Method for the preparation of lactic acid oligomer

Details for Australian Patent Application No. 2002238940 (hide)

Owner AMATO PHARMACEUTICAL PRODUCTS,LTD.

Inventors Watanabe, Mikio; Murakami, Masahiro

Agent Collison & Co of **** Street Adelaide SA 5000 Australia

Pub. Number AU-A-2002238940

PCT Pub. Number WO2002/074835

Priority 2001-78215 19.03.01 JP

Filing date 18 March 2002

Wipo publication date 3 October 2002

International Classifications

C08G 063/78 Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

C07C 067/00 Preparation of carboxylic acid esters

C07C 069/68 Esters of carboxylic acids

C07D 323/00 Heterocyclic compounds containing more than two oxygen atoms as the only ring hetero atoms

C08G 063/08 Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

C08L 067/04 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain

Event Publications

27 March 2003 Application Open to Public Inspection

  Published as AU-A-2002238940

13 November 2003 Amendment Made

  The nature of the amendment is: Amend the invention title to read Method for the preparation of lactic acid oligomer

7 April 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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