http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02207062-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 |
| filingDate | 1989-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ecbd56f7d05e62ff1b24ec1ed4a7f054 |
| publicationDate | 1990-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02207062-A |
| titleOfInvention | Production of reactive oligo-carbonate and polycarbonate |
| abstract | PURPOSE: To obtain the title substance with no use of toxic phosgene by reaction of a dihydric phenol and bis(2,4,6-trichloro-phenyl) carbonate, bis(2,4- dichlorophenyl) carbonate or bis(2-cyanophenyl) carbonate in the presence of a catalyst selected from electron-donative amines under homogeneous solution polymerization conditions. n CONSTITUTION: The reaction between a dihydric phenol and bis(2,4,6-tri- chlorophenyl) carbonate, bis(2,4-dichlorophenyl) carbonate or bis-(2-cyanophenyl) carbonate is carried out in the presence of a catalyst selected from electron donor amines such as N,N-dimethyl-4-aminopyridine at 20-150° to give reactive oligo-carbonates. The dihydric phenol is selected from formals I through IV (R 1 through R 4 are H, 1-8C alkyl, phenyl; X is halogen; n is 0 to 4). The reactive oligocarbonate or co-oligo-carbonate is heated under vacuum to give polycarbonate or copolycarbonate. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1989-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.