A waterproof sound-transmitting sheet, which interposes an adhesive layer composed of a material having micropores formed therein, thus smoothing the flow of the air between a waterproof sound-transmitting layer and a support layer. The waterproof sound-transmitting sheet includes a waterproof sound-transmitting layer formed of a film having elasticity, an adhesive layer having one surface adhered to one surface of the waterproof sound-transmitting layer, and a support layer having one surface adhered to the other surface of the adhesive layer; and the adhesive layer includes a substrate having a pore formed therein and an adhesive agent formed on both surfaces of the substrate.

To provide a stretchable laminate, a locking member, and a sanitary material that can be easily extended at a low stress as well as can enhance the strength. A stretchable laminate 10 according to one embodiment includes a non-woven fabric 14, an elastomer layer 13 laminated on the non-woven fabric 14, and a knitted fabric 15 laminated on the elastomer layer 13. A locking member according to one embodiment is a locking member that is attached to a sanitary material, the locking member including a stretchable laminate 10 including a knitted fabric 15 laminated on an elastomer layer 13, and an engaging portion provided on an end portion of the stretchable laminate 10 opposite to the sanitary material.

Provided is a stretchable film including an elastomer layer, and a surface layer provided on any one or both of a first surface and a second surface of the elastomer layer, in which the surface layer contains one or more polypropylene-based resins selected from the group consisting of block polypropylene, which is a copolymer with ethylene, and random polypropylene, which is a copolymer with ethylene, and calcium carbonate, a content of the calcium carbonate in the surface layer is 10% to 75% by mass with respect to a total mass of the surface layer, a thickness of the elastomer layer is 20 μm to 55 μm, and a thickness of the surface layer is 0.4 μm to 5.0 μm.

The invention relates to a sound protection panel for cladding a wall of an automotive vehicle, the panel includes a mass-spring system. The panel has a lower spring layer based on a resiliently compressible material, an upper mass layer based on resiliently compressible foam flakes, the flakes being bound together by a two-component fibre-based bonding agent comprising a core. The core is fusible at a high temperature or infusible, and a sheath fusible at a lower temperature, the flakes being fused with the sheath to form an upper agglomerated layer.

A multilayer bioreactor bag (20) made from a multilayer film (10), the bag having: inner and outer exterior surface layers (11, 16) on opposing faces of the multilayer film (10) consisting essentially of a low density polyethylene having a density in a range of 0.91 to 0.94 g/cc to provide a non-tacky exterior surface layers; interior layers disposed between the exterior surface layers comprising a gas barrier layer (14) and a structural layer (12) comprising an ethylene alpha-olefin elastomer having a density in a range of 0.87-0.91 to provide a flexible support to the multilayer film.

The present disclosure is directed to a physically crosslinked, closed cell continuous multilayer foam structure comprising at least one foam polypropylene/polyethylene layer with a TPU cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer with at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.

The disclosure provides a laminating device, a laminating method thereof, a flexible display module and a display device. The laminating device is configured to laminate layers of the flexible display module. The laminating device includes a stress applying component, configured to control the first laminating base platform and the second laminating base platform to laminate in a lamination direction, and control at least one of the first laminating base platform and the second laminating base platform to be deformed in a direction perpendicular to the lamination direction during lamination, such that the first laminate layer, that has been laminated, in an unfolded state is provided with a pre-applied stress, wherein a direction of the pre-applied stress is opposite to a direction of a stress borne by the first laminate layer in a folded state.

A winding assembly for a protective device of a motor vehicle, and a method for producing such a winding assembly. Such a winding assembly includes a form-stable winding shaft and a flexible winding web held on the winding shaft such that it can be wound up and unwound. The winding shaft is formed by a form-stabilized wound-up first portion of a flexible sheet-form material and the flexible winding web is formed by a second portion of the flexible sheet-form material adjoining the first portion, whereby the winding shaft and the winding web are in continuous one-piece form.

The polyester film according to an embodiment has a coefficient of determination (R.sup.2) of the strain with respect to stress and a crystallinity adjusted to specific ranges, whereby it is possible to achieve the flexibility that does not cause deformation even when a certain stress is sustained for a long period of time and the resistant characteristics to the impact of external pressing. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.

Disclosed is a method of manufacturing a stretchable substrate according to various embodiments of the present disclosure for realizing the above-described objectives. The method may include generating an auxetic including a plurality of unit structures and adhering one or more elastic sheets to one surface of the auxetic.