Basf Se Corporation

Yamamoto Chemicals, Inc.

Naruyoshi Mita

Masaru Kawaguchi

Takaaki Yamazaki

Naoshi Nagai

Mitsuaki Chida

Kengo Otsuka

Tetsuya Ichihashi

Kazuhiko Togashi

Junko Naruse

A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organinc material. Compounds of the general formula: (1) (wherein X is N(R) or an oxygen atom; Ris an n-valent hydrocarbon group; Ris an hydrogen atom or an alkyl; Ris a hydrogen atom, an alkyl, an alkoxy or an acyl; Ris a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and &#x3b3;-rays. 

Polyamine derivative and polyol derivative

A novel polyamine derivative, or polyol derivative, having a piperidylaminotriazine skeleton; salts of such compounds; a process for producing them; an organic material stabilizer comprising any of such compounds; a method of stabilizing an organic material; and a stabilized organic material. Compounds of the general formula: (1) (wherein X is N(R) or an oxygen atom; Ris an n-valent hydrocarbon group; Ris a hydrogen atom or an alkyl; Ris a hydrogen atom, an alkyl, an alkoxy or an acyl; Ris a hydrogen atom or an alkyl; and n is an integer of 3 to 16) are effective in the stabilization of an organic material against deterioration by light, heat, oxygen, ozone and electromagnetic waves, such as X-rays and &#x3b3;-rays. 

A polymer compound suitable for use in organic electroluminescent elements; a process for producing the compound; and an organic electroluminescent element employing the compound. The polymer is a sulfo-containing polymer characterized by having a structure formed by introducing sulfo groups into a polymer comprising repeating units represented by the general formula (1): 

Polymer containing sulfo group and organic electroluminescent element containing the polymer

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Sodegaura, Japan

Naruyoshi Mita