| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_520278049ae6d5edd47f3440abdc5a27 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-066
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-076
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C3-087 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C3-064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C3-093 |
| filingDate |
2005-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2009-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d394fd011369bd33ff4290c85feaeb1d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_996b4e43d2f73c03d0db66ce704367d6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ecdd763701e4f0eb05e341df9e01198f |
| publicationDate |
2009-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-102005005994-B4 |
| titleOfInvention |
Lead- and arsenic-free optical heavy-duty glasses |
| abstract |
Lead- and arsenic-free glass with good chemical resistance and crystallization stability, which has a refractive index (n d ) greater than or equal to 1.57 and less than or equal to 1.61, a depreciation (ν d ) greater than or equal to 56 and less than or equal to 63 and a transformation temperature (Tg) of less than or equal to 520 ° C, having the following composition (in wt .-%): SiO 2 37-46 B 2 O 3 12-18 Al 2 O 3 1-7 Li 2 O 5,5- <7 Na 2 O 1-5 K 2 O <4 MgO <5 CaO <7 BaO 21-29 SrO 0.1-1.5 ZnO 1-4.5 TiO 2 0.1-0.5 ZrO 2 <0.7 with the proviso that ΣTiO 2 , ZrO 2 is less than 0.9. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102009011508-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102009011508-A1 |
| priorityDate |
2005-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |