http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4037046-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d177bc90ac2b247d8e28355b5316173 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2040-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2219-044 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C309-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M135-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C309-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M135-10 |
| filingDate | 1990-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2be1e787128ddaac1c905d4e88a6d558 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1e84dc08b96c713e73c31dada5b0ac28 |
| publicationDate | 1992-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-4037046-A1 |
| titleOfInvention | METHOD FOR PRODUCING AN ASH-FREE CORROSION PROTECTION FOR MINERAL OILS -II- |
| abstract | In prepn. of an ash-free anti-corrosion agent for mineral oils, esp. for 2-stroke engine oils with pre-mix components, alkylbenzene sulphonic acid mixts. with oil-insol. structure and 1-2 2-32C alkyl gps. are condensed in a 2-stage process with prim. or sec. 16-22C amines in the 1st stage, and with 4-12C amines and HCHO, as paraformaldehyde in the 2nd stage, to an oil-soluble prod. In the 1st stage, 0.4-1.2 mols of HCHO as paraformaldehyde, w.r.t. 1 mol of SO3H, 0.001-0.03 wt% of a foam suppressant, and 0.2-0.8 mols of molten fatty amine w.r.t. mol. SO3H at 60-110 deg.C, are added to the whole amt. of the alkylbenzene sulphonic acid in a reactor, with cooling. After a post-reaction of up to 30 mins., the mixt. is cooled to 70 deg.C and the remainder HCHO, up to 1.8 mols w.r.t. 1 mol SO3H, is added, as paraformaldehyde, and 0.6-1.2 mols of short-chain amine w.r.t. 1 mol SO3H, at 70-110 deg.C, with cooling. The mixt. is heated to 120-130 deg.C and after 30 mins. the water of reaction is removed by N2 stripping. ADVANTAGE - The agent has high polarity, and is used in low concn. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114292682-A |
| priorityDate | 1990-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.