http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8916007-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2ad7077f879879f6e79a9ef2f2e02376 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04af53c05605ca57227bb55db112679c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C2222-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D5-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-74 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-30 |
| filingDate | 2008-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c9cb40a811d3de044977c95ca042960 |
| publicationDate | 2014-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8916007-B2 |
| titleOfInvention | Composition for chemical conversion treatment and member having a chemical conversion coating formed by the treatment |
| abstract | The object of this present invention is to provide novel means for inhibiting elution of hexavalent chromium from a chemical conversion coating. A composition for chemical conversion treatment comprises at least 0.1 g/L of a polyphenol and at least 1.5 g/L in chromium ion equivalent of an aqueous trivalent chromium compound and has a pH of 6 or less. A chemical conversion coating formed on a metallic surface of a member by contacting the surface with the composition for chemical conversion treatment has a hexavalent chromium content of 0.04 μg/cm 2 or less after exposure to an environment having a temperature of 80 degrees C. and a relative humidity of 100% for 120 hours. The content of hexavalent chromium is measured by a method compliant with EN15205. A composition containing at least 0.1 g/L of a polyphenol can be used as a composition for post-coating treatment of a chemical conversion coating obtained by conventional chemical conversion treatment. |
| priorityDate | 2007-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 384.