http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2311781-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee1c19da359446fb5c4f0458a57b783d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2207-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2207-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P40-57 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B2207-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03B19-1423 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B19-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03B37-014 |
| filingDate | 2010-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85b8224704029d7cfae0468f5eea015b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e09447cbaef3b12c2cb5ebe498c0987e |
| publicationDate | 2011-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2311781-A1 |
| titleOfInvention | Method for producing quartz glass preform |
| abstract | The present invention relates to a method for producing a porous quartz glass body (400), including feeding a silicon raw material to a central nozzle (1) of a multitubular burner (100) having a plurality of gas feeding nozzles arranged concentrically pattern, hydrolyzing the silicon raw material in a flame (200) projected from the multitubular burner (100) to form silica fine particles in a reactor, and depositing and growing the formed silica fine particles on a rotating target (300), in which the multitubular burner (100) includes a combustible gas feeding nozzle and a combustion supporting gas feeding nozzle, in which an angle between a central axis of the multitubular burner or a line obtained by projecting the central axis of the multitubular burner onto a plane that includes a rotation axis of the target and is parallel to the central axis of the multitubular burner, and the rotation axis of the target is less than 10°, in which a distance between an end face of the central nozzle of the multitubular burner and an intersection point of a central axis of the multitubular burner with a surface of the target or a surface of the porous quartz glass body deposited on the target is from 3d to 6d mm, in which d is a diameter of an outermost periphery of the multitubular burner, and in which an amount of a gas fed to the central nozzle is 0.30S c liter/min or less under the standard state (0°C and 1 atm), in which S c is an opening area of the central nozzle (1) of the multitubular burner. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107382051-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107382051-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10167543-B2 |
| priorityDate | 2009-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.