Abstract:
A method and The apparatus for adhering together lanes (10a, 10b) of a compressible product includes, inserting a wedge device (110, 410a-410c) between two separate lanes (10a, 10b) of a compressible product to split apart at least a portion of the lanes (10a, 10b) of product, advancing either the wedge device (110, 410a-410c) or the separate lanes (l0a, l0b) of the compressible product to move the wedge device (110, 410a-410c) and lanes (10a, 10b) relative to one another, applying an adhesive onto an inside wall (12a, 12b) of one or both of the lanes (10a, 10b) of compressible product while at least a portion of the lanes (10a, 10b) are split, and contacting the inside walls (12a, 12b) of the lanes (10a, 10b) to form a single adhered product.
Abstract:
A biodegradable substrate usable as a prosthetic material for medicinal use (for example, tissue regeneration) or a cell culture substrate which is highly compatible with cells, in particular, facilitates the invasion of cells into the inside of the substrate and has a thick structure similar to woven fabrics without resort to any troublesome techniques such as lamination or weaving/knitting. The biodegradable substrate is obtained by stitching a biodegradable nonwoven fabric with a biodegradable threadlike article. As the nonwoven fabric, use is made of, for example, a material wherein first and second layers, each having filaments of a threadlike article made of collagen located in parallel, are laminated and adhered to each other so that the alignment direction of the filaments of the threadlike aritcle in the first layer and that of the second layer are arranged at a certain angle. This nonwoven fabric is stitched with a threadlike article made of collagen. It is also possible that a filmy material having been treated with a biodegradable binder such as collagen or gelatin is piled on the nonwoven fabric and stitched.
Abstract:
A resin matrix connects a plurality of longitudinally aligned fibers together adjacent an outer side of the reinforcement. The outer side of the reinforcement has elongated peaks and elongated valleys. The valleys are defined by a space absent the resin matrix and located betweeen the longitudinally aligned fibers located between the fibers. The elongated peaks are associated with the longitudinally aligned fibers. An adhesive connects the outer side of the reinforcement to the outer side of the wood structural member. The adhesive bonds to the plurality of valleys of the reinforcement. An apparatus for manufacturing the reinforcement is also provided.
Abstract:
Layered interface materials described herein comprise at least one crosslinkable thermal interface component and at least one compliant fibrous interface component coupled to the thermal interface component. A method of forming layered interface materials comprises: a) providing a crosslinkable thermal interface component; b) providing a compliant fibrous interface component; and c) physically coupling the thermal interface component and the compliant fibrous interface component. At least one additional layer, including a substrate layer, can be coupled to the layered interface material.
Abstract:
The invention describes a method and a device (101) for producing a longitudinal fibre web (100), in which fibres (2) are continuously applied, in the longitudinal direction, to a substrate web (6). In a pretreatment section, a relatively high tensile force (F) has to be exerted on the fibres, resulting in a relatively great strain ( epsilon ). Before the fibres (2) are applied to the substrate web (6), the stress in the fibres is reduced. The drive for the fibres in the pretreatment section is separate from the drive for the substrate web, the transport velocity of the fibres in the pretreatment section being controlled separately as a function of the transport velocity of the substrate web, in such a manner that the transport velocity of the fibres in the relaxed state is substantially equal to the transport velocity of the substrate web in the relaxed state. The result is a longitudinal fibre web (100) which is substantially free of length differences and stress differences between the fibres (2) and the substrate web (6).
Abstract:
Sinuous or wavy composite structures (7) as a capable replacement for crossply laminates. By combining wavy composite laminate (5, 6) in various waveforms, offsets, angular orientation and material combinations, it is possible to provide axial, torsion, or shear properties equivalent to unidirectional materials but without the limitations related to fiber discontinuity, labor costs for fabrication, and weakness at seams where laminates overlap. Several examples of both way crossply laminates (5, 6) and unidirectional crossply laminates are analyzed and compared.
Abstract:
A process for continuous, tailored lamination of aligned composite materials in such a way that either pre-formed or precosolidated are made available for subsequent infusion molding or stamping processes, the process comprising the steps of: material placement, consolidation/stabilization, cut and kit, fabrication, and final trim. A tailored blank machine (306) is also described. The blank machine includes a series of material placement heads (606) arranged in a linear or serial fashion along a single placement table, wherein each head lays down a single angle of the prescribed stacking sequence as the conveyer (304) passes under the head at a constant speed wherein the angle is proportional to head traverse rate by conveyor speed.
Abstract:
A method is provided for manufacturing a reinforcing sheet containing at least one sheet made of a plurality of high tensile modulus fiber monofilaments (12). The sheet defines a first surface (13) and a second surface (15). A first scrim (18) is bonded to the first surface of the sheet and a second scrim (18') is bonded to the second surface of the sheet.
Abstract:
One or more particulate active agents are fused to the surface of a substrate web by mixing the particulate agents with a particulate binder having a particle size not exceeding an average diameter of approximately 40 microns and coating the composite mixture onto the surface of the substrate, wherein any of the web, particulate agent or binder are coated with a bactericide to control or eliminate bacteria. Thereafter, the coated substrate is heated to a temperature equal to or greater than the Vicat softening temperature of the binder and compressed within the nip of a pair of pressure rolls to achieve fusion. If desired, a top layer may be placed upon the coated composite prior to the compression step.
Abstract:
The present invention relates to high quality composite materials from fibers (24) such as glass, polyaramid or graphite fibers, where the composite incorporates a polymer matrix embedding individual fibers. The composites are lightweight materials displaying enhanced strength and durability. In one aspect, the polymer matrix is a thermoplastic or other polymer type that cannot easily penetrate gaps between individual fibers by typical methods for thermosets. The invention also relates to methods for forming composite materials, where the fiber is exposed to an emulsion including polymer particles (22) having sufficiently small dimensions to allow impregnation into the fiber gaps. Composite sheets and articles are also described, as well as the formation of new composites for porous articles, e.g., ceramics or wood, where a polymer matrix is embedded within the pores.