http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009249352-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc9740ef706cde29e885504f274ffa |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F24-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B6-00 |
| filingDate | 2008-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9b0071a3afc24f653d4ff24e89fe8a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bde5d29e7d5a1637b465c9622a0b321e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53aaf01f57e4f8fd8f5bc38410692a41 |
| publicationDate | 2009-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009249352-A |
| titleOfInvention | Lactone monomer purified product, polymer and optical fiber thereof, and production method thereof |
| abstract | The present invention provides a purified lactone monomer for forming a lactone polymer excellent in colorless transparency and thermal stability. SOLUTION: The lactone monomer represented by the general formula (1) and a sulfur compound having a boiling point higher than that of the lactone monomer are contained as impurities, and the sulfur concentration derived from the sulfur compound is 50 ppm or less. A purified product of lactone monomer. (In the formula (1), R 1 represents a methyl group, an ethyl group or a propyl group, and R 2 and R 3 independently represent a hydrogen atom, an unsubstituted group or a carbon atom having 1 to 12 carbon atoms which may be substituted with a fluorine atom. An alkyl group, a phenyl group which may be unsubstituted or substituted with an alkyl group having 1 to 12 carbon atoms, and R 2 and R 3 are 5 together with the carbon atom to which they are bonded together. Alternatively, a 6-membered ring may be formed, and the 5- or 6-membered ring may be substituted with a fluorine atom.) [Selection figure] None |
| priorityDate | 2008-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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