http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0319977-A3
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-20 |
| filingDate | 1988-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1990-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0319977-A3 |
| titleOfInvention | Process for the preparation of diorganopolysiloxanes terminated with triorganosiloxy groups |
| abstract | Diorganopolysiloxanes with triorganosiloxy groups as terminal units are produced in that in a first stage cyclic diorganopolysiloxane and / or diorganodichlorosilane hydrolyzate with 0.05 to 3% by weight triorganochlorosilane, based on the weight of the amount of cyclic diorganopolysiloxane and / or diorganodichlorosilane hydrolyzate used, in the presence of 1 to 50 ppm by weight phosphorus nitride chloride on the total weight of the amount of organosilicon compounds used, to α-triorganosiloxy-ω-chlorodiorganopo lysiloxane and in a second stage, the α-trior ganosiloxy-ω-chloro-diorganopolysiloxane obtained in the first stage in a condensation reaction by adding diorganopolyysiloxane each having a Si-bonded hydroxyl group to the reaction mixture of the first stage, in Amounts of 1 to 1.2 grams of Si-bonded hydroxyl group in this di organopolysiloxane per gram atom of Si-bonded chlorine in the tri-organochlorosilane, is further reacted and in a third stage after the addition of hexaorganodisilazane to the reaction mixture of the second stage to inactivate phosphonitride chloride and to remove hydrogen chloride from the diorganopolysiloxanes with triorganosiloxy groups as terminal units, the lower-boiling constituents are removed by distillation. |
| priorityDate | 1987-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.