119results about How to "Full adhesion" patented technology

Disclosed is an adhesive agent characterized by comprising an acrylic copolymer (A) and a cross-linking agent (B), wherein the acrylic copolymer (A) comprises 30 to 77 mass% of a constituent unit (a1) derived from an alkyl acrylate monomer having a C5-20 alkyl group, 20 to 60 mass% of a constituent unit (a2) derived from a (meth)acrylate monomer containing an alicyclic group, 0.01 to 5 mass% of a constituent unit (a3) derived from a monomer containing a tertiary amino group induced from (meth)acrylic acid, and 0.1 to 10 mass% of a constituent unit (a4) derived from a monomer containing a functional group (which is different from a tertiary amino group). The adhesive agent can exhibit a satisfactory adhesion force to a material to be adhered regardless of the level of polarity of the surface of the material, can achieve the smooth cross-linking reaction with the cross-linking agent, and can have a decreased stabilization period without the need of using any heavy metal that has concerns about adverse influence on the environments.

An adhesive sheet of the present invention can be to lower the adhesive strength to the optimal level during pick up or the like after irradiation with UV rays and / or radiation, while maintaining adhesion with adherends before irradiation with UV rays and / or radiation by ensuring that, regardless of the texture on the surface of adherends such as semiconductor wafers and / or substrates, the adhering surface favorably conforms to the texture with preserving enough adhesive and cohesive strength. The adhesive sheet for processing semiconductor wafers and / or substrates comprises a UV- and / or radiation-transmittable base film and an adhesive layer that undergoes a polymerization curing reaction by means of UV rays and / or radiation, wherein the adhesive layer comprises at least a tackifier and a surfactant.

Disclosed is an adhesive tape serving as a dicing tape in a dicing step which has excellent dicing properties and pick-up properties. Also disclosed is a bonding tape exhibiting excellent bonding reliability in a step for bonding a semiconductor element and a supporting member. Specifically disclosed is an adhesive film including a layer wherein an adhesive layer (A) containing an olefin polymer and another adhesive layer (B) are directly joined together. The adhesive film is characterized in that the 180 DEG peel strength between the layer (A) and the layer (B) is not more than 0.7 N / 10 mm.

Provided is a patch which is formed with an adhesive layer that retains a medicine on a support, wherein the adhesive layer contains a thermoplastic elastomer, a non-volatile hydrocarbon oil in an amount of over 50 parts by weight and 800 parts by weight or less with respect to 100 parts by weight of the elastomer, and rivastigmine or a salt thereof, and may further contain a tackifier in an amount of 10 parts by weight or less of the adhesive layer.

This invention provides a pressure-sensitive adhesive sheet for conveying an electrolyte membrane. When processing a membrane electrode assembly (MEA), said pressure-sensitive adhesive sheet can contribute to making it easier to handle a polymer electrolyte membrane being conveyed and preventing deformation and wrinkling of said polymer electrolyte membrane. This pressure-sensitive adhesive sheet for conveying an electrolyte membrane comprises a substrate and a pressure-sensitive adhesive layer positioned on one or both surfaces of said substrate. The pressure-sensitive adhesive layer(s) partially or completely lose(s) adhesiveness upon an external stimulus. In one embodiment, the pressure-sensitive adhesive layer(s) contain(s) thermally expandable microspheres.

Provided is such a pressure-sensitive adhesive tape as described below, which is capable of protecting the uneven surface of a member having unevenness on its surface. The pressure-sensitive adhesive tape brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the member. In addition, even upon deformation of the member protected with the pressure-sensitive adhesive tape by, for example, lamination or continuous winding, the uneven shape does not deform and a base material layer in the pressure-sensitive adhesive tape is not damaged. Also provided is a pressure-sensitive adhesive tape useful as such a surface protective film for a prism sheet as described below, which is capable of effectively protecting, for example, a lens surface of a prism sheet having multiple triangle pole-shaped prisms fixed on its surface. The surface protective film brings together sufficient pressure-sensitive adhesiveness for, and sufficient releasability from, the prism sheet. In addition, when the prism sheet protected with the surface protective film is brought into a state such as a laminated state or a continuously wound state, the emergence of irregularity (indentation) in the external appearance of the prism sheet to which the surface protective film is attached can be suppressed. A pressure-sensitive adhesive tape of the present invention is a pressure-sensitive adhesive tape including a base material layer, a first pressure-sensitive adhesive layer, and a second pressure-sensitive adhesive layer in the stated order, in which: the base material layer contains a thermoplastic resin; the storage modulus of the first pressure-sensitive adhesive layer is higher than the storage modulus of the second pressure-sensitive adhesive layer.

The present invention relates to a photocurable resin composition which contains (A) a compound having a (meth)acryloyl group, (B) a photopolymerization initiator and (C) a plasticizer, and wherein the content of the photopolymerization initiator (B) is 4.0-10% by mass.

