KR100746846B1 - 방향족 우레탄의 연속 합성법 - Google Patents
방향족 우레탄의 연속 합성법 Download PDFInfo
- Publication number
- KR100746846B1 KR100746846B1 KR1020027012269A KR20027012269A KR100746846B1 KR 100746846 B1 KR100746846 B1 KR 100746846B1 KR 1020027012269 A KR1020027012269 A KR 1020027012269A KR 20027012269 A KR20027012269 A KR 20027012269A KR 100746846 B1 KR100746846 B1 KR 100746846B1
- Authority
- KR
- South Korea
- Prior art keywords
- reaction
- carried out
- reactor
- aromatic amine
- amine
- Prior art date
Links
- -1 aromatic urethanes Chemical class 0.000 title claims description 11
- 230000015572 biosynthetic process Effects 0.000 title description 16
- 238000003786 synthesis reaction Methods 0.000 title description 9
- 238000010924 continuous production Methods 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 150000004982 aromatic amines Chemical class 0.000 claims abstract description 18
- 150000001412 amines Chemical class 0.000 claims abstract description 12
- 150000005677 organic carbonates Chemical class 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YZYKBQUWMPUVEN-UHFFFAOYSA-N zafuleptine Chemical compound OC(=O)CCCCCC(C(C)C)NCC1=CC=C(F)C=C1 YZYKBQUWMPUVEN-UHFFFAOYSA-N 0.000 claims description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- VOZKAJLKRJDJLL-UHFFFAOYSA-N 2,4-diaminotoluene Chemical compound CC1=CC=C(N)C=C1N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002841 Lewis acid Substances 0.000 claims description 3
- 150000005840 aryl radicals Chemical group 0.000 claims description 3
- 150000007517 lewis acids Chemical class 0.000 claims description 3
- 150000003254 radicals Chemical class 0.000 claims description 3
- RLYCRLGLCUXUPO-UHFFFAOYSA-N 2,6-diaminotoluene Chemical compound CC1=C(N)C=CC=C1N RLYCRLGLCUXUPO-UHFFFAOYSA-N 0.000 claims description 2
- OHKOAJUTRVTYSW-UHFFFAOYSA-N 2-[(2-aminophenyl)methyl]aniline Chemical compound NC1=CC=CC=C1CC1=CC=CC=C1N OHKOAJUTRVTYSW-UHFFFAOYSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 239000004305 biphenyl Substances 0.000 claims description 2
- 125000006267 biphenyl group Chemical group 0.000 claims description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 150000004992 toluidines Chemical class 0.000 claims description 2
- LVNDUJYMLJDECN-UHFFFAOYSA-N 5-methylbenzene-1,3-diamine Chemical compound CC1=CC(N)=CC(N)=C1 LVNDUJYMLJDECN-UHFFFAOYSA-N 0.000 claims 1
- 229940057499 anhydrous zinc acetate Drugs 0.000 claims 1
- DJWUNCQRNNEAKC-UHFFFAOYSA-L zinc acetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O DJWUNCQRNNEAKC-UHFFFAOYSA-L 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract description 8
- 125000003118 aryl group Chemical group 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 239000000047 product Substances 0.000 description 18
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 12
- 125000003277 amino group Chemical group 0.000 description 12
- 239000004202 carbamide Substances 0.000 description 12
- 150000001875 compounds Chemical class 0.000 description 12
- 239000011541 reaction mixture Substances 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 6
