http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2165149-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_910b2c2c248c55c9f6c36007b447ad2c |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-189 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-30 |
| filingDate | 1995-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a0a0622a751ac1b3c183e87734ca488 |
| publicationDate | 1996-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2165149-A1 |
| titleOfInvention | Solid state polymerization process for foamed poly(ethylene naphthalate) |
| abstract | This invention includes a process for preparing a solid state polymerized poly(ethylene naphthalate) (PEN) polymer or copolymer thereof comprising: (1) preparing a molten prepolymer with an intrinsic viscosity of from 0.25 dl/g to 0.50 dl/g, (2) dispsersing an inert gas into the molten prepolymer to form a foamed PEN prepolymer with a void fraction of from 0.10 to 0.50, (3) forming the foamed PEN prepolymer into granules, (4) devolatilizing the granular PEN prepolymer at a temperature of from 80 °C to 140 °C, (5) crystallizing the devolatilized PEN prepolymer at a temperature of from about 150 °C to 260 °C, and (6) solid state polymerizing the crystallized PEN prepolymer at a temperature of from 235 °C to about 265 °C to form a solid state polymerized PEN polymer or copolymer thereof. |
| priorityDate | 1994-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.