| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7a6724b41d19abf7ef173eaa6fb586e1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd3cf39dc64beab7320a2dbcd262e76f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6b672b39200d79faae928bc3ba203aac |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2998
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2993
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2991 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22C1-2246
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D161-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D159-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D161-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22C1-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D161-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D159-00 |
| filingDate |
2007-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2016-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f2e53079ec322edf4cf829223000deca
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5cdd1bd06d3fd48a10be8a2120387b0 |
| publicationDate |
2016-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9458349-B2 |
| titleOfInvention |
Phenol-formaldehyde novolac resin having low concentration of free phenol |
| abstract |
A phenol-formaldehyde novolac resin having a low concentration of free phenol prepared by distilling residual phenol from a molten novolac resin and replacing at least a portion of the phenol with a solvent having a volatility equal to or less than phenol. Such modified novolac resins are suitable for the production of resin coated molding sands for shell molding and sand cores, as well as for the production of resin coated proppants for use in oil and gas recovery operations. |
| priorityDate |
2007-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |