http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1858816-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95c89084d61fd47ae93470ca7c96f184 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-07 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2201-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B19-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B19-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B19-106 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-01291 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B37-012 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B19-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B19-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B19-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-012 |
| filingDate | 2006-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d7f7cbddcf2332a161e308846f9274d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34138312201234504a69c0005d54bce4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e62225806a94393ebf0a360605296d89 |
| publicationDate | 2007-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1858816-A1 |
| titleOfInvention | A method of producing glass of optical quality |
| abstract | Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas, whereby the presintering composition consists of granules of metal oxides or metalloid oxides of a pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm or a high-purity pyrogenically prepared silicon dioxide having metal contents of less than 0.2 μg/g, which is prepared by reacting a silicon tetrachloride having a metal content of less than 30 ppb by means of flame hydrolysis. |
| priorityDate | 2005-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.