DE69224495T2 - Verfahren zur selektiven Herstellung von 4,4-Methylen-bis-(N-phenylalkylcarbamate) - Google Patents

Verfahren zur selektiven Herstellung von 4,4-Methylen-bis-(N-phenylalkylcarbamate)

Info

Publication number
DE69224495T2
DE69224495T2 DE69224495T DE69224495T DE69224495T2 DE 69224495 T2 DE69224495 T2 DE 69224495T2 DE 69224495 T DE69224495 T DE 69224495T DE 69224495 T DE69224495 T DE 69224495T DE 69224495 T2 DE69224495 T2 DE 69224495T2
Authority
DE
Germany
Prior art keywords
phenylalkylcarbamate
methylene
bis
selective production
filtrating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69224495T
Other languages
English (en)
Other versions
DE69224495D1 (de
Inventor
Jae Seung Oh
Eung Jo Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Corp
Original Assignee
Lucky Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1019910010676A external-priority patent/KR940010279B1/ko
Priority claimed from KR1019910024291A external-priority patent/KR950012535B1/ko
Application filed by Lucky Ltd filed Critical Lucky Ltd
Application granted granted Critical
Publication of DE69224495D1 publication Critical patent/DE69224495D1/de
Publication of DE69224495T2 publication Critical patent/DE69224495T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • C07C269/06—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 by reactions not involving the formation of carbamate groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE69224495T 1991-06-26 1992-06-23 Verfahren zur selektiven Herstellung von 4,4-Methylen-bis-(N-phenylalkylcarbamate) Expired - Fee Related DE69224495T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019910010676A KR940010279B1 (ko) 1991-06-26 1991-06-26 N-페닐알킬카바메이트의 축합에 의한 4,4-메틸렌-비스(n-페닐 알킬카바메이트)의 선택적 제조방법
KR1019910024291A KR950012535B1 (ko) 1991-12-24 1991-12-24 4,4-메틸렌-비스-(n-페닐알킬카바메이트)의 선택적 제조방법

Publications (2)

Publication Number Publication Date
DE69224495D1 DE69224495D1 (de) 1998-04-02
DE69224495T2 true DE69224495T2 (de) 1998-08-13

Family

ID=26628663

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224495T Expired - Fee Related DE69224495T2 (de) 1991-06-26 1992-06-23 Verfahren zur selektiven Herstellung von 4,4-Methylen-bis-(N-phenylalkylcarbamate)

Country Status (7)

Country Link
US (1) US5384424A (de)
EP (1) EP0520377B1 (de)
JP (1) JP2599865B2 (de)
AT (1) ATE163407T1 (de)
DE (1) DE69224495T2 (de)
DK (1) DK0520377T3 (de)
ES (1) ES2113388T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1689495A (en) * 1994-01-27 1995-08-15 Trustees Of Columbia University In The City Of New York, The Enantioselective receptors for amino acid derivatives, and other compounds
US9062161B2 (en) 2011-11-08 2015-06-23 Institute Of Process Engineering, Chinese Academy Of Sciences Method for preparing polymethylene polyphenyl polycarbamate

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946768A (en) * 1957-08-12 1960-07-26 Bayer Ag Condensation products of carbamic acid esters
GB1398975A (en) * 1971-08-16 1975-06-25 Ici Ltd Heat treatment and distillation of methylene bridged polyphenyl polyisocyanates
DD130143B1 (de) * 1975-08-15 1979-12-27 Guenter Muecke Verfahren zur kontinuierlichen thermischen abtrennung organischer isocyanate aus fluessigem destillationsrueckstand
US4162362A (en) * 1978-10-20 1979-07-24 Atlantic Richfield Company Process for the preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates
US4230877A (en) * 1979-03-22 1980-10-28 Atlantic Richfield Company Method for increasing the 4,4'dicarbamate isomer of the diphenylmethane dicarbamates during preparation thereof
CA1150293A (en) * 1979-10-01 1983-07-19 Keisuke Wada Process for the production of methylenedicarbanilates
US4287132A (en) * 1980-09-29 1981-09-01 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
US4303794A (en) * 1980-12-22 1981-12-01 The Dow Chemical Company Separation and recovery of 4,4'-methylene dimethyl diphenyldicarbamate
JPS57171953A (en) * 1981-04-15 1982-10-22 Asahi Chem Ind Co Ltd Improved method for condensing n-phenylcarbamic acid ester
JPS5862151A (ja) * 1981-10-12 1983-04-13 Asahi Chem Ind Co Ltd Ｎ−フエニルカルバミン酸エステルの縮合方法
JPS59172451A (ja) * 1983-03-18 1984-09-29 Asahi Chem Ind Co Ltd ポリイソシアナ−ト類の製造方法
JPS60231640A (ja) * 1984-05-02 1985-11-18 Asahi Chem Ind Co Ltd イソシアナ−トの連続的製法
JPH0240061B2 (ja) * 1984-05-10 1990-09-10 Asahi Chemical Ind Isoshianaatonorenzokutekiseizohoho
JPS6267059A (ja) * 1985-09-18 1987-03-26 Nippon Kokan Kk <Nkk> ジフエニルメタンジカルバミン酸エステル類の製造方法
JPH02757A (ja) * 1988-02-10 1990-01-05 Sumitomo Metal Ind Ltd 芳香族ポリイソシアネートの製造方法
JPH0283363A (ja) * 1988-09-19 1990-03-23 Sumitomo Metal Ind Ltd 芳香族ポリカーバメートの製造方法

Also Published As

Publication number Publication date
EP0520377A3 (en) 1993-06-16
EP0520377B1 (de) 1998-02-25
ES2113388T3 (es) 1998-05-01
DE69224495D1 (de) 1998-04-02
JPH0687816A (ja) 1994-03-29
EP0520377A2 (de) 1992-12-30
DK0520377T3 (da) 1998-04-14
US5384424A (en) 1995-01-24
JP2599865B2 (ja) 1997-04-16
ATE163407T1 (de) 1998-03-15

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DE69224495T2 (de) Verfahren zur selektiven Herstellung von 4,4-Methylen-bis-(N-phenylalkylcarbamate)
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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee