Extract from the Register of European Patents

EP About this file: EP4480973

EP4480973 - CATALYST COMPOSITION PREPARATION METHOD AND CONJUGATED DIENE-BASED POLYMER PREPARATION METHOD [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  22.11.2024
Database last updated on 19.03.2026
FormerThe international publication has been made
Status updated on  25.08.2023
Most recent event   Tooltip24.02.2026New entry: Renewal fee paid 
Applicant(s)For all designated states
LG Chem, Ltd.
128 Yeoui-daero
Yeongdeungpo-gu
Seoul 07336 / KR
[2024/52]
Inventor(s)01 / KANG, Suk Youn
Daejeon 34122 / KR
02 / LEE, Tae Chul
Daejeon 34122 / KR
03 / SOHN, Hae Sung
Daejeon 34122 / KR
04 / KIM, Dong Hui
Daejeon 34122 / KR
05 / PARK, Sung Ho
Daejeon 34122 / KR
06 / BAE, Ju Ryang
Daejeon 34122 / KR
07 / CHOI, Seo Won
Daejeon 34122 / KR
 [2024/52]
Representative(s)Goddar, Heinz J.
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[2024/52]
Application number, filing date23756622.915.02.2023
[2024/52]
WO2023KR02200
Priority number, dateKR2022002107617.02.2022         Original published format: KR 20220021076
[2024/52]
Filing languageKO
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023158210
Date:24.08.2023
Language:KO
[2023/34]
Type: A1 Application with search report 
No.:EP4480973
Date:25.12.2024
Language:EN
[2024/52]
Search report(s)International search report - published on:KR24.08.2023
(Supplementary) European search report - dispatched on:EP26.05.2025
ClassificationIPC:C08F36/04, C08F4/54, C08F2/38, C08F136/06, C08F4/659
[2025/26]
CPC:
C08F136/06 (EP,US); C08F36/04 (KR); C08F4/545 (KR,US);
C08F2/38 (KR,US); C08F2410/01 (EP)
C-Set:
C08F136/06, C08F4/545 (EP);
C08F136/06, C08F4/6491 (EP);
C08L9/00, C08L91/00, C08L45/00, C08K3/04, C08K3/22, C08K5/09, C08K3/06, C08K5/47, C08K5/31 (EP)
Former IPC [2024/52]C08F36/04, C08F4/54, C08F2/38
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,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/52]
TitleGerman:VERFAHREN ZUR HERSTELLUNG EINER KATALYSATORZUSAMMENSETZUNG UND VERFAHREN ZUR HERSTELLUNG EINES KONJUGIERTEN DIENPOLYMERS[2024/52]
English:CATALYST COMPOSITION PREPARATION METHOD AND CONJUGATED DIENE-BASED POLYMER PREPARATION METHOD[2024/52]
French:PROCÉDÉ DE PRÉPARATION DE COMPOSITION DE CATALYSEUR ET PROCÉDÉ DE PRÉPARATION DE POLYMÈRE À BASE DE DIÈNE CONJUGUÉ[2024/52]
Entry into regional phase24.07.2024Translation filed 
24.07.2024National basic fee paid 
24.07.2024Search fee paid 
24.07.2024Designation fee(s) paid 
24.07.2024Examination fee paid 
Examination procedure24.07.2024Examination requested  [2024/52]
08.12.2025Amendment by applicant (claims and/or description)
08.12.2025Date on which the examining division has become responsible
Fees paidRenewal fee
21.02.2025Renewal fee patent year 03
23.02.2026Renewal fee patent year 04
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Documents cited:Search  No further relevant documents disclosed
International search[YD] JP2006274219  (NIPPON ZEON CO et al.) [YD] 1-14 * See claims 1-10; and paragraphs [0017]-[0019], [0027], [0033]-[0036], [0067], [0077] and [0078]. *
 [Y] RU2203289  (VORONEZHSINTEZK AOOT et al.)
 [DY] KR20080064977  (MICHELIN SOC TECH et al.) [DY] 1-14 * See claims 1, 26-28 and 33; paragraphs [0175]-[0181] and [0229]-[0236]; and figures 3 and 4. *
 [Y] RU2345092  (FEDERAL NOE GUP I NII SINT KAU et al.)
 [A] CN103665217  (CHINA PETROLEUM & CHEMICAL et al.) [A] 1-14 * See claims 1-11; paragraphs [0045] and [0046]; and figure 1. *
 [A] KR20010100205  (KOREA KUMHO PETROCHEM CO LTD et al.) [A] 1-14 * See claims 1-9. *
 [A]   ATIQULLAH M., TINKL M., PFAENDNER R., AKHTAR M. N., HUSSAIN I.: "Synthesis of Functional Polyolefins using Metallocenes: A Comprehensive Review", POLYMER REVIEWS, TAYLOR & FRANCIS INC., US, vol. 50, no. 2, 22 April 2010 (2010-04-22), US , pages 178 - 230, XP093085137, ISSN: 1558-3724, DOI: 10.1080/15583721003704289 [A] 1-14 * See pages 209-212. *

DOI:   http://dx.doi.org/10.1080/15583721003704289
by applicantUS9056303
 JP5072191
   "A Highly Reactive and Monomeric Neodymium Catalyst", MACROMOLECULES, vol. 35, no. 13, 2002, pages 4875 - 4879, Retrieved from the Internet
   "Living and non-living Ziegler-Natta catalysts: electronic properties of active site", POLYMER, vol. 44, 21 October 2003 (2003-10-21), pages 6555 - 6558, Retrieved from the Internet
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