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Extract from the Register of European Patents

EP About this file: EP3406646

EP3406646 - PRODUCTION PROCESS FOR A POLYESTER RESIN [Right-click to bookmark this link]
Former [2018/48]POLYESTER RESIN AND PREPARATION METHOD THEREFOR
[2021/38]
StatusPatent maintained as amended
Status updated on  22.11.2024
Database last updated on 18.03.2026
FormerThe patent has been granted
Status updated on  08.10.2021
FormerGrant of patent is intended
Status updated on  07.09.2021
FormerExamination is in progress
Status updated on  12.06.2020
FormerRequest for examination was made
Status updated on  26.10.2018
FormerThe international publication has been made
Status updated on  23.03.2018
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
Zhuhai Wango Chemical Co., Ltd.
Room 320, Oceania Hotel
Nanshui Water Bridge
Nanshui Town
Jinwan District
Zhuhai, Guangdong 519050 / CN
For all designated states
Kingfa Sci. & Tech. Co., Ltd.
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou, Guangdong 510663 / CN
For all designated states
Shanghai Kingfa Sci.&Tech.Co., Ltd.
No.88 Kangyuan Road
Zhujiajiao Industrial Park
Qingpu
Shanghai 201714 / CN
[2024/52]
Former [2018/48]For all designated states
Zhuhai Wango Chemical Co., Ltd.
Room 320, Oceania Hotel
Nanshui Water Bridge
Nanshui Town
Jinwan District
Zhuhai, Guangdong 519050 / CN
For all designated states
Kingfa Sci. & Tech. Co., Ltd.
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou, Guangdong 510663 / CN
For all designated states
Shanghai Kingfa Sci.&Tech.Co., Ltd.
No.88 Kangyuan Road
Zhujiajiao Industrial Park
Qingpu
Shanghai 201714 / CN
Inventor(s)01 / WANG, Weiwei
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
02 / YUAN, Zhimin
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
03 / CAI, Tongmin
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
04 / HUANG, Xianbo
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
05 / ZENG, Xiangbin
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
06 / RUAN, Renxu
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
07 / GUO, Zhilong
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
08 / TANG, Meijun
No.33 Kefeng Road
Science City
Guangzhou Hi-tech Industrial Development Zone
Guangzhou Guangdong 510663 / CN
 [2018/48]
Representative(s)dompatent
Partnerschaft von
Patentanwälten und Rechtsanwälten mbB
Deichmannhaus am Dom
Bahnhofsvorplatz 1
50667 Köln / DE
[N/P]
Former [2024/52]dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
Deichmannhaus am Dom
Bahnhofsvorplatz 1
50667 Köln / DE
Former [2021/45]Canzler & Bergmeier Patentanwälte Partnerschaft mbB
Friedrich-Ebert-Straße 84
85055 Ingolstadt / DE
Former [2018/48]Bergmeier, Werner
Canzler & Bergmeier
Patentanwälte Partnerschaft mbB
Friedrich-Ebert-Straße 84
85055 Ingolstadt / DE
Application number, filing date17848103.204.09.2017
[2018/48]
WO2017CN100369
Priority number, dateCN20161081386709.09.2016         Original published format: CN201610813867
[2018/48]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2018045930
Date:15.03.2018
Language:ZH
[2018/11]
Type: A1 Application with search report 
No.:EP3406646
Date:28.11.2018
Language:EN
[2018/48]
Type: B1 Patent specification 
No.:EP3406646
Date:10.11.2021
Language:EN
[2021/45]
Type: B2 New European patent specification 
No.:EP3406646
Date:25.12.2024
Language:EN
[2024/52]
Search report(s)International search report - published on:CN15.03.2018
(Supplementary) European search report - dispatched on:EP25.07.2019
ClassificationIPC:C08G63/183, C08G63/58, C08G63/52, C08G63/85, C08G63/181, C08G63/78
[2019/35]
CPC:
C08G63/85 (EP,CN); C08G63/183 (CN); C08G63/181 (EP);
C08G63/52 (EP,CN); C08G63/58 (CN); C08G63/78 (EP)
Former IPC [2018/48]C08G63/183, C08G63/58, C08G63/52, C08G63/85
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 [2018/48]
TitleGerman:VERFAHREN ZUR HERSTELLUNG EINES POLYESTERHARZES[2024/37]
English:PRODUCTION PROCESS FOR A POLYESTER RESIN[2024/37]
French:PROCÉDÉ DE PRÉPARATION D'UNE RÉSINE POLYESTER[2024/37]
Former [2018/48]POLYESTERHARZ UND HERSTELLUNGSVERFAHREN DAFÜR
Former [2018/48]POLYESTER RESIN AND PREPARATION METHOD THEREFOR
Former [2018/48]RÉSINE DE POLYESTER ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ
Entry into regional phase23.08.2018Translation filed 
23.08.2018National basic fee paid 
23.08.2018Search fee paid 
23.08.2018Designation fee(s) paid 
23.08.2018Examination fee paid 
Examination proceduredeletedDate on which the examining division has become responsible
23.08.2018Examination requested  [2018/48]
25.11.2019Amendment by applicant (claims and/or description)
16.06.2020Despatch of a communication from the examining division (Time limit: M04)
21.07.2020Reply to a communication from the examining division
08.09.2021Communication of intention to grant the patent
30.09.2021Fee for grant paid
30.09.2021Fee for publishing/printing paid
30.09.2021Receipt of the translation of the claim(s)
Opposition(s)Opponent(s)01  09.08.2022  21.02.2024  WITHDRAWN
BASF SE
Carl-Bosch-Strasse 38
67056 Ludwigshafen / DE
Opponent's representative
Meissner Bolte Partnerschaft mbB
Patentanwälte Rechtsanwälte
Postfach 86 06 24
81633 München / DE
 02  10.08.2022  15.08.2022  ADMISSIBLE
Novamont S.p.A.
Via G. Fauser 8
28100 Novara / IT
Opponent's representative
Maiwald GmbH
Elisenhof
Elisenstraße 3
80335 München / DE
 [N/P]
Former [2024/16]
Opponent(s)01  09.08.2022  21.02.2024  WITHDRAWN
BASF SE
Carl-Bosch-Strasse 38
67056 Ludwigshafen / DE
Opponent's representative
Meissner Bolte Partnerschaft mbB
Widenmayerstraße 47
80538 München / DE
 02  10.08.2022  15.08.2022  ADMISSIBLE
Novamont S.p.A.
Via G. Fauser 8
28100 Novara / IT
Opponent's representative
Maiwald GmbH
Elisenhof
Elisenstraße 3
80335 München / DE
Former [2024/14]
Opponent(s)01  09.08.2022  21.02.2024  WITHDRAWN
BASF SE
Carl-Bosch-Strasse 38
67056 Ludwigshafen / DE
Opponent's representative
Reitstötter Kinzebach
Patentanwälte
Sternwartstraße 4
81679 München / DE
 02  10.08.2022  15.08.2022  ADMISSIBLE
Novamont S.p.A.
Via G. Fauser 8
28100 Novara / IT
Opponent's representative
Maiwald GmbH
Elisenhof
Elisenstraße 3
80335 München / DE
Former [2022/38]
Opponent(s)01  09.08.2022  11.08.2022  ADMISSIBLE
BASF SE
Carl-Bosch-Strasse 38
67056 Ludwigshafen / DE
Opponent's representative
Reitstötter Kinzebach
Patentanwälte
Sternwartstrasse 4
81679 München / DE
 02  10.08.2022  15.08.2022  ADMISSIBLE
Novamont S.p.A.
Via G. Fauser 8
28100 Novara / IT
Opponent's representative
Maiwald Patent- und Rechtsanwaltsgesellschaft mbH
Elisenhof
Elisenstraße 3
80335 München / DE
Former [2022/37]
Opponent(s)01  09.08.2022  11.08.2022  ADMISSIBLE
BASF SE
Carl-Bosch-Strasse 38
67056 Ludwigshafen / DE
Opponent's representative
Reitstötter Kinzebach
Patentanwälte
Sternwartstrasse 4
81679 München / DE
 02  10.08.2022   
Novamont S.p.A.
Via G. Fauser 8
28100 Novara / IT
Opponent's representative
Maiwald Patent- und Rechtsanwaltsgesellschaft mbH
Elisenhof
Elisenstraße 3
80335 München / DE
25.08.2022Invitation to proprietor to file observations on the notice of opposition
04.01.2023Reply of patent proprietor to notice(s) of opposition
20.03.2024Date of oral proceedings
10.04.2024Despatch of interlocutory decision in opposition
10.04.2024Despatch of minutes of oral proceedings
29.07.2024Legal effect of interlocutory decision in opposition
16.08.2024Despatch of communication that the patent will be maintained as amended
Appeal following opposition07.06.2024Appeal received No.  T0794/24
07.06.2024Payment of appeal fee
29.07.2024Result of appeal procedure: appeal of the opponent withdrawn
Fees paidRenewal fee
16.09.2019Renewal fee patent year 03
09.07.2020Renewal fee patent year 04
24.09.2021Renewal fee patent year 05
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competence of the Unified
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  TooltipHU04.09.2017
AL10.11.2021
AT10.11.2021
CY10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
MK10.11.2021
MT10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
TR10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
[2026/04]
Former [2024/42]HU04.09.2017
AL10.11.2021
AT10.11.2021
CY10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
MK10.11.2021
MT10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
Former [2024/27]HU04.09.2017
AL10.11.2021
AT10.11.2021
CY10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
MK10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
Former [2024/21]HU04.09.2017
AL10.11.2021
AT10.11.2021
CY10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
Former [2024/18]HU04.09.2017
AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
Former [2023/33]AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
MC10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
IE04.09.2022
LU04.09.2022
Former [2023/30]AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
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LT10.11.2021
LV10.11.2021
MC10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
LU04.09.2022
Former [2023/22]AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
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MC10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
Former [2023/01]AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
LV10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SI10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
Former [2022/49]AL10.11.2021
AT10.11.2021
CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
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LT10.11.2021
LV10.11.2021
NL10.11.2021
PL10.11.2021
RO10.11.2021
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SE10.11.2021
SK10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
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CZ10.11.2021
DK10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
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PL10.11.2021
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SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
Former [2022/34]AT10.11.2021
EE10.11.2021
FI10.11.2021
HR10.11.2021
LT10.11.2021
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PL10.11.2021
RO10.11.2021
RS10.11.2021
SE10.11.2021
SM10.11.2021
BG10.02.2022
NO10.02.2022
GR11.02.2022
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PT10.03.2022
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NL10.11.2021
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RS10.11.2021
SE10.11.2021
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NO10.02.2022
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PT10.03.2022
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SE10.11.2021
BG10.02.2022
GR11.02.2022
IS10.03.2022
PT10.03.2022
Former [2022/23]AT10.11.2021
FI10.11.2021
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LV10.11.2021
PL10.11.2021
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Documents cited:Search[A] EP2881415  (SAMSUNG FINE CHEMICALS CO LTD et al.)
OppositionEP3511358
 WO2006097353
 CN105237750
 WO2009135921
 WO2009127556
 EP2881415
 EP0683191
 WO2015169659
 WO2010034710
 WO2006097353
 EP2881415
 DE102015205191
 EP3126446
 WO2011147806
 WO2009135921
 EP0950678
   LI GAOBIN; SHANKAR SHIV; RHIM JONG-WHAN; OH BONG-YUN: "Effects of preparation method on properties of poly(butylene adipate-co-terephthalate) films", FOOD SCIENCE AND BIOTECHNOLOGY, THE KOREA SOC. OF FOOD SCIENCE AND TECHNOLOGY, HEIDELBERG, vol. 24, no. 5, 31 October 2015 (2015-10-31), Heidelberg , pages 1679 - 1685, XP035550668, ISSN: 1226-7708, DOI: 10.1007/s10068-015-0218-5

