| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6886
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-21
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6856 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-21 |
| filingDate |
2005-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2010-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d10c7cd56d498448663ef785b1bc451
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_afd39d8729d8f36949597b55c5f2ec9a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_059208bba5674eedf2d9bdc8630e68f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14ddb5d4130e4ebb21238f1b4f97d3b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23148bf43ab59fb1d8db547acd9a7f2b |
| publicationDate |
2010-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-100577709-C |
| titleOfInvention |
Process for adding methine UV light absorbent to PET prepared by direct esterification |
| abstract |
A method for incorporating a UV light absorbing compound into a polyester prepared using direct esterification of reactants selected from a dicarboxylic acid and a diol. The method comprises reacting the reactants in an esterifying reactor under conditions sufficient to form an esterified product including at least one of an ester, an oligomer, or mixture having an ester and a mixture of low molecular weight polyester; polymerizing the esterified product in a polycondensation reactor to form a polyester; and adding the UV absorbing compound to the esterified products when at least 50 % of the carboxy groups initially present in the reactants have been esterified to obtain a yield of UV absorbing compound incorporated into the polyester of greater than 25%. Articles utilizing the UV protected polyester prepared by the method of the invention are additionally disclosed. |
| priorityDate |
2004-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |