Adeka Corporation

Mitsuo Akutsu

Takahiro Otsuka

Daisuke Sawamoto

Toshihiko Murai

Yasunori Kozaki

An oxime ester compound represented below is useful as a photopolymerization initiator. A photopolymerization initiator including this as an active constituent has high sensitivity and causes no concern about coloration or contamination. (X represents a halogen atom or alkyl group. R, R, and Reach independently represent R, OR, COR, SR, CONRR', or CN, wherein R and R&#x2032; each represent an alkyl group, an aryl group, an aralkyl group, or a heterocyclic group; these groups may be substituted with (a) halogen atom(s) and/or (a) heterocyclic group(s); the alkylene moiety in the alkyl or aralkyl group may be interrupted by (an) unsaturated bond(s), (an) ether bond(s), (a) thioether bond(s), or (an) ester bond(s); and R and R&#x2032; may form a ring. Yrepresents an oxygen, sulfur, or selenium atom; A represents a heterocyclic group; m represents an integer 0-4; p represents an integer 0-5; and q represents 0 or 1.)

Oxime ester compound and photopolymerization initiator containing such compound

A solvent composition contains a tetralin compound (a) represented by the formula (I) and a polyether compound (b) represented by the formula (II). The solvent composition is excellent in safety and almost odorless, having a high capability of dissolving various organic materials, and also excellent in affinity to various substrates. The solvent composition is suitably used for various applications including various kinds of paints, adhesives, coating materials, detergents, and the like.  

Solvent composition

The solvent composition of the present invention comprises diphenylmethane derivative (a) represented in general formula (I) below, and polyether (b) represented by general formula (II) below, and has high safety, low odor-emission, excellent dissolving power for various organic materials, and high affinity for various substrates. (In the formula, n represents 1 or 2, each of x and y independently represents 0, 1, 2, or 3, each of Rand Rindependently represents a Calkyl group, and when a plurality of Ror Rexist, they may be different.) (In the formula, m represents 1 to 10, p is 0, 1, 2, or 3, Prop represents a 1,2-propylene group, each of Rand Rindependently represents a Calkyl group, and when m is 2 or more, methyl groups in 1,2-propylene groups represented by Prop may be randomly located.)

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Saitama, Japan

Mitsuo Akutsu