http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03221529-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_424db9d56b06a23aed410fcf5df652f3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G77-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G77-32 |
| filingDate | 1990-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_07cb2038d38fb818a736f81baa52c255 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78c11ae3660f212aa47796ca23b40379 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff6a463aa2d9cd3eeb0e0bbea4c32b0c |
| publicationDate | 1991-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03221529-A |
| titleOfInvention | Preparation of highly pure organopolysiloxane |
| abstract | PURPOSE: To prepare the subject siloxane reduced in the amounts of the remaining catalyst and silanol groups and not causing the problems such as corrosion by releasing the bonded catalyst with water or steam and washing out the remaining catalyst with water. n CONSTITUTION: When an organopolysiloxane is prepared by a polymerization reaction or equilibration reaction in the presence of sulfuric acid and/or bumming sulfuric acid, as a catalyst, water and/or steam are added to the organopolysiloxane in all amounts of 0.01-50 pts.wt. per pt.wt. of the catalyst after the finish of the reaction to hydrolyze and remove the catalyst bonded to the organopolysiloxane. The catalyst solution layer is separated and removed and the catalyst remaining in the siloxane is washed out with water to provide the objective siloxane. n COPYRIGHT: (C)1991,JPO&Japio |
| priorityDate | 1990-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.