| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4eacb0405869fef7a8f1c516085f2682 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-3196
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L29-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L2666-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J161-06 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L29-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09J161-06 |
| filingDate |
1986-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f4cc5f23251d1b0762f3187244df3a5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b53955468ff6b95bf6940041e6ec8c23 |
| publicationDate |
1986-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0200479-A2 |
| titleOfInvention |
Phenolic resins |
| abstract |
A phenol-resorcinol-formaldehyde resin and a method for making the same is disclosed. In the method phenol and formaldehyde at an initial pH of 8.5 to 9.2 are reacted in the presence of a sodium sulphite catalyst. The reaction mixture is heated and refluxed until it has a viscosity of U-V Gardner-Holdt letters. Resorcinol is added to the mixture and refluxing is continued until it has a viscosity of 30 to 100 Gardner seconds. The reaction mixture is diluted with a water miscible solvent to obtain a resin solution having a solids content of about 40 to 60 percent by weight. An alkali metal carbonate in the amount of about 4 to about 8 percent by weight of the resin is added to make adhesives. Fumed silica is also added to the resin solution by means of high shear apparatus to make the solution thixotropic. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102492247-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102492247-B |
| priorityDate |
1985-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |