 4,713,476, US 5,386,053).
- urea or urea equivalents for example alkyl carbonates, alkyl carbamates
- thermal cleavage of (cyclo) aliphatic biscarbamates can be carried out in the gas or in the liquid phase, with or without solvent and with or without catalysts.
- EP 18 568 The preparation of (cyclo) aliphatic biscarbamates in a one-pot reaction of diamine, urea and alcohol with simultaneous removal of ammonia is known from EP 18 568.
- the teaching of EP 18 568 has been further developed and is in
- reaction via the urea route leads to the production of (cyclo) aliphatic biscarbamates in both single-stage, two-stage and alternatively multi-stage processes as well as in the subsequent thermal cleavage of the
- the invention has for its object to provide novel compositions which avoid the disadvantages mentioned above.
- the invention relates to a composition substantially containing
- At least one (cyclo) aliphatic diisocyanate prepared by reacting at least one (cyclo) aliphatic diamine with urea and / or
- Urea route produced (cyclo) aliphatic diisocyanate such as methylenedicyclohexyl diisocyanate (H 12 MDI), isophorone diisocyanate (IPDI), 2,2,4- and 2,4,4-trimethylhexamethylene diisocyanate (TMDI) and hexamethylene diisocyanate (HDI), in particular methylenedicyclohexyl diisocyanate ( Hi 2 MDI), by adding an appropriate amount of an aromatic acid halide to the level of
- H 12 MDI methylenedicyclohexyl diisocyanate
- IPDI isophorone diisocyanate
- TMDI 2,2,4- and 2,4,4-trimethylhexamethylene diisocyanate
- HDI hexamethylene diisocyanate
- Hi 2 MDI methylenedicyclohexyl diisocyanate
- Acid halides in particular benzyl chloride, the reactivity is reduced by about 50% and is in the same experiment mentioned above (implementation of an urea route produced H 12 MDI with n-octanol at 80 ° C) after 5 hours 38%.
- component B) is an aromatic acid halide
- Suitable are chlorides, fluorides, bromides and iodides. Preference is given to acid chlorides. Suitable compounds are benzoyl chloride, phthaloyl chloride, isophthalic acid dichloride, terephthalic acid dichloride, o-toluic acid dichloride,
- the amount of component B) in the composition of the invention varies from 0.0001 to 1, 0 wt .-% based on the (cyclo) aliphatic, prepared by the urea process diisocyanate A). Preference is given to using 0.001-0.9% by weight and more preferably 0.002-0.5% by weight.
- a process for the continuous preparation of (cyclo) aliphatic diisocyanates by reacting at least one (cyclo) aliphatic diamine with urea and / or urea equivalents and at least one alcohol to give (cyclo) aliphatic
- the diisocyanates are more preferably prepared by the following method according to the urea route:
- R is a straight-chain or branched aliphatic hydrocarbon radical having a total of 6 to 12 carbon atoms or an optionally substituted cycloaliphatic hydrocarbon radical having a total of 4 to 18, preferably 5 to 15 carbon atoms, by reacting (cyclo) aliphatic diamines with
- Hydrocarbon radical having a total of 6 to 12 carbon atoms or an optionally substituted cycloaliphatic hydrocarbon radical having a total of 4 to 18, preferably 5 to 15 carbon atoms, with unconditioned urea and / or unconditioned urea
- R 1 -OH wherein R 1 is a radical such as that after removal of the hydroxyl group from a primary or secondary (cyclo) aliphatic alcohol having 3 to 8
- Hydrocarbon radical having a total of 6 to 12 carbon atoms or an optionally substituted cycloaliphatic hydrocarbon radical having a total of 4 to 18, preferably 5 to 15 carbon atoms, in a distillation reactor, with simultaneous removal of the resulting
- Ammonia wherein the starting materials are continuously applied to the top soil and the ammonia formed is driven off by distillation with alcohol vapors introduced in the bottom; b) in the second stage, the reaction of the obtained from the first stage a) (cyclo) alkylenebisarnstoffs with the alcohol used in a) as a solvent in a pressure distillation reactor, with simultaneous removal of the resulting ammonia, to the (cyclo) alkylenbiscarbamat the formula (V )
- R 1 O-OC-HN-R-NH-CO-OR 1 is carried out; c) or optionally the reaction of (cyclo) aliphatic diamines of the formula (II) with unconditioned urea and / or unconditioned urea prepared urea equivalents in the presence of alcohol of the formula (III) R 1 -OH in a pressure distillation reactor in one stage, with simultaneous removal of the resulting ammonia, to the (cyclo) alkylenebiscarbamate of the formula (V)
- R 1 0 -OC-HN-R-NH-CO-OR 1 is carried out without the steps a) and b) (R and R 1 corresponds to the above definition); d) from the resulting reaction mixture from b) or optionally c) the alcohol, the dialkyl carbonates and / or Carbamidklarealkylester and the alcohol and optionally, also the dialkyl carbonates and / or
- reaction mixture of j) is added directly to the
- Starting compounds for the process are diamines of the abovementioned formula (II), alcohols of the abovementioned formula (III) and also urea and / or urea equivalents prepared from urea.
