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Title: EP0006613A1: Process for preparing N,N'-diacetylethylene diamine.[German][French]
[ Derwent Title ]


Country:
Kind:
EP European Patent Office (EPO)
A1 APPLICATION PUBLISHED WITH SEARCH REPORT i (See also: EP0006613B1, EP0006613B2 )

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12 pages

 
Inventor: ROSCHER GUNTER DR;
PRESSLER WILFRIED DR;

Assignee: HOECHST AG Germany
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Published / Filed: 1980-01-09 / 1979-06-27

Application Number: EP1979000102131

IPC Code: Advanced: C07C 67/00; C07C 231/00; C07C 231/02; C07C 233/36;

ECLA Code: C07C231/02;

National Class: C2C CFG KY PC2C CKY KY PC2C C20Y KY PC2C C271 KY PC2C C30Y KY PC2C C34Y KY PC2C C342 KY PC2C C59X KY PC2C C597 KY PC2C C602 KY PC2C C63X KY P

Priority Number:
1978-06-30  DE1978002828765

Abstract:     N,N'-Diacetylethylendiamin (DAED) wird hergestellt, indem man zuerst Ethylendiamin mit der stöchiometrischen Menge Essigsäure (2 Mol pro Mol Ethylendiamin) versetzt, die zumindest teilweise in Form von wässriger Essigsäure zugegeben wird. Im zweiten Schritt wird das in der Reaktionsmischung enthaltene Wasser abdestilliert. Dann wird das zurückbleibende Produkt mit überschüssiger Essigsäure versetzt. Dann wird erhitzt und die dabei gebildete Essigsäure abdestilliert und in die erste Stufe zurückgeführt. Das beim Abdestillieren der Essigsäure im Sumpf zurückbleibende DAED wird abgezogen.

INPADOC Legal Status:
Gazette date Code   Description (remarks)     List all possible codes for EP
2008-07-31 PGFP + Postgrant: annual fees paid to national office  FR
1999-04-02 REG
FR ST -
Reference to a national code
 Notification of lapse  FR
1999-04-01 PG25 - Lapsed in a contracting state announced via postgrant inform. from nat. office to epo (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)  DE (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)(DE 1999-04-01 )
1999-03-01 NLV4 - NL: lapsed or anulled due to non-payment of the annual fee   ( 1999-01-01 )
1999-02-26 PG25 - Lapsed in a contracting state announced via postgrant inform. from nat. office to epo (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)  FR (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)(FR 1999-02-26 )
1999-02-17 GBPC - GB: european patent ceased through non-payment of renewal fee   ( 1998-06-27 )
1999-01-01 PG25 - Lapsed in a contracting state announced via postgrant inform. from nat. office to epo (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)  NL (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)(NL 1999-01-01 )
1998-06-27 PG25 - Lapsed in a contracting state announced via postgrant inform. from nat. office to epo (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)  GB (LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES)(GB 1998-06-27 )
1997-08-14 PGFP + Postgrant: annual fees paid to national office  DE
1997-06-04 PGFP + Postgrant: annual fees paid to national office  GB
1997-05-27 PGFP + Postgrant: annual fees paid to national office  NL
1997-05-26 PGFP + Postgrant: annual fees paid to national office  FR
1993-01-18 NLR3 + NL: receipt of modified translations in the netherlands language after an opposition procedure  
1993-01-18 NLR2 NL: decision of opposition (OPPOSITIE GEDEELTELIJK GEGROND * OCTROOI GEWIJZIGD GEHANDHAAFD.)   (OPPOSITIE GEDEELTELIJK GEGROND * OCTROOI GEWIJZIGD GEHANDHAAFD.)
1992-11-27 ET3 + FR: translation filed ** decision concerning opposition  
1992-11-16 NLXE NL: other communications concerning EP-patents (part 3 heading xe) (PAT.BUL.02/86 DECISION ON OPPOSITION SHOULD BE DELETED)   (PAT.BUL.02/86 DECISION ON OPPOSITION SHOULD BE DELETED)
1992-08-26 AK + Designated contracting states:   (BE DE FR GB IT NL )
1992-08-26 27A Maintained as amended   ( 1992-08-26 )
1992-08-19 R27A + Maintained as amended (correction)  
1992-08-19 RB1 + Date and kind of second publication (correction)   ( 1981-09-16 )
1992-08-19 DB2 Date of publication of new second specification ** last entry deleted  
1990-12-31 BERE - BE: lapsed   (New owner: HOECHST A.G. 1990-06-30 )
1990-06-30 PG25 - Lapsed in a contracting state announced via postgrant inform. from nat. office to epo  BE (BE 1990-06-30 )
1989-06-30 ITTA IT: last paid annual fee  
1989-06-19 PGFP + Postgrant: annual fees paid to national office  BE
1987-09-30 R26 - Opposition filed (correction)   ( 1982-06-05 BAYER AG, LEVERKUSEN KONZERNVERWALTUNG RP PATENTAB)
1986-04-25 EN3 - FR: translation not filed ** decision concerning opposition  
1986-03-17 NLR3 + NL: receipt of modified translations in the netherlands language after an opposition procedure  
1986-01-16 NLR2 NL: decision of opposition  
1985-12-24 ITF + IT: translation for a ep patent filed   (New owner: ING. C. GREGORJ S.P.A. )
1985-12-04 AK + Designated contracting states:   (BE DE FR GB IT NL )
1985-12-04 27A Maintained as amended  
1985-06-04 ITF + IT: translation for a ep patent filed   (New owner: ING. C. GREGORJ S.P.A. )
1982-08-18 26 - Opposition filed   ( 1982-06-05 BAYER AG, LEVERKUSEN ZENTRALBEREICH PATENTE, MARKE)
1981-12-03 REF Corresponds to:   ( DE02960828 1981-12-03)
1981-09-30 RAP2 Transfer of rights of an ep publication   (New owner: HOECHST AKTIENGESELLSCHAFT )
1981-09-16 AK + Designated contracting states:   (BE DE FR GB IT NL )
1981-05-22 ITF + IT: translation for a ep patent filed   (New owner: ING. C. GREGORJ S.P.A. )
1980-09-03 17P + Request for examination filed  
1980-01-09 AK + Designated contracting states:   (BE DE FR GB IT NL )

