| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_26c475bcbe0c24b485b6f37c45cd921f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-184
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C22-362 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C22-78 |
| filingDate |
2020-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c42b5a162bd220848eef030b34388bc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_083c9b99cd0e1865ee0d715419afb5a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b48c9f5d51531518bf93926ef62d7725
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88dce811724fe385ca2626d1b1e3bcb3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ab6e379ac1cef836a3e647a214f84a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c27b3042ed9f53f5f6722f4dd070e206 |
| publicationDate |
2021-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2021104973-A1 |
| titleOfInvention |
Resource-saving method for activating a metal surface prior to a phosphatization process |
| abstract |
The invention relates to a method for phosphatizing metal surfaces in a layer-forming manner using a colloidal aqueous solution as an activation stage, containing a dispersed particulate constituent, wherein in addition to dispersed inorganic compounds of phosphates of polyvalent metal cations, the particulate constituent contains polymeric organic compounds as dispersants, which are composed at least partly of styrene and/or an α-olefin with no more than 5 carbon atoms and at least partly of maleic acid and/or the anhydride and/or the imide thereof, and the polymeric organic compounds additionally comprise polyoxyalkylene units. In the activation stage of the method according to the invention, the addition of condensed phosphates can be omitted such that the content of dissolved condensed phosphates in the colloidal aqueous solution is less than 0.25 based the phosphate content in the particulate constituent of the solution, in each case with respect to the element P. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023078791-A1 |
| priorityDate |
2019-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |