A heat conductive paste including silver fine particles having an average particle diameter of primary particles of 40 to 350 nm, a crystallite diameter of 20 to 70 nm, and a ratio of the average particle diameter to the crystallite diameter of 1 to 5, an aliphatic primary amine and a compound having at least one phosphoric acid group. The heat conductive paste includes 1 to 40 parts by mass of the aliphatic primary amine and 0.001 to 2 parts by mass of the compound having at least one phosphoric acid group based on 100 parts by mass of the silver fine particles. The heat conductive paste has a high conductivity.

Electrically conductive masking tapes include an electrically conductive backing and an electrically conductive pressure sensitive adhesive layer. The pressure sensitive adhesive contains an acrylate-based copolymeric matrix, a crosslinker, an electrically conductive filler, and at least one antioxidant. The acrylate-based copolymeric matrix is the reaction product of a polymerizable mixture including at least one first alkyl(meth)acrylate monomer with a homopolymer Tg of less than −50° C., and at least one hydroxyl-functional alkyl(meth)acrylate with a homopolymer Tg of less than −10° C. The electrically conductive tape is capable of being laminated to and cleanly removed from a substrate surface, after being subjected to harsh conditions such as plasma vapor deposition conditions.

A bonding sheet includes a copper foil and sinterable bonding films formed on both faces of the copper foil. The bonding films each contain copper particles and a solid reducing agent. The bonding sheet is used to bond to a target object to be bonded having at least one metal selected from gold, silver, copper, and nickel on a surface thereof. A bonded structure includes: a bonded object having at least one metal selected from gold, silver, copper, and nickel on a surface thereof; a copper foil; and a bonding layer including a sintered structure of copper particles; and the bonded object and the copper foil are electrically connected to each other via the bonding layer.

The present invention provides a filament-bearing tape. The filament-bearing tape extends longitudinally and comprises a flexible substrate having a first edge and a second edge parallel to the first edge, and having top and bottom surfaces. The tape also has a filament that is encompassed in the top surface of the substrate, parallel to the edges of the substrate.

Provided is a novel pressure-sensitive adhesive sheet that is capable of having good light-blocking properties while having an increased refractive index. The pressure-sensitive adhesive sheet provided by the present invention has a pressure-sensitive adhesive layer comprising a black colorant. The pressure-sensitive adhesive sheet has a refractive index of 1.50 or higher.

A problem is to provide a sheet having a pre-sintering layer, the thickness of which following sintering is such as to be capable of relieving stresses. Solution means relate to a sheet comprising a pre-sintering layer. Viscosity at 90° C. of the pre-sintering layer is not less than 0.27 MPa.Math.s. Thickness of the pre-sintering layer is 30 μm to 200 μm.

The PSA sheet provided by this invention has a PSA layer. The PSA layer comprises particles P.sub.HRI. The particles P.sub.HRI present in the PSA layer has a mean particle diameter of less than 100 nm and a standard deviation of 20 nm or less. Here, the mean particle diameter and the standard deviation are determined from a number-based particle distribution by TEM analysis.

A spacer for insulating glass units, includes a polymeric hollow profile extending in the longitudinal direction and including a first and second side wall, a glazing interior wall connecting connects the side walls to one another; an outer wall arranged substantially parallel to the glazing interior wall and connects the side walls to one another; a cavity surrounded by the side walls, the glazing interior wall, and the outer wall, a moisture barrier on the first side wall, the outer wall, and the second side wall of the polymeric hollow body, wherein the moisture barrier include a multi-layer system having a barrier function including a polymeric layer and an inorganic barrier layer, a metallic or ceramic outer adhesive layer, wherein the adhesive layer has a thickness d of at least 5 nm, the adhesive layer is interrupted in the transverse direction by uncoated regions.

The present invention relates to an adhesive composition containing (a) modified cellulose fibers having a cellulose I crystal structure, an average fiber length of 1000 nm or less, and an average fiber diameter of 1 nm or more and 300 nm or less; and (b) a resin. According to the present invention, an adhesive composition having excellent mechanical strength such as shearing adhesive strength can be provided. The adhesive composition of the present invention described above can be utilized in structural adhesion of vehicle assembly products and the like.

Provided are a low-temperature heat-curable adhesive composition for structures which is able to cure at a low temperature in a short time, is reduced in groove defects after open-state standing, and is excellent in rust-preventive property, corrosion resistance, shower resistance, and workability; and a method for producing an automotive structure using the adhesive composition. The low-temperature heat-curable adhesive composition for structures includes (A) an epoxy resin, (B) a micro-encapsulated curing agent, (C) a hygroscopic agent, (D) a viscosity modifier, and (E) a stabilizer. The hygroscopic agent (C) is calcium oxide, which suitably includes both a surface-treated grade and a non-surface-treated grade.