A molding apparatus (10) for forming a retaining device. The molding apparatus (10) comprises a molding strip (12) and a molding support (24). The molding strip (12) has an inside face (14), an outside face (16), and a plurality of through cavities (18) extending from the outside face (16) to the inside face (14), the molding strip (12) extending in a longitudinal direction (X) and presenting both a transverse direction (Y) perpendicular to the longitudinal direction (X), and also a height direction (Z) perpendicular to the longitudinal direction (X) and to the transverse direction (Y). The inside face (14) is configured to press against a molding face (26) of the molding support (24), wherein the inside face (14) of the molding strip (12) and/or the molding face (26) of the molding support (24) includes an array of passages, the array of passages forming vents and connecting together the cavities (18) when the molding strip (12) is pressed against the molding support (24).

A molding apparatus (10) for forming a retaining device. The molding apparatus (10) comprises a molding strip (12) and a molding support (24). The molding strip (12) has an inside face (14), an outside face (16), and a plurality of through cavities (18) extending from the outside face (16) to the inside face (14), the molding strip (12) extending in a longitudinal direction (X) and presenting both a transverse direction (Y) perpendicular to the longitudinal direction (X), and also a height direction (Z) perpendicular to the longitudinal direction (X) and to the transverse direction (Y). The inside face (14) is configured to press against a molding face (26) of the molding support (24), wherein the inside face (14) of the molding strip (12) and/or the molding face (26) of the molding support (24) includes an array of passages, the array of passages forming vents and connecting together the cavities (18) when the molding strip (12) is pressed against the molding support (24).

A retaining device with hooks, comprising a base extending in a longitudinal direction and presenting a top face and a bottom face; and a plurality of retaining elements extending from the top face of the base, each retaining element being formed by a stem and a head; the device being characterized in that: the base presents a thickness lying in the range 10 ?m to 700 ?m, where the thickness is the distance between the top face and the bottom face; and the base has two edges in the longitudinal direction, each of said edges presents highs and lows.

A method for assembling an assembly comprising a tape (100) of retaining elements and a substrate (200), said method comprising the following steps: a step of forming a tape of retaining elements by dispensing a molding material into a molding device (1), so as to form a tape (100) of retaining elements comprising a base (51) presenting a bottom face (511) and a top face (512), the top face (511) of the base (51) being provided with retaining elements; and a step of applying a substrate (200) against the bottom face (511) of the base (51) prior to said bottom face (512) of the base (51) solidifying in such a manner as to cause the substrate (200) to penetrate at least in part beyond a plane defined by the bottom face (511) of the base (51) of the tape (100).

A retaining device (300), comprising: an elastic film (310) extending in a longitudinal direction; and a plastics tape (100) extending in the longitudinal direction comprising a base (51) presenting a bottom face (512) and a top face (511) and including a plurality of retaining elements extending from said top face (511); the device being characterized in that the film (310), the base (51), and the retaining elements are formed integrally by means of extrusion.

A retaining device (300), comprising: an elastic film (310) extending in a longitudinal direction; and a plastics tape (100) extending in the longitudinal direction comprising a base (51) presenting a bottom face (512) and a top face (511) and including a plurality of retaining elements extending from said top face (511); the device being characterized in that the film (310), the base (51), and the retaining elements are formed integrally by means of extrusion.

A method of forming a retaining device with hooks, wherein: a molding strip is provided that presents an inside face and an outside face, and that has a plurality of cavities, each cavity defining a stem extending from the outside face towards the inside face and including an end forming a head that extends from the stem towards the inside face of the molding strip; and the molding strip is positioned on rotary drive means, comprising at least two rollers, the inside face of the molding strip being arranged to bear against the drive means.

A retaining device, comprising: a base (51) extending in a longitudinal direction and presenting a top face (511) and a bottom face (512); and a plurality of retaining elements extending from the top face (511) of the base (51), each of the retaining elements being formed by a stem (52) surmounted by a head (53), the stem (52) having a bottom end (521) connected to the base (51), and a top end (522) opposite from the bottom end (521), the head (53) surmounting the top end (522) of the stem (52), and having a bottom face facing towards the base and a top face opposite from the bottom face.

A molding apparatus (10) for forming a retaining device. The molding apparatus (10) comprises a molding strip (12) and a molding support (24). The molding strip (12) has an inside face (14), an outside face (16), and a plurality of through cavities (18) extending from the outside face (16) to the inside face (14), the molding strip (12) extending in a longitudinal direction (X) and presenting both a transverse direction (Y) perpendicular to the longitudinal direction (X), and also a height direction (Z) perpendicular to the longitudinal direction (X) and to the transverse direction (Y). The inside face (14) is configured to press against a molding face (26) of the molding support (24), wherein the inside face (14) of the molding strip (12) and/or the molding face (26) of the molding support (24) includes an array of passages, the array of passages forming vents and connecting together the cavities (18) when the molding strip (12) is pressed against the molding support (24).

Disclosed are multilayer film structures comprising a layer (B) that comprises a crystalline block copolymer composite (CBC) or a specified block copolymer composite (BC), comprising i) an ethylene polymer (EP) comprising at least 80 mol % polymerized ethylene; ii) an alpha-olefin-based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 80 mol % polymerized ethylene and (b) a crystalline alpha-olefin block (CAOB); and a layer C that comprises a polyolefin having at least one melting peak greater than 125 C., the top facial surface of layer C in adhering contact with the bottom facial surface of layer B. Such multilayer film structure preferably comprises (A) a seal layer A having a bottom facial surface in adhering contact with the top facial surface of layer B. Such films are suited for use in electronic device (ED) modules comprising an electronic device such as a PV cell. Also disclosed is a lamination process to construct a laminated PV module comprising such multilayer film structures.