http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2188110-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D519-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P33-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P33-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-90 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N65-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D519-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N65-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N65-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-00 |
| filingDate | 1996-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4764bb8aaff035d55114e29485cfd39f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_992b2f92d13aa21858f4a3d0adc9ba9a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88987a1272694843ef480ff08266b60a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72390350d474748871ec1c6965e820a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff20ced06cb9dc2929e82295d7b53f61 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8e91ec35bfbdf383ca75a8c2c8d5216 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e68c343ee60d25d51caa4ee6ccc99f45 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43ee88e3961f37452b323e41a529816d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd23340198118234bf7fd6cba3a92683 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f240c2bff45a1aec126f12af0dfa95c |
| publicationDate | 1997-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2188110-A1 |
| titleOfInvention | Pesticidal dry powder formulation enriched in azadirachtin upto 88%, an emulsifiable concentrate enriched upto 30% of azadirachtin and a process for preparing such formulation andconcentrate from neem seed/kernel |
| abstract | The invention relates to a preparation of azadirachtin, in a dry solid powder form, having a purity upto 88% ; an emulsion concentrate having upto 30% by weight of azadirachtin, and a process for preparing said azadirachtin dry powder from neem seeds/kernels, which comprising: (a) disintegrating the neem seeds/kernels into a powder; (b) subjecting the said powder to continuous extraction using methanol or aqueous methanol or ethanol (rectified spirit) or aqueous ethanol at ambient temperature; (c) concentrating the extract and stirring the concentrate with petroleumether or hexane and phase separating by conventional methods; (d) stirring the denser phase containing major quantity of azadirachtin with a water immiscible organic solvent and water as required depending on the solvent used for extraction and phase separating by conventional methods; (e) concentrating the organic phase and gradually adding the concentrate to petroleumether or hexane under stirring at ambient temperature (f), filtering under suction and drying under vacuum at a temperature in the range of 25 - 65°C. to obtain a neem seed/kernel extract as a powder having azadirachtin of 10-19% purity; (g) re~dissolving the product obtained in step (f) in a solvent and adding the solution to petroleumether or hexane at ambient temperature gradually under stirring yielding a white solid, which after filtration and drying under vacuum at 65°C. resulting in azadirachtin having 15-26% purity as a white powder (h), dissolving the azadirachtin (10-19%) from step (e) in an organic solvent and subjecting to column chromatography (silicagel) by stepwise elution using different compositions of hexane/petroleumether and ethylacetate leading to solid azadirachtin powder upto 49% (i) dissolving the azadirachtin having upto 49% purity in methanol, ethanol or acetonitrile and subjecting it to HPLC (C18 column) to produce azadirachtin of purity upto 88% in a solid powder form, and (j) and stirring the product of step (i) with solvents and emulsifiers with or without synergist and UV stabiliser to obtain the emulsifiable concentrate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6333058-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6733802-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0931550-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1124818-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0930073-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107754365-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1124818-A4 |
| priorityDate | 1995-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.