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Extract from the Register of European Patents

EP About this file: EP0204141

EP0204141 - USE OF UREA AND/OR BIURET GROUPS CONTAINING POLYISOCYANATES AS ISOCYANATE COMPONENT IN THE PREPARATION OF PLASTICS BY THE REACTION INJECTION MOLDING PROCESS [Right-click to bookmark this link]
Former [1986/50]Process for the preparation of polyisocyanate compositions containing urea and/or biuret groups, polyisocyanate compositions prepared by this process and their use as isocyanate components in the preparation of plastics by the isocyanate-polyaddition process
[1990/38]
StatusNo opposition filed within time limit
Status updated on  20.07.1991
Database last updated on 15.06.2024
Most recent event   Tooltip20.07.1991No opposition filed within time limitpublished on 11.09.1991 [1991/37]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1986/50]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Rasshofer, Werner, Dr.
Wolfskaul 10
D-5000 Köln 80 / DE
02 / Paul, Reiner, Dr.
Oberhausenerstrasse 55
D-4330 Mülheim-Ruhr / DE
03 / Seel, Klaus, Dr.
Märchenstrasse 72
D-5000 Köln 80 / DE
04 / Weber, Christian, Dr.
Paul-Klee-Strasse 68a
D-5090 Leverkusen / DE
[1986/50]
Application number, filing date86105862.628.04.1986
[1986/50]
Priority number, dateDE1985351673009.05.1985         Original published format: DE 3516730
[1986/50]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0204141
Date:10.12.1986
Language:DE
[1986/50]
Type: A3 Search report 
No.:EP0204141
Date:28.09.1988
Language:DE
[1988/39]
Type: B1 Patent specification 
No.:EP0204141
Date:19.09.1990
Language:DE
[1990/38]
Search report(s)(Supplementary) European search report - dispatched on:EP08.08.1988
ClassificationIPC:C08G18/12, C08G18/78, C08G18/80, C07C275/28, C07C275/62
[1990/38]
CPC:
C08G18/6603 (EP,US); C08G18/12 (EP,US); C08G18/6614 (EP,US);
C08G18/7818 (EP,US); C08G2120/00 (EP,US); Y10S521/901 (EP,US);
Y10S521/902 (EP,US) (-)
Former IPC [1986/50]C08G18/12, C08G18/78, C08G18/80, C07C127/19, C07C127/24
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL,   SE [1986/50]
TitleGerman:VERWENDUNG VON HARNSTOFF- UND/ODER BIURETGRUPPEN AUFWEISENDENPOLYISOCYANAT-ZUBEREITUNGEN ALS ISOCYANAT KOMPONENTE BEI DER HERSTELLUNG VON KUNSTSTOFFEN NACH DEM VERFAHREN DER REAKTIONSSPRITZGUSSTECHNIK[1990/38]
English:USE OF UREA AND/OR BIURET GROUPS CONTAINING POLYISOCYANATES AS ISOCYANATE COMPONENT IN THE PREPARATION OF PLASTICS BY THE REACTION INJECTION MOLDING PROCESS[1990/38]
French:UTILISATION DE POLYISOCYANATES CONTENANT DES GROUPES UREE ET/OU BIURET COMME COMPOSANTS D'ISOCYANATES POUR LA PREPARATION DE MATIERES PLASTIQUES PAR LE PROCEDE DE MOULAGE PAR INJECTION:[1990/38]
Former [1986/50]Verfahren zur Herstellung von Harnstoff- und/oder Biuretgruppen aufweisenden Polyisocyanat-Zubereitungen, die nach diesem Verfahren erhältlichen Polyisocyanat-Zubereitungen und ihre Verwendung als Isocyanatkomponente bei der Herstellung von Kunststoffen nach dem Isocyanat-Polyadditionsverfahren
Former [1986/50]Process for the preparation of polyisocyanate compositions containing urea and/or biuret groups, polyisocyanate compositions prepared by this process and their use as isocyanate components in the preparation of plastics by the isocyanate-polyaddition process
Former [1986/50]Procédé de préparation de compositions de polyisocyanate contenant des groupes urée et/ou biuret, compositions de polyisocyanate préparées par ce procédé et leur utilisation comme composants d'isocyanate pour la préparation de matières plastiques par le procédé de polyaddition d'isocyanate
Examination procedure28.04.1986Examination requested  [1986/50]
18.10.1989Despatch of a communication from the examining division (Time limit: M04)
03.11.1989Reply to a communication from the examining division
13.03.1990Despatch of communication of intention to grant (Approval: Yes)
27.03.1990Communication of intention to grant the patent
05.05.1990Fee for grant paid
05.05.1990Fee for publishing/printing paid
Opposition(s)20.06.1991No opposition filed within time limit [1991/37]
Fees paidRenewal fee
14.03.1988Renewal fee patent year 03
21.03.1989Renewal fee patent year 04
14.03.1990Renewal fee patent year 05
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Documents cited:Search[X]US3441588  (WAGNER KUNO, et al);
 [A]US3824266  (DIETRICH W, et al);
 [AD]DE2261065  (BASF AG)
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.