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Extract from the Register of European Patents

EP About this file: EP0518021

EP0518021 - Method for the production of alpha, omega-unsaturated oligomers containing methylidene groups from alpha, omega-diolefines in the presence of organoaluminium compounds as catalyst [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.06.1998
Database last updated on 09.09.2024
Most recent event   Tooltip26.06.1998No opposition filed within time limitpublished on 12.08.1998 [1998/33]
Applicant(s)For all designated states
Röhm GmbH
Chemische Fabrik Kirschenallee
64293 Darmstadt / DE
[N/P]
Former [1995/51]For all designated states
RÖHM GMBH Chemische Fabrik
Kirschenallee
D-64293 Darmstadt / DE
Former [1992/51]For all designated states
HÜLS AKTIENGESELLSCHAFT
D-45764 Marl / DE
Inventor(s)01 / Streck, Roland, Dr.
Leverkusener Strasse 12
W-4370 Marl 1 / DE
02 / Monkiewicz, Jaroslaw, Dr.
Am Alten Sportplatz 17a
W-4370 Marl 1 / DE
03 / Wey, Hans Günther, Dr.
Kassenberg 23
W-4330 Mühlheim/Ruhr / DE
[1992/51]
Application number, filing date92106196.610.04.1992
[1992/51]
Priority number, dateDE1991411933212.06.1991         Original published format: DE 4119332
[1992/51]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0518021
Date:16.12.1992
Language:DE
[1992/51]
Type: A3 Search report 
No.:EP0518021
Date:18.01.1995
Language:DE
[1995/03]
Type: B1 Patent specification 
No.:EP0518021
Date:20.08.1997
Language:DE
[1997/34]
Search report(s)(Supplementary) European search report - dispatched on:EP28.11.1994
ClassificationIPC:C07C2/30, B01J31/14, C07C2/38, C07C11/21
[1995/01]
CPC:
C07C2/38 (EP,US); C07C11/21 (EP,US); C07C2531/14 (EP,US)
Former IPC [1992/51]C07C2/30, B01J31/14
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1992/51]
TitleGerman:Verfahren zur Herstellung von Methylidengruppen enthaltenden Alpha-Omega-ungesättigten Oligomeren aus Alpha, Omega-Diolefinen in Gegenwart von aluminiumorganischen Verbindungen als Katalysator[1992/51]
English:Method for the production of alpha, omega-unsaturated oligomers containing methylidene groups from alpha, omega-diolefines in the presence of organoaluminium compounds as catalyst[1992/51]
French:Procédé pour la fabrication d'oligomères alpha, oméga-insaturés contenant des groupements méthylidènes à partir de dioléfines-alpha, oméga en présence de composés aluminiumorganiques comme catalyseur[1992/51]
Examination procedure27.06.1995Examination requested  [1995/34]
16.10.1995Despatch of a communication from the examining division (Time limit: M04)
16.01.1996Reply to a communication from the examining division
01.04.1996Despatch of a communication from the examining division (Time limit: M02)
27.04.1996Reply to a communication from the examining division
24.07.1996Despatch of communication of intention to grant (Approval: Yes)
27.11.1996Communication of intention to grant the patent
16.01.1997Fee for grant paid
16.01.1997Fee for publishing/printing paid
Opposition(s)21.05.1998No opposition filed within time limit [1998/33]
Fees paidRenewal fee
17.03.1994Renewal fee patent year 03
01.04.1995Renewal fee patent year 04
30.04.1996Renewal fee patent year 05
24.04.1997Renewal fee patent year 06
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]US3522321  (DEYOUNG EDWIN L) [A] 1 * claim 1 *;
 [A]US3088985  (GUNTHER WILKE) [A] 1 * claim 1 *;
 [DA]US3391209  (ERICH MARCUS) [DA] 1 * claim 1 *
 [DA]  - G. HATA ET AL, JOURNAL OF ORGANIC CHEMISTRY., EASTON US, (1963), vol. 28, no. 11, pages 3237 - 3238 [DA] 1
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.