http://rdf.ncbi.nlm.nih.gov/pubchem/patent/BG-111979-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_791179ee205575d1c8bbfe3be82fa1c8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C18-18 |
| filingDate | 2015-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc523f4f4ebbbd6bd827f23e2fdcea58 |
| publicationDate | 2016-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | BG-111979-A |
| titleOfInvention | METHOD FOR PRELIMINARY MAINTENANCE OF PRINTING PLATES |
| abstract | Method for pre-treatment of the printed circuit boards prior to chemical storage including treatment with an organic solvent comprising: dimethylformamide and NaOH or N-methyl-L-pyrrolidone and NaOH. To the solution of KMnO4 is added as a second oxidizer NaOAc. Neutralization of the printed circuit boards is performed with H 2 C 2 O 4. Better activation is provided by adding palladium salt to the pickling solution. The deposited copper matrix is finely dispersed, with low internal stresses. Suggested solutions have high efficiency, excellent stability and long service life. No complex equipment and facilities required. |
| priorityDate | 2015-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.