http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H03190926-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 |
| filingDate | 1990-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9791cfd11a4585cd20f918b1e8615e60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16822790f71e8d841f777aa3588a44e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_513c2e654e45944d59881e263e1ecb9c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6530cb560cd69996406456b6deaa5e2d |
| publicationDate | 1991-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H03190926-A |
| titleOfInvention | Two step process for preparing aromatic polycarbonate without using phosgene |
| abstract | PURPOSE: To easily obtain the subject high mol.wt. polymer without using, phosgene by a method wherein after a diphenol and a dialkyl carbonate are reacted together while a by-produced alcohol is discharged, the product is furthermore condensed at high temp. n CONSTITUTION: At first, a diphenol (a mixture) and a dialkyl carbonate (a mixture) are reacted together while by produced alcohol is discharged to obtain an arom. oligo-carbonate with alkyl carbonate terminals. Successively, the oligo-carbonate is condensed at high temp. to obtain an aimed polymer. In addition, as the diphenol, 2,2-bis-(4-hydroxyphenyl)-propane, etc., are pref. In addition, the first half reaction between the diphenol and the dialkyl carbonate is pref. performed by using an autoclave with a stirrer while the dialkyl carbonate is continuously introduced by means of a pump. n COPYRIGHT: (C)1991,JPO |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9503351-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H1135672-A |
| priorityDate | 1989-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.