http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2539956-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0bd04d2c68523beafef8cbfb38a520d2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23G1-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23G1-02 |
| filingDate | 1975-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c49fe7fa48bec1d51448532fb566b4c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85363d38622a0ee932d9d63af48096c2 |
| publicationDate | 1977-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2539956-A1 |
| titleOfInvention | CLEANING AND PASSIVATION PASTE |
| abstract | The paste contains (i) a mercaptan; (ii) a suspension agent; (iii) thiourea; and (iv) >=1 acid. The mercaptan is >=1 aromatic, heterocyclic mercaptan insol. in water or other polar solvent. The pref. mercaptan is 2-mercaptobenzimidazole (I) and/or 2-mercaptobenzthiazole (II), forming 0.5-5 wt.% of the finished paste. The paste pref. contains 1-20% diatomite, siliceous chalk, and/or Vienna lime; 2-20% thiourea; 0.1-2% amidosulphonic acid; 1-20% organic acid; 1-10% suspension agent; and a skin protective. Used e.g., on silver plates cutlery or ornaments. By using a paste, solids do not settle out; and the silver sulphide tarnish is very rapidly dissolved by chemical reactions; very little rubbing is required and the passive layer has a long life. |
| priorityDate | 1975-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.