A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals.

A method of forming a package is provided and includes providing two laminate edge portions of the package, each of which includes a foil layer between first and second resin layers; and welding together the respective first resin layers at a first position spaced apart from the edges while not welding the respective first resin layers at the edges, wherein the edge portions include edges from which electrode terminals extend such that portions of the electrode terminals are exposed beyond the edges, and wherein the edge portions are between a sealing portion and exposed portions of positive and negative electrode terminals.

The present invention relates to the use of a first water-soluble film and a second water-soluble film to make a unit dose article and the use of said unit dose article.

Polytetrafluoroethylene (PTFE) composite articles that have a macro textured surface. The composite articles include at least two different PTFE membranes in a layered or stacked configuration. The composite article has a macro textured surface characterized by a plurality of strands raised from the surface of the PTFE membrane. The strands may be formed of either interconnected nodes of PTFE or of at least one nodal mass of PTFE and have a length equal to or greater than about 1.5 mm. The macro textured surface provides a topography to the first PTFE membrane. The composite articles have a bubble point from about 3.0 psi to about 200 psi, a thickness from about 0.01 to about 3.0 mm, and a bulk density from about 0.01 g/cm.sup.3 to about 1.0 g/cm.sup.3.

A secondary battery is provided, including an electrode assembly, a packaging bag, an electrode lead and an insulating member. The electrode assembly is housed in the packaging bag, an edge of the packaging bag has a sealing portion, and the electrode lead is connected to the electrode assembly and passes through the sealing portion; the sealing portion includes a main body region, a first step region and a first transition region, the first step region is located on two sides of the electrode lead in a thickness direction, the main body region and the first transition region are located on a same side of the first step region in a width direction, and the first transition region is connected between the first step region and the main body region; the insulating member surrounds an outer side of the electrode lead and isolates the sealing portion from the electrode lead.

The present invention relates to a method of manufacturing a heterogeneous material joined body.

A method of joining workpieces includes the steps of bringing a first workpiece and a second workpiece together, induction heating a susceptor material, and pressing the workpieces together. Each workpiece may include a thermoplastic material, and the workpieces are brought together at a joint interface so that a protrusion of the first workpiece is aligned with a receptacle of the second workpiece. The susceptor material is in contact with the thermoplastic material of the first workpiece during heating such that the thermoplastic material of the first workpiece softens. The step of pressing is performed while the thermoplastic material of the first workpiece is softened, thereby reshaping the first workpiece where the susceptor material is in contact with the thermoplastic material of the first workpiece. The protrusion is deformed to form an interlock with the receptacle at the joint interface.

A water-soluble unit dose article comprising a first water-soluble film and a second water-soluble film sealed together along a seal area, and optionally comprising a composition contained within the unit dose article, wherein the first water-soluble film and the second water-soluble film are chemically different to one another.

The present disclosure relates more to processes for making a filter element that includes a filter membrane having a strip of thermoplastic polymer material laminated thereto, for example, as a strip along an edge of the filter membrane. For example, one such process includes providing a sheet of filter membrane having a first surface and an opposed second surface; providing a strip of thermoplastic polymer material having a first surface and an opposed second surface; contacting the first surface of the strip of thermoplastic polymer material with the first surface of the filter membrane; and softening the strip of thermoplastic polymer material at at least its first surface by irradiation with laser radiation; such that the softened polymer material of the first surface of the strip of thermoplastic polymer material bonds to the first surface of the filter membrane upon hardening.

Articles having mechanically strengthened seams (320) and methods of making the same are provided. An article includes at least one material sheet (311) and a seam (320) formed from an overlap of two portions (310, 314) of the at least one material sheet (311) and an adhesive (312) deposited between the two portions (310, 314) of the at least one material sheet (311) along at least a portion of the overlap, the adhesive (312) sealing the two portions (310, 314) of the at least one material sheet (311), wherein at least one of the two portions (310, 314) of the material sheet (311) comprises a plurality of indents (322) on a surface thereof, such that the adhesive (312) penetrates the material sheet (311) at the indents (322) to provide a mechanical bond between the two portions (310, 314) of the at least one material sheet (311).