| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7851348db19297faa07ed5a450ecbbf3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B08B9-0555
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F251-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F16L55-42 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F251-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F16L55-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B9-055
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B08B9-04 |
| filingDate |
1994-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_535e939f7c69e4692dbbe2208a7ac776
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cf20021cb032bf783ee6960eb1149b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_569fcd381bf2bfdae186f7358a087323
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_418080dbe612ebf16f9f1a2d7dd7b21d |
| publicationDate |
1994-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0630694-A2 |
| titleOfInvention |
Cleaning pipeline interiors using gel pigs |
| abstract |
The interior of a pipeline is cleaned using a polymeric gel pig of a hydroxyethyl or hydroxypropyl cellulose reacted by a redox reaction with vinyl phosphonic acid. The gel pig is formed by hydrating the polymer in an aqueous liquid, and is crosslinked by the addition of a Lewis base or Bronsted-Lowry base. Contaminants entrained in the crosslinked gel pig during the cleaning process may be separated by the addition of a pH reducing agent to the pig, whereby the viscosity of the gel is caused to decrease. The gel may be used for further cleaning after contaminant separation by addition of an additional quantity of the Lewis base or Bronsted-Lowry base. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014203014-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6479450-B1 |
| priorityDate |
1993-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |