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Extract from the Register of European Patents

EP About this file: EP3661497

EP3661497 - RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  05.07.2024
Database last updated on 05.10.2024
FormerExamination is in progress
Status updated on  15.03.2024
FormerRequest for examination was made
Status updated on  08.05.2020
FormerThe international publication has been made
Status updated on  08.02.2020
Most recent event   Tooltip05.07.2024Withdrawal of applicationpublished on 07.08.2024  [2024/32]
Applicant(s)For all designated states
COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
P.O. Box 483
Fort Collins, CO 80522 / US
For all designated states
Chen, Eugene Y.
4731 Crest Road
Fort Collins, Colorado 80526 / US
For all designated states
Zhu, Jian-Bo
500 W. Prospect Apt. 26-G
Fort Collins, Colorado 80526 / US
[2020/24]
Inventor(s)01 / CHEN, Eugene Y.
4731 Crest Road
Fort Collins, Colorado 80526 / US
02 / ZHU, Jian-Bo
500 W. Prospect Apt. 26-G
Fort Collins, Colorado 80526 / US
 [2020/24]
Representative(s)FRKelly
Waterways House
Grand Canal Quay
Dublin D02 PD39 / IE
[N/P]
Former [2020/24]FRKelly
27 Clyde Road
Dublin D04 F838 / IE
Application number, filing date18928207.202.08.2018
[2020/24]
WO2018US45013
Priority number, dateUS201762540672P03.08.2017         Original published format: US 201762540672 P
[2020/24]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020027845
Date:06.02.2020
Language:EN
[2020/06]
Type: A1 Application with search report 
No.:EP3661497
Date:10.06.2020
Language:EN
The application published by WIPO in one of the EPO official languages on 06.02.2020 takes the place of the publication of the European patent application.
[2020/24]
Search report(s)International search report - published on:US06.02.2020
(Supplementary) European search report - dispatched on:EP07.06.2021
ClassificationIPC:A61K31/365, A61K47/30, A61K47/34, C08G63/00, C08G63/78, C08G63/82, C08G69/14, C08G69/20, C08G75/26, C08G63/08, // C08J11/12, C08J11/16
[2021/27]
CPC:
C08G63/08 (EP); C08G63/82 (EP); C08G63/823 (EP);
C08G75/26 (EP)
Former IPC [2020/24]A61K31/365, A61K47/30, A61K47/34, C08G63/00, C08G63/78, C08G63/82
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 [2020/24]
TitleGerman:WIEDERVERWENDBARE POLYMERE AUF DER BASIS VON RINGKONDENSIERTEN GAMMA-BUTYROLACTONEN[2020/24]
English:RECYCLABLE POLYMERS BASED ON RING-FUSED GAMMA-BUTYROLACTONES[2020/24]
French:POLYMÈRES RECYCLABLES SUR LA BASE DE GAMMA-BUTYROLACTONES À CYCLES CONDENSÉS[2020/24]
Entry into regional phase03.03.2020National basic fee paid 
03.03.2020Search fee paid 
03.03.2020Designation fee(s) paid 
03.03.2020Examination fee paid 
Examination procedure03.03.2020Examination requested  [2020/24]
22.11.2021Amendment by applicant (claims and/or description)
14.03.2024Despatch of a communication from the examining division (Time limit: M04)
03.07.2024Application withdrawn by applicant  [2024/32]
Fees paidRenewal fee
19.08.2020Renewal fee patent year 03
29.08.2021Renewal fee patent year 04
11.08.2022Renewal fee patent year 05
28.08.2023Renewal fee patent year 06
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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[YA]WO2016164911  (UNIV COLORADO STATE RES FOUND [US]) [Y] 14 * page 7, line 30 - page 8, line 12 *[A] 1-13,15;
 [XAY]  - HABA OSAMU ET AL, "Ring-opening polymerization of a five-membered lactone trans-fused to a cyclohexane ring", POLYMER JOURNAL, JP, vol. 46, no. 2, doi:10.1038/pj.2013.70, ISSN 0032-3896, (20140201), pages 89 - 93, URL: https://www.nature.com/articles/pj201370.pdf, (20210519), XP055806019 [X] 1-12 * page 90, column left, line 1 - page 92, column right, line 34; figures 1-5; table 1; compound T6L * [A] 13,15 [Y] 14

DOI:   http://dx.doi.org/10.1038/pj.2013.70
 [XA]  - HALL H K JR, "Polymerization and ring strain in bridged bicyclic compounds", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, US, (19580101), vol. 80, doi:10.1021/JA01556A061, ISSN 0002-7863, pages 6412 - 6420, XP002255671 [X] 1-6,8,10,12 * page 6413, column left, line 24 - page 6420, column right, line 5; tables I, II; compounds VI, XI * [A] 7,9,11,13-15

DOI:   http://dx.doi.org/10.1021/ja01556a061
 [XA]  - CHO HYUN-NAM ET AL, "Polymerization of 2-azabicyclo[2,2,1]heptan-3-one and its copolymerization with 2-pyrrolidone", JOURNAL OF POLYMER SCIENCE : PART A: POLYMER CHEMISTRY, US, vol. 23, no. 3, doi:10.1002/pol.1985.170230304, ISSN 0360-6376, (19850301), pages 623 - 634, URL: http://dx.doi.org/10.1002/pol.1985.170230304, (20210526), XP055807353 [X] 1-8,13 * the whole document * [A] 9-12,14,15

DOI:   http://dx.doi.org/10.1002/pol.1985.170230304
 [A]  - BANNIN TIMOTHY J. ET AL, "Poly(thioester) by Organocatalytic Ring-Opening Polymerization", MACROMOLECULES, Washington DC United States, vol. 48, no. 16, doi:10.1021/acs.macromol.5b01463, ISSN 0024-9297, (20150825), pages 5481 - 5486, URL: https://pubs.acs.org/doi/pdf/10.1021/acs.macromol.5b01463, (20210525), XP055807242 [A] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1021/acs.macromol.5b01463
International search[A]US2007043188  (SCHAUBROECK DAVID [BE], et al) [A] 1-12, 15, 18-20 * entire document *;
 [A]US2007185343  (VERPOORT FRANCIS WALTER C [BE], et al) [A] 1-12, 15, 18-20 * entire document *;
 [A]US2009118519  (HIRATA NORIHIKO [JP], et al) [A] 1-12, 15, 18-20 * entire document *;
 [A]  - ZHU et al., "A synthetic polymer system with repeatable chemical recyclability", Science, vol. 360, (20180427), URL: http://science.sciencemag.org/content/360/6387/398/tab-pdt, (20180906), XP055681423 [A] 1-12, 15, 18-20 * entire document *

DOI:   http://dx.doi.org/10.1126/science.aar5498
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.