  
Buy Now: Family Legal Status Report

Designated Country: European patent: BE;DE;FR;GB;IT;NL

       
Family:
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PDF
PublicationPub. DateFiled   Assignee   Title
Buy PDF - 3pp US4219500 1980-08-26  1979-06-28  Hoechst Aktiengesellschaft Process for the manufacture of N,N'-diacetylethylene diamine
Buy PDF JP63038983B4 1988-08-03  1979-06-29  HOECHST AG  
Buy PDF JP55009077A2 1980-01-22  1979-06-29  HOECHST AG MANUFACTURE OF N*N**DIACETYLETHYLENE DIAMINE
Buy PDF JP01691404C3 1992-08-27  1979-06-29     
Buy PDF - 5pp EP0006613B2 1992-08-26  1979-06-27  HOECHST AKTIENGESELLSCHAFT Process for preparing N,N'-diacetylethylene diamine
Buy PDF - 4pp EP0006613B1 1981-09-16  1979-06-27  HOECHST AKTIENGESELLSCHAFT Process for preparing N,N'-diacetylethylene diamine
Buy PDF - 12pp EP0006613A1 1980-01-09  1979-06-27  HOECHST AKTIENGESELLSCHAFT Process for preparing N,N'-diacetylethylene diamine
  DE2960828C0 1981-12-03  1979-06-27  HOECHST AKTIENGESELLSCHAFT PROCESS FOR PREPARING N,N'-DIACETYLETHYLENE DIAMINE
Buy PDF - 11pp DE2828765A1 1980-01-10  1978-06-30  Hoechst AG, 6000 Frankfurt Verfahren zur Herstellung von N,N'-Diacetylethylendiamin
Buy PDF CA1113497A1 1981-12-01  1979-06-29  HOECHST AG PROCESS FOR THE MANUFACTURE OF N,N'-DIACETYLETHYLENE DIAMINE
  10 family members shown above     - Based on data when this patent issued.


Other Abstract Info: CHEMABS 092(25)214913Y

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