Global Patent Index - EP 1487415 A2

EP 1487415 A2 2004-12-22 - METHOD FOR THE PRODUCTION AND THE USE OF MICROPARTICLES AND NANOPARTICLES BY CONSTRUCTIVE MICRONISATION

Title (en)

METHOD FOR THE PRODUCTION AND THE USE OF MICROPARTICLES AND NANOPARTICLES BY CONSTRUCTIVE MICRONISATION

Title (de)

VERFAHREN ZUR HERSTELLUNG UND ANWENDUNG VON MIKRO- UND NANOTEILCHEN DURCH AUFBAUENDE MIKRONISATION

Title (fr)

PROCEDE POUR PRODUIRE ET UTILISER DES MICROPARTICULES ET DES NANOPARTICULES PAR MICRONISATION CONSTRUCTIVE

Publication

EP 1487415 A2 (DE)

Application

EP 03724926 A

Priority

  • DE 10214031 A
  • EP 0302984 W

Abstract (en)

[origin: WO03080034A2] The invention relates to a method for producing microparticles and/or nanoparticles of a substance, wherein particles are formed from a molecularly distributed substance which is simultaneously stabilised in a suspension. The substance is dissolved in a solvent system and subsequently a non-solvent for said substance is added whereby said non-solvent can be mixed with the solvent system for said substance. One or several crystal growth inhibitors are added and a rapid merging of solvents and non-solvents takes place. The substance is precipitated by forming a dispersion of particles whose size lies within the micrometer or nanometer range.

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

A61K 9/14; A61K 9/51; B01D 9/00

IPC 8 full level (invention and additional information)

A61K 9/10 (2006.01); A61K 9/14 (2006.01); A61K 9/19 (2006.01); A61K 9/51 (2006.01); A61K 9/72 (2006.01); A61K 9/00 (2006.01); A61K 9/16 (2006.01)

CPC (invention and additional information)

A61K 9/146 (2013.01); A61K 9/0075 (2013.01); A61K 9/008 (2013.01); A61K 9/1688 (2013.01)

Citation (search report)

See references of WO 03080034A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

EPO simple patent family

WO 03080034 A2 20031002; WO 03080034 A3 20031127; AU 2003227540 A1 20031008; AU 2003227540 A8 20031008; DE 10214031 A1 20040219; EP 1487415 A2 20041222; JP 2005527536 A 20050915; US 2005139144 A1 20050630

INPADOC legal status


2008-12-17 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20080617

2008-03-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080205

2004-12-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20041019

2004-12-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

2004-12-22 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK