http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56157431-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5128cfc84a0fb189fceb3cd240c44493 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate | 1980-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67312d19f6162c8280de995ebe8ebcd3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56b72458b4a6f73cfe5a43e3568c038a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e33c78ffa8bfc8582d0486d9116781bd |
| publicationDate | 1981-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56157431-A |
| titleOfInvention | Fine resin powder and preparation thereof |
| abstract | PURPOSE: To obtain perfectly spherical, fine polyester powder having excellent smoothness, touch, filling properties and toughness, by colliding a heated, molten polyester resin with a high-velocity pressurized gas to flow together, and injecting them from a nozzle to polymerize the resin in a solid state. n CONSTITUTION: A polyester resin having an average polymerization degree less than 30 or a reduced viscosity less than 0.25 is heated and molten. The molten polyester resin is collided with a high-velocity pressurized gas at an angle of incidence θ of more than 30° to the direction of the gas flow to flow together, and thereafter the mixture is injected from a nozzle. The thus-obtained perfectly spherical, fine resin powder having a maximum particle diameter of 100μ or less is polymerized in a solid state at a reduced pressure or in a heated, inactive atmosphere. It is preferable that the pressure of a gas at which the gas is blown into a nozzle is 0.5kg/cm 2 G or more. It is preferable to use a polyethylene terephthalate resin or a copolymerized polyester resin containing principally ethylene terephthalate units as a polyester resin. n COPYRIGHT: (C)1981,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102004012579-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012172074-A |
| priorityDate | 1980-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.