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EP0046556
European procedure
Extract from the Register of European Patents
EP About this file: EP0046556
| EP0046556 - Diisocyanates or mixtures of diisocyanates of the diphenylmethane class, processes for their preparation, as well as their use as synthesis components in the manufacture of polyurethanes by the isocyanate-polyaddition process [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 09.05.2025 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1982/09] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Knöfel, Hartmut, Dr. Dülmener Weg 21 D-5068 Odenthal-Erberich / DE | 02 /
Brockelt, Michael Neuhauser Weg 1 D-5060 Bergisch Gladbach 2 / DE | [1982/09] | Application number, filing date | 81106366.8 | 17.08.1981 | [1982/09] | Priority number, date | DE19803032128 | 26.08.1980 Original published format: DE 3032128 | [1982/09] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0046556 | Date: | 03.03.1982 | Language: | DE | [1982/09] | Type: | B1 Patent specification | No.: | EP0046556 | Date: | 09.03.1983 | Language: | DE | [1983/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.12.1981 | Classification | IPC: | C07C119/048, C07C118/02, C08G18/76 | [1982/09] | CPC: |
C07C265/12 (EP,US);
C07C205/06 (EP,US);
C08G18/7671 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT [1982/09] | Title | German: | Neue Diisocyanate bzw. Diisocyanatgemische der Diphenylmethanreihe, Verfahren zu ihrer Herstellung, sowie ihre Verwendung als Aufbaukomponente bei der Herstellung von Polyurethankunststoffen nach dem Isocyanat-Polyadditionsverfahren | [1982/09] | English: | Diisocyanates or mixtures of diisocyanates of the diphenylmethane class, processes for their preparation, as well as their use as synthesis components in the manufacture of polyurethanes by the isocyanate-polyaddition process | [1982/09] | French: | Diisocyanates et mélanges de diisocyanates du type diphénylméthane, procédé pour leur préparation ainsi que leur application comme composants de synthèse lors de la fabrication de polyuréthanes en utilisant le procédé de polyaddition des isocyanates | [1982/09] | Examination procedure | 17.08.1981 | Examination requested [1982/09] | 02.06.1982 | Despatch of communication of intention to grant (Approval: ) | 01.09.1982 | Communication of intention to grant the patent | 09.09.1982 | Fee for grant paid | 09.09.1982 | Fee for publishing/printing paid | Opposition(s) | 12.12.1983 | No opposition filed within time limit [ N /P ] |
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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 | US3152162 [ ] (PETER FISCHER, et al); | EP0024323 [ ] (BAYER AG [DE]); | US3644457 [ ] (KONIG KLAUS, et al); | DE1901993 [ ] (BASF AG); | GB1117066 [ ] (ICI LTD); | GB1013710 [ ] (DU PONT); | EP0024665 [ ]; | GB1163264 [ ] (SHELL INT RESEARCH [NL]) |