DOI:   http://dx.doi.org/10.1007/s10068-015-0218-5
   CHEN XIRONG, CHEN WEI, ZHU GUIXIANG, HUANG FENGXING, ZHANG JINGCHANG: "Synthesis,1H-NMR characterization, and biodegradation behavior of aliphaticaromatic random copolyester", JOURNAL OF APPLIED POLYMER SCIENCE, JOHN WILEY & SONS, INC., US, vol. 104, no. 4, 27 February 2007 (2007-02-27), US , pages 2643 - 2649, XP055953851, ISSN: 0021-8995, DOI: 10.1002/app.25611

DOI:   http://dx.doi.org/10.1002/app.25611
   WITT UWE ; MUELLER ROLF-JOACHIM ; DECKWER WOLF-DIETER: "Biodegradation behavior and material properties of aliphatic/aromatic polyesters of commercial importance", JOURNAL OF ENVIRONMENTAL POLYMER DEGRADATION., SPRINGER US, BOSTON, vol. 5, no. 2, 1 April 1997 (1997-04-01), Boston, pages 81 - 89, XP009089855, ISSN: 1064-7546
   DUAN Z.; THOMAS N. L.: "Water vapour permeability of poly(lactic acid): Crystallinity and the tortuous path model", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747, vol. 115, no. 6, 14 February 2014 (2014-02-14), 2 Huntington Quadrangle, Melville, NY 11747, XP012181872, ISSN: 0021-8979, DOI: 10.1063/1.4865168

DOI:   http://dx.doi.org/10.1063/1.4865168
   HERRERA RICARD, FRANCO LOURDES, RODRGUEZ-GALN ALFONSO, PUIGGAL JORDI: "Characterization and degradation behavior of poly(butylene adipate- co -terephthalate)s : Poly(butylene adipate- co -terephthalate)s", JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY, JOHN WILEY & SONS, INC., US, vol. 40, no. 23, 1 December 2002 (2002-12-01), US , pages 4141 - 4157, XP055953856, ISSN: 0887-624X, DOI: 10.1002/pola.10501

DOI:   http://dx.doi.org/10.1002/pola.10501
   RANDAL SHOGREN: "Water vapor permeability of biodegradable polymers", JOURNAL OF ENVIRONMENTAL POLYMER DEGRADATION., SPRINGER US, BOSTON, vol. 5, no. 2, 1 April 1997 (1997-04-01), Boston, pages 91 - 95, XP055301205, ISSN: 1064-7546, DOI: 10.1007/BF02763592

DOI:   http://dx.doi.org/10.1007/BF02763592
   ZIMMERMAN HEINZ, KIM NGUYEN THAC: "Investigations on Thermal and Hydrolytic Degradation of Poly(Ethylene Terephthalate)", POLYMER ENGINEERING AND SCIENCE, vol. 20, no. 10, 1 January 1980 (1980-01-01), pages 680 - 683, XP055858285
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