- 238000004128 high performance liquid chromatography Methods 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000012071 phase Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- GERBEFIWMALHEL-UHFFFAOYSA-N ethyl carbamate;toluene Chemical compound CCOC(N)=O.CC1=CC=CC=C1 GERBEFIWMALHEL-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- 238000010626 work up procedure Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010959 steel Substances 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
- 150000003673 urethanes Chemical class 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- BEAZKUGSCHFXIQ-UHFFFAOYSA-L zinc;diacetate;dihydrate Chemical compound O.O.[Zn+2].CC([O-])=O.CC([O-])=O BEAZKUGSCHFXIQ-UHFFFAOYSA-L 0.000 description 2
- POILWHVDKZOXJZ-ARJAWSKDSA-M (z)-4-oxopent-2-en-2-olate Chemical compound C\C([O-])=C\C(C)=O POILWHVDKZOXJZ-ARJAWSKDSA-M 0.000 description 1
- JIABEENURMZTTI-UHFFFAOYSA-N 1-isocyanato-2-[(2-isocyanatophenyl)methyl]benzene Chemical class O=C=NC1=CC=CC=C1CC1=CC=CC=C1N=C=O JIABEENURMZTTI-UHFFFAOYSA-N 0.000 description 1
- UTNMPUFESIRPQP-UHFFFAOYSA-N 2-[(4-aminophenyl)methyl]aniline Chemical compound C1=CC(N)=CC=C1CC1=CC=CC=C1N UTNMPUFESIRPQP-UHFFFAOYSA-N 0.000 description 1
- UQRLKWGPEVNVHT-UHFFFAOYSA-N 3,5-dichloroaniline Chemical compound NC1=CC(Cl)=CC(Cl)=C1 UQRLKWGPEVNVHT-UHFFFAOYSA-N 0.000 description 1
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical class [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical class [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical class [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005910 alkyl carbonate group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Chemical class 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 238000007069 methylation reaction Methods 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000006833 reintegration Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 229910052725 zinc Chemical class 0.000 description 1
- 239000011701 zinc Chemical class 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C269/04—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims (10)
- 유기 카보네이트와 방향족 아민을 연속식으로 작동하는 반응기에서 반응시키는 단계 및 전체 혼합물 중량에 대한 방향족 아민의 전체량이 4 내지 30%의 범위가 되도록 공급하는 단계로 이루어지는, 방향족 우레탄의 제조방법.
- 제1항에 있어서, 유기 카보네이트와 방향족 아민간의 반응이 연속식 반응기에서 수행되며, 방향족 아민의 농도가 전체 혼합물에 대해 0.1 내지 5중량%로 유지되는 방법.
- 제2항에 있어서, 방향족 아민의 농도가 전체 혼합물에 대해 0.1 내지 2.5%로 유지되는 방법.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이 CSTR 또는 반응성 칼럼 형태의 반응기로부터 선택된 반응기에서 수행됨을 특징으로 하는 방법.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이, pKa 값이 2.8% 이상인 루이스 산으로부터 선택되는 촉매의 존재하에 수행됨을 특징으로 하는 방법.
- 제5항에 있어서, 유기 카보네이트와 방향족 아민의 반응이 무수 아연 아세테이트 또는 아연 아세테이트 이수화물의 존재하에 수행됨을 특징으로 하는 방법.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이 용매로서 작용하는 유기 카보네이트 단독의 존재하에 수행됨을 특징으로 하는 방법.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이 형성되는 알코올의 제거를 수반하는 방법.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이 하기 화학식 I의 아민으로부터 개시되어 수행됨을 특징으로 하는 방법.화학식 IR-(NH2)n위의 화학식 I에서,n은 1 내지 2이고,R은 벤젠, 톨루엔, 나프탈렌, 디페닐 및 메틸렌-디페닐의 1가 및 2가 라디칼로부터 선택되는 아릴 라디칼이다.
