Mitsubishi Chemical Corporation

Mitsubishi Kasei Corporation

Takumi Nagao

Satoru Imamura

Tetsuo Murayama

Shuichi Maeda

Yutaka Kurose

Tameichi Ochiai

Takako Tsukahara

Toshiyuki Urano

Masako Takeuchi

Etsuko Hino

Chiyoko Fukabori

A photopolymerizable composition comprising (A) an ethylenically unsaturated compound, (B) a cyanine dye and (C) a photopolymerization initiator, wherein the cyanine dye of component (B) is a cyanine dye of a structure having hetero atoms connected via a polymethine chain, and the polymethine chain has at least one substituent of the following formula (.alpha.): ##STR1## wherein Q.sup.1 and Q.sup.2 are optional substituents, which may be connected to form a ring.

Photopolymerizable composition, photopolymerizable lithographic printing

An azo metal chelate compound of an azo compound of the formula (I) with a metal: ##STR1## wherein A is a residue forming a heterocyclic ring together with the carbon atom and the nitrogen atom to which it is bonded, X is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, R.sup.1 is an alkyl group which may be substituted, an aryl group which may be substituted, an alkenyl group which may be substituted, or a cycloalkyl group which may be substituted, Y is a hydrogen atom or a cation, and n is an integer of from 1 to 3.

Azo metal chelate compound

Metal chelate compound and optical recording medium using the compound

Metal chelate of a monoazo compound and optical recording medium using it

Disazo metal chelate compounds for optical recording media

Growing community of inventors

Yokohama, Japan

Takumi Nagao