http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5749615-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-35 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 |
| filingDate | 1980-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba7c24755cd214bd5efab172248c9df1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8a7040d37981a4b121640a5a381bc3d8 |
| publicationDate | 1982-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5749615-A |
| titleOfInvention | Preparation of polyester having high polymerization degree |
| abstract | PURPOSE: To obtain a polyester having high polymerization degree through a reaction at normal pressure or under pressure, by adding a cyclic iminoester compound of a specific structure to a saturated polyester. n CONSTITUTION: A saturated polyester substantially linear, having ≤1 equivalent/ 10 6 g terminal methyl group, e.g., polyethylene terephthalate, etc. is reacted with preferably 0.5W5wt% at least one of cyclic iminoester compounds [e.g., 2,2'- bis( 3,1-benzooxazine-4-one ); 2,8-dimethyl-4H,6H-benzo( 1,2-d; 5,4-d' )bis( 1,3 ) oxazine-4,6-dione, etc. ] shown by the formula I (D and X is bifunctional organic group; ring structure of a group shown by the formula II is 5-6 membered ring) or shown by the formula III (R 1 and R 2 are monofunctional organic group; A is a compound having tetra valent aromatic group), and, if necessary, a monoepoxy compound, at ≥ the melting point of the polyester to ≤290°C. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5665855-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2694008-A1 |
| priorityDate | 1980-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.