Mitsui Chemicals, Inc.

Hiroshi Mase

Koji Hirota

Sumio Hirose

Yuko Suzuki

Katsuru Matsumoto

Takayuki Sanada

Provided is an antimicrobial raw material having excellent antibacterial and corrosion-resistance properties, which can be directly formed as a film even on a plastic substrate with low heat-resistance or a substrate whereof the color or properties are likely to change due to heat, and this can be achieved at relatively low cost. The antimicrobial raw material is a laminated structure which comprises a substrate layer and a copper-tin alloy layer disposed on the substrate layer, and which has a thickness ranging from 5 nm to 200 nm. The substrate layer is made of resin, natural fiber, or paper, the resin having the deflection temperature under load being 115&#xb0; C. or lower when measured in accordance with ASTM-D648-56 under a load of 1820 kPa. The copper-tin alloy layer contains over 60 at % but no more than 90 at % of copper and 10 at % or more but less than 40 at % of tin.

Antimicrobial raw material and method for manufacturing the same, and antimicrobial material

Provided an antimicrobial substance that includes a base material layer, and a copper-tin alloy layer 5-200 nm in thickness disposed on the base material layer, the copper-tin alloy layer containing copper in an amount of more than 60 atomic percent but not more than 90 atomic percent, and containing tin in an amount of not less than 10 atomic percent but less than 40 atomic percent. The copper-tin alloy layer includes a CuSncrystalline phase, and a CuSn crystalline phase. The Q value (&#x3a9;/(nm&#xb7;Cu atomic percent)), which is derived by dividing the sheet resistance (&#x3a9;) of the copper-tin alloy layer by the thickness of the copper-tin alloy layer and the copper content (Cu atomic percent), is 1.5&#xd7;10-6.0&#xd7;10.

Antimicrobial substance, method for producing same, and antimicrobial material

A lithographic printing original plate, a lithographic printing plate using the lithographic printing original plate and a process for producing the lithographic printing plate are disclosed. The lithographic printing original plate has, on a substrate, a photosensitive layer made of a crosslinked polymer comprising a hydrophilic polymer, a crosslinking agent and a light absorbing compound or comprising a hydrophilic polymer, a crosslinking agent, a light absorbing compound and a hydrophobic polymer, and has properties that the photosensitive layer is changed from ink-repellent to ink-receptive by irradiation with a light.

Growing community of inventors

Kisarazu, Japan

Hiroshi Mase