http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003050429-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-2913 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-672 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-183 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-672 |
| filingDate | 2002-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38355301a0baf34de09a5663164e5572 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32f5ee8d972d417bc4cad1c948627068 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0126c87a0122dd95861516968f64a391 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d0e96d78d49e3691a3f10ec28f8b25f |
| publicationDate | 2003-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2003050429-A1 |
| titleOfInvention | Poly (trimethylene terephthalate) and a process for producing the same |
| abstract | The present invention relates to a poly(trimethylene terephthalate) comprising 80% by weight or more of trimethylene terephthalate units based on the entire repeating units, having an intrinsic viscosity of from 0.4 to 1.5 dl/g, and satisfying the following formula (1) n (1) [—OH]/([—OH]+[—COOH]+[—CH 2 CH═CH 2 ])×100 ≧40 n wherein [—OH], [—COOH] and [—CH 2 CH═CH 2 ] represent a terminal hydroxyl group content, a terminal carboxyl group content and a terminal allyl group content of the poly(trimethylene terephthalate), respectively. n The poly(trimethylene terephthalate) is a polymer for molding with high whiteness excellent in melt stability, oxidation resistance stability and spinning stability, and suitable for molding a fiber, a film, and the like. n The above poly(trimethylene terephthalate) can be produced by the following process regardless of the charging scale in polymerization. Terephthalic acid or/and its lower alcohol ester is reacted with 1,3-propanediol to form 1,3-propanediol ester of terephthalic acid and/or its oligomer, and then polycondensation reaction of the reactant is conducted at temperature of from 235 to 270° C. while the above formula (1) is being satisfied to give the above poly(trimethylene terephthalate). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006041774-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7196159-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7147815-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6652964-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006084781-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004222544-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2810988-A4 |
| priorityDate | 2001-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 140.