- Suitable diamines of the formula (II) are aliphatic diamines, for example hexamethylenediamine, 2-methylpentamethylenediamine, octamethylenediamine, 2,2,4- and 2,4,4-trimethylhexamethylenediamine or mixtures thereof, decamethylenediamine, 2-methylnonamethylenediamine, dodecamethylenediamine and cycloaliphatic diamines. such as B.
- Perhydrogenated methylenediphenyldiamine is obtained by complete hydrogenation of MDA and is therefore a mixture of isomers
- Methylenedicyclohexyldiaminen H 12 MDA
- Preferred diamines of the formula (II) are 5-amino-1,3,3-trimethylcyclohexane methanamine (isophoronediamine), 2,2,4- and 2,4,4-trimethylhexamethylenediamine or mixtures thereof, 4,4'-methylenedicyclohexyldiamine , 2,4-Methylendicyclohexyldiamin and 2,2'-Methylendicyclohexyldiamin and also any mixtures at least two of these isomers and hexamethylenediamine and 2-methylpentamethylenediamine used.
- Suitable alcohols of the formula (III) are any aliphatic or cycloaliphatic alcohols which have a boiling point below 90 ° C. under atmospheric pressure. Exemplarily called its C1 -C6 alkanols such. As methanol, ethanol, 1 - propanol, 1-butanol, 2-butanol, 1 -hexanol or cyclohexanol. Preferably, 1-butanol is used as the alcohol.
- aliphatic diisocyanates having a straight-chain or branched aliphatic hydrocarbon radical having a total of 6 to 12
- Carbon atoms such as hexamethylene diisocyanate (HDI), 2-methylpentane diisocyanate, 2,2,4- and 2,4,4-trimethylhexamethylene diisocyanate, or mixtures thereof,
- Octamethylene diisocyanate, decamethylene diisocyanate, 2-methylnonamethylene diisocyanate or dodecamethylene diisocyanate are particularly suitable.
- cycloaliphatic diisocyanates with an optionally substituted cycloaliphatic are particularly suitable.
- Hydrocarbon radical with a total of 4 to 18, preferably 5 to 15
- H 12 MDI Methylenedicyclohexyl diisocyanate
- the component A) according to the invention can also be chain-extended.
- Component A) may also contain additional di- and polyisocyanates.
- the di- and polyisocyanates used can be selected from any aromatic,
- compositions of the invention may be solid, viscous, liquid and also in powder form.
- compositions may also contain adjuvants and additives selected from inhibitors, organic solvents, optionally unsaturated
- Containing grouping agents Containing grouping agents, surfactants, oxygen and / or radical scavengers, catalysts, sunscreens, color brighteners, photoinitiators, photosensitizers, thixotropic agents, skin preventatives, defoamers, dyes, pigments, fillers and matting agents.
- the amount varies greatly from the field of application and type of auxiliary and additive.
- Suitable organic solvents are all liquid substances which do not react with other ingredients, eg. Acetone, ethyl acetate, butyl acetate, xylene, Solvesso 100, Solvesso 150, methoxypropyl acetate and dibasic ester.
- additives such as leveling agents, for. B. polysilicone or
- composition according to the invention is preferably carried out by mixing the components A) and B).
- Components such as e.g. Auxiliaries etc, can be carried out in suitable aggregates, stirred tanks, static mixers, tubular reactors, kneaders, extruders or other reaction spaces with or without mixing function.
- the reaction is carried out at temperatures between room temperature and 220 ° C, preferably between room temperature and 120 ° C and takes depending on the temperature and reaction components A) and B) between a few seconds and several hours.
- the invention also provides the use of the invention
- At least one (cyclo) aliphatic diisocyanate prepared by reacting at least one (cyclo) aliphatic diamine with urea and / or
- Coating materials eg textile, paper and leather coating
- adhesives eg textile, paper and leather coating
- lacquers lacquers
- paints powder coatings
- printing inks and inks polishes, glazes
- Pigment pastes and masterbatches fillers, sealants and insulating materials, thermoplastic elastomers, in particular thermoplastic polyurethanes, thermosetting elastomers, foams (for example block foams,
- Molded foams moldings
- semi-rigid foams eg foil-backed foams, energy absorbent foams, fiber-reinforced foams
- integral foams eg soft integral and hard integral foams
- thermal insulation materials eg., RIM materials, materials for medical and hygienic applications (eg.
- thermoplastic polyurethanes TPU
- hoses and, powder z. B. for the production of molded skins according to the "powder-slush" method
- NCO-containing prepolymers for moisture-curing coatings and adhesives.
- compositions of the invention in coating compositions, in particular as a primer, interlayer, topcoat, clearcoat, adhesive or sealing material and the coating agent itself, particularly preferably with compounds of component C), as described in more detail below.
- the invention also provides the use of the invention
- the invention also provides the use of the invention
- MDF Medium Density Fiber Boards
- the invention also relates to metal coating compositions, in particular for automobile bodies, motorcycles and bicycles, building parts and
- the coating can either be used alone or be a layer of a multi-layer construction. It can be applied, for example, as a primer, as an intermediate layer or as a topcoat or clearcoat.
- the layers above or below the coating can either be thermally cured conventionally or else by radiation.
- the invention relates to polyurethane compositions essentially containing a composition of
- At least one (cyclo) aliphatic diisocyanate prepared by reacting at least one (cyclo) aliphatic diamine with urea and / or
- the components A) and C) are used in a mass ratio, so that the OH: NCO ratio between 2.0: 1, 0 and 1, 0: 2.0, preferably between 1, 8: 1, 0 and 1, 0 : 1, 8 and more preferably between 1, 6: 1, 0 and 1, 0: 1, 6.
- polymers and prepolymers are obtained, preferably with an NCO number of 0-30% by weight and an OH number of 500-0 mg KOH / g and an acid number of 0-50 mg KOH / g) as well as thermosetting or thermoplastic elastomers.
- all compounds which have at least one, preferably at least two, functional groups which are reactive toward NCO groups are suitable as compounds C).
- Suitable as functional groups z For example, OH, NH 2 , NH, SH, CH-acidic groups.
- the compounds C) preferably contain 2 to 4 functional groups.
- diamines and polyamines are in principle suitable: 1, 2-ethylenediamine,
- amino alcohols are monoethanolamine, 3-amino-1-propanol,
- Isopropanolamine aminoethoxyethanol, N- (2-aminoethyl) ethanolamine, N-ethylethanolamine, N-butylethanolamine, diethanolamine, 3- (hydroxyethylamino) -1-propanol and diisopropanolamine also referred to as mixtures.
- Suitable compounds C) with SH groups are, for example, trimethylolpropane tri-3-mercaptopropionate, pentaerythritol tetra-3-mercaptopropionate, trimethylolpropane trimercaptoacetate and pentaerythritol tetramercaptoacetate.
- CH-acidic compounds for example, derivatives of malonic acid esters, acetylacetone and / or acetoacetic ester are suitable.
- Particularly suitable compounds C) are all diols and polyols conventionally used in PU chemistry with at least two OH groups.
- diols and polyols z As diols and polyols z.
- ethylene glycol 1, 2, 1, 3-propanediol, diethylene, dipropylene, triethylene, tetraethylene glycol, 1, 2, 1, 4-butanediol,
- Neopentyl glycol trimethylolethane, trimethylolpropane, pentaerythritol, bisphenol A, B, C, F, norbornylene glycol, 1,4-benzyldimethanol, ethanol, 2,4-dimethyl-2-ethylhexane-1,3-diol, 1,4 and 2 , 3-Butylene glycol, di-.beta.-hydroxyethylbutanediol, 1, 5-pentanediol,
- Polypropylene glycols polybutylene glycols, xylylene glycol or
- Hydroxypivalate They are used alone or in mixtures. 1, 4-butanediol is used only in mixtures.
- Suitable compounds C) are also diols and polyols which contain further functional groups. These are the linear or slightly branched hydroxyl-containing polyesters, polycarbonates, known per se.
- Polycaprolactones polyethers, polythioethers, polyesteramides, polyacrylates,
- Polyvinyl alcohols, polyurethanes or polyacetals They preferably have a number average molecular weight of 134 to 20,000 g / mol, more preferably 134-4000 g / mol. In the hydroxyl-containing polymers are preferred
- Polycarbonates having an OH number of 5 - used 500 in mg KOH / gram).
- Suitable diols and polyols for the preparation of the preferred polyester polyols are, in addition to the abovementioned diols and polyols, 2-methylpropanediol, 2,2-dimethylpropanediol, diethylene glycol, dodecanediol-1, 12, 1, 4-cyclohexanedimethanol and 1, 2 and 1, 4 -Cyclohexandiol.
- Triethylene glycol pentanediol-1, 5, hexanediol-1, 6, 3-methylpentanediol-1, 5,
- Suitable dicarboxylic acids or derivatives for the preparation of the polyester polyols may be aliphatic, cycloaliphatic, aromatic and / or heteroaromatic nature and optionally, for. B. by halogen atoms, substituted and / or unsaturated.
- Preferred dicarboxylic acids or derivatives include succinic, adipic, corkic, azelaic and sebacic acids, 2,2,4 (2,4,4) -trimethyladipic acid, phthalic acid,
- Phthalic anhydride isophthalic acid, terephthalic acid, terephthalic acid dimethyl ester, tetrahydrophthalic acid, maleic acid, maleic anhydride and dimer fatty acids.
- Suitable polyester polyols are also those which can be prepared in a known manner by ring opening from lactones, such as caprolactone, and simple diols as starter molecules. Also mono- and polyesters from lactones, eg. B. ⁇ -caprolactone or hydroxycarboxylic acids, eg. B. hydroxypivalic acid, ⁇ -hydroxydecanoic acid,
- ⁇ -hydroxycaproic acid, thioglycolic acid can be used as starting materials for the preparation of the polymers G).
- Bisphenol A 4,4'-dihydroxybiphenyl or bis (4-hydroxyphenyl) sulfone
- Polyester of carbonic acid which consists of hydroquinone, diphenylolpropane, p-xylylene glycol, ethylene glycol, butanediol or hexanediol-1, 6 and other polyols by conventional
- Condensation reactions eg. B. with phosgene or diethyl or diphenyl carbonate, or from cyclic carbonates, such as glycol carbonate or vinylidene carbonate, by
- Polyester of silicic acid polyester of phosphoric acid, e.g. B. from methane, ethane, ß-chloroethane, benzene or
- Styrene-phosphoric acid or its derivatives such as, for example, phosphoric acid chlorides or phosphoric acid esters and polyhydric alcohols or polyphenols of the abovementioned type; Polyester of boric acid; Polysiloxanes, such as. B. by hydrolysis of
- Acrylic acid available products, are suitable as starting materials for the preparation of the compounds C).
- the polyesters can be prepared in a conventional manner by condensation in one
- Method of organic chemistry Houben-Weyl; Vol. 14/2, pages 1 to 5, 21 to 23, 40 to 44, Georg Thieme Verlag, Stuttgart, 963, or C.R. Martens, Alkyd Resins, pages 51 to 59, Reinhold Plastics Appl. Series, Reinhold Publishing Comp., New York, 1961.
- OH-containing (meth) acrylates are also preferably used.
- the diols and dicarboxylic acids or derivatives thereof used for the preparation of the polyesterpolyols can be used in any desired mixtures.
- Suitable compounds C) are also the reaction products of polycarboxylic acids and glycidic compounds, as z. B. in DE-OS 24 10 513 are described.
- glycidyl compounds which can be used are esters of 2,3-epoxy-1-propanol with monobasic acids having 4 to 18 carbon atoms, such as glycidyl palmitate, glycidyl laurate and glycidyl stearate, alkylene oxides of 4 to 18 carbon atoms, such as butylene oxide, and Glycidyl ethers, such as octyl glycidyl ether.
- Compounds C) are also those which carry at least one further functional group in addition to an epoxide group, such.
- Particularly preferred are 2,3-epoxy-1-propanol and epoxidized soybean oil.
- the invention also provides a process for the preparation of
- At least one (cyclo) aliphatic diisocyanate prepared by reacting at least one (cyclo) aliphatic diamine with urea and / or
- the mean residence time in the distillation reactor was 7 h. In the swamp of the under
- Residence time in the pressure distillation reactor was 10.5 h. By heating the following temperature profile was set: sump 229 ° C and head 200 ° C. In the swamp of the
- Heat transfer oil quantity to the reboiler adjusted so that the amount of butanol withdrawn at the top together with the ammonia formed corresponded to that supplied in the sump.
- Catalyst soln The energy required for the cleavage and rectification was transferred with heat transfer oil in the falling film evaporator.
- the carbamate cleavage reaction was carried out at a bottom pressure of 27 mbar and a bottom temperature of 230 ° C.
- the formed during the cleavage incurred by rectification at the top butanol of 40.0 kg / h was withdrawn and fed with the bottoms discharge of hourly 21.7 kg from the combined cleavage and rectification of the Recarbamatmaschineseck.
- the crude diisocyanate of 55.4 kg / h withdrawn from the combined cleavage and rectification column in the side stream was fed to a further purifying distillation, thus obtaining 52.0 kg / h of purified diisocyanate.
- the purity of the diisocyanate obtained was determined by gas chromatography to be> 99.5% by weight.
- the average residence time in the pressure distillation reactor was 10.5 h.
- the temperature profile was set: sump 230 ° C and head 200 ° C.
- the heat transfer oil quantity to the reboiler was adjusted so that the amount of butanol withdrawn at the top together with the ammonia formed corresponded to that supplied in the bottom.
- the resulting butanol / ammonia mixture was then moved into the ammonia-butanol separation column.
- the head temperature was 87 ° C.
- Catalyst soln The energy required for the cleavage and rectification was transferred with heat transfer oil in the falling film evaporator.
- the carbamate cleavage reaction was carried out at a bottom pressure of 27 mbar and a bottom temperature of 230 ° C.
- the mean residence time in the pressure distillation reactor was 0.5 h.
- sump 228 ° C and head 200 ° C. 94.3 kg / h of butanol were introduced into the bottom of the pressure distillation reactor and the heat transfer oil quantity to the reboiler was adjusted so that the amount of butanol withdrawn at the top together with the ammonia formed corresponded to that supplied in the bottom.
- the resulting butanol / ammonia mixture was then moved into the ammonia-butanol separation column.
- the head temperature was 86 ° C.
- Losses (low-boiling components and incineration of added residues) were replaced by the addition of 4.5 kg / h of fresh butanol in the bottom of the ammonia-butanol separation column.
- Catalyst soln The energy required for the cleavage and rectification was transferred with heat transfer oil in the falling film evaporator.
- the carbamate cleavage reaction was carried out at a bottom pressure of 27 mbar and a bottom temperature of 228 ° C.
- the butanol of 38.1 kg / h formed during the cleavage by rectification at the top was drawn off and fed to the bottoms discharge of 25.7 kg / h from the combined cleavage and rectification column of the recarbamation stage.
- Butanol / ammonia mixture was then moved into the ammonia-butanol separation column.
- the head temperature was 86 ° C. Butanol losses due to ammonia release and other losses
- the recovered crude H12MDI was subjected to pure distillation to give 37.3 kg / h of pure H 2 MDI. 26.3 kg / h crude butanol fell as the top product of the cleavage and rectification. To maintain the mass constancy within the gap and
- Slitting apparatus was continuously discharged from the Wälzniklauf a partial flow and combined with 2,2 kg / h bottom sludge from the H ⁇ MDI purifying distillation and the top product from the cleavage and rectification and reurethanized.
- the Reurethanisatstrom was freed from excess butanol and separated by distillation into a high boiler rich waste stream and a stream of recyclable material.
- the 28.8 kg / h of material flow were together with the reactor discharge of
- Diisocyanate was determined by gas chromatography with> 99.5 wt .-%.
- IPD 5-amino-1,3,3-trimethylcyclohexanemethanamine
- TMD (2,2,4-) 2,4,4-trimethylhexamethylenediamine
- H12MDA Mixture of isomeric methylenedicyclohexyldiamine The diisocyanate purities were determined by gas chromatography:
- the process yield is calculated from the diisocyanate produced based on the diamine used.
