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: The present invention provides a heat-foamable sheet that foams uniformly and omnidirectionally, a method for producing the heat-foamable sheet, and a foam filling member including the heat-foamable sheet. A heat-foamable sheet having a horizontal to vertical ratio of 1.5 or less when heated at 160° C. for 20 minutes is obtained by a method for producing a heat-foamable sheet including: an extrusion step of extruding a heat-foamable material containing a polymer and a foaming agent into an isotropy-containing shape including an isotropic portion of a generally arc shape; and a sheet-forming step of forming the heat-foamable material that is extruded in the extrusion step into a sheet shape.

Abstract: A pressure-sensitive adhesive double-coated sheet comprising a substrate, a pressure-sensitive adhesive layer (A) formed on one side of the substrate and a pressure-sensitive adhesive layer (B) formed on the other side of the substrate, wherein at least the pressure-sensitive adhesive layer (A) is formed with a pressure-sensitive adhesive comprising a butyl rubber as base material, and after the pressure-sensitive adhesive double-coated sheet is allowed to stand at 60° C. for five days while being placed between a moisture vapor-permeable waterproof sheet attached to the adhesive layer (A) and an aluminum plate attached to the adhesive layer (B), an expansion coefficient of the moisture vapor-permeable waterproof sheet is 0.5% or less. The pressure-sensitive adhesive double-coated sheet can allow the moisture vapor-permeable waterproof sheet to less expand over time when attached between the moisture vapor-permeable waterproof sheet and the adherend in a waterproof airtight structure of a construction.

Abstract: A pressure-sensitive adhesive double-coated sheet comprising a substrate, a pressure-sensitive adhesive layer (A) formed on one side of the substrate and a pressure-sensitive adhesive layer (B) formed on the other side of the substrate, wherein at least the pressure-sensitive adhesive layer (A) is formed with a pressure-sensitive adhesive comprising a butyl rubber as base material, and after the pressure-sensitive adhesive double-coated sheet is allowed to stand at 60° C. for five days while being placed between a moisture vapor-permeable waterproof sheet attached to the adhesive layer (A) and an aluminum plate attached to the adhesive layer (B), an expansion coefficient of the moisture vapor-permeable waterproof sheet is 0.5% or less. The pressure-sensitive adhesive double-coated sheet can allow the moisture vapor-permeable waterproof sheet to less expand over time when attached between the moisture vapor-permeable waterproof sheet and the adherend in a waterproof airtight structure of a construction.

Abstract: A corrosion preventive material contains zinc and is applied to the surface of a metal product for preventing corrosion of the product. The material consists essentially of a base material of synthetic resin and 65% or more zinc powder by weight dispersed in the base material, the zinc powder containing 25% or more zinc powder by weight having a grain diameter of or above 150 .mu.m. Alternatively, the corrosion preventive material consists essentially of a base material of synthetic resin and 45% or more zinc powder by weight dispersed in the base material, the zinc powder containing 90% or more zinc powder by weight having a grain diameter of or above 150 .mu.m.

Abstract: A tape primer composition that forms a primer coat between a polyethylene film or sheet support and an overlying butyl rubber base adhesive layer is described, said primer composition consisting essentially of a butyl rubber, a polyisocyanate compound, and an organic solvent.