| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_04650c4315071ee8af7d26e3441a53b1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S525-927
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-78 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D19-0052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B7-82 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D19-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B7-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29B7-82
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G2-28 |
| filingDate |
1986-11-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27259d81f8f7867c970e768c7ffa773e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7b47c2078a90e6008a9c9057c241da8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f52890634899a3c23b1c4ecbde30c17d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4fdb8b91c4ece74fde9ffbf482dc03de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7481d376bab20d6795369d39a0dddd36 |
| publicationDate |
1987-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0223537-A2 |
| titleOfInvention |
Process for devolatilizing molten oxymethylene polymer |
| abstract |
A process is provided for removing volatile materials from a molten oxymethylene polymer, according to which the molten polymer is passed through a rotating disk polymer processor having at least three stages; a first devolatilization stage, then a stabilization stage and then a second devolatilization stage. The molten polymer in the first devolatilization stage is maintained at a temperature above its melting point in the temperature range of from about 160°C to about 220°C and at a vapor space pressure of from about 0.1 to about 300 Torr. The polymer in the stabilization stage is maintained in the molten state at a temperature of from 160°C to about 220°C. The polymer in the second devolatilization stage is maintained in the molten state at a temperature of from about 160°C to 190°C and at a vapor space pressure of from about 0.1 to about 100 Torr. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1035510-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-738001-B2 |
| priorityDate |
1985-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |