http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02245023-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 |
| filingDate | 1990-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_532f16ed953e469a8fa83fd2b9526765 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b35dbce75272fde284cda29c2ec0e9e0 |
| publicationDate | 1990-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02245023-A |
| titleOfInvention | Branched thermoplastic polycarbonate and its production |
| abstract | PURPOSE: To obtain a polycarbonate improved in melt strength and shear strength by reacting a linear arom. polycarbonate with a specific polyhydric phenol in the presence of a carbonate-equilibrating catalyst. n CONSTITUTION: A linear arom. polycarbonate obtd. by the interfacial polymn. of a dihydroxyarom. compd. and phosgene and having a number average mol.wt. of 10,000-30,000 and 0.1-2.0 mol of a polyhydric phenol having at least two hydroxyl groups per molecule [e.g. 1,1,1-tris(4-hydroxyphenyl)ethane] are subjected to melt condensation in the presence of 0.01-0.1 mol of a carbonate- equilibrating catalyst (e.g. tetrabutylammonium tetraphenylborate) at 200-350°C for 1-30 min to give a branched thermoplastic polycarbonate having a melt index ratio of 2 or higher, a complex viscosity ratio of 3.0 or higher, a number average mol.wt. of 5,000-20,000, an intrinsic viscosity (25°C, in chloroform) of 0.50-0.55, and a melt viscosity of 4,000-15,000 cm.s. n COPYRIGHT: (C)1990,JPO |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H06200010-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011105862-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4994553-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9214772-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007262415-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011088951-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5243018-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003509551-A |
| priorityDate | 1989-01-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.