Sumitomo Chemical Company, Limited

Takashi Kuragano

Makoto Anryu

Yoshiaki Tsubata

Toshiaki Sasada

Yoshihiro Kawada

Daisuke Fukushima

Yoshinobu Jin

Tomoyasu Yoshida

Takakazu Saito

Tomohiro Araki

Shin-ichiro Souma

Yoshiaki Tubata

Shin-Ichiro Souma

A composition which is useful for production of a light emitting device excellent in light emission efficiency is provided. In particular, provided is a composition containing a compound represented by formula (1) and a phosphorescent compound, wherein Rand Reach independently represent a substituent, nrepresents an integer of 1 to 14, and Arrepresents an arylene group or a divalent heterocyclic group, and at least one of one or more groups Aris a group represented by the formula (1-A), wherein the variable groups Rto R, R, and Rare as defined in the specification. 

Composition and light emitting element device using the same

A polymer compound is provided having a constitutional unit represented by the following formula (1): wherein: Rand Rrepresent an alkyl group, an aryl group, a mono-valent aromatic heterocyclic group, an alkoxy group or an aryloxy group, and Arrepresents an arylene group or a di-valent condensed polycyclic aromatic heterocyclic group.

Polymer compound and light-emitting element using the same

The present invention relates to a pyridazinone compound of the formula (I): wherein Rrepresents hydrogen, a Calkyl group, and the like, Rrepresents halogen, a cyano group, a nitro group, a Calkoxy group, and the like, G represents hydrogen, and the like, Z represents halogen, a cyano group, a nitro group, a Calkyl group, and the like, and n represents an integer of 1-5 useful as an active ingredient in a herbicide and a noxious arthropod controlling agent. 

Pyridazinone compound and herbicide and noxious arthropod controlling agent comprising it

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Tsukuba, Japan

Takashi Kuragano