http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02218718-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03627f82d4edc6567f9627df6efdde5d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-098 |
| filingDate | 1989-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bf27db71c5242d10f8e611cd9cfd70a |
| publicationDate | 1990-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02218718-A |
| titleOfInvention | Method for improving color of polyarylate using cobalt salt |
| abstract | PURPOSE: To obtain a polyarylate which possesses excellent color tone and light transmittance by polymerizing a diester of an arom. dicarboxylic acid with bisphenol in the presence of a particular amt. of a cobalt ester of an (iso)aliph. carboxylic acid. n CONSTITUTION: A functional deriv. of terephthalic acid and/or isophthalic acid is melt-mixed with a bisphenol, such as 4,4'-dihydroxy-diphenyl ether, and a cobalt ester of a 3-20C (iso)aliph. carboxylic acid (e.g. cobalt 2-ethylhexanoate) in an amt. of pref. 1 to 80 ppm based on the polymer is added, e.g. in the form of a toluene soln. to the mixture, followed by polymn. to prepare a contemplated polymer. n COPYRIGHT: (C)1990,JPO |
| priorityDate | 1988-10-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.