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Extract from the Register of European Patents

EP About this file: EP0025822

EP0025822 - Process for preparing polysiloxane-polyoxyalkylene copolymers and their use in preparing polyurethane foams [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 03.09.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1981/13]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / de Montigny, Armand, Dr.
Walter-Flex-Strasse 17
D-5090 Leverkusen / DE
02 / Illger, Hans-Walter, Dr.
Im Tentenfeld 27
D-5064 Rösrath / DE
03 / Gonzalez-Dörner, Alberto C., Dr.
c/o Metzeler INESPO Ctra. B-142 a Sentmenat Km. 6
Polinya Barcelona / ES
04 / Moretto, Hans-Heinrich, Dr.
Formesstrasse 13
D-5000 Köln 80 / DE
[1981/13]
Application number, filing date80103842.307.07.1980
[1981/13]
Priority number, dateDE1979292958821.07.1979         Original published format: DE 2929588
[1981/13]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0025822
Date:01.04.1981
Language:DE
[1981/13]
Type: A3 Search report 
No.:EP0025822
Date:08.07.1981
Language:DE
[1981/27]
Type: B1 Patent specification 
No.:EP0025822
Date:22.12.1982
Language:DE
[1982/51]
Search report(s)(Supplementary) European search report - dispatched on:EP07.05.1981
ClassificationIPC:C08G77/46, C08G81/00, C08J9/00, C08L75/04
[1981/25]
CPC:
C08G77/46 (EP,US); C08J9/0061 (EP,US); C08J2375/04 (EP,US);
C08J2483/00 (EP,US)
Former IPC [1981/13]C08G77/46, C08G81/00, C08G18/61
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL [1981/13]
TitleGerman:Verfahren zur Herstellung von Polysiloxan-Polyoxyalkylen-Mischpolymerisaten und deren Verwendung bei der Herstellung von Polyurethan-Schaumstoffen[1981/13]
English:Process for preparing polysiloxane-polyoxyalkylene copolymers and their use in preparing polyurethane foams[1981/13]
French:Procédé de préparation de copolymères polysiloxane-polyoxyalcylène et leur utilisation dans la préparation de mousses de polyuréthane[1981/13]
Examination procedure07.07.1980Examination requested  [1981/13]
05.04.1982Despatch of communication of intention to grant (Approval: )
28.06.1982Communication of intention to grant the patent
05.07.1982Fee for grant paid
05.07.1982Fee for publishing/printing paid
Opposition(s)22.09.1983No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
15.07.1982Renewal fee patent year 03
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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[AD]DE2802668  (BAYER AG);
 [A]DE1545110  (UNION CARBIDE CORP)
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.