A multi-layered composite insulation material includes a first and second outer layers having one or more of para-aramid, meta-aramid, flame-retarded modacrylic, or pre-oxidized polyacrylonitrile fibers; and an inner layer disposed between the first and second outer layers having one or more of polyacrylonitrile fibers or ceramic fibers. The inner and outer layers are bonded via needle punching, thermal bonding, or stitch bonding. The outer layers further include flame-retardant rayon fibers and a woven or knit fabric having continuous high-temperature glass, silica, or ceramic filaments.

A multi-layered composite insulation material includes a first and second outer layers having one or more of para-aramid, meta-aramid, flame-retarded modacrylic, or pre-oxidized polyacrylonitrile fibers; and an inner layer disposed between the first and second outer layers having one or more of polyacrylonitrile fibers or ceramic fibers. The inner and outer layers are bonded via needle punching, thermal bonding, or stitch bonding. The outer layers further include flame-retardant rayon fibers and a woven or knit fabric having continuous high-temperature glass, silica, or ceramic filaments.

An article of apparel includes a composite material. The composite material includes a pliable first layer and a resilient second layer, where the first and second layers are secured to each other via a patterned strand network. In forming the composite material, the second layer is stretched and maintained under tension while the first layer is secured to the second layer via the patterned strand network. The tension on the second layer is then released, resulting in contraction of the second layer in relation to the first layer and an outward buckling or protrusion of the first layer in relation to the second layer to form protruding cells along the composite material that are bounded by portions of the patterned strand network. The patterned strand network can be formed using embroidery with one or more auxetic patterns in the stitching.

An article of apparel includes a composite material. The composite material includes a pliable first layer and a resilient second layer, where the first and second layers are secured to each other via a patterned strand network. In forming the composite material, the second layer is stretched and maintained under tension while the first layer is secured to the second layer via the patterned strand network. The tension on the second layer is then released, resulting in contraction of the second layer in relation to the first layer and an outward buckling or protrusion of the first layer in relation to the second layer to form protruding cells along the composite material that are bounded by portions of the patterned strand network. The patterned strand network can be formed using embroidery with one or more auxetic patterns in the stitching.

A device and method for sealing or repairing a leaking and/or damaged location on an inner wall of a pipe, includes a volume-expandable bellow body configured to expand, with an increase in its volume, when the bellows body is positioned in the region of the leaking and/or damaged location in the interior of the pipe, with infiltration of a fluid, into a bellows-body interior. A carrier portion is formed on an outer surface of the bellows body, a resinated sealing mat being arrangeable on the carrier portion, the sealing mat being fastenable to the inner wall of the pipe, and being able to cure, in an expanded state of the bellows body in the region of the leaking and/or damaged location by being pressed against said-the inner wall. The device can also be used reliably in long-term use, such that the carrier portion is formed from Para rubber or silicone.

The present invention relates to a three-dimensional string woven air cushion and a method of manufacturing the same, the three-dimensional string woven air cushion including a lower sheet layer made by interlacing a plurality of weft yarns and a plurality of warp yarns and configured to define a predetermined thickness layer and a bottom surface, an upper sheet layer made by interlacing a plurality of weft yarns and a plurality of warp yarns and configured to define a predetermined thickness layer and a top surface, the upper sheet layer being disposed above the lower sheet layer, provided in parallel with the lower sheet layer, and spaced apart from the lower sheet layer at a predetermined distance, and an interval maintaining yarn layer made by interlacing interval maintaining yarns connected to at least one of the weft yarn and the warp yarn of each of the lower and upper sheet layers, the interval maintaining yarns being continuously interlaced and connected in a zigzag manner in a direction from one side to the other side, thereby providing an advantage that greatly improve a user’s sleeping convenience.

The product manufactured according to the method is waterproof and provided with a cavity, such as a glove, shoe, or a backpack. Initially, a structure is made in the shape of the product by stitching portions of a laminated material attached together by corresponding seams. The stitched structure is then turned inside out and a thermally-curable silicone compound material, in uncured liquid state, is applied on the seams. The structure with applications is then simultaneously subjected to heating with a curing temperature of the material, and to a vacuum operation with pumping means that suck in air from outside the structure with applications into the structure and extract it outside. The invention also relates to a system for manufacturing according to the method.

The product manufactured according to the method is waterproof and provided with a cavity, such as a glove, shoe, or a backpack. Initially, a structure is made in the shape of the product by stitching portions of a laminated material attached together by corresponding seams. The stitched structure is then turned inside out and a thermally-curable silicone compound material, in uncured liquid state, is applied on the seams. The structure with applications is then simultaneously subjected to heating with a curing temperature of the material, and to a vacuum operation with pumping means that suck in air from outside the structure with applications into the structure and extract it outside. The invention also relates to a system for manufacturing according to the method.

A form for a thin reinforced composite material includes a plurality of separate linear fiber strips, each having a rectangular cross section composed of reinforcement fibers. The linear fiber strips laid out in a two-dimensional base layer defining a shape of the form. A first successive layer formed with the plurality of separate linear fiber strips contacting the base layer, the linear fiber strips laid out in the first successive layer interspersed from the separate linear fiber strips in the two-dimensional base layer. A method of forming the form includes arranging the plurality of separate linear fiber strips on a substrate and tacking the plurality of separate linear fiber strips to the substrate with a plurality of stitches. A method of forming a unitary reinforced composite component from the form is further provided. The resulting component having high strength and light weight and being efficient to manufacture.

A form for a thin reinforced composite material includes a plurality of separate linear fiber strips, each having a rectangular cross section composed of reinforcement fibers. The linear fiber strips laid out in a two-dimensional base layer defining a shape of the form. A first successive layer formed with the plurality of separate linear fiber strips contacting the base layer, the linear fiber strips laid out in the first successive layer interspersed from the separate linear fiber strips in the two-dimensional base layer. A method of forming the form includes arranging the plurality of separate linear fiber strips on a substrate and tacking the plurality of separate linear fiber strips to the substrate with a plurality of stitches. A method of forming a unitary reinforced composite component from the form is further provided. The resulting component having high strength and light weight and being efficient to manufacture.