Toray Industries, Inc.

E.i. Dupont De Nemours and Company

Masahiro Oguni

Takayoshi Akamatsu

Hiroshi Enomoto

Yoichi Shinba

Futoshi Okuyama

Nobuyuki Kuroki

Tetsuya Hayashi

Yoshio Matsuda

Kazuki Goto

Mitsuru Suezawa

Norimasa Ikeda

Ken Kawamura

Kouichi Sawasaki

Shun-ichi Yanagida

Keiko Sugikawa

The present invention is directed to a polyimide film with a uniform orientation angle in the transverse direction of the film. A polyimide film characterized by the fact that the width of the fabricated film is &#x2267;1.5 m, 2 points positioned inside by 200 mm from both ends of the width of the fabricated film are selected on a linear line in the vertical direction to the machine direction (MD) of the film, 1 point within center part &#xb1;200 mm, and 2 optional points are further selected on a linear line that includes said 2 points within the range of the linear line that connects said 2 points, and the orientation angle (&#x3b8;) is within a range of 90&#xb0;&#xb1;23&#xb0; in at least all of these 8 points.

Polyimide film

The present invention relates to a circuit board including a flexible film provided with an extremely fine circuit pattern, a laminated member for a circuit board, and a method for making a laminated member for a circuit board with excellent productivity. A circuit board of the present invention includes a flexible film and a circuit pattern composed of a metal provided on the flexible film, and dimensional change rate of the circuit pattern is within &#xb1;0.01%. A laminated member for a circuit board of the present invention includes a reinforcing plate, a self-stick, removable organic layer, a flexible film, and a circuit pattern composed of a metal laminated in that order.

Methods for making laminated member for circuit board, making circuit board and laminating flexible film

Circuit board, laminated member for circuit board, and method for making laminated member for circuit board

Plate for waterless lithographic

The present invention is a water-less lithographic printing plate, in which a photosensitive layer and a silicone rubber layer are laminated in this order on a substrate, characterized in that the photosensitive layer contains the reaction product between a compound with at least one each of phenolic hydroxyl groups and non-phenolic hydroxyl groups and a quinonediazide compound, or contains both the reaction product between a compound with at least one of phenolic hydroxyl groups and a quinonediazide compound, and the reaction product between a compound with at least one of non-phenolic hydroxyl groups and a quinonediazide compound. The water-less lithographic raw plate of the present invention is excellent in image reproducibility and printing durability, and so can be favorably and economically advantageously used also in the commercial web offset printing and the newspaper web offset printing where high printing durability is required.

Water-less quinonediazide lithographic raw plate

Growing community of inventors

Nagoya, Japan

Masahiro Oguni