| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1b7a5c546db0678dbd6f9594fc43f2d6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-173
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-149
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23F11-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23F11-14 |
| filingDate |
2019-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c8d4371e53977d12f3acf8c6b72893f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_457442c2a4ebefcfa47832b21b721e41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0480b76baa14758851f0b87eb957932a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bef3e4407f085ab6ad74a269ee4157b1 |
| publicationDate |
2022-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11414764-B2 |
| titleOfInvention |
Method of inhibiting metal corrosion with a piperazine-based polyurea |
| abstract |
A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm. |
| priorityDate |
2019-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |