Sumitomo Chemical Company, Limited

Sumitomo Chemical Companylimited

Yoshiaki Tsubata

Shuji Doi

Makoto Kitano

Takanobu Noguchi

Chizu Sekine

Takahiro Ueoka

Jun Oguma

Koichi Fujisawa

Akiko Nakazono

Masayoshi Minai

Yukari Fujimoto

Katsumi Agata

Akihiro Ono

Takayuki Higashii

Shigeru Sasaki

Kyoko Yamamoto

Naoyuki Takano

Kayoko Ueda

Masato Ueda

Toshihiro Ohnishi

Toshiaki Sasada

Makoto Anryu

Satoshi Kobayashi

Daisuke Fukushima

Hideyuki Ikehira

Tsutomu Matsumoto

Takakazu Saito

Takashi Kuragano

Seiichirou Yokoya

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 dendrimer compound characterized by comprising a core represented by the following formula (1-1), (1-2), (1-3), or (1-4) and at least one kind of dendritic structure selected among dendritic structures represented by the following formulae (3) and (4). 

Dendrimer compound and organic luminescent device employing the same

A polymer compound comprising at least one repeating unit selected from the group of repeating units shown by formula (1) or formula (2),  

Polymer compound and polymer light-emitting device using the same

A polymer compound comprising a constitutional unit of the following formula (1): (wherein, P represents an integer of 1 to 4, Q represents an integer of 0 to 4. Rand Rrepresent each independently an alkyl group, alkoxy group, alkylthio group, aryloxy group, arylthio group, arylalkyl group, arylalkoxy group or arylalkylthio group, when there exist a plurality of R's, these may be the same or different, and when there exist a plurality of R's, these may be the same or different. Arrepresents an unsubstituted or substituted arylene group or an unsubstituted or substituted di-valent heterocyclic group, and Arrepresents an unsubstituted or substituted aryl group or an unsubstituted or substituted mono-valent heterocyclic group. A plurality of Ar's and Ar's may each be the same or different.).

Anthracene polymer compound and light emitting device using the same

A polymeric fluorescent substance exhibiting fluorescence in the solid state, having a polystyrene reduced number-average molecular weight of 1&#xd7;10to 1&#xd7;10, and comprising one or more repeating units of formula (1) and one or more repeating units of formula (8),&#x2014;Ar&#x2014;(CR&#x2550;CR)&#x2014;&#x2003;&#x2003;(1)&#x2014;Ar&#x2014;(CR&#x2550;CR)&#x2014;&#x2003;&#x2003;(8)wherein Arrepresents a specific arylene or a divalent heterocyclic compound group, and Arrepresent an arylene or a divalent heterocyclic compound group other than Ar. By using the polymeric fluorescent substance, a high performance polymer LED can easily be obtained.

Polymeric fluorescent substance and polymer light-emitting device using the same

Provided is a polymer comprising a repeating unit represented by formula (1), wherein, Arepresents a divalent group in which the bond distance ratio (bond distance of C(&#x3b1;)-A/bond distance of C(&#x3b1;)-C(&#x3b2;)) is 1.10 or more; R, R, R, R, R, and R, each independently represent a hydrogen atom, alkyl group, alkyloxy group, aryloxy group, arylalkyloxy group, etc. The polymer is useful as a light-emitting material, a charge transporting material, etc.

Polymer and polymer light-emitting device using the same

A method for producing a polymeric fluorescent substance characterized by comprising the step of contacting with an alkali a crude polymeric fluorescent substance that is fluorescent in a solid state and has a polystyrene equivalent number average molecular weight of 10to 10and one or more repeating units represented by the following formula (1):&#x2014;Ar&#x2014;(CR&#x2550;CR)&#x2014; &#x2003;&#x2003;(1)wherein Aris an arylene group or heterocyclic compound group that is unsubstituted or substituted by one or more substituents; Rand Reach independently represent a group selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, a heterocyclic compound group and a cyano group, in which the aryl group and the heterocyclic compound group is optionally substituted by another substituent; and n is 0 or 1.

Polymeric fluorescent material, process for producing the same, and polymeric luminiscent element

Provided is a polymeric fluorescent substance comprising a copolymer which has a substituent containing a specific aromatic amine structure below in the side chain, wherein Xis a divalent hydrocarbon group; Aris an arylene group or the like; Arand Arindependently represent an aryl group or the like. The polymeric fluorescent substance is preferably used for a light emitting layer of a polymer LED having high luminance and high light emitting efficiency.

Provided is a polymer compound having a polystyrene reduced number average molecular weight of 10-10, and comprising a repeating unit represented by the below formula (1-1) or (1-2),wherein Ring A, Ring B, Ring C, or Ring D each independently represent an aromatic ring, and X represents S or O. The compound is usable as a light-emitting material, a charge transporting material, etc.

Polymer compound and polymer light emitting device using the same

A block copolymer comprising two or more blocks and having fluorescence in the solid state, wherein blocks thereof may be the same or different, and in each of the blocks, one or more kinds of repeating units are bonded through conjugated bonds, and bonding between the blocks is made by junction unit having conjugated bond, and the polystyrene reduced number average molecular weight of at least one block is 1&#xd7;10to 1&#xd7;10.

Block copolymer and polymeric luminescent element

Provided is a bis(diphenylvinyl)arene compound having a reactive functional group on phenyl group, represented by below formula (1),wherein, Ar is an arylene group and has one or more substituents; R-Reach independently represent a hydrogen atom, a halogen atom, cyano group, nitro group, etc., and at least one of R-Ris a halogen atom, etc. The arene compound has sufficient solubility in an organic solvent and excellent reactivity.

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Tsukuba, Japan

Yoshiaki Tsubata