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Extract from the Register of European Patents

EP About this file: EP0004069

EP0004069 - Process for the preparation of aqueous solutions or dispersions of polyurethanes and their use for the preparation of coatings or lacquers [Right-click to bookmark this link]
Former [1981/31]Process for the preparation of aqueous solutions or dispersions of polyurethanes, solutions or dispersions obtained by this process and their use for the preparation of coatings or lacquers
[1981/31]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 03.10.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Inventor(s)01 / Nachtkamp, Klaus, Dr.
Im Odinshof 17
D-5060 Bergisch-Gladbach / DE
02 / Pedain, Josef, Dr.
Haferkamp 6
D-5000 Köln 80 / DE
03 / Grammel, Jürgen, Dr.
Mörickestrasse 22
D-4047 Dormagen 5 / DE
[N/P]
Application number, filing date79100677.807.03.1979
Priority number, dateDE1978281114815.03.1978         Original published format: DE 2811148
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0004069
Date:19.09.1979
Language:DE
[N/P]
Type: B1 Patent specification 
No.:EP0004069
Date:05.08.1981
Language:DE
[1981/31]
Search report(s)(Supplementary) European search report - dispatched on:EP19.07.1979
ClassificationIPC:C08G18/10, C08G18/32, C09D3/72, D06M15/52
[1981/31]
CPC:
C08G18/283 (EP,US); C08G18/0804 (EP,US); C08G18/10 (EP,US);
Y10T428/31551 (EP,US)
C-Set:
C08G18/10, C08G18/3256 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   NL,   SE 
TitleGerman:Verfahren zur Herstellung von wässrigen Lösungen oder Dispersionen von Polyurethanen sowie ihre Verwendung zur Herstellung von Überzügen, Lacken oder Beschichtungen[1981/31]
English:Process for the preparation of aqueous solutions or dispersions of polyurethanes and their use for the preparation of coatings or lacquers[1981/31]
French:Procédé de préparation de solutions ou de dispersions aqueuses de polyuréthanes et leur application pour la préparation de revêtements ou de vernis[1981/31]
Former [1981/31]Verfahren zur Herstellung von wässrigen Lösungen oder Dispersionen von Polyurethanen, die nach diesem Verfahren erhältlichen Lösungen oder Dispersionen, sowie ihre Verwendung zur Herstellung von Überzügen, Lacken oder Beschichtungen
Former [1981/31]Process for the preparation of aqueous solutions or dispersions of polyurethanes, solutions or dispersions obtained by this process and their use for the preparation of coatings or lacquers
Former [1981/31]Procédé de préparation de solutions ou de dispersions aqueuses de polyuréthanes, les solutions ou dispersions obtenues par ce procédé et leur application pour la préparation de revêtements ou de vernis
Examination procedure07.03.1979Examination requested
17.12.1979Despatch of a communication from the examining division (Time limit: M03)
10.01.1980Reply to a communication from the examining division
30.01.1980Despatch of communication of intention to grant (Approval: )
30.04.1980Communication of intention to grant the patent
08.05.1980Fee for grant paid
08.05.1980Fee for publishing/printing paid
Opposition(s)04.06.1982No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
13.03.1981Renewal fee patent year 03
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Documents cited:SearchGB1064841  [ ] (ICI LTD);
 EP0000029  [ ] (BAYER AG [DE])
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.