DE3460297D1 - Improved process for preparing alkyl isocyanates - Google Patents

Improved process for preparing alkyl isocyanates

Info

Publication number
DE3460297D1
DE3460297D1 DE8484200660T DE3460297T DE3460297D1 DE 3460297 D1 DE3460297 D1 DE 3460297D1 DE 8484200660 T DE8484200660 T DE 8484200660T DE 3460297 T DE3460297 T DE 3460297T DE 3460297 D1 DE3460297 D1 DE 3460297D1
Authority
DE
Germany
Prior art keywords
alkyl
phenol
phenyl
thermal decomposition
urethan
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
Application number
DE8484200660T
Other languages
German (de)
English (en)
Inventor
Ugo Romano
Franco Rivetti
Giacomo Sasselli
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.)
ENICHEM SYNTHESIS S.P.A., PALERMO, IT
Original Assignee
Enichimica SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11176452&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3460297(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enichimica SpA filed Critical Enichimica SpA
Application granted granted Critical
Publication of DE3460297D1 publication Critical patent/DE3460297D1/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE8484200660T 1983-05-13 1984-05-08 Improved process for preparing alkyl isocyanates Expired DE3460297D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT21081/83A IT1164223B (it) 1983-05-13 1983-05-13 Procedimento perfezionato per la produzione di isocianati alchilici

Publications (1)

Publication Number Publication Date
DE3460297D1 true DE3460297D1 (en) 1986-08-21

Family

ID=11176452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484200660T Expired DE3460297D1 (en) 1983-05-13 1984-05-08 Improved process for preparing alkyl isocyanates

Country Status (7)

Country Link
US (1) US4514339A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0125726B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS59212455A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE20734T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1218669A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3460297D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1164223B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1183332B (it) * 1985-02-08 1987-10-22 Enichem Sintesi Procedimento per la produzione di n-metilcarbammati
IL81939A0 (en) * 1986-03-21 1987-10-20 Union Carbide Corp Process for preparing methyl isocyanate
TW200844080A (en) * 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
RU2434849C2 (ru) * 2007-01-11 2011-11-27 Асахи Касеи Кемикалз Корпорейшн Способ получения изоцианатов
WO2008120645A1 (ja) 2007-03-30 2008-10-09 Asahi Kasei Chemicals Corporation カルバミン酸エステルおよび芳香族ヒドロキシ化合物を含む組成物を用いるイソシアネートの製造方法、ならびにカルバミン酸エステル移送用および貯蔵用組成物
ES2710177T3 (es) 2008-05-15 2019-04-23 Asahi Chemical Ind Proceso para la producción de isocianato
JP5242678B2 (ja) 2008-05-15 2013-07-24 旭化成ケミカルズ株式会社 炭酸ジアリールを用いるイソシアネートの製造方法
CA2707336C (en) * 2009-08-21 2013-07-23 Asahi Kasei Chemicals Corporation N-substituted carbamic acid ester production method, isocyanate production method using such n-substituted carbamic acid ester, and composition for transfer and storage of n-substituted carbamic acid ester comprising n-substituted carbamic acid ester and aromatic hydroxy compound
US8957241B2 (en) 2011-02-21 2015-02-17 Asahi Kasei Chemicals Corporation Method for producing carbonyl compound

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products
US3366662A (en) * 1964-03-02 1968-01-30 Olin Mathieson Process for preparing isocyanates
US3919278A (en) * 1974-06-13 1975-11-11 Atlantic Richfield Co Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids
DE2512514C2 (de) * 1975-03-21 1982-12-30 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von aliphatischen Isocyanaten
US4123450A (en) * 1977-09-22 1978-10-31 Fmc Corporation Process for preparing alkyl isocyanates
DE2756928A1 (de) * 1977-12-21 1979-07-05 Bayer Ag Verfahren zur kontinuierlichen herstellung von monoisocyanaten

Also Published As

Publication number Publication date
US4514339A (en) 1985-04-30
ATE20734T1 (de) 1986-08-15
IT8321081A0 (it) 1983-05-13
IT8321081A1 (it) 1984-11-13
CA1218669A (en) 1987-03-03
IT1164223B (it) 1987-04-08
JPH0514705B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-02-25
EP0125726B2 (en) 1992-09-09
EP0125726B1 (en) 1986-07-16
EP0125726A1 (en) 1984-11-21
JPS59212455A (ja) 1984-12-01

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Legal Events

Date Code Title Description
8380 Miscellaneous part iii

Free format text: DER PATENTINHABER LAUTET RICHTIG: AGIP S.P.A., MAILAND/MILANO, IT

8363 Opposition against the patent
8380 Miscellaneous part iii

Free format text: DER PATENTINHABER LAUTET RICHTIG: ENICHEM SINTESI S.P.A., PALERMO, IT

8327 Change in the person/name/address of the patent owner

Owner name: ENICHEM SYNTHESIS S.P.A., PALERMO, IT

8328 Change in the person/name/address of the agent

Free format text: ZUMSTEIN, F., DIPL.-CHEM. DR.RER.NAT. KLINGSEISEN, F., DIPL.-ING., PAT.-ANWAELTE, 8000 MUENCHEN