Asahi Denka Kogyo K.k.

Asahi Denka Kogyo Kabushiki Kaisha

Asahi Kogaku Kogyo Kabushiki Kaisha

Konica Corporation

Kazuo Ohkawa

Seiichi Saito

Hiroyuki Tachikawa

Satoyuki Chikaoka

Mitsuo Akutsu

Tetsuyuki Nakayashiki

Tohru Kobayashi

Hiroshi Tsuchiya

Yasuo Nishi

Nakaya Nakano

Kazuhiko Morio

Hisashi Murase

Aromatic sulfonium compounds, photoacid generators comprising the same, photopolymerizable compositions containing the same, stereolithographic resin compositions, and stereolithographic process

The energy beam curable epoxy resin composition comprising as essential components, (1) specific cationically polymerizing organic substance,(2) energybeam sensitive cation polymerization initiator, (3) cationically polymerizing organic substance except for the specific cationically polymerizing organic substance, described above, (4) radically polymerizing organic compound, and (5) energy beam sensitive radical polymerization initiator. The cured articles resulted from said resin composition, have superior properties and particularlly superior dimensional stability on humidity absorption. Therefore, a stereolithographic resin composition and a stereolithographic method are also provided.

Energy beam curable epoxy resin composition

Stereolithographic resin composition and stereolithographic method

The energy beam curable epoxy resin composition comprising as essential components, (1) specific cationically polymerizing organic substance, (2) energybeam sensitive cation polimerization initiator, (3) cationically polymerizing organic substance except for the specific cationically polymerizing organic substance, described above, (4) radically polymerizing organic compound, and (5) energy beam sensitive radical polymerization initiator. The cured articles resulted from said resin composition, have superior properties and particularlly superior dimensional stability on humidity absorption. Therefore, a stereolithographic resin composition and a stereolithographic method are also provided.

Energy beam curable epoxy resin composition, stereolithographic resin

The present invention relates to a resin composition for optical molding which comprises (a) an actinic radical-curable and cationically polymerizable organic substance and (b) an actinic radiation-sensitive initiator for cationic polymerization. This composition can be cured without being affected by atmospheric oxygen.

Resin composition for optical molding

The present invention relates to a resin composition for optical molding which comprises (a) an actinic radical-curable and cationically polymerizable organic substance and (b) an actinic radiation-sensitive initiator for cationic polymerization. This composition can be cured without being affected by atomospheric oxygen.

An actinic radiation-reactive pressure-sensitive adhesive composition which can be cured in air at a high speed, without irritation and bad smell, comprises

Actinic radiation-reactive pressure-sensitive adhesive composition

An actinic radiation-reactive pressure-sensitive adhesive composition can be cured in air at a high speed, without irritation and bad smell, and comprises

An optical molding composition is used for casting and does not cause irritation to the skin or possess a bad smell. This composition comprises

Optical molding resin composition comprising polythiol-polyene compounds

Disclosed is a photographic element having a support, at least one layer for carrying an image on the support and a protective coated layer cured by an active energy ray thereon, wherein the protective coated layer is one obtained by curing, by irradiation of an active energy ray, an active energy ray curable composition containing a prepolymer containing at least 2 epoxy groups in the molecule and a polymerization initiator which can be activated by the active energy ray; and the active energy ray curable composition is coated on the layer carrying the image; and the layer carrying the image has a water content of 20.0% by weight or less. Disclosed is also a process for preparing the photographic element constituted as the above.

Growing community of inventors

Tokyo, Japan

Kazuo Ohkawa