The present invention provides a method for preparing an electroless nickel coating composition that includes (a) coating a substrate with an electroless nickel coating to provide a coated substrate; and (b) subjecting the coated substrate to a heating protocol comprising heating to a temperature in a range from about 550 DEG C. to about 700 DEG C. for a period of from about 7 to about 30 hours. An article made from the method is also provided.

Disclosed is a biaxially stretched polyester film which can be adhered on a solvent-free ionizing-radiation-curable resin (e.g., a lens layer) readily and has high antistatic properties. The biaxially stretched polyester film comprises a film and a coating layer applied on at least one surface of the film, wherein the coating layer comprises a polyurethane resin (A) and a cationic high-molecular-weight antistatic agent (B), and wherein the polyurethane resin (A) contains a compound produced by quaternizing a tertiary amino group in a chain-extending agent having the tertiary amino group in the molecule and a polycarbonate polyol as constituent units.

A positive photosensitive composition which comprises (A) an alkali-soluble organic polymer substance having a phenolic hydroxyl group, (B) a light-heat conversion substance absorbing an infrared ray of an image exposure light source and converting it to heat, (C) at least one resin selected from the group consisting of a vinyl pyrrolidone / vinyl acetate copolymer and other specific polymers or resins, and (D) a dissolution inhibiting agent. The positive photosensitive composition does not require burning, provides necessary and sufficient adhesion in an application under a condition of a humidity in a working room of 25 to 60 %, allows the development which retains high sensitivity and is free of a residue, forms an image having a sharp outline, and provides a resist film which is so hard that its resistance to flawing is improved in the handling before development.

The invention provides a sticking layer according to resin, that fully adhesion of the resin to the copper or copper-alloy can be obtained, and the problem of ion migration caused by dendrite in the tin or tin-alloy layer before, with adhesion improvement to the resin of high glass transition temperature. The invention also provides the manufacturing method which uses the sticking layer. The sticking layer according to the resin is used to bond resin and copper or copper-alloy layer, which is also constituted by copper or copper-alloy. The sticking layer according to the resin is made of a metal layer which has great particles of copper or copper-alloy concentrated, with space existed among particles and coralliform of complex micro-holes existed on the surface. The average diameter of the micro-holes is from 10nanometer to 200nanometer, and more than two micro-holes is exsited on the surface of the metal layer per 1 micron2 in average.

Provided is a light transmission body which has a good balance among excellent durability, wear resistance, lubricity and excellent adhesiveness. A light transmission body according to one embodiment of the present invention comprises a fiber strand and a covering layer. The fiber strand is configured of: a core that is formed of glass; and a cladding that covers the outer circumferential surface of the core and is formed of glass. The covering layer is composed of a plurality of alkyl groups which cover the outer circumferential surface of the cladding and are not substituted by fluorine, and each alkyl group is bonded to the cladding via a siloxane bond.

Provided is a thermoplastic polymer composition which has excellent flexibility, mechanical properties, and molding processability, can adhere to a ceramic, a metal, or a synthetic resin without performing a primer treatment or the like, and has high adhesiveness even if exposed to a high-temperature environment, and also provided is a molded article obtained using the thermoplastic polymer composition. Specifically, provided is a thermoplastic polymer composition comprising: 100 parts by mass of (A) a thermoplastic elastomer which is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block containing a conjugated diene compound unit or a hydrogenated product thereof; 1 to 100 parts by mass of (B) a polyvinyl acetal resin having a glass transition temperature of 80 to 130 C; and 0.1 to 300 parts by mass of (C) a softener.

This invention provides a method for manufacturing a fuel-cell membrane electrode assembly. Said method makes it easy to handle a polymer electrolyte membrane, prevents deformation and wrinkling of said polymer electrolyte membrane, and allows efficient assembly of said polymer electrolyte membrane, a gas diffusion electrode, and / or a gas diffusion layer. This method for manufacturing a fuel-cell membrane electrode assembly containing a first gas diffusion electrode, a polymer electrolyte membrane, and a second gas diffusion electrode includes the following: conveying the polymer electrolyte membrane, the first gas diffusion electrode, and / or the second gas diffusion electrode by adhering same to a pressure-sensitive adhesive sheet that loses adhesiveness upon an external stimulus; and detaching the pressure-sensitive adhesive sheet by applying said external stimulus thereto so as to reduce the adhesiveness thereof.

To provide an epoxy resin composition which can form a cured material having low dielectric constant and low dielectric loss tangent in a radio frequency region, and a film obtained by using the epoxy resin composition. An epoxy resin composition comprising: (A) at least one epoxy resin selected from the group consisting of a novolac epoxy resin having a phenolic skeleton and a biphenyl skeleton, and a bifunctional linear epoxy resin having a weight average molecular weight of 10,000 to 200,000 and having a hydroxyl group; and (B) a modified phenolic novolac having a phenolic hydroxyl group, at least part of which is esterified with a fatty acid.