Adeka Corporation

Tomoya Tamachi

Tomoyuki Ariyoshi

Naomi Sato

Kentaro Kimura

Takeo Oishi

Shohei Fujita

Yukiko Kanehara

Yoko Komiyama

Takayuki Ikaga

An oxime ester compound represented by general formula (I), wherein Rto Rare as defined in the description, and n is 0 or 1; a photopolymerization initiator containing the compound; a photosensitive composition, alkali-developable photosensitive resin composition, and colored alkali-developable photosensitive resin composition containing the photopolymerization initiator; and a cured product of these compositions are provided. The compound is useful as a high-sensitivity photopolymerization initiator that has good stability and low sublimability and that efficiently absorbs, and is activated by, near-ultraviolet light, e.g., at 365 nm. 

Oxime ester compound and photopolymerization initiator containing said compound

Provided is an &#x3b1;-aminoalkylphenone compound that has good stability and low sublimability, efficiently generates radicals when irradiated with a bright line at 365 nm (I line) or the like, and is useful as a polymerization initiator to be used in a radically polymerizable composition. The &#x3b1;-aminoalkylphenone compound is represented by Formula (I) mentioned below. In Formula (I) mentioned above, it is preferable that Ris a nitro group, an alkoxy group having 1 to 12 carbon atoms, or an alkoxycarbonyl group having 1 to 12 carbon atoms. The &#x3b1;-aminoalkylphenone compound can be preferably used in a polymerization initiator.

Polymerization initiator and radically polymerizable composition containing same

Provided are a salt compound, cationic polymerization initiator and cationically polymerizable composition, which have a superior acid-generating capacity and high sensitivity, and are free from coloration. The salt compound is represented by the following general Formula (1): 

Salt compound, cationic polymerization initiator and cationically polymerizable composition

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Tokyo, Japan

Tomoya Tamachi