http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NZ-532759-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb66d9373d09efad73c142762f6dfb00 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y5-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-1623 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-1694 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61J3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61J3-06 |
| filingDate | 2002-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69b76d5d1f57ec3681d8c7a42f9d7e8b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe16421a4cf07cc63a89db6fd47b80d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d43312158689efd79252376dbbccc12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_713187d1e0c1fbdea95038f7130b824c |
| publicationDate | 2005-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | NZ-532759-A |
| titleOfInvention | Powder processing with pressurized gaseous fluids |
| abstract | Disclosed is a method of particle precipitation, retention and dispersion of a solid or semi-solid material onto or into a carrier material. In this method, solute particles are precipitated from a pressurised gaseous fluid solution or a liquid solution and effectively retained and dispersed within a carrier material. The method for particle retention and dispersion comprises the steps of: (a)(1) dissolving a solid or semi-solid material in a pressurised gaseous fluid, thereby forming a solution comprising a gaseous fluid solvent and a dissolved solute of solid or semi-solid material or (a)(2) dissolving a solid or semi-solid material in a liquid solvent, thereby forming a liquid solution comprising a liquid solvent and a dissolved solute of solid or semi-solid material; (b)(1) precipitating particles of the solid or semi-solid material out of the gaseous fluid solution produced in step (a)(1) by introducing the solution into a region of lower pressure or into a region containing an inert gas or (b)(2) precipitating particles of the solid or semi-solid material out of the liquid solution produced in step (a)(2) by introducing the solution into either: (1) a region containing a pressurised gaseous fluid in which said liquid solvent is substantially soluble but said solid or semi-solid material is substantially insoluble, or (2) a region into which said pressurised gaseous fluid is subsequently introduced to cause the solubilisation of the liquid solvent into the pressurised gaseous fluid and the precipitation of the particles of the solid or semi-solid material; (c) directing the introduced solution and resulting precipitated particles produced in step (b)(1) or (b)(2) onto or into a mixed bed of carrier material; and (d) retaining and dispersing at least some of the precipitated particles in the carrier material to produce a blend of the solid or semi-solid material particles and carrier material, a granulation of the solid or semi-solid material particles with carrier material, carrier material partially or fully coated with the solid or semi-solid material particles, or mixtures thereof; and wherein the carrier material in the mixed bed is maintained in a mixed state at least during steps (c) and (d). This technique can be advantageously used in pharmaceutical and chemical processing to produce a blend of the solid or semi-solid material particles and carrier material, a granulation of the solid or semi-solid material particles with carrier material, carrier material partially or fully coated with the solid or semi-solid material particles, or mixtures thereof. |
| priorityDate | 2001-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 158.