Mitsui Chemicals, Inc.

Akihiro Koide

Yuji Inatomi

Yuko Kobayashi

Tadashi Koike

Daiki Taneichi

Takashi Kozeki

Tomoya Terauchi

Satoru Suda

Toshinori Matsuda

Taisaku Kano

Kenichi Arai

Seiji Kawamoto

Yuuichi Ito

Hideo Usui

A pellicle which has a mask adhesive layer that can be plastic-deformed readily particularly at a temperature at which exposure to light is carried out, rarely provides a residue of an adhesive agent upon the removal of the mask adhesive layer from a mask and has good handling properties, and which can prevent the position gap of a pattern. The pellicle comprises a pellicle frame, a pellicle membrane and a mask adhesive layer containing a mask adhesive agent. The mask adhesive agent comprises 100 parts by mass of a thermoplastic elastomer (A) having a tan &#x3b4; peak temperature of &#x2212;20 to 30 DEG C and 20 to 150 parts by mass of an adhesiveness-imparting resin (B).

Pellicle and mask adhesive agent for use in same

An object of the present invention is to provide a lithographic printing plate with a hydrophilic layer mainly made from resins which has a photosensitivity to the light in near infrared region, on which images can be printed directly with laser beam, requiring no development and wiping off operation, and immediately recovering from ink stains without any difficulties when an ink attaches to non-image areas on printing, and a photosensitive resin composition applied to the printing plate. A lithographic printing original plate having a photosensitive layer formed on a support is characterized in that the surface of the photosensitive layer has a phase-separation structure, and the recessed parts are formed on the surface of a photosensitive layer by the dissolution of one component of photosensitive layer constituting the phase-separation and the surface of the photosensitive layer is changed to have affinity for ink by irradiation with light.

Lithographic printing original plate and lithographic printing plate

Optical recording medium

Provided is an optical recording medium comprising at least a recording layer, a metal reflective layer, a protective layer and a printing layer laminated on a transparent substrate, wherein the printing layer is obtained by curing a UV-curing ink composition and said ink composition contains a compound which has a solubility parameter falling in the range of 7 to 10 and which takes no part in UV curing and does not react with other components contained therein.

Growing community of inventors

Mobara, Japan

Akihiro Koide