Disclosed is a water-proof and dust-proof membrane assembly and applications thereof. The water-proof and dust-proof membrane assembly comprises a body and a supporting member. The body is of membrane and has a first surface, a second surface, and an asymmetric porous structure formed between the first surface and the second surface of the body. The asymmetric porous structure has a thickness ranging between 1 ?m and 1000 ?m, a first volumetric porosity ranging between 5% and 99%. The asymmetric porous structure has plural pores, and each pore has a pore diameter between 0.01 ?m and 15 ?m. The supporting member is of a polymeric material and has a first contacting surface, a second contacting surface, and a second volumetric porosity which is greater than the first volumetric porosity. The first contacting surface of the supporting member is adhered to the first surface of the body.

The invention provides a solid foam wound dressing useful for hemorrhage control and wound repair, as well as methods for making such a wound dressing.

A fiber-reinforced resin composite includes a honeycomb core, a fiber-reinforced resin layer, and a protection layer. The honeycomb core includes a plurality of cells that are defined by partition walls and extend in an axial direction. The fiber-reinforced resin layer is disposed around the honeycomb core. The fiber-reinforced resin layer includes continuous fibers wound around the honeycomb core. The protection layer is interposed between the honeycomb core and the fiber-reinforced resin layer. The protection layer is configured to prevent rupture of the continuous fibers.

A method of sub-ambient pressure processing of blow-molded polymer foams and skin-over-foam sandwich panel configurations for lightweight components having improved structural properties. The method can create either skinned or un-skinned foams that offer smooth interior and exterior surfaces, zero or controlled surface porosity, skins of pre-defined thickness, and foam cells that are expanded and oriented normal to the material plane, effectively spherical or polyhedral in nature, and offering improved bending and compressive strength.

An access floor of a motor vehicle comprising a structural core made from injection-moulded thermoplastic material, the core comprising at least one first part, the first part having a first face for receiving feet of passengers, defining a generally flat and horizontal surface, and a first rear face, defining a non-planar surface, wherein the first part comprises a network of contiguous cells defining a repetitive pattern extending along two axes, the cells being open on the reception and rear faces and delimited by partitions extending vertically, wherein two contiguous cells having at least one common portion of the partition, the core comprising an MFR fluidity in accordance with ISO 1133, greater than or equal to 50, the partitions have a thickness of between 0.6 and 1.6 mm, the thickness varying progressively so as to exhibit at least one undercut enabling the core to be removed from the mould.

A method is provided for making an annular reinforcement structure having inner and outer reinforcement bands maintained in concentric alignment by a resilient spacing element positioned between the bands. The method includes the steps of placing the spacing element against the inside face of the outer reinforcement band and compressing the spacing element with a jig, adjacent the top edge of the outer reinforcement band. The spacing element is sufficiently compressed to allow the inner reinforcement band to slide into concentric alignment with the outer reinforcement band, with a minimum of deflection and/or distortion of the inner reinforcement band.

Methods and combinations of a curing catalyst with a mold release mixture, which is then subsequently applied to the surface of a mold prior to the application of polyurethane reactants to said mold, where the curing catalyst component has the effect of catalyzing the reaction at the surface of the molded part. This catalysis results in greater reactivity at the surface between reacting portions and lower delamination of the surface of the foam, thereby leading to more attractive skins with a more consistent cell structure, and lower de-mold times due to skins whose nature makes them less likely to adhere to the surface of the mold. These foams will be less likely to tear upon opening of the mold, and production quality and output will be improved.

Methods of preparing and using compositions and devices comprising compressible absorbent matrix material having mechanically-shaped sponge architecture are disclosed.

A heat-insulating housing (21) includes: a wall body; and an open-cell resin body (4) of thermosetting resin with which a heat-insulating space formed by the wall body is filled by integral foaming, the open-cell resin body including: a plurality of cells (47); a cell film portion (42); a cell skeleton portion (43); a first through-hole (44) formed so as to extend through the cell film portion; and a second through-hole (45) formed so as to extend through the cell skeleton portion, wherein the plurality of cells communicate with one another through the first through-hole and the second through-hole.

The present invention is directed to a device for at least partially covering a vehicle floor pan of a motor vehicle, comprises a carrier element made at least by a hard foam material, a vibration decoupling element made at least by a soft foam material, a surface layer to visually cover the device from the top, wherein the device has a shield element, which is made at least by a plastic material and is configured for accepting, absorbing and distributing the energy of a localized impact stress, which is applied on the device from above against the shield element. The present invention is also directed to a method for producing the device.