Abstract: Provided is a double-sided pressure-sensitive adhesive tape excellent in impact-absorbing property in the entirety of a wide temperature range, in particular, in a low-temperature region. The double-sided pressure-sensitive adhesive tape of the present invention includes: a base material layer; and pressure-sensitive adhesive layers arranged on both surface sides of the base material layer, wherein an entirety of the double-sided pressure-sensitive adhesive tape has a storage modulus of elasticity E' in a range of from 1.0×105 Pa to 1.0×108 Pa, which is measured at from -25° C. to 120° C. and a frequency of 1 Hz.

Abstract: A double-sided pressure-sensitive adhesive tape includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the acrylic pressure-sensitive adhesive composition contains an acrylic partially polymerized product obtained by polymerizing a monomer component (m1), a monomer component (m2), a cross-linking agent, and a photopolymerization initiator, wherein the monomer component (m2) contains an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms, and a polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more, wherein in the monomer component (m2), a content of the polymerizable monomer whose corresponding homopolymer has a Tg of 0° C.

Abstract: Provided is a double-sided pressure-sensitive adhesive tape, which is excellent in initial pressure-sensitive adhesive property to an adherend, is sufficiently elongated, hardly breaks even when sufficiently elongated, can be smoothly pulled and removed from the adherend under an elongated state, and is excellent in reworking properties.

Abstract: Provided is an adsorption temporary fixing sheet having a sufficient shear adhesive strength in a direction parallel to its surface, and having a weak adhesive strength in a direction vertical to the surface. Also provided is a method of producing such adsorption temporary fixing sheet. The adsorption temporary fixing sheet includes a foam layer including an open-cell structure, wherein, when a silicon chip vertical adhesive strength of a surface of the foam layer after 20 hours at each of such different temperatures as ?40° C., 23° C., or 125° C. is represented by V1 (N/1 cm?), V2 (N/1 cm?), or V3 (N/1 cm?) and when a silicon chip shearing adhesive strength of the surface of the foam layer after 20 hours at each of the different temperatures (?40° C., 23° C., or 125° C.) is represented by H1 (N/1 cm?), H2 (N/1 cm?), or H3 (N/1 cm?), relationships of V1<H1, V2<H2, and V3<H3 are satisfied.

Abstract: Provided is a double-sided pressure-sensitive adhesive tape excellent in reworkability. A double-sided pressure-sensitive adhesive tape according to an embodiment of the present invention includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 100% of 7 N/10 mm or less, and wherein the double-sided pressure-sensitive adhesive tape has a load at an elongation of 500% of 20 N/10 mm or less.

Abstract: A double-sided pressure-sensitive adhesive includes an acrylic pressure-sensitive adhesive, wherein the acrylic pressure-sensitive adhesive is formed from an acrylic pressure-sensitive adhesive composition, wherein the acrylic pressure-sensitive adhesive composition contains an acrylic partially polymerized product obtained by polymerizing a monomer component (m1), a monomer component (m2), a cross-linking agent, and a photopolymerization initiator, wherein the monomer component (m2) contains an alkyl (meth)acrylate having, at an ester terminal thereof, an alkyl group having 4 to 10 carbon atoms, and a polymerizable monomer whose corresponding homopolymer has a Tg of 0° C. or more, and wherein in the monomer component (m2), a content of the polymerizable monomer whose corresponding homopolymer has a Tg of 0° C.

Abstract: Provided is an adsorption temporary fixing sheet having a sufficient shear adhesive strength in a direction parallel to its surface, having a weak adhesive strength in a direction vertical to the surface, and having excellent antistatic performance. The adsorption temporary fixing sheet includes a foam layer including an open-cell structure, and has a surface resistivity of from 1.0×104 to 1.0×1010?/?, wherein, when a silicon chip vertical adhesive strength of a surface of the foam layer after 18 hours at each of such different temperatures as ?30° C., 23° C., or 80° C. is represented by V1, V2, or V3 (N/1 cm2), and when a silicon chip shearing adhesive strength of the surface of the foam layer after 18 hours at each of such different temperatures as ?30° C., 23° C., or 80° C. is represented by H1, H2, or H3 (N/1 cm?), relationships of V1<H1, V2<H2, and V3<H3 are satisfied.

Abstract: Provided is a method of manufacturing an element-mounted substrate having mounted thereon elements with high positional accuracy. The method of manufacturing an element-mounted substrate of the present invention is a method of manufacturing an element-mounted substrate having elements mounted on a substrate, the method including: a step (I) of preparing a temporary fixing material with elements having arrayed thereon the elements by holding one surface of each of the elements on a temporary fixing material; a step (II) of arranging the temporary fixing material with elements on the substrate so that another surface of each of the elements adheres onto the substrate; and a step (III) of peeling the temporary fixing material from the elements adhering onto the substrate.

Abstract: Provided is a silicone foam sheet that expresses excellent bubble removability, that has satisfactory adhesiveness with an adherend and satisfactory sealability, that maintains the expression of these effects even when its thickness is reduced, that preferably expresses a stable modulus of elasticity over a region from a low-temperature region to a high-temperature region, and that suppresses both of its compression set in the low-temperature region and its compression set in the high-temperature region to low levels. Also provided is a method of producing such silicone foam sheet. The silicone foam sheet comprises an open-cell structure having a thickness of from 10 ?m to 3,000 ?m, wherein an open-cell ratio is 90% or more, an average cell diameter of the silicone foam sheet is from 1 ?m to 50 ?m, and 90% or more of all cells therein each has a cell diameter of 80 ?m or less.

Abstract: Provided is an adsorption temporary fixing sheet having a sufficient shear adhesive strength in a direction parallel to its surface, having a weak adhesive strength in a direction vertical to the surface, and having excellent antistatic performance. The adsorption temporary fixing sheet includes a foam layer including an open-cell structure, and has a surface resistivity of from 1.0×104 to 1.0×1010?/?, wherein, when a silicon chip vertical adhesive strength of a surface of the foam layer after 18 hours at each of such different temperatures as ?30° C., 23° C., or 80° C. is represented by V1, V2, or V3 (N/1 cm?), and when a silicon chip shearing adhesive strength of the surface of the foam layer after 18 hours at each of such different temperatures as ?30° C., 23° C., or 80° C. is represented by H1, H2, or H3 (N/1 cm?), relationships of V1<H1, V2<H2, and V3<H3 are satisfied.

Abstract: Provided is a temporary fixing sheet including a silicone foam layer and having excellent antistatic performance and a satisfactory appearance. A temporary fixing sheet includes a silicone foam layer, wherein the silicone foam layer is formed of a silicone resin composition including: an organopolysiloxane having at least two alkenyl groups in a molecule thereof; an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule thereof; a mixture including water and an inorganic thickener; 0.2 part by weight to 1.2 parts by weight of a nonionic surfactant having an HLB value of 3 or more with respect to 1 part by weight of a component; 0.01 part by weight to 0.14 part by weight of a nonionic surfactant having an HLB value of less than 3 with respect to 1 part by weight of the component; a hydrosilylation reaction catalyst; a curing retarder; and a conductive substance.

Abstract: Provided is an adsorption temporary fixing sheet having a sufficient shear adhesive strength in a direction parallel to its surface, and having a weak adhesive strength in a direction vertical to the surface. Also provided is a method of producing such adsorption temporary fixing sheet. The adsorption temporary fixing sheet includes a foam layer including an open-cell structure, wherein, when a silicon chip vertical adhesive strength of a surface of the foam layer after 20 hours at each of such different temperatures as ?40° C., 23° C., or 125° C. is represented by V1 (N/1 cm?), V2 (N/1 cm?), or V3 (N/1 cm?) and when a silicon chip shearing adhesive strength of the surface of the foam layer after 20 hours at each of the different temperatures (?40° C., 23° C., or 125° C.) is represented by H1 (N/1 cm?), H2 (N/1 cm?), or H3 (N/1 cm?), relationships of V1<H1, V2<H2, and V3<H3 are satisfied.

Abstract: Provided is a silicone foam sheet that expresses excellent bubble removability, that has satisfactory adhesiveness with an adherend and satisfactory sealability, that maintains the expression of these effects even when its thickness is reduced, that preferably expresses a stable modulus of elasticity over a region from a low-temperature region to a high-temperature region, and that suppresses both of its compression set in the low-temperature region and its compression set in the high-temperature region to low levels. Also provided is a method of producing such silicone foam sheet. The silicone foam sheet comprises an open-cell structure having a thickness of from 10 ?m to 3,000 ?m, wherein wherein an open-cell ratio is 90% or more, an average cell diameter of the silicone foam sheet is from 1 ?m to 50 ?m, and 90% or more of all cells therein has a cell diameter of 80 ?m or less.

Abstract: A carrier film for transparent conductive films of the invention includes a support and a pressure-sensitive adhesive layer provided on at least one side of the support, wherein the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive composition including: a (meth)acryl-based polymer (A) having a glass transition temperature of ?50° C. or lower and obtained by polymerization of a monomer component containing an alkyl(meth)acrylate and a hydroxyl group-containing monomer; an isocyanate crosslinking agent (B); and a catalyst (C) having an iron active center. The carrier film for transparent conductive films, with which the formation of irregularities on an adherend surface and zipping can be prevented.

Abstract: Provided are a pressure-sensitive adhesive composition that is produced with no tin compound, has a sufficiently long pot life, and can be rapidly crosslinked in the process of forming a pressure-sensitive adhesive layer; and a pressure-sensitive adhesive layer and a pressure-sensitive adhesive sheet each produced using such a pressure-sensitive adhesive composition. A pressure-sensitive adhesive composition, comprising: 100 parts by weight of an acrylic polymer (A) having an active hydrogen-containing functional group; 0.1 parts by weight to 10 parts by weight of an isocyanate crosslinking agent (B); 0.002 parts by weight to 0.5 parts by weight of a catalyst (C) having an iron active center; and a compound (D) capable of undergoing keto-enol tautomerism, wherein the weight ratio (D/C) of the compound (D) capable of undergoing keto-enol tautomerism to the catalyst (C) having an iron active center is from 3 to 70.

Abstract: A solar cell panel end-sealing composition contains a butyl rubber, a polyolefin resin having a silyl group, and a catalyst. The catalyst is at least one of a metal oxide, a metal hydroxide, and a metal complex of a transition element and the solar cell panel end-sealing composition has a flow viscosity at 140° C. of 500 Pa·s or more and 8000 Pa·s or less.

Abstract: Provided is a urethane-based pressure-sensitive adhesive that is extremely excellent in adhesive residue-preventing property. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer, the surface protective film being extremely excellent in adhesive residue-preventing property. Also provided is an optical member or electronic member to which such surface protective film is attached. The urethane-based pressure-sensitive adhesive is a urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyurethane-based resin contains a deterioration-preventing agent.

Abstract: A urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyol (A) contains a polyol (A1) having 3 OH groups and a number-average molecular weight Mn of 8,000 to 20,000. The urethane-based pressure-sensitive adhesive is excellent in reworkability, initial wettability, and transparency, and is preferably excellent in adhesive residue-preventing property, that preferably has a large wetting rate, and that is preferably prevented from showing external appearance unevenness due to orange peel. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer. Further provided is an optical member or electronic member to which such surface protective film is attached.

Abstract: A surface protective film, including: a backing layer; and a pressure-sensitive adhesive layer, in which: the pressure-sensitive adhesive layer includes a polyurethane-based resin; and the surface protective film has a pressure-sensitive adhesive strength for an acrylic plate of 0.5 N/25 mm or less after being attached to the acrylic plate and stored at 70° C. for 1 day. Another surface protective film including: a backing layer; and a pressure-sensitive adhesive layer, in which: the pressure-sensitive adhesive layer includes a polyurethane-based resin; the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition including a polyol (A) having at least two OH groups and a polyfunctional isocyanate compound (B); and the polyfunctional isocyanate compound (B) includes a polyfunctional aromatic isocyanate compound.

Abstract: Provided is a surface protective film that uses a polyurethane-based resin in a pressure-sensitive adhesive layer, the surface protective film being able to achieve both of low contamination property and adhesive residue reduction, and having excellent reworkability, wettability, and transparency as well. Also provided are an optical member and an electronic member each having attached thereto such surface protective film.