| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0092
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2205-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0068
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-045
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2075-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29L2031-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2995-0093 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0071
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-02 |
| filingDate |
2012-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b529527411c527b22b417f3d00354e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb83fdb5995c67afd11415b5020f3bd0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_603c5b592ab7e9303695a7fc4b7f600c |
| publicationDate |
2020-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
BR-112014016981-B1 |
| titleOfInvention |
"WELL BACKGROUND FILTER WITH OPEN CELL FOAM CONTAINING NANOPARTICLES" |
| abstract |
NANOCOMPOSITES FOR SCREEN RETENTION SCREEN WITH ABSORPTION. The present invention relates to a downhole filter comprising an open cell foam; and nanoparticles disposed in the open cell foam and exposed within the pores of the open cell foam. A method for preparing the downhole filter includes combining a polyisocyanate and polyol to form a polymeric composition; introduce nanoparticles into the polymeric composition; and foaming the polymer composition to produce the downhole filter comprising an open cell foam with exposed nanoparticles within the pores of the open cell foam. Nanoparticles can be derived with functional groups. |
| priorityDate |
2012-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |