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Extract from the Register of European Patents

EP About this file: EP1937746

EP1937746 - NOVEL PROCESS FOR THE PREPARATION OF POLYLACTIC ACID [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  31.05.2013
Database last updated on 05.07.2024
Most recent event   Tooltip31.05.2013Application deemed to be withdrawnpublished on 03.07.2013  [2013/27]
Applicant(s)For all designated states
Tate & Lyle PLC
Sugar Quay, Lower Thames Street
London EC3R 6DQ / GB
[2008/27]
Inventor(s)01 / SODERGARD, Nils, Dan, Anders
4 Vähätalonkatu
20250 Turku / FI
02 / STOLT, Erik Mikael
4C 49 Puolalankatu
20100 Turku / FI
 [2008/27]
Representative(s)Nieuwenhuys, William Francis, et al
Marks & Clerk LLP
15 Fetter Lane
London EC4A 1BW / GB
[N/P]
Former [2012/34]Nieuwenhuys, William Francis, et al
Marks & Clerk LLP 90 Long Acre London
WC2E 9RA / GB
Former [2008/27]Smyth, Gyles Darren
Marks & Clerk 90 Long Acre
London WC2E 9RA / GB
Application number, filing date05787423.228.09.2005
[2008/27]
WO2005NL00699
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2007037673
Date:05.04.2007
Language:EN
[2007/14]
Type: A1 Application with search report 
No.:EP1937746
Date:02.07.2008
Language:EN
The application published by WIPO in one of the EPO official languages on 05.04.2007 takes the place of the publication of the European patent application.
[2008/27]
Search report(s)International search report - published on:EP05.04.2007
ClassificationIPC:C08G63/06, C08G63/08
[2008/27]
CPC:
C08G63/06 (EP,US); C08G63/08 (EP,US)
Designated contracting statesAT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   NL,   PL,   PT,   RO,   SE,   SI,   SK,   TR [2008/27]
TitleGerman:NEUES VERFAHREN ZUR HERSTELLUNG VON POLYMILCHSÄURE[2008/27]
English:NOVEL PROCESS FOR THE PREPARATION OF POLYLACTIC ACID[2008/27]
French:NOUVEAU PROCÉDÉ DE PRÉPARATION DE POLY(ACIDE LACTIQUE)[2008/27]
Entry into regional phase20.03.2008National basic fee paid 
20.03.2008Designation fee(s) paid 
20.03.2008Examination fee paid 
Examination procedure21.03.2008Examination requested  [2008/27]
18.07.2008Despatch of a communication from the examining division (Time limit: M06)
23.01.2009Reply to a communication from the examining division
27.06.2012Despatch of a communication from the examining division (Time limit: M06)
08.01.2013Application deemed to be withdrawn, date of legal effect  [2013/27]
14.02.2013Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2013/27]
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  18.07.2008
Fees paidRenewal fee
26.09.2007Renewal fee patent year 03
15.09.2008Renewal fee patent year 04
25.09.2009Renewal fee patent year 05
27.09.2010Renewal fee patent year 06
26.09.2011Renewal fee patent year 07
25.09.2012Renewal fee patent year 08
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Cited inInternational search[X]JP2005154718  ;
 [A]GB2277324  (BASF AG [DE]) [A] 1 * claim 1 * * example 7 *;
 [X]  - PACK JI WON ET AL, "Kinetic and Mechanistic Studies of L-Lactide Polymerization in Supercritical Chlorodifluoromethane", MACROMOLECULES; MACROMOLECULES DEC 2 2003, (20031202), vol. 36, no. 24, pages 8923 - 8930, XP002353287 [X] 1 * abstract *

DOI:   http://dx.doi.org/10.1021/ma034910n
 [X]  - PATENT ABSTRACTS OF JAPAN, (20031205), vol. 2003, no. 12, & JP2005154718 A 20050616 (UNITIKA LTD) [X] 1,2 * abstract *
 [A]  - HILTUNEN KARL ET AL, "Synthesis of lactic-acid-based telechelic prepolymers", J APPL POLYM SCI; JOURNAL OF APPLIED POLYMER SCIENCE FEB 7 1998 JOHN WILEY & SONS INC, NEW YORK, NY, USA, (19980207), vol. 67, no. 6, pages 1011 - 1016, XP002353563 [A] 1 * abstract * * experimental *

DOI:   http://dx.doi.org/10.1002/(SICI)1097-4628(19980207)67:6<1011::AID-APP7>3.0.CO;2-L
 [A]  - HILTUNEN K ET AL, "Use of different diols in the synthesis of low-molecular-weight lactic-acid-based telechelic prepolymers", J APPL POLYM SCI; JOURNAL OF APPLIED POLYMER SCIENCE FEB 7 1998 JOHN WILEY & SONS INC, NEW YORK, NY, USA, (19980207), vol. 67, no. 6, pages 1017 - 1023, XP002353289 [A] * abstract * * experimental * * figure 1; table 1 *

DOI:   http://dx.doi.org/10.1002/(SICI)1097-4628(19980207)67:6<1017::AID-APP8>3.0.CO;2-L
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.