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Extract from the Register of European Patents

EP About this file: EP0356814

EP0356814 - Method for the preparation of polyether polyols based on aromatic di- and/or polyamines and their use in polyurethane and polyisocyanate synthetic materials [Right-click to bookmark this link]
Former [1990/10]Polyether polyols based on aromatic di- and/or polyamines, method for their preparation and their use in polyurethane and polyisocyanate synthetic materials
[1994/46]
StatusNo opposition filed within time limit
Status updated on  21.09.1995
Database last updated on 14.09.2024
Most recent event   Tooltip21.09.1995No opposition filed within time limitpublished on 08.11.1995 [1995/45]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1990/10]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Dietrich, Manfred, Dr.
Dresdener Strasse 16
D-5090 Leverkusen 1 / DE
02 / Kaufung, Reinhard, Dr. c/o Sumitomo Bayer
Urethane Co., Ltd. 13-26, 3-chome, Kukuchi
Amagasaki, Hyogo Pref. 661 / JP
[1990/10]
Application number, filing date89115151.617.08.1989
[1990/10]
Priority number, dateDE1988382929030.08.1988         Original published format: DE 3829290
[1990/10]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0356814
Date:07.03.1990
Language:DE
[1990/10]
Type: A3 Search report 
No.:EP0356814
Date:15.05.1991
Language:DE
[1991/20]
Type: B1 Patent specification 
No.:EP0356814
Date:17.11.1994
Language:DE
[1994/46]
Search report(s)(Supplementary) European search report - dispatched on:EP28.03.1991
ClassificationIPC:C08G65/26, C08G18/50
[1990/10]
CPC:
C08G18/4837 (EP,US); C08G18/4845 (EP,US); C08G18/5033 (EP,US);
C08G65/2627 (EP,US); C08G2110/0025 (EP,US); C08G2110/005 (EP,US);
C08G2110/0058 (EP,US); C08G2115/02 (EP,US) (-)
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1990/10]
TitleGerman:Verfahren zur Herstellung von Polyetherpolyolen auf Basis aromatischer Di- und/oder Polyamine und deren Verwendung für Polyurethan- und Polyisocyanurat-Kunststoffe[1994/46]
English:Method for the preparation of polyether polyols based on aromatic di- and/or polyamines and their use in polyurethane and polyisocyanate synthetic materials[1994/46]
French:Procédé pour la préparation des polyéther-polyols fondés sur des di- et/ou polyamines aromatiques et leur utilisation pour des materiaux synthétiques en polyuréthane et polyisocyanate[1994/46]
Former [1990/10]Polyetherpolyole auf Basis aromatischer Di- und/oder Polyamine, Verfahren zu ihrer Herstellung und Verwendung für Polyurethan- und Polyisocyanurat-Kunststoffe
Former [1990/10]Polyether polyols based on aromatic di- and/or polyamines, method for their preparation and their use in polyurethane and polyisocyanate synthetic materials
Former [1990/10]Polyéther-polyols fondés sur des di- et/ou polyamines aromatiques, procédé pour leur préparation et leur utilisation pour des materiaux synthétiques en polyuréthane et polyisocyanate
Examination procedure17.08.1989Examination requested  [1990/10]
23.04.1993Despatch of a communication from the examining division (Time limit: M04)
14.05.1993Reply to a communication from the examining division
04.10.1993Despatch of a communication from the examining division (Time limit: M02)
18.10.1993Reply to a communication from the examining division
31.03.1994Despatch of communication of intention to grant (Approval: Yes)
25.04.1994Communication of intention to grant the patent
10.06.1994Fee for grant paid
10.06.1994Fee for publishing/printing paid
Opposition(s)18.08.1995No opposition filed within time limit [1995/45]
Fees paidRenewal fee
28.12.1990Renewal fee patent year 03
15.07.1992Renewal fee patent year 04
13.07.1993Renewal fee patent year 05
14.07.1994Renewal fee patent year 06
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Documents cited:Search[X]US4614754  (CHRISTMAN DONALD L [US]);
 [X]US4243759  (HAAS JAMES L);
 [X]EP0239891  (BASF CORP [US]);
 [XD]EP0001800  (MOBAY CHEMICAL CORP [US]);
 [YP]EP0318748
 [X]  - CHEMICAL ABSTRACTS, vol. 100, no. 12, März 1984 Columbus, Ohio, USA & JP-58134108 (10.08.1983)" Seite 39; ref. no. 86692V
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.