| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a8a9982b1666c54b5bf02d6c944891e4 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K13-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C03C15-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B44C1-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C03C25-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K13-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25F3-00 |
| filingDate |
2013-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe035bf4c982fd04dbbc61823ce81753
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ed0f14fa883833861d1eae385ffc016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a959cce349ff5e508bd6897863b0b84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b8130b16dcd773cd71d96d5dd1ae6ec |
| publicationDate |
2016-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9290410-B2 |
| titleOfInvention |
Method for sludge control in wet acid etching |
| abstract |
The disclosure is directed to a method for controlling the sludge that is generated during the wet acid etching of glass articles. The four Factors that need to be controlled are (i) the dissolved glass level A; (ii) the HF concentration B; (iii) the second acid concentration C, the second acid being a strong acid, and (iv) the solubility constant D of the precipitate, Ksp, which is controlled by changing temperature or ionic strength. The disclosed method utilized HF as the etchant and a strong acid selected from the group consisting of HCI, H 2 SO 4 .HNO 3 and HCIO 4 . |
| priorityDate |
2012-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |