http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1056701-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36ba78f839bc2c80398d1be0313ae8ef |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H05K3-067 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F1-44 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B23K1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K3-26 |
| filingDate | 1975-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1979-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dac0f41d9b07a87ce35bddb5b0c5c462 |
| publicationDate | 1979-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1056701-A |
| titleOfInvention | Selectively stripping tin or tin lead alloys from copper substrates |
| abstract | ABSTRACT OF THE DISCLOSURE Acidic solutions for selectively stripping tin or tin-lead alloys from copper substrates comprising an aqueous solution of at least one nitro-substituted aromatic compound; an inorganic acid capable of readily reacting with tin and lead to form water-soluble salts thereof and incapable of reacting with tin and lead to form a water-insoluble compound film on the tin or tin-lead alloy surface, preferably fluoboric acid; a thiourea; an organic acid of the formula RCOOH wherein R is 1-2C alkyl or hydrogen; and a haloacetic acid wherein the halogen is chloro or bromo. The result in a pronounced synergism in accelerating the rate of stripping the tin or tin-lead alloy deposit from the copper substrate. |
| priorityDate | 1974-08-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.