- 제1항 내지 제3항 중의 어느 한 항에 있어서, 반응이 2,4-디아미노톨루엔, 2,6-디아미노톨루엔 또는 이들의 혼합물, 아닐린, 톨루이딘, 3,5-디아미노톨루엔, 4,4'-메틸렌디아닐린, 2,4-메틸렌디아닐린, 2,2-메틸렌디아닐린 및 이들 이성체들의 혼합물로 이루어진 그룹으로부터 선택되는 아민으로부터 개시되어 수행됨을 특징으로 하는 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000547A IT1318395B1 (it) | 2000-03-17 | 2000-03-17 | Processo in continuo per la sintesi di uretani aromatici. |
ITMI2000A000547 | 2000-03-17 | ||
PCT/EP2001/002829 WO2001068590A1 (en) | 2000-03-17 | 2001-03-13 | Continuous process for the synthesis of aromatic urethanes |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030029042A KR20030029042A (ko) | 2003-04-11 |
KR100746846B1 true KR100746846B1 (ko) | 2007-08-09 |
Family
ID=11444488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020027012269A KR100746846B1 (ko) | 2000-03-17 | 2001-03-13 | 방향족 우레탄의 연속 합성법 |
Country Status (13)
Country | Link |
---|---|
US (1) | US20030171526A1 (ko) |
EP (1) | EP1268409B1 (ko) |
JP (1) | JP4988118B2 (ko) |
KR (1) | KR100746846B1 (ko) |
CN (1) | CN1211357C (ko) |
AT (1) | ATE311361T1 (ko) |
AU (1) | AU2001254685A1 (ko) |
BR (1) | BR0109464A (ko) |
CA (1) | CA2403392A1 (ko) |
DE (1) | DE60115403T2 (ko) |
IT (1) | IT1318395B1 (ko) |
MX (1) | MXPA02009139A (ko) |
WO (1) | WO2001068590A1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2036884A1 (en) | 2007-09-14 | 2009-03-18 | Repsol Ypf S.A. | Process for producing fluorinated isocyanates and carbamates |
EP2199278B1 (en) * | 2008-12-19 | 2011-09-14 | Dow Global Technologies LLC | Process for the Production of Aromatic Urethanes |
EP2230228A1 (en) | 2009-03-16 | 2010-09-22 | Bayer MaterialScience AG | Process for preparing aromatic carbamates |
WO2011048124A1 (de) | 2009-10-21 | 2011-04-28 | Basf Se | Verfahren zur herstellung von urethanen |
HUE034953T2 (en) | 2013-05-22 | 2018-03-28 | Covestro Deutschland Ag | Zinc complex compounds and their use as catalysts in the reaction of amines with dialkyl carbonates |
CN110650944B (zh) | 2017-05-15 | 2022-07-19 | 科思创德国股份有限公司 | 基于二氧化硅的锌催化剂、它们的制备以及在胺的烷氧基羰基化中的用途 |
KR20200069495A (ko) | 2018-12-07 | 2020-06-17 | 송관권 | 흙막이 차수벽체 및 지반보강, 지반개량 시공방법 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4268683A (en) * | 1980-02-21 | 1981-05-19 | The Dow Chemical Company | Preparation of carbamates from aromatic amines and organic carbonates |
US4268684A (en) * | 1980-02-25 | 1981-05-19 | The Dow Chemical Company | Preparation of carbamates from aromatic amines and organic carbonates |
IT1141960B (it) * | 1981-01-28 | 1986-10-08 | Anic Spa | Procedimento per la preparazione di uretani aromatici |
GB8402995D0 (en) * | 1984-02-04 | 1984-03-07 | Bp Chem Int Ltd | Transesterification process |
US4550188A (en) * | 1984-06-27 | 1985-10-29 | The Dow Chemical Company | Preparation of carbamates |
IT1183332B (it) * | 1985-02-08 | 1987-10-22 | Enichem Sintesi | Procedimento per la produzione di n-metilcarbammati |
IT1229144B (it) * | 1989-04-07 | 1991-07-22 | Enichem Sintesi | Procedimento per la produzione di carbammati. |
DE4113156A1 (de) * | 1991-04-23 | 1993-01-14 | Bayer Ag | Verfahren zur herstellung von poly(o-alkylurethanen) der diphenylmethanreihe |
IT1282023B1 (it) * | 1995-07-06 | 1998-03-06 | Mini Ricerca Scient Tecnolog | Procedimento per la produzione di uretani aromatici |
IT1282022B1 (it) * | 1995-07-06 | 1998-03-06 | Mini Ricerca Scient Tecnolog | Procedimento per la produzione di carbammati aromatici |
IT1292030B1 (it) * | 1997-05-29 | 1999-01-25 | Mini Ricerca Scient Tecnolog | Procedimento per la sintesi di uretani aromatici |
-
2000
- 2000-03-17 IT IT2000MI000547A patent/IT1318395B1/it active
-
2001
- 2001-03-13 JP JP2001567687A patent/JP4988118B2/ja not_active Expired - Fee Related
