http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2551401-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5f2c410b93b9dd438def824406bb6748 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-02 |
| filingDate | 2016-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5b6c902a7dcfdac23216afeac6adbc1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97bd5e7cfa5f5154bbd3698324f08af6 |
| publicationDate | 2017-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2551401-A |
| titleOfInvention | Durable white inorganic finish for aluminium articles |
| abstract | A method of forming a high luminosity inorganic coating on an aluminium or aluminium alloy article, wherein the article is immersed in an electrolyte and subjected to a plasma anodising process. The coating is preferably applied at a thickness of at least 10 µm. The average power of individual discharges are preferably kept below 15 W, each discharge is preferably for less than 120 µs with a discharge energy below 1.8 mJ. The anodic breakdown strength of the coating in the electrolyte may be kept below 300 V. The electrolyte may comprise at least one soluble phosphate, at least one soluble hydroxide and at least one organic acid such as up to 4% ammonium phosphate, up to 2% acetic acid, up to 2% potassium hydroxide and up to 2% sodium tetrafluoroborate. The pH of the electrolyte may be between 6 and 9, and the electrolyte may also be substantially free of transition metal ions and/or silicates. A further aspect is a high luminosity inorganic coating with a luminosity L* ≥ 80.0% and comprising at least 50% gamma alumina. The coating is preferably at least 10 µm thick and preferably contains micropores with a diameter of > 5µm. The coating preferably has a porosity of at least 25%. There is also disclosed an aluminium or aluminum alloy article coated with a high high luminosity inorganic coating with a luminosity L* ≥ 80.0% and comprising at least 50% γ-alumina. |
| priorityDate | 2016-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.