http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2476455-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_969c009bfbc39d38e5251073d2732f3e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-441 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D183-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-6263 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-624 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L83-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-6224 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L83-02 |
| filingDate | 2008-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00c9b0347f382862517382279f8d2d1f |
| publicationDate | 2013-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2476455-C2 |
| titleOfInvention | Nontoxic polethoxysiloxane-based substance for making biologically resorbable and/or biologically active articles containing polyethoxysilane-based substance, production and use thereof |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to polyethoxysiloxanes and use thereof. Disclosed is a polyethoxysiloxane (PES) based substance which is obtained through (a) a first reaction for hydrolysis-condensatio of tetraethoxysilane of formula SiX 4 (I), wherein X is an ethoxy group, which is catalysed by an acid at initial pH from 0 to ≤7 in the presence of ethanol or a mixture of ethanol and water as a solvent for 1-24 hours at temperature of 0-78°C, the initial pH being established using diluted nitric acid or an acid mixture of a physiologically transferred acid and a substrate made from nitroxide synthase, (b) a second reaction of hydrolysis-condensation of the substance obtained at step (a), and simultaneous removal of the solvent by gradual evaporation in a closed, gas-impermeable container at pressure of 100-1013 mbar and temperature of 50-78°C, until sharp increase in viscosity (at shear velocity of 10 s -1 at 4°C) to 0.5-2 Pa·s, until achieving constant weight and until formation of cyclotetrasiloxane of general formula ((SiO(OH) 0.75 (OEt) 1.25 ×1/64 H 2 O) 4 and molar mass 4 x about 114 g = about 456 g, (c) cooling the PES in a closed container for a period ranging from a few minutes to a few hours and (d) converting the PES obtained at step (c) into a PES substance through a third hydrolysis-condensation reaction. Use of the obtained substance is also disclosed. n EFFECT: obtained substance is non-toxic and its sol solution is suitable for spinning. n 12 cl, 1 ex |
| priorityDate | 2007-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.