- 2001-03-13 AT AT01927725T patent/ATE311361T1/de not_active IP Right Cessation
- 2001-03-13 BR BR0109464-5A patent/BR0109464A/pt not_active IP Right Cessation
- 2001-03-13 MX MXPA02009139A patent/MXPA02009139A/es unknown
- 2001-03-13 CA CA002403392A patent/CA2403392A1/en not_active Abandoned
- 2001-03-13 CN CNB018089844A patent/CN1211357C/zh not_active Expired - Fee Related
- 2001-03-13 AU AU2001254685A patent/AU2001254685A1/en not_active Abandoned
- 2001-03-13 WO PCT/EP2001/002829 patent/WO2001068590A1/en active IP Right Grant
- 2001-03-13 DE DE60115403T patent/DE60115403T2/de not_active Expired - Lifetime
- 2001-03-13 KR KR1020027012269A patent/KR100746846B1/ko active IP Right Grant
- 2001-03-13 EP EP01927725A patent/EP1268409B1/en not_active Expired - Lifetime
- 2001-03-13 US US10/221,928 patent/US20030171526A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE60115403D1 (de) | 2006-01-05 |
MXPA02009139A (es) | 2004-09-06 |
BR0109464A (pt) | 2003-06-03 |
US20030171526A1 (en) | 2003-09-11 |
WO2001068590A1 (en) | 2001-09-20 |
CN1211357C (zh) | 2005-07-20 |
EP1268409A1 (en) | 2003-01-02 |
JP2003527367A (ja) | 2003-09-16 |
JP4988118B2 (ja) | 2012-08-01 |
IT1318395B1 (it) | 2003-08-25 |
ATE311361T1 (de) | 2005-12-15 |
CN1427817A (zh) | 2003-07-02 |
DE60115403T2 (de) | 2006-07-27 |
EP1268409B1 (en) | 2005-11-30 |
KR20030029042A (ko) | 2003-04-11 |
ITMI20000547A0 (it) | 2000-03-17 |
CA2403392A1 (en) | 2001-09-20 |
ITMI20000547A1 (it) | 2001-09-17 |
AU2001254685A1 (en) | 2001-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1116177A (en) | Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates | |
JP5645911B2 (ja) | 芳香族カルバメートの製造方法 | |
US4146727A (en) | Process for the preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates by the acid rearrangement of an (alkoxycarbonyl) phenylaminomethylphenyl compound | |
US3992430A (en) | Process for preparing aromatic isocyanates | |
EP1255728B1 (en) | Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases | |
KR100746846B1 (ko) | 방향족 우레탄의 연속 합성법 | |
KR20030057466A (ko) | 카르바메이트의 제조 방법 및 이소시아네이트의 제조 방법 | |
EP0881213B1 (en) | Process for the synthesis of aromatic urethanes | |
EP0016441B1 (en) | A method for the preparation of a mixture of diphenyl methane dicarbamates and polymethylene polyphenyl carbamates | |
US4163019A (en) | Production of 4,4'-alkylidene diphenyl diisocyanate | |
US4398036A (en) | Preparation of N-monosubstituted carbamates | |
US4172948A (en) | Preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates | |
US4230876A (en) | Process for the preparation of urethanes | |
JPH06228077A (ja) | ウレタン化合物の製造方法 | |
Lin et al. | An efficient one-pot synthesis of aliphatic diisocyanate from diamine and aiphenyl carbonate | |
WO2001047870A2 (en) | Process for the production of aromatic polycarbamates | |
US4267353A (en) | Preparation of aromatic urethanes | |
KR920005916B1 (ko) | 우레탄의 제조 방법 | |
JPH04235954A (ja) | ウレタン化合物の製造方法 | |
JPH0245617B2 (ko) | ||
JP2003201275A (ja) | 芳香族ウレタン化合物の製造方法 | |
JPH03127768A (ja) | 芳香族ポリカーバメートの製造方法 | |
CS203020B2 (cs) | Způsob přípravý difenylrnethanmonokarbamátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů | |
HU176083B (hu) | Eljárás izociánsav-észterek előállítására | |
JPH01203359A (ja) | 芳香族ポリカーバメートの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20120727 Year of fee payment: 6 |
|
FPAY | Annual fee payment |
Payment date: 20130723 Year of fee payment: 7 |
|
FPAY | Annual fee payment |
Payment date: 20140722 Year of fee payment: 8 |
|
FPAY | Annual fee payment |
Payment date: 20160630 Year of fee payment: 10 |
|
FPAY | Annual fee payment |
Payment date: 20170704 Year of fee payment: 11 |
|
FPAY | Annual fee payment |
Payment date: 20180628 Year of fee payment: 12 |