| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_36c7e6417df7d3a93390112f3b4a70b5 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-06 |
| filingDate |
1988-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3775ba1ba34fd2c7ea7824abcffe481
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9475496f5c5ed455b073b787ded0b09c |
| publicationDate |
1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4960850-A |
| titleOfInvention |
Production of diorganopolysiloxanes having silanol end groups |
| abstract |
Polydiorganosiloxanes having silanol end groups, well suited for the production of vulcanizable silicone compositions, are conveniently prepared by bulk polycondensing a polydiorganosiloxane oligomer having silanol end groups in a closed reaction zone in the presence of a catalytically effective amount of trifluoromethylsulfonic acid, at a temperature of from 20 DEG to 160 DEG C., while continuously removing water of polycondensation, and terminating the polycondensation reaction by adding a catalyst neutralizing amount of a cyclopolydiorganosilazane or a polydiorganosilazane having diorganoaminosilyl end groups to the medium of reaction. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005226802-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7438882-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5145934-A |
| priorityDate |
1987-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |