Global Patent Index - EP 1068257 A1

EP 1068257 A1 2001-01-17 - PRODUCTION OF MICROPARTICLES

Title (en)

PRODUCTION OF MICROPARTICLES

Title (de)

HERSTELLUNG VON MIKROPARTIKELN

Title (fr)

PRODUCTION DE MICROPARTICULES

Publication

EP 1068257 A1 (EN)

Application

EP 99907729 A

Priority

  • GB 9900685 W
  • GB 9805417 A

Abstract (en)

[origin: WO9947588A1] A method of forming microparticles (especially including a pharmaceutically active agent) comprises incorporating an emulsifier in an aqueous liquid or in a non-aqueous solution (e.g. of dichloromethane) containing a polymer; forming a dispersion of the aqueous liquid in the non-aqueous solution; and agitating and adding a non-solvent (e.g. silicone oil) for the polymer. The presence of the emulsifier allows microparticle production over a wide range of conditions.

IPC 1-7 (main, further and additional classification)

C08J 3/14; A61K 9/51; C08J 3/09

IPC 8 full level (invention and additional information)

A61K 9/51 (2006.01); A61K 9/16 (2006.01); A61K 38/00 (2006.01); A61K 47/34 (2006.01); C08J 3/09 (2006.01); C08J 3/14 (2006.01)

CPC (invention and additional information)

A61K 9/1647 (2013.01); A61K 9/1694 (2013.01); C08J 3/09 (2013.01); C08J 3/14 (2013.01)

Citation (search report)

See references of WO 9947588A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9947588 A1 19990923; AU 2736499 A 19991011; BR 9908755 A 20001128; CA 2324235 A1 19990923; EP 1068257 A1 20010117; GB 9805417 D0 19980506; JP 2002506901 A 20020305

INPADOC legal status


2004-03-03 [18R] REFUSED

- Effective date: 20031009

2002-04-03 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020213

2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001005

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE