A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 20 mg or less, respectively In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 42% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 42% by weight or less based on the total amount of solid matter of the tackifying resin

Pressure-sensitive adhesive sheet

A first electro-optic display comprises first and second substrates, and an adhesive layer and a layer of electro-optic material disposed between the first and second substrates, the adhesive layer comprising a mixture of a polymeric adhesive material and a hydroxyl containing polymer having a number average molecular weight not greater than about 5000. A second electro-optic display is similar to the first but has an adhesive layer comprising a thermally-activated cross-linking agent to reduce void growth when the display is subjected to temperature changes. A third electro-optic display, intended for writing with a stylus or similar instrument, is produced by forming a layer of an electro-optic material on an electrode; depositing a substantially solvent-free polymerizable liquid material over the electro-optic material; and polymerizing the polymerizable liquid material.

Electro-optic displays, and materials for use therein

A wired circuit board and a producing method thereof are provided which can precisely form an insulating layer and reduce transmission loss with a simple layer structure and also features excellent long-term reliability by preventing the occurrence of an ion migration phenomenon between a ground layer and a positioning mark layer, and the insulating layer to improve the adhesion therebetween and the conductivity of a conductor. A metal supporting board is prepared and a first metal thin film is formed on the metal supporting board. A resist is formed in a pattern and a ground layer and a positioning mark layer are formed on the first metal thin film exposed from the resist at the same time. A second metal thin film is formed over the ground layer and the positioning mark layer, then the resist is removed. An insulating base layer is formed on the first metal thin film including the upper surface of the second metal thin film, thereafter, a conductive pattern is formed on the insulating base layer.

Wired circuit board and producing method thereof

A wired circuit board has a metal supporting board, a metal foil formed on the metal supporting board to have a thickness of less than 2.0 µm, a first insulating layer formed on the metal supporting board to cover the metal foil, and a conductive pattern formed on the first insulating layer.

Wired circuit board and production method thereof

PROBLEM TO BE SOLVED: To provide an adhesive sheet capable of preventing increase in an adhesive force with time in a high temperature environment (that is, having a preventing property against increase in adhesive force and adhesive force stability), having a low adhesive force during high-speed peeling, and having excellent removability, workability and shear strength.SOLUTION: The adhesive sheet has an adhesive layer formed from an adhesive composition on one surface or both surfaces of a support film. An adhesive force ratio (B/A) is less than 2, where A is an adhesive force of the adhesive sheet at a peeling speed of 30 m/min after an adhesive surface of the adhesive layer is stuck to a TAC surface at 23°C for 30 minutes, and B is an adhesive force of the adhesive sheet at a peeling speed of 30 m/min after the adhesive surface of the adhesive layer is stuck to a TAC surface at 70°C and for 1 week.

Adhesive sheet and optical member

PURPOSE: To provide an electrically conductive, transparent protecting film which is excellent in clarity, generates no static electricity on application or peeling and has no defects such as staining of the adhesive. CONSTITUTION: A π electron conjugate system conductive polymer layer 3 is formed on at least one surface of an insulating plastic base film 2, further a peelable adhesive layer 3 on the other surface of the base film so that the whole visible ray transmission exceeds 40% to give the conductive and transparent protecting film. COPYRIGHT: (C)1993,JPO&Japio

Electrically conductive, transparent film for protection purposes

PURPOSE: To provide conductive fiber product having no possibility of deteriorating the electrical conductivity of conductive fibers by wear and heat and no possibility of degrading the electrical conductivity and dust removing performance by laying down and bending of the fibers during use and the process for production thereof. CONSTITUTION: This conductive fiber product 1 has a raised part 3 which consists of the high-conductivity fibers 4 and the low-conductivity fibers 5 having the electrical conductivity lower than the electrical conductivity of the high-conductivity fibers 4. The fiber lengths of the high-conductivity fibers 4 and the low-conductivity fibers 5 in the raised part 3 are the low-conductivity fibers > high-conductivity fibers. At least a part of the fibers are crimped. This product 1 is obtd. by using the high- conductivity and high-thermal shrinkage fibers 4 and low-conductivity fibers 5, either of which has thermal crimps, selecting these fibers in such a manner that the thermal shrinkage is higher to attain the high-conductivity fibers > low-conductivity fibers to obtain the product having the raised part of the fiber lengths approximately equal to each other, then subjecting the product to a heat treatment to shrink the high- conductivity fibers 4 larger than the low-conductivity fibers 5 and to generate crimps in at least either of the fibers. COPYRIGHT: (C)1994,JPO&Japio

Conductive fiber product and its production

PROBLEM TO BE SOLVED: To provide a photocatalytic laminated film which has a sufficiently excellent antiglare property and can give excellent antifouling and photocatalytic properties. SOLUTION: The photocatalytic laminated film is provided with: a protective layer consisting of a first coating material containing a first fluorinated resin, a first cross-linking agent and acrylic resin fine particles; and a photocatalytic layer which is formed on the protective layer and consists of a second coating material containing a second fluorinated resin, a second cross-linking agent and photocatalytic fine particles. The second fluorinated resin is a polydimethylsiloxane-modified fluorinated resin and the first fluorinated resin is the fluorinated resin other than the polydimethylsiloxane-modified fluorinated resin. COPYRIGHT: (C)2009,JPO&INPIT

Photocatalytic laminated film

PROBLEM TO BE SOLVED: To provide a polyurethane foam for collecting heavy metal capable of efficiently adsorbing heavy metals such as chromium, nickel, vanadium, uranium, and cobalt, particularly uranium dissolved in an aqueous solution, particularly in seawater, river, plant waste water or the like SOLUTION: A polyol component for the polyurethane foam comprises a mixed polyol consisting of a polymer polyol (A) which is obtained by a graft polymerization of an acrylonitrile monomer or a methacrylonitrile monomer to a polypropylene oxide, and a polypropylene oxide/polyethylene oxide copolymer (B), wherein (A)/(B) is in a range of 70/30 to 30/70 The polyurethane foam for collecting heavy metal is subjected to film removing treatment, and a nitrile group present in the polyurethane foam is changed to an amidoxime group by hydroxylamine

Polyurethane foam for collecting heavy metal

PROBLEM TO BE SOLVED: To provide a polyurethaneurea foam sheet having touch feeling closely remembling that of natural leather, and excellent in low resilience, mechanical strength, cold resistance and surface strength. SOLUTION: The polyurethaneurea foam sheet is obtained by the following process. A diisocyanate compound is reacted with polyoxypropylene glycol in a hydrophobic organic solvent to obtain a hydroxy-terminated prepolymer, a short-chain diol is then added to the system and an excess amount of 4,4'- diphenylmethane diisocyanate relative to the hydroxy groups in the prepolymer is reacted to produce a solution of an isocyanate group-terminated prepolymer, and a polyoxyalkylene polyol, a catalyst and a foam stabilizer are also added to the system, and the resulting mixed liquid is applied on a release paper followed by heating, expansion and curing. This polyurethaneurea foam sheet thus obtained has a glass transition temperature of ≤-5°C. A synthetic leather characterized by using this sheet as part of the grain side thereof is also provided. COPYRIGHT: (C)2004,JPO

Polyurethaneurea foam sheet and synthetic leather using the same

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