Patent application number | Description | Published |
20100030000 | PRODUCTION METHOD OF ALPHA-OLEFIN LOW POLYMER AND STORAGE METHOD OF PYRROLE COMPOUND - The object of the present invention is to provide production method of an α-olefin low polymer using a chromium series catalyst comprising a pyrrole compound as a component. The present invention relates to that in producing an α-olefin low polymer such as 1-hexene using an α-olefin such as ethylene as a raw material, a chromium series catalyst constituted of a chromium compound (a), a pyrrole compound (b) and an aluminum-containing compound (c) is used as a polymerization catalyst, and a concentration of a pyrrole dimer contained in the pyrrole compound (b) is 2% by weight or less based on the pyrrole compound (b). | 02-04-2010 |
20100036185 | PRODUCTION METHOD OF ETHYLENE LOW POLYMER - The object of the present invention is to provide a method of recovering decene under the condition that a decomposition product of a chromium series catalyst and the like is difficult to form from a high boiler from which an ethylene low polymer has been separated, in a production method of an ethylene low polymer using a chromium series catalyst. The present invention relates to that an ethylene low polymer and a high boiler containing a chromium series catalyst, decene, tetradecene and a by-produced polymer are separated by evaporation operation from a reaction liquid containing an ethylene low polymer obtained by low polymerization reaction using a chromium series catalyst, and the high boiler is concentrated such that the tetradecene concentration is 5% by weight or more by an evaporative separator | 02-11-2010 |
20100093952 | DEPOSIT DEACTIVATION TREATMENT METHOD - The object of the present invention is to provide a treatment method which deactivates deposits in a reactor and the like in a production process of an α-olefin low polymer. The present invention relates to that after completion of the production of a low polymer of ethylene in a reactor | 04-15-2010 |
20100331503 | PRODUCTION METHOD OF POLYOLEFIN, POLYOLEFIN AND 1-HEXENE FOR LINEAR LOW DENSITY POLYETHYLENE PRODUCTION RAW MATERIAL - The object of the present invention is to provide a production method for a polyolefin, in which catalyst activity is improved, and a polyolefin such as a linear low density polyethylene can advantageously be industrially produced. The present invention relates to a production method for a polyolefin, in which in producing a polyolefin by the polymerization reaction of an olefin using a catalyst, an organohalide is present in the reaction system in an amount of from 0.05 to 10 ppm by weight in terms of the halogen atom as a concentration in a raw material olefin, and 1-hexene for linear low density polyethylene production raw material, containing an organohalide in an amount of from 0.05 to 10 ppm by weight in terms of the halogen atom. | 12-30-2010 |
Patent application number | Description | Published |
20130003097 | RECEIPT PRINTER, RECEIPT PRINTER CONTROL METHOD, AND RECORDING MEDIUM - A receipt printer can print continuously without creating a top margin even when the presence or content of the header changes. The receipt printer has a preprint data storage unit that stores preprint data, a print data acquisition unit that acquires print data, a header evaluation unit that determines if the header data in the acquired print data and the preprint data are the same, and a print control unit that controls a print unit and a paper cutter unit. When the evaluation result is that the data are identical, the print control unit drives the print unit to print the preprint data after printing the portion of the acquired print data not including the header data. If the result is that the data are not-identical, the print unit prints the preprint data after printing the acquired print data. | 01-03-2013 |
20140037356 | Label Printer - A label printer enables drop-in loading of linerless label paper rolls and prevents print defects caused by variation in the label paper transportation and the readhesion of chaff to the label paper. A pair of roll guiding members | 02-06-2014 |
20140092415 | PRINT CONTROL DEVICE, PRINTER, AND CONTROL METHOD OF A PRINT CONTROL DEVICE - Electronic receipt information managed by multiple retailers and vendors can be easily used to analyze sales information and customer purchasing activity. A print control device | 04-03-2014 |