| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_11b4c987b5ab49a487129a41bbde391c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0e1bedb0135eda76570fcf7e1510cdb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad9d69b9312e9198ac4e7b3c33dce5c9 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-785
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 |
| filingDate |
2012-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0e86b0905c1f20864336440706e856c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_899dbcc30e96f36e53808c57cd060151
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4bae56c4b5c041d97940787c29462eec |
| publicationDate |
2012-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012253003-A1 |
| titleOfInvention |
Method for producing liquid crystal polyester |
| abstract |
A method is provided for producing a liquid crystal polyester including: (1) polycondensing a mixture of a compound of formula (I) with a compound of formula (II) in a polymerization tank at 260 to 350° C. to form a prepolymer, wherein a ratio of by-products to be distilled off to the theoretical amount of by-products formed when the compound of formula (I) is polycondensed with the compound of formula (II) in a stoichiometric relation is 95% or more; (2) continuously discharging the prepolymer from the polymerization tank in a molten state, solidifying the prepolymer while transferring, and continuously grinding the solidified prepolymer by a grinder provided downstream in a transfer direction to produce prepolymer particles; and (3) heat-treating the prepolymer particles in their solid state under an inert gas atmosphere, thereby subjecting them to solid phase polymerization. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111440063-A |
| priorityDate |
2011-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |