http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04222809-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0cdb395105a75f1b0346cc31b81fade1 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-08 |
| filingDate | 1990-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7872ea3aa982c24bab9f195aed0c0445 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6bb215fe80ba056fc2101da2b8282f6 |
| publicationDate | 1992-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04222809-A |
| titleOfInvention | Production of high para-novolak resin |
| abstract | PURPOSE: To produce the subject resin excellent in heat resistance and moisture resistance and useful for grindstone, etc., by bringing an aldehyde into contact with a mixed solution that is adjusted to a strong acid pH region by mixing a catalyst with phenol in a prescribed temperature range. n CONSTITUTION: A phenolic compound such as phenol is mixed with a catalyst such as sulfuric acid or sulfamic acid to adjust to a pH of ≤0.5. The adjusted mixed solution is catalytically reacted with an aldehyde such as formaldehyde at 60-95°C, preferably 70-90°C, to provide the objective resin. n COPYRIGHT: (C)1992,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008120856-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009158118-A |
| priorityDate | 1990-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.