| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ac17835c97e6c72213815ca74845386 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-23 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-23 |
| filingDate |
1989-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0f8a9a892fbf30d40caea1346b4bd87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31ab1d4e95eb05dad91ba6f56903820b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5af46790fcc9c10e674df4d782a4240f |
| publicationDate |
1990-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0363200-A2 |
| titleOfInvention |
Improvement of zinc phosphate treatment for cold working |
| abstract |
The present invention provides a zinc phosphating method for cold working which hardly produces sludge and can be carried out in a short period of time. The method comprises treating a steel material with a surface conditioning solution comprising 1 to 20 ppm of titanium ion and having a pH of 8 to 11, and then treating it with a chemical solution comprising zinc ion in a concentration of 1 to 20 g/l, phosphate ion in a concentration of at least 5 g/l, nitrate ion in a concentration sufficient to have a concentration ratio of phosphate ion / nitrate ion of at least 1/3, pyrophosphate or tripolyphosphate ion in a concentration of 0.2 to 2 g/l, Fe (II) ion in a concentration of 0.1 to 20 g/l and a material decomposing nitrite ion and not oxidizing the Fe (II) ion in a concentration of at least 0.05 g/l. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6068710-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6309477-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113677826-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5908512-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0946786-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0979880-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9119828-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0946786-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9504842-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5370909-A |
| priorityDate |
1988-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |