DE1568011A1 - Verfahren zur Herstellung eines lagerungsbestaendigen fluessigen Polyisocyanats - Google Patents
Verfahren zur Herstellung eines lagerungsbestaendigen fluessigen PolyisocyanatsInfo
- Publication number
- DE1568011A1 DE1568011A1 DE19661568011 DE1568011A DE1568011A1 DE 1568011 A1 DE1568011 A1 DE 1568011A1 DE 19661568011 DE19661568011 DE 19661568011 DE 1568011 A DE1568011 A DE 1568011A DE 1568011 A1 DE1568011 A1 DE 1568011A1
- Authority
- DE
- Germany
- Prior art keywords
- toluene
- column
- phosgenation
- mixture
- residue
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 30
- 229920001228 polyisocyanate Polymers 0.000 title claims description 25
- 239000005056 polyisocyanate Substances 0.000 title claims description 25
- 230000008569 process Effects 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 title claims description 14
- 238000002360 preparation method Methods 0.000 title description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 67
- 239000000203 mixture Substances 0.000 claims description 54
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 claims description 30
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 28
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000004821 distillation Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 12
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 claims description 10
- RLYCRLGLCUXUPO-UHFFFAOYSA-N 2,6-diaminotoluene Chemical compound CC1=C(N)C=CC=C1N RLYCRLGLCUXUPO-UHFFFAOYSA-N 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- 150000004998 toluenediamines Chemical class 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 150000004985 diamines Chemical class 0.000 claims description 6
- 239000003701 inert diluent Substances 0.000 claims description 5
- 239000012442 inert solvent Substances 0.000 claims description 5
- PZKPUGIOJKNRQZ-UHFFFAOYSA-N 1-methylcyclohexa-3,5-diene-1,3-diamine Chemical class CC1(N)CC(N)=CC=C1 PZKPUGIOJKNRQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 4
- 239000011496 polyurethane foam Substances 0.000 claims description 4
- 238000002329 infrared spectrum Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 238000005292 vacuum distillation Methods 0.000 claims description 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 239000000344 soap Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 20
- ZMBQZWCDYKGVLW-UHFFFAOYSA-N 1-methylcyclohexa-3,5-diene-1,2-diamine Chemical class CC1(N)C=CC=CC1N ZMBQZWCDYKGVLW-UHFFFAOYSA-N 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- -1 2,5-tolylene Chemical group 0.000 description 9
- 239000006260 foam Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 6
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 238000005194 fractionation Methods 0.000 description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 239000011541 reaction mixture Substances 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920005862 polyol Polymers 0.000 description 4
- 150000003077 polyols Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000003380 propellant Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- OBCSAIDCZQSFQH-UHFFFAOYSA-N 2-methyl-1,4-phenylenediamine Chemical compound CC1=CC(N)=CC=C1N OBCSAIDCZQSFQH-UHFFFAOYSA-N 0.000 description 2
- DGRGLKZMKWPMOH-UHFFFAOYSA-N 4-methylbenzene-1,2-diamine Chemical class CC1=CC=C(N)C(N)=C1 DGRGLKZMKWPMOH-UHFFFAOYSA-N 0.000 description 2
- OZCJSIBGTRKJGX-UHFFFAOYSA-N 4-methylcyclohexa-1,5-diene-1,4-diamine Chemical compound CC1(N)CC=C(N)C=C1 OZCJSIBGTRKJGX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 241001233037 catfish Species 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 150000002500 ions Chemical group 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical class CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 2
- 125000005628 tolylene group Chemical group 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- CIZCKPNGZPENDV-RUCZCKOISA-N (E)-2-benzylidenesuccinyl-CoA Chemical compound O=C([C@H](O)C(C)(COP(O)(=O)OP(O)(=O)OC[C@@H]1[C@H]([C@@H](O)[C@@H](O1)N1C2=NC=NC(N)=C2N=C1)OP(O)(O)=O)C)NCCC(=O)NCCSC(=O)C(\CC(O)=O)=C\C1=CC=CC=C1 CIZCKPNGZPENDV-RUCZCKOISA-N 0.000 description 1
- ITWBWJFEJCHKSN-UHFFFAOYSA-N 1,4,7-triazonane Chemical compound C1CNCCNCCN1 ITWBWJFEJCHKSN-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- AFYPFACVUDMOHA-UHFFFAOYSA-N chlorotrifluoromethane Chemical compound FC(F)(F)Cl AFYPFACVUDMOHA-UHFFFAOYSA-N 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000006103 coloring component Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- RJGHQTVXGKYATR-UHFFFAOYSA-L dibutyl(dichloro)stannane Chemical compound CCCC[Sn](Cl)(Cl)CCCC RJGHQTVXGKYATR-UHFFFAOYSA-L 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 210000005053 lamin Anatomy 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- LMEWRZSPCQHBOB-UHFFFAOYSA-M silver;2-hydroxypropanoate Chemical compound [Ag+].CC(O)C([O-])=O LMEWRZSPCQHBOB-UHFFFAOYSA-M 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- ZBOGUDPFEVIZIQ-UHFFFAOYSA-N toluene;dihydrochloride Chemical compound Cl.Cl.CC1=CC=CC=C1 ZBOGUDPFEVIZIQ-UHFFFAOYSA-N 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N trans-stilbene Chemical group C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- JZBMWXZOUSTRDA-UHFFFAOYSA-J tri(hexanoyloxy)stannyl hexanoate Chemical compound [Sn+4].CCCCCC([O-])=O.CCCCCC([O-])=O.CCCCCC([O-])=O.CCCCCC([O-])=O JZBMWXZOUSTRDA-UHFFFAOYSA-J 0.000 description 1
- PWBHRVGYSMBMIO-UHFFFAOYSA-M tributylstannanylium;acetate Chemical compound CCCC[Sn](CCCC)(CCCC)OC(C)=O PWBHRVGYSMBMIO-UHFFFAOYSA-M 0.000 description 1
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
- C07C209/84—Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
-
- 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
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- 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
- C08G18/727—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80 comprising distillation residues or non-distilled raw phosgenation products
-
- 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
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0025—Foam properties rigid
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/005—< 50kg/m3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyurethanes Or Polyureas (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US45621565A | 1965-05-17 | 1965-05-17 | |
| US46336065A | 1965-06-11 | 1965-06-11 | |
| US81377169A | 1969-04-04 | 1969-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1568011A1 true DE1568011A1 (de) | 1970-04-30 |
Family
ID=27412660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661568011 Pending DE1568011A1 (de) | 1965-05-17 | 1966-05-16 | Verfahren zur Herstellung eines lagerungsbestaendigen fluessigen Polyisocyanats |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US3420752A (US06650917-20031118-M00005.png) |
| BE (2) | BE681132A (US06650917-20031118-M00005.png) |
| DE (1) | DE1568011A1 (US06650917-20031118-M00005.png) |
| GB (1) | GB1133668A (US06650917-20031118-M00005.png) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3637514A (en) * | 1969-06-20 | 1972-01-25 | Allied Chem | Vicinal toluenediamine mixtures |
| BE792000A (fr) * | 1971-11-29 | 1973-03-16 | Du Pont | Compositions de polyisocyanates utilisables pour la fabricationde matieres polymeres |
| JPS504719B2 (US06650917-20031118-M00005.png) * | 1972-03-18 | 1975-02-22 | ||
| US3887502A (en) * | 1972-05-12 | 1975-06-03 | Olin Corp | Preparation of rigid polyurethane foam having improved aging properties |
| JPS5029464B2 (US06650917-20031118-M00005.png) * | 1972-11-15 | 1975-09-23 | Sumitomo Chemical Co | |
| US3978128A (en) * | 1975-01-13 | 1976-08-31 | General Motors Corporation | Method of recovering amines by the hydrolytic decomposition of polyurethanes |
| DE3607665A1 (de) * | 1986-03-08 | 1987-09-10 | Bayer Ag | Verfahren zur aufarbeitung waessriger aminloesungen |
| FR2777560B1 (fr) | 1998-04-17 | 2000-06-09 | Rhodia Chimie Sa | Procede de purification de polyamines aromatiques |
| DE102005032430A1 (de) * | 2005-07-12 | 2007-01-25 | Bayer Materialscience Ag | Verfahren zur Herstellung von Toluylendiamin |
| RU2008115525A (ru) * | 2005-09-22 | 2009-10-27 | Хантсмэн Интернэшнл Ллс (Us) | Способ получения полиизоцианатов |
| KR101531731B1 (ko) * | 2007-11-27 | 2015-06-25 | 미쓰이 가가쿠 가부시키가이샤 | 톨릴렌다이아민의 탈수 방법 및 탈수 장치 |
| CN105503620A (zh) * | 2015-12-28 | 2016-04-20 | 甘肃银光聚银化工有限公司 | 一种提高邻位tda纯度的方法 |
| EP3736263A1 (de) * | 2019-05-07 | 2020-11-11 | Covestro Deutschland AG | Verfahren zur reinigung von isocyanaten |
| CN113735718A (zh) * | 2021-09-27 | 2021-12-03 | 江苏科富恺机械设备有限公司 | 一种连续提纯间苯二胺的方法及系统 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1918997A (en) * | 1930-12-01 | 1933-07-18 | Du Pont | Purification of arylamines |
| US3128310A (en) * | 1955-09-09 | 1964-04-07 | Bayer Ag | Recovery of amines |
| GB966812A (en) * | 1962-07-02 | 1964-08-19 | Ici Ltd | Purification of aromatic amines |
| US3215652A (en) * | 1962-09-24 | 1965-11-02 | Allied Chem | Process for producing a rigid polyether-polyurethane foam |
-
0
- BE BE631132D patent/BE631132A/xx unknown
-
1965
- 1965-05-17 US US456215A patent/US3420752A/en not_active Expired - Lifetime
-
1966
- 1966-05-16 GB GB21689/66A patent/GB1133668A/en not_active Expired
- 1966-05-16 DE DE19661568011 patent/DE1568011A1/de active Pending
- 1966-05-16 BE BE681132D patent/BE681132A/xx unknown
-
1969
- 1969-04-04 US US813771A patent/US3522285A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3420752A (en) | 1969-01-07 |
| BE681132A (US06650917-20031118-M00005.png) | 1966-10-31 |
| BE631132A (US06650917-20031118-M00005.png) | |
| GB1133668A (en) | 1968-11-13 |
| US3522285A (en) | 1970-07-28 |
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