http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2654118-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a899eba0e35112cc25b4aa1b0b7fda90 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25D11-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D11-12 |
| filingDate | 1990-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f61634a32a159f583dcd0c9277fa582b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a59e2adbe19c330634ecadc67845618 |
| publicationDate | 1991-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | FR-2654118-A1 |
| titleOfInvention | PROCESS FOR THE ELECTROLYTIC TREATMENT OF ALUMINUM AND ALUMINUM ALLOYS. |
| abstract | The invention relates to a method for imparting a variety of light to medium colors to anodized aluminum or aluminum alloys, which comprises the steps of anodizing an aluminum or aluminum alloy part in the invention. a strong acid type aqueous electrolyte solution, by applying a direct current to form, on the workpiece, a porous anodic oxide film having a thickness of at least about 3 µm; subjecting the resulting anodized part to an alternating current in a strong acid type aqueous electrolyte solution comprising an organic carboxylic acid containing at least one reactive group bonded to the carbon atom in the alpha position; and electroplating the part. In a preferred embodiment resulting in more intense color tones, including those in the blue to gray-blue range, one or more "hold periods" are maintained without current at various stages of the process. In another embodiment, better color uniformity is obtained by subjecting the part, prior to electrolytic coloring, to a DC pre-treatment step. The resulting aluminum or electrolytically colored aluminum alloy is particularly useful as an architectural product. |
| priorityDate | 1989-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.