PURIFICATION METHOD OF HYDROXYPROPYLMETHYL CELLULOSE PHTHALATE

Details for Australian Patent Application No. 2002243093 (hide)

Owner SAMSUNG FINE CHEMICALS CO., LTD.

Inventors CHO, Kyu-Il; BAEK, Hyon-Ho

Pub. Number AU-A-2002243093

PCT Pub. Number WO2002/085949

Priority 2001/21076 19.04.01 KR

Filing date 2 April 2002

Wipo publication date 5 November 2002

International Classifications

C08B 013/00 Preparation of cellulose ether-esters

C08B 003/22 Preparation of cellulose esters of organic acids

C08B 011/20 Preparation of cellulose ethers

A61K 047/38 Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives - Cellulose

Event Publications

17 April 2003 Application Open to Public Inspection

  Published as AU-A-2002243093

19 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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