Nippon Kayaku Kabushiki Kaisha

Makiko Kogo

Hiroyuki Matsumoto

Masahiro Hirano

Noriko Kajiura

Yutaka Ishii

Masahiro Imaizumi

Naoyuki Ochi

Eiichi Nishihara

Toyohumi Asano

Masaru Kudou

Kouta Yoshii

Sumio Itimura

The present invention relates to an ammonium salt or a sodium salt of an anthrapyridone compound represented by the following the formula (1): and an ink composition containing these; said compound has a hue with high vividness and high brightness suitable for inkjet recording; recorded matters recorded with an ink composition containing said compound is excellent in fastnesses such as light fastness and ozone fastness, and also particularly water fastness.

Ink composition and colored product

To provide a photopolymerization initiator having an extremely low possibility of contaminating liquid crystals, and a liquid crystal sealing material using such a photopolymerization initiator. A liquid crystal sealing material comprising (a) a reactive photopolymerization initiator represented by the general formula (1) and (b) a photocurable resin: (wherein R1 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; R2 represents a divalent straight chain, branched or cyclic lower alkylene group having 1 to 10 carbon atoms or an arylene group; Ar represents an arylene group; R3 represents a hydrogen atom or a methyl group; X and Y respectively represent O or S; and Z is a hydroxyl group or a morpholino group).

Liquid crystal sealing material and liquid crystal display cell using same

Growing community of inventors

Kita-ku, Japan

Makiko Kogo