Idemitsu Kosan

Hoechst-Celanese SheU US. total Idemitsu Kosan Mamzen Petro. Tonen Chemical Lee Chang Yung... 

Idemitsu Kosan Company is also developing technology to recover both hydrogen and sulfur. An aqueous solution of ferric chloride is used to... 

Some of the principal Japanese producers of benzene are Mitsubishi Petrochemical Co., Ltd., Nippon Steel Chemical Co., Ltd., Sanyo Petrochemical Ltd., and Idemitsu Kosan Ltd. Until 1967, the main source of Japanese benzene was coal-based. Today, approximately 40—45% of benzene production in Japan is based on pyrolysis gasoline (74), about 40% catalytic reformate, and the remainder coke oven light oil and thermal hydrodealkylation. 

The first production of syndiotactic polystyrene has been credited to research workers at Idemitsu Kosan in 1985 who used cyc/opentadienyl titanium compounds with methyl aluminoxane as catalyst. 

Another important class of electron-transporting emitter is the distyryl-arylenes. These have been explored most extensively by workers at Idemitsu Kosan [31, 32], with the bulk of the published data focusing on a compound designated as DPVBi (see Table 13-2). This class of materials may be considered as small molecule analogs of the PPV polymers, with distyrylbenzene and its derivatives ]33] as prototypical examples. Because of the short conjugation length they tend to be blue emitters. 

The upper limit for passive matrix OLEDs thus depends on many factors, including the reverse current of the diodes, the current delivery of the row drivers, the roll-off in OLED power efficiency, and the brightness and contrast ratio requirements of the application. The practical limit is probably less than VGA resolution (480 rows by 640 x 3 columns, where the factor of 3 reflects the RGB subpixels for color) for power-sensitive portable applications. However, such considerations are less important where a wall-plug is available and one company in Japan (Idemitsu Kosan [190]) has demonstrated full color television using passive OLED arrays. 

R2R A catalytic cracking process using an ultrastable zeolite catalyst with two-stage regeneration. Developed by Institut Frangais du Petrole and used at Idemitsu Kosan s refineries at Aichi and Hokaido. In 1994, 13 existing plants had been converted to this process. 

A pilot plant for free-radical polymerization was developed at Kyoto University (see Fig. 15) and transferred to the industrial site at the Idemitsu Kosan Company (Iwasaki et al. 2006). 

These DSA hosts and DSA amine blue emitter dopants were patented by Idemitsu Kosan Co. Ltd., Japan (Scheme 3.57), and are likely to become a commercial blue emitter candidate [231]. 

SCHEME 3.57 Chemical structures of DSA series patented by Idemitsu Kosan Co. Ltd. 

Patent Numbers and Titles of the U.S. Patents on the OLED Materials Granted to Idemitsu Kosan... 

Table 11.6 lists the U.S. patent numbers and the titles granted to Idemitsu Kosan on the OLED materials. 

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