Japan Synthetic Rubber Co., Ltd.

Nippon Paint Compnay, Ltd.

Jsr Corporation

Katsuo Koshimura

Takashi Nishioka

Hozumi Sato

Kazunori Kanda

Hisaichi Muramoto

Koichi Ueda

Tadahiro Kakiuchi

Kenji Yasuda

Tadaaki Tanaka

Takayoshi Tanabe

Noboru Oshima

Noboru Ohshima

Yoshiharu Hashiguchi

Tsukasa Toyoshima

Noboru Shimada

Photosensitive resin composition

A water-developable photosensitive resin composition which comprises:

Water-developable photosensitive resin composition

The present invention provides a photosensitive resin composition which is superior in water-developing properties, resilience, strength of resin plate after exposure, elongation at break, and transparency of resin plate. The composition comprises:

Water-developing photosensitive resin composition

A photosensitive resin composition is provided which is excellent in water developability, impact resilience, resin plate strength after exposure, breaking extension, and resin-plate transparency. The composition comprises:

A photo-sensitive resin composition is provided which contains (1) a particulate polymer of a carboxy-group-containing-diene having a cross-linked structure; (2) a polymer having two or more photo-polymerizable unsaturated groups at its molecular chain terminals, and, optionally, a photo-polymerizable unsaturated group, carboxyl group, hydroxy group, amino group, or epoxy group in side chains, or (2') a non-diene-type polymer having a photo-polymerizable unsaturated group, carboxyl group, hydroxy group, amino group, or epoxy group in side chains, or a low molecular weight linear diene-type polymer; (3) a photo-polymerizable unsaturated monomer; (4) a polymer containing an amino group; and (5) a photo-polymerization initiator. The photo-sensitive resin composition has excellent water-developing capability and shows almost no swelling in water, causing minimal reduction in strength and only minimal dimensional changes during development. Resin plates prepared from the composition possess excellent strength after exposure to light, excellent elongation at break, impact resilience and superb transparency, providing a good characteristic balance of properties.

Water developable photosensitive resin composition

A water-developable photosensitive resin composition which exhibits a small swelling, small reduction in strength and small dimension change when developed with water and which has an excellent balance of characteristics. Said composition comprises (1) a oarboxyl group-containing diene polymer, (2) a hydrogenated diene block polymer in which at least 80% of the double bonds in the recurring unit consisting of conjugated diene has been hydrogenated, (3) a photopolymerizable ethylenically unsaturated monomer, (4) an amino group-containing compound and (5) a photopolymerization initiator.

Photosensitive resin composition comprising a carboxyl group-containing

The present invention provides a resin composition for flexographic printing plate, which is superior in rubber elasticity, hardness and elongation as well as water developability. The resin composition for flexographic printing plate capable of water developing, attains excellent rubber elasticity, hardness and elongation without deterioration of water developability, using as elastic particles copolymer elastic particles having whisker on the particle surface which forms an entanglement between particles.

Resin composition for flexographic printing plate

Growing community of inventors

Yokkaichi, Japan

Katsuo Koshimura