- a mixture of 52.52 g of prepared by the phosgene H 12 MDI and 83.38 g of 2-methoxypropyl acetate is placed in a three-necked flask under nitrogen and heated to 80 ° C with stirring. At this temperature are added via a dropping funnel 51, 10 g of n-octanol, which were previously also heated to 80 ° C, within 10 seconds. The reaction mixture is subsequently kept at a temperature of 80 ° C. with stirring. The percentage of sales of
- Urethane reaction is determined by the NCO number. In this case, the conversion was 30% after 3 hours and 43% after 7 hours.
- a mixture of 52.52 g of a prepared according to urea route H12MDI (VESTANAT H12MDI) and 83.38 g of 2-methoxypropyl acetate is placed in a three-necked flask under nitrogen and heated to 80 ° C with stirring. At this temperature are added via a dropping funnel 51, 10 g of n-octanol, which were previously also heated to 80 ° C, within 10 seconds. The reaction mixture is subsequently kept at a temperature of 80 ° C. with stirring.
- the percentage conversion of the urethane reaction is determined by the NCO number. In this case, the conversion was 51% after 3 hours and 78% after 7 hours.
- Inventive Example I A mixture of 52.52 g of an prepared by urea route H 12 MDI, 83.38 g of 2-methoxypropyl acetate and 0.0188 g of benzoyl chloride is placed in a three-necked flask under nitrogen and heated to 80 ° C with stirring. At this temperature are added via a dropping funnel 51, 0 g of n-octanol, which were previously also heated to 80 ° C, within 10 seconds. The reaction mixture is subsequently kept at a temperature of 80 ° C. with stirring. The percentage conversion of the urethane reaction is determined by the NCO number. In this case, the conversion was 29% after 3 hours and 46% after 7 hours. Thus, the reactivity of the H 12 MDI prepared after the urea route after addition of benzoyl chloride corresponds to that of the Hi 2 MDI prepared by the phosgene method (comparative example A).
- Phosgene produced Hi 2 MDI are in one with KPG stirrer,
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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)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
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DE112010004845T DE112010004845A5 (de) | 2009-12-16 | 2010-10-12 | Zusammensetzungen aus (cyclo)aliphatischen diisocyanaten und aromatischen säurehalogeniden |
US13/516,457 US20120313031A1 (en) | 2009-12-16 | 2010-10-12 | Compounds made of (cyclo)aliphatic diisocyanates and aromatic acid halides |
CN2010800578115A CN102918024A (zh) | 2009-12-16 | 2010-10-12 | 由脂(环)族二异氰酸酯和芳族酰卤组成的组合物 |
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DE102009054749A DE102009054749A1 (de) | 2009-12-16 | 2009-12-16 | Zusammensetzung aus (cyclo)aliphatischen Diisocyanaten und aromatischen Säurehalogeniden |
DE102009054749.5 | 2009-12-16 |
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CN (1) | CN102918024A (de) |
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Cited By (1)
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US8968895B2 (en) | 2010-07-23 | 2015-03-03 | Evonik Degussa Gmbh | Lithium cells and batteries with improved stability and safety, method for the production thereof, and application in mobile and stationary electrical energy accumulators |
Families Citing this family (5)
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DE102004048775A1 (de) * | 2004-10-07 | 2006-04-13 | Degussa Ag | Hoch reaktive uretdiongruppenhaltige Polyurethanzusammensetzungen |
DE102004058173A1 (de) * | 2004-12-02 | 2006-06-08 | Degussa Ag | Lagerstabile aliphatische, cycloaliphatische oder (cyclo)aliphatische Diisocyanate |
DE102010029235A1 (de) | 2010-05-21 | 2011-11-24 | Evonik Degussa Gmbh | Hydrophile Polyisocyanate |
EP3401344B1 (de) | 2017-05-09 | 2020-04-08 | Evonik Operations GmbH | Verfahren zur herstellung von trimeren und/oder oligomeren von diisocyanaten |
CN114249671B (zh) * | 2021-11-19 | 2023-03-10 | 美瑞新材料股份有限公司 | 一种以脂肪族二胺混合物为原料制备脂肪族二异氰酸酯的方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8968895B2 (en) | 2010-07-23 | 2015-03-03 | Evonik Degussa Gmbh | Lithium cells and batteries with improved stability and safety, method for the production thereof, and application in mobile and stationary electrical energy accumulators |
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US20120313031A1 (en) | 2012-12-13 |
CN102918024A (zh) | 2013-02-06 |
DE102009054749A1 (de) | 2011-06-22 |
DE112010004845A5 (de) | 2012-12-06 |
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