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Extract from the Register of European Patents

EP About this file: EP0104531

EP0104531 - Cycloaliphatic diisocyanates, possibly in the form of a mixture of isomers, method for their preparation and their use as starting products in the preparation of synthetic products of the polyurethane type [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  22.09.1986
Database last updated on 28.09.2024
Most recent event   Tooltip22.09.1986No opposition filed within time limitpublished on 12.11.1986 [1986/46]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1984/14]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
Neuenhauser Weg 1
D-5060 Bergisch-Gladbach 2 / DE
03 / Penninger, Stefan, Dr.
Pommernallee 5
D-4047 Dormagen 1 / DE
04 / Stutz, Herbert, Dr.
Schulstrasse 81
D-4047 Dormagen 5 / DE
[1984/14]
Application number, filing date83108982.612.09.1983
[1984/14]
Priority number, dateDE1982323499622.09.1982         Original published format: DE 3234996
[1984/14]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0104531
Date:04.04.1984
Language:DE
[1984/14]
Type: B1 Patent specification 
No.:EP0104531
Date:21.11.1985
Language:DE
[1985/47]
Search report(s)(Supplementary) European search report - dispatched on:EP30.01.1984
ClassificationIPC:C07C119/045, C08G18/75
[1984/14]
CPC:
C07C265/10 (EP,US); C08G18/758 (EP,US)
Designated contracting statesBE,   DE,   FR,   GB,   IT [1984/14]
TitleGerman:Gegebenenfalls Isomerengemische darstellende cycloaliphatische Diisocyanate, ein Verfahren zu ihrer Herstellung, sowie ihre Verwendung als Ausgangsmaterialien bei der Herstellung von Polyurethankunststoffen[1984/14]
English:Cycloaliphatic diisocyanates, possibly in the form of a mixture of isomers, method for their preparation and their use as starting products in the preparation of synthetic products of the polyurethane type[1984/14]
French:Diisocyanates cycloaliphatiques, éventuellement sous forme de mélanges d'isomères, leur méthode de préparation et leur utilisation comme produits de départ dans la préparation de produits synthétiques du type polyuréthanes[1984/14]
Examination procedure12.09.1983Examination requested  [1984/14]
23.08.1984Despatch of a communication from the examining division (Time limit: M04)
22.10.1984Reply to a communication from the examining division
12.12.1984Despatch of communication of intention to grant (Approval: )
04.03.1985Communication of intention to grant the patent
09.03.1985Fee for grant paid
09.03.1985Fee for publishing/printing paid
Opposition(s)22.08.1986No opposition filed within time limit [1986/46]
Fees paidRenewal fee
20.08.1985Renewal fee patent year 03
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Documents cited:Search[Y]DE2361986  (POLYCHROME CORP);
 [Y]EP0024665  ;
 [Y]EP0046917  (BAYER AG [DE])
ExaminationDE1768832
    - Houben-Weyl, Methoden der organischen Chemie, Bd. 111(1950), S. 356-357
    - Bayer-Kunststoffe, 3e Ausgabe (1963) 543
    - Beilsteins Handbuch der organischen Chemie, 4e Aufl, (1930), Bd 13, S. 238, 254
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.