| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f16f3beb32124135db9ff8fca4e3c8b5 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-589
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-571
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-62 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-571
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-589
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-63 |
| filingDate |
1986-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1987-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8faa6353e7063c49718da9c19ec7073a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8aeae7dab42504795ef5a230697e84b |
| publicationDate |
1987-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4689382-A |
| titleOfInvention |
Process for the preparation of organopolysilazanes and of organopoly(disilyl)silazanes with improved thermal behavior and use of such silazanes as ceramic precursors |
| abstract |
The present invention relates to a process for the treatment of polysilazane in a homogeneous phase with a catalytically effective quantity of an acid catalyst selected from HClO4 and CF3SO3H. The polysilazane is preferably selected from the group consisting of organopolysilazane, organopoly(disilyl)silazane and mixtures thereof. The organic radicals bonded to the silicon atoms are preferably saturated or aromatic hydrocarbon radicals and the silicon atoms of the polysilazane are substantially free from any hydrogen atom bonded directly to the silicon atoms. The polysilazanes treated in this manner have good thermal behavior and, are particularly useful as precursors of ceramic products. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5017640-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9593210-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5124283-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5008422-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5759460-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5322913-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4861844-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5426160-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5073330-A |
| priorityDate |
1985-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |