Adeka Corporation

Koichi Kimijima

Kiyoshi Murata

Daisuke Sawamoto

Takeo Oishi

Takashi Yamada

Naomi Sato

Hirokatsu Shinano

Taiki Mihara

Yasunori Kozaki

Nobuhide Tominaga

An oxime ester compound represented by general formula (I): wherein R, R, and Reach independently represent R, OR, COR, SR, CONRR, or CN; R, R, and Reach independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, Rand Reach independently represent R, OR, SR, COR, CONRR, NRCOR, OCOR, COOR, SCOR, OCSR, COSR, CSOR, CN, a halogen atom, or a hydroxyl group; and a and b each independently represent 0 to 3.

Oxime ester compound and photopolymerization initiator containing the same

A novel compound having satisfactory sensitivity (base generating performance), a photosensitive resin composition containing the compound as a photo-initiator, and a cured product of the composition are provided. Specifically, a compound represented by general formula (1) (compound (1)), a photosensitive resin composition containing (A) a photo-initiator including at least one compound (1) and (B) a photosensitive resin are provided. Preferred are the compound (1) in which Ris an unsubstituted or substituted C6-C20 aromatic hydrocarbon group, the compound (1) in which at least one of R, R, R, R, R, R, and Ris nitro, and the compound (1) in which n is 0.  The symbols in general formula (1) are as defined in the description.

Compound and photosensitive resin composition

An alkali developable photosensitive resin composition contains (J) a photopolymerizable unsaturated compound having a structure resulting from the addition reaction of (B) a compound having a &#x3b2;-diketone moiety or a compound having a &#x3b2;-ketoester group to the (meth)acryloyl group of (A) a compound having at least two (meth)acryloyl groups and a hydroxyl group and subsequent esterification of the hydroxyl group of the resulting addition product with (C) a polybasic acid anhydride. The compound having a &#x3b2;-diketone moiety is preferably a novel &#x3b2;-diketone compound represented by general formula (I): wherein Ris a C1-C20 alkyl group; Rrepresents R, OR, COR, SR, CONRR, or CN; R, R, and Rare each hydrogen, a C1-C20 alkyl group, etc.; a is 0 to 3; and b is 0 to 4.

Alkali-developable photosensitive resin composition and &#x3b2;-diketone compound

An novel epoxy compound is represented by the general formula (I) and has a benzo- or naphtho-cycloalkane skeleton: X, Y, and Z each independently represent an alkyl group having 1-10 carbon atoms and optionally substituted with a halogen atom, an aryl group having 6-20 carbon atoms and optionally substituted with a halogen atom, an arylalkyl group having 7-20 carbon atoms and optionally substituted with a halogen atom, a heterocyclic group having 2-20 carbon atoms and optionally substituted with a halogen atom, or a halogen atom; k represents a number of 0-4; p represents a number of 0-8; r represents a number of 0-4; n represents 0-10; x represents a number of 0-4; y represents a number of 0-4; a sum of x and y is 2-4; and an optical isomer that exists when n is not 0 may be of any type.

Epoxy compound, alkali-developable resin composition, and alkali-developable photosensitive resin composition

A novel compound is a highly-sensitive photopolymerization initiator with excellent stability, low sublimability, excellent developability, and high transmittance in the visible region. It efficiently absorbs, and is activated by, near-ultraviolet rays such as at 365 nm. Also provided are a photopolymerization initiator and a photosensitive composition using such compound. An oxime ester compound is represented by the following general formula (I), a photopolymerization initiator containing the same, and a photosensitive composition containing the photopolymerization initiator and a polymerizable compound having an ethylenically unsaturated bond: Rand Reach represent R, COR, CONRR, CN, etc.; R, R, and Reach represent a Calkyl group, etc.; Rand Reach represent R, OR, COR, CONRR, OCOR, CN, a halogen atom, etc.; a and b each represent an integer 0-4; X represents an oxygen atom, a sulfur atom, etc.; and Rrepresents OH, COOH, or a group represented by general formula (II).

An oxime ester compound represented by general formula (I): wherein Rand Reach independently represent R, OR, COR, SR, CONRR, or CN; R, R, and Reach independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an arylalkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, Rand Reach independently represent R, OR, SR, COR, CONRR, NRCOR, OCOR, COOR, SCOR, OCSR, COSR, CSOR, CN, a halogen atom, or a hydroxyl group; a and b each independently represent 0 to 4; X represents an oxygen atom, a sulfur atom, a selenium atom, CRR, CO, NR, or PR; R, R, R, and Reach independently represent R, OR, COR, SR, CONRR, or CN.

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Tokyo, Japan

Koichi Kimijima