A pressure sensitive adhesive sheet may include a base material and a hot-melt pressure sensitive adhesive layer which contains a softener, and further include a barrier layer disposed between the base material and the hot-melt pressure sensitive adhesive layer, the barrier layer containing at least one selected from the group consisting of a polyester-based resin, a polyurethane-based resin, and a polyolefin-based resin. The polyester-based resin may be at least one of a polyester resin or a modified polyester resin.

The present disclosure relates to a bonding composition for an electrical steel sheet, and a steel sheet and a laminate employing same, wherein the bonding composition for an electrical steel sheet may comprise an adhesive resin and a bonding additive, the adhesive resin may be polyurethane, and the bonding additive may comprise a coupling agent including an amino silane.

In-situ polymerized polymer film facilitates improved paint film appliques with reduced defects. The paint film appliques comprise the in-situ polymerized polymer film as a carrier layer and at least one color layer assembled as a laminate, optionally further comprising at least one topcoat layer on one major surface of the laminate and an adhesive layer on the other major surface of the laminate.

A polymer foam adhesive tape including: a substrate film; a polymer foam layer provided on one surface of the substrate film; a first adhesive layer provided on the polymer foam layer; and a second adhesive layer provided on the other surface of the substrate film, in which the polymer foam adhesive tape has a minimum compression load of 30 g to 300 g, a compression rate of the polymer foam adhesive tape is increased in proportion to a linear function according to an increase in pressure when pressure, which is equal to or more than the minimum compression load, is applied, and a thickness recovery rate of the polymer foam adhesive tape after pressure is removed is increased in proportion to a linear function as time passes.

The aim is to provide an adhesive tape that effectively protects an electronic construction from permeants, especially water, and that at the same time has good gap-filling qualities. To solve this problem an adhesive tape is proposed that has in the following order:a carrier layer without barrier effect at least towards water and with a WVTR of at least 1 g/(m.sup.2*d) (38 C., 90% relative humidity, 50 m layer thickness);a layer comprising at least one getter material capable of sorbing at least water;a water barrier ply; anda layer of pressure-sensitive adhesive, where the carrier layer bears an outward-facing release layer and/or the layer of pressure-sensitive adhesive is lined with a release liner which has a release layer lying on the layer of pressure-sensitive adhesive.

A support film for a tape material is provided that includes a film-shaped support formed of polyurethane, a barrier layer containing an aromatic isocyanate-based polyurethane and a layered inorganic compound and formed on one surface of the support, and an overcoat layer containing a polyvinyl alcohol or an ethylene-vinyl alcohol copolymer and an organometallic chelating agent.

A support film for a tape material, includes a film-shaped support formed of polyurethane; and a barrier layer containing an aromatic isocyanate-based polyurethane and a layered inorganic compound and formed on one surface of the support.

In-situ polymerized polymer film facilitates improved paint film appliques with reduced defects. The paint film appliques comprise the in-situ polymerized polymer film as a carrier layer and at least one color layer assembled as a laminate, optionally further comprising at least one topcoat layer on one major surface of the laminate and an adhesive layer on the other major surface of the laminate.

In-situ polymerized polymer film facilitates improved paint film appliques with reduced defects. The paint film appliques comprise the in-situ polymerized polymer film as a carrier layer. The carrier layer is colored and, preferably defect-free.

A barrier coating is used in combination with a UV-cured adhesive on paperstock to prolong the tack and overall performance of the adhesive. Some aspects of the coating incorporate a chelating material to arrest or completely prevent the migration of unwanted ions, possibly including calcium ions, from moving between the paperstock and the adhesive in a manner that negatively impacts the adhesive. The resulting stock is particularly well-suited to labels and other similar uses.