http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H028217-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a526baeaf0a6e90f4a91d4dbfd619756 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 |
| 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/C08J9-28 |
| filingDate | 1989-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e315a2bcde6b58b9de6844397fdb4ba |
| publicationDate | 1990-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H028217-A |
| titleOfInvention | Manufacture of polyester with ultrahigh molecular weight |
| abstract | PURPOSE: To provide polyester with ultrahigh molecular weight, by dissolving polyester prepolymer into organic solvent, recovering it, producing porous fiber material of the prepolymer, and polymerizing it in solia phase at an elevated temperature. n CONSTITUTION: (A) polyester prepolymer (e.g. polyethylene-terephthalate, polyethylene-naphthalate) with more than 0.2dl/g, preferably 0.3-2dl/g of intrinsic viscosity is dissolved into an organic solvent (mixed solvent of trifluoroacetic acid/methylene chloride is preferable). (B) prepolymer is condensed and recovered from this solution using alcohol group or ketone group, porous fiber material of the prepolymer is produced, and preferably it is compressed to become porous pill. (C) by solid phase polymerization of the pill in the presence of inactive gas, at an elevated temperature, and preferably in a fixed-bed reactor, polyester with ultrahigh molecular weight is provided. n COPYRIGHT: (C)1990,JPO |
| priorityDate | 1988-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.