Mitsui Chemicals, Inc.

Tomoya Terauchi

Hiroyuki Takei

Takashi Yamamoto

Yuko Kobayashi

Kenji Uchiyama

Hiroshi Matsuoka

Yuji Inatomi

Hirotaka Uosaki

Yuji Emura

Akihiro Koide

Linwood Blanton Muire, Iii

Toshinori Matsuda

Keiichi Ishikawa

Hironobu Hashimoto

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

A binder resin for toner which is excellent in low-temperature fixing property and offset resistance as well as smear resistance, while responding to the demand of the market from the perspectives of environmental protection, such as being free from a bisphenol A structure and tin, and a toner using the same. The binder resin for toner can be obtained using a catalyst containing titanium or germanium, preferably comprises the structure derived from branched or alicyclic alcohols, and comprises the structure derived from terephthalic acid as the acid component, which represents greater than or equal to 60 mol % with respect to the number of moles of all acid components, and a toner using the same.

Binder resin for toner and toners

A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.

Binder resin for toner and toner

A resin composition for toners which comprises: (A) a wax composition comprising an ethylene polymer having a melt index of from 0.1 to 100 as measured at 190&plusmn;0.4&deg; C. and a paraffin wax having a melting point of from 70&deg; C. to 120&deg; C. or a Fisher-Tropsch wax having a melting point of from 70&deg; C. to 120&deg; C.; and (B) a binder resin for toners.

Resin composition for toner and toner

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Sodegaura, Japan

Tomoya Terauchi