摘要:
The present invention relates to a method for producing flexible, stretchable transparent and highly electrically conducting hybrid polymer films comprising electrically conductive electrospun nanofibers embedded in solution cast dielectric polymer films. In one embodiment, the present invention utilizes an electrically conductive nanofiber, or nanofiber structure, that is embedded in a suitable polymer film. In one embodiment, the electrically conductive nanofiber, or nanofiber structure, can be electrospun from a suitable polymer solution that contains a suitable amount of, for example, at least one conductive material. In one embodiment, the flexible polymer film portion of the present invention can be formed from poly(methyl methacrylate) (PMMA) or polyimide. In another embodiment, the present invention relates to flexible polymer films that have conductive structures embedded therein, wherein the flexible polymer film portion is form via a casting process to produce transparent films from, for example, polycarbonate, polyurethane and/or cyclopolyolefin polymer compositions.
摘要:
The invention relates to a device (1) for applying a partial surface coating (2a, 2b) onto a film (W), said device being designed to apply a double-face coating (2a, 2b). The device (1) is provided with application devices (3a, 3b) with movable screens (6a, 6b). Said screens (6a, 6b) are aligned with each other in such a manner that the surface coating (2a) on the one face (4a) of the film (W) is substantially identical to the surface coating (2b) of the other face (4b) of the film (W).
摘要:
A method for producing a foam-containing structure. In a first embodiment, a defoamer (38, 92, 130, 154) is applied to the inner surface (34, 78, 132, 156) of an impermeable carrier (12, 72). A foamed resin is introduced inside the carrier (12, 72) and contacts the defoamer (38, 92, 130, 154) to form a liquid resin layer (52, 138, 164) on the inner surface (34, 78, 132, 156). The foamed resin (46, 134, 160) and liquid resin layer (52, 138, 164) are cured to produce a foamed resin inner core (58, 100) and a solid resin outer layer (62, 102). In a second embodiment, a permeable carrier (122, 150) is covered with an impermeable release material (112). A defoamer (38, 92, 130, 154) is applied to the carrier (122, 150). A foamed resin (46, 134, 160) is introduced inside the carrier (122, 150) and contacts the defoamer (38, 92, 130, 154) to form a liquid resin layer (52, 138, 164) impregnating the carrier (122, 150). The foamed resin (46, 134, 160) and liquid resin layer (52, 138, 164) are cured to produce a foamed resin inner core (58, 100), the carrier (122, 150) as a facer material, and a solid resin layer (142, 166) impregnating the carrier (122, 150). In a third embodiment, a defoamer (38, 92, 130, 154) and a catalyst (158) are applied to a permeable carrier (122, 150).
摘要:
Methods of producing polyethylene films having a desired water vapor transmission rate (WVTR) are provided. The methods include casting a polyethylene sheet which has a base layer of a polyethylene and a cavitating agent, and at least one layer of a WVTR-controlling material, and subsequently biaxially orienting the sheet to yield a film having the desired WVTR. The base layer has a porous microstructure and a WVTR substantially higher than the desired WVTR.
摘要:
The present disclosure relates to screened cages to contain fibrous and other bulky materials during liquid-solid processing that can allow optimized flow of the materials within the screened cages for mass transfer, heat transfer and prevent packing of the material that would obstruct liquid flow. In addition, the screened cages enable safer handling in high temperature or corrosive environments.
摘要:
Three-dimensional biomimetic tissue scaffolds, as well as methods of manufacture of these scaffolds. The method is fully customizable to create a biomimetic tissue scaffold with shapes, densities, and geometries similar or identical to the tissue it imitates. For example, physiologically realistic collagen/PEG villi created using the method are designed to have a high-aspect ratio and curvature similar to villi found in the human small intestine. Accordingly, the biomimetic tissue scaffolds serve as an improved in vitro model for a wide variety of physiological research, as well as pharmacological testing and drug, compound, and/or metabolite uptake by cells growing on the scaffold, among many other uses.
摘要:
A method of moulding an object of indefinite length. A first portion of molten material is injected into a mould comprising a stationary platen and a moving platen and solidifies to form a first portion of solid material at a first position. The moving platen is moved in a given direction to open the mould and move the material in said given direction to a second position in communication with the mould. The moving platen is then moved in the opposite direction to close the mould. A further portion of molten material is injected into the mould and solidifies to form a further portion of solid material intimately bonded to said first portion. The steps are repeated to form an object comprising the first portion and further portions of material bonded together as a linear array of indefinite length.
摘要:
The invention comprises a method for applying a curable resin (50) to a reinforcing structure (40) and an apparatus therefor. The apparatus comprises a working surface (72) having a pattern of recesses therein structured and designed to at least partially receive a reinforcing structure (40), a means for disposing the reinforcing structure (40) in the pattern of recesses of the working surface, a means (55) for applying a fluid resinous material to the reinforcing structure disposed in the recesses of the working surface, and a means for solidifying the fluid resinous material to provide a patterned resinous framework joined to the reinforcing structure. The process comprises the steps of at least partially disposing the reinforcing structure in the recesses of a working surface, applying the fluid resinous material to the reinforcing structure, and then solidifying the fluid resinous material to form a patterned resinous framework joined to the reinforcing structure. Preferably, the reinforcing structure has voids, penetrable by the fluid resinous material, intermediate the first and second sides, and the resinous material occupies at least some of the voids in the reinforcing structure. The finished belt comprises a patterned resinous framework joined to the reinforcing structure such that a substantial portion of a bottom side of the resinous framework is between two opposite sides of the reinforcing structure.