The present invention relates to a thermoplastic resin composition containing a base polymer containing a propylene-based polymer (A) in which a melting endotherm (ΔH-D) is 0 J/g or more and 60 J/g or less, and a melting point (Tm-D) is not observed or is 0° C. or higher and 120° C. or lower; and a propylene-based polymer (C) in which a melting endotherm (ΔH-D) is 20 J/g or more and 120 J/g or less, and a melting point (Tm-D) is higher than 120° C., the content of the propylene-based polymer (C) being 0.5 parts by mass or more and 100 parts by mass or less relative to 100 parts by mass of the content of the propylene-based polymer (A).

An objective of the present invention is to provide a hot melt composition which (i) is excellent in adhesion and heat resistance, and (ii) is not transferred to a surface of a substrate when the substrates pre-coated with the hot melt composition are stacked and stored. The present invention relates to a hot melt composition comprising: a hot melt composition comprising: (A) an amorphous poly-α-olefin, (B) a crystalline propylene-based polymer, (C) a tackifier resin, and (D) a Fischer-Tropsch wax, wherein an amount of the Fischer-Tropsch wax (D) based on 100 parts by weight of the total amount of the components (A) to (D) is 1 to 15 parts by weight.

An objective of the present invention is to provide a hot melt composition which (i) is excellent in adhesion and heat resistance, and (ii) is not transferred to a surface of a substrate when the substrates pre-coated with the hot melt composition are stacked and stored. The present invention relates to a hot melt composition comprising: (A) an amorphous poly-α-olefin, (B) a crystalline propylene-based polymer, and (C) a tackifier resin, wherein the amorphous poly-α-olefin (A) comprises (A1) an amorphous poly-α-olefin having a softening point of 150° C. or more.

A battery packaging material includes a substrate layer, a heat-fusible resin layer, a barrier layer arranged between the substrate layer and the heat-fusible resin layer, and a substrate protective layer as an outermost layer arranged on an outer side of the substrate layer. The substrate protective layer contains a binder resin, soft resin fine particles having a glass transition temperature Tg of less than 30° C., hard resin fine particles having a glass transition temperature Tg of 30° C. or higher, and inorganic fine particles, as solid fine particles, and a total content rate of the solid fine particles in the substrate protective layer is 30 mass % to 50 mass %.

A multi-phasic polymer blend for energy activated edge banding adhesion to a substrate is described. While the blend may be used for adhering edge banding to straight substrates, the blend is preferred for adhering edge banding to contoured substrates. The outer, hard, structural layer of the edge banding is formed from a polypropylene component. The polypropylene component at least includes polypropylene and an optional energy adsorber. The inner adhesion layer of the edge banding is formed from a multi-phasic polymer blend that bonds the outer layer of the edge banding to the substrate. The multi-phasic polymer blend at least includes a polyamide component, a polyolefin component, and a modified polypropylene component. Both the outer and inner layers forming the edge banding may be tinted to conform or contrast with the color of the finished substrate.

A multi-phasic polymer blend for energy activated edge banding adhesion to a substrate is described. While the blend may be used for adhering edge banding to straight substrates, the blend is preferred for adhering edge banding to contoured substrates. The outer, hard, structural layer of the edge banding is formed from a polypropylene component. The polypropylene component at least includes polypropylene and an optional energy adsorber. The inner adhesion layer of the edge banding is formed from a multi-phasic polymer blend that bonds the outer layer of the edge banding to the substrate. The multi-phasic polymer blend at least includes a polyamide component, a polyolefin component, and a modified polypropylene component. Both the outer and inner layers forming the edge banding may be tinted to conform or contrast with the color of the finished substrate.

A hotmelt adhesive comprising a metallocene-catalyzed polyolefin and a hydrophilic melt additive. The adhesive is permanently hydrophilic and can be in particular used to bond components of a disposable hygienic article such as a diaper.

Provided is an adhesive film for metal terminals that exhibits high adhesion strength to a metal terminal even when the heating temperature during bonding of the adhesive film for metal terminals to the metal terminal is a low temperature of 140 to 180° C., for example. An adhesive film for metal terminals, which is to be interposed between a metal terminal electrically connected to an electrode of a power storage device element and a power storage device packaging material for sealing the power storage device element, wherein a value of the following tensile elastic modulus A after heating is smaller than a value of the following tensile elastic modulus B before heating:

tensile elastic modulus A after heating: a tensile elastic modulus as measured in an environment at a temperature of 25° C., after the adhesive film for metal terminals is allowed to stand in a heating environment at a temperature of 140° C. for 12 seconds, and then in an environment at a temperature of 25° C. for 1 hour;

tensile elastic modulus B before heating: a tensile elastic modulus as measured in an environment at a temperature of 25° C.

Provided is an adhesive composition, including a modified polypropylene-based resin (A) that contains at least one of an acidic group or an acid anhydride group, and that contains a (meth)acryloyl group (a), in which the (meth)acryloyl group (a) is introduced by a modification reaction of at least one of an acidic group or an acid anhydride group of a polypropylene-based resin (h) that contains the at least one of the acidic group or the acid anhydride group.

An adhesive film which is for a metal terminal and exhibits high adhesion strength to a metal terminal, when heated and pressurized a plurality of times before being adhered to the metal terminal. This adhesive film for a metal terminal is interposed between: a metal terminal electrically connected to an electrode of a power storage device element; and an exterior material for a power storage device that seals the power storage device element. The adhesive film for a metal terminal has a tensile elastic coefficient A of at least 490 MPa, when measured in an environment of a temperature of 25° C., after being left standing for 12 seconds in a heating and pressurizing environment of a temperature of 180° C. and a surface pressure of 0.0067 MPa, and after being left standing for 1 hour in an environment of a temperature of 25° C.