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Extract from the Register of European Patents

EP About this file: EP3536735

EP3536735 - CROSSLINKED POLYETHER SILOXANE BLOCK COPOLYMERS AND THEIR USE IN THE PREPARATION OF POLYURETHANE FOAMS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.08.2021
Database last updated on 14.03.2026
FormerThe patent has been granted
Status updated on  11.09.2020
FormerGrant of patent is intended
Status updated on  23.06.2020
FormerRequest for examination was made
Status updated on  28.02.2020
FormerThe application has been published
Status updated on  09.08.2019
Most recent event   Tooltip19.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 21.01.2026  [2026/04]
Applicant(s)For all designated states
Evonik Operations GmbH
Rellinghauser Straße 1-11
45128 Essen / DE
[2019/50]
Former [2019/37]For all designated states
Evonik Degussa GmbH
Rellinghauser Straße 1-11
45128 Essen / DE
Inventor(s)01 / KLOSTERMANN, Michael
Winkelskämphen 1
45141 Essen / DE
02 / FERENZ, Michael
Hohe Warte 40
45147 Essen / DE
03 / FELDMANN, Kai-Oliver
Bredeneyer Str. 17a
45133 Essen / DE
04 / JANSEN, Marvin
Hohe Haar 38
45277 Essen / DE
05 / FLUDER, Michelle
Saturnstraße 10
44388 Dortmund / DE
06 / ARNOLD, Sina
Böttcherstraße 22
46244 Bottrop / DE
07 / SCHNELL, Petra
Hellweg 15
45276 Essen / DE
 [2019/37]
Representative(s)Evonik Patent Association
C/o Evonik Industries AG
IP Management
Bau 1042A/PB 15
Paul-Baumann-Straße 1
45772 Marl / DE
[N/P]
Former [2019/37]Evonik Patent Association
c/o Evonik Industries AG
IP Management
Bau 1042A/PB 15
Paul-Baumann-Straße 1
45772 Marl / DE
Application number, filing date18159849.105.03.2018
[2019/37]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP3536735
Date:11.09.2019
Language:DE
[2019/37]
Type: B1 Patent specification 
No.:EP3536735
Date:14.10.2020
Language:DE
[2020/42]
Search report(s)(Supplementary) European search report - dispatched on:EP06.09.2018
ClassificationIPC:C08G77/46, C08L83/12
[2019/37]
CPC:
C08G77/46 (EP,KR,US); B01J23/42 (US); C08G77/08 (KR);
C08J9/00 (KR); C08L75/04 (US); C08L83/12 (EP,KR,US);
C08G2110/0066 (US); C08J2383/12 (KR); C08L2203/14 (US);
C08L2312/08 (US) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2020/14]
Former [2019/37]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:VERNETZTE POLYETHER-SILOXAN BLOCK-COPOLYMERE SOWIE DEREN VERWENDUNG ZUR HERSTELLUNG VON POLYURETHANSCHAUMSTOFFEN[2019/37]
English:CROSSLINKED POLYETHER SILOXANE BLOCK COPOLYMERS AND THEIR USE IN THE PREPARATION OF POLYURETHANE FOAMS[2019/37]
French:COPOLYMÈRES BLOC DE POLYÉTHER-SILOXANE RÉTICULÉS AINSI QUE LEUR UTILISATION POUR LA FABRICATION DE MOUSSES EN POLYURÉTHANE[2019/37]
Examination procedure26.02.2020Amendment by applicant (claims and/or description)
26.02.2020Examination requested  [2020/14]
26.02.2020Date on which the examining division has become responsible
24.06.2020Communication of intention to grant the patent
02.09.2020Fee for grant paid
02.09.2020Fee for publishing/printing paid
02.09.2020Receipt of the translation of the claim(s)
Opposition(s)15.07.2021No opposition filed within time limit [2021/38]
Fees paidRenewal fee
24.03.2020Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipHU05.03.2018
AL14.10.2020
CY14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
MK14.10.2020
MT14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
TR14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
[2026/04]
Former [2024/42]HU05.03.2018
AL14.10.2020
CY14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
MK14.10.2020
MT14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2024/23]HU05.03.2018
AL14.10.2020
CY14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
MK14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2023/33]HU05.03.2018
AL14.10.2020
CY14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2023/30]AL14.10.2020
CY14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2022/23]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2022/10]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
CH31.03.2021
LI31.03.2021
Former [2022/09]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
LU05.03.2021
Former [2022/07]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
IE05.03.2021
Former [2021/50]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SI14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/45]AL14.10.2020
CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
MC14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/37]CZ14.10.2020
DK14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/36]CZ14.10.2020
EE14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/35]CZ14.10.2020
FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
PL14.10.2020
RO14.10.2020
RS14.10.2020
SE14.10.2020
SK14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/33]FI14.10.2020
HR14.10.2020
LT14.10.2020
LV14.10.2020
PL14.10.2020
RS14.10.2020
SE14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/32]FI14.10.2020
HR14.10.2020
LV14.10.2020
PL14.10.2020
RS14.10.2020
SE14.10.2020
SM14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/28]FI14.10.2020
HR14.10.2020
LV14.10.2020
PL14.10.2020
RS14.10.2020
SE14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/25]FI14.10.2020
LV14.10.2020
PL14.10.2020
RS14.10.2020
SE14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
IS14.02.2021
PT15.02.2021
Former [2021/23]FI14.10.2020
LV14.10.2020
RS14.10.2020
SE14.10.2020
BG14.01.2021
NO14.01.2021
GR15.01.2021
PT15.02.2021
Former [2021/22]FI14.10.2020
RS14.10.2020
NO14.01.2021
PT15.02.2021
Former [2021/21]FI14.10.2020
PT15.02.2021
Former [2021/20]FI14.10.2020
Documents cited:Search[XA] DE69923992  (SCHERING OY et al.)
by applicantUS3836560
 US4002941
 US4150048
 US5869727
   LEWIS ET AL.: "Platinum Catalysts used in Silicones Industry", PLATINUM METAL REVIEW, vol. 44, no. 23, 1997, pages 66 - 74
   ADAM ET AL.: "Ullmann's Encyclopedia of Industrial Chemistry", 2012, WILEY VCH-VERLAG, article "Polyurethanes"
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.