Abstract:
Methods for forming compressed and adhesively bonded structural beams of strands divided from wood waste, and the beams resulting from such methods, are disclosed.
Abstract:
The present invention provides an inorganic fiber mat with a low aldehyde emission without detriment to various physical properties of inorganic fiber mats and a process for its production. An inorganic fiber mat formed by bonding inorganic fibers together with a binder comprising a phenol resin as a main component, wherein the inorganic fiber mat comprises an aldehyde scavenger and its reaction product in an amount of from 3 to 15 parts by mass in relation to 100 parts by mass of the binder pickup, and the aldehyde scavenger is at least one member selected from the group consisting of the sodium salts, potassium salts and calcium salts of sulfurous acid, acidic sulfurous acid, dithionous acid and disulfurous acid. The aldehyde scavenger is applied between the application of the binder and the curing by polymerization.
Abstract:
A reinforcing product includes a first layer (2) of reinforcing threads (3) parallel to each other and a second layer (4) of reinforcing threads (5) parallel to each other and transverse to the first layer (2). The reinforcing threads (3) in the first layer (2) are partially covered by a powder based on a thermoplastic or thermosetting material forming a bond firstly at points between the reinforcing threads (3) in the first layer (2), and secondly between the reinforcing threads (3) in the first layer (2) and the reinforcing threads (5) in the second layer (4).
Abstract:
A composite structural material suitable, for example, as a replacement for wooden boards, is disclosed. It comprises a dimensionally stable core material ensheathed in a dimensionally stable, laminar covering that is adherent to the core material. The laminar covering is comprised of at least one layer of parallel cords bonded to at least one layer of a rigidified web material selected from the group consisting of paper and cloth. Suitable core materials include polyurethane foam, optionally filled with granulated rubber and/or expandable polymer beads. The parallel cords preferably are supplied in the form of a strip of polyester cloth, as the warp cords thereof. The web material preferably is kraft paper that is rigidified with an epoxy resin.
Abstract:
The present invention relates to a air permeable porous fiber pad and a method for making a air permeable porous fiber pad. A single-layer or multi-layer web may be cut by at least two sets of belt rollers, thereby forming strip-shaped webs whose width is the same as the belt. The at least two sets of belts may divide the parallel juxtaposed strip-shaped webs into spaced layers. At least two sets of rollers whose center of shaft is adjustable may be used to adjust the position of each layer of strip-shaped web, so that the layers of strip-shaped webs may overlap each other, and the overlapped layers of strip-shaped webs may be conveyed into a crosslapper, thereby making a air permeable porous fiber pad.
Abstract:
An elongate elastic member is secured to a substrate to form an elastic composite. The elastic member extends along an elastic axis between a first location on the substrate and a second location on the substrate spaced longitudinally from the first location. At least a portion of the elastic axis is generally non-parallel to the longitudinal axis of the substrate. The elastic member crosses its elastic axis at least twice as it extends along the elastic axis, with the elastic member crossing itself at least once as it extends along the elastic axis. In another embodiment, the elastic member generally forms a wave pattern which defines a width of the securement path and has at least two different periods along the securement path. In yet another embodiment, the elastic member defines a continuous series of loops wherein each loop defines a closed portion having a generally tear-drop shape.
Abstract:
A manufacturing method of composite wood that arbitrary amount of wood can be used, nailing is possible and a product with arbitrary configuration is easily manufactured is provided. A melted binder resin and a plurality of wood pieces are kneaded. Then, a resultant kneaded material of the wood pieces and the binder resin is strongly pressed. The binder resin is cooled while the kneaded material is strongly pressed. Alternatively, strong pressing and cooling are repeated for the kneaded material. As a result, the binder resin is cured. A resultant composite wood is cut into a board with a predetermined thickness or a bar with a predetermined dimension and assembled into a desired product. A water content of the wood pieces may be evaporated by heat from the binder resin or may be evaporated by heating the wood pieces.
Abstract:
The present invention relates to the manufacture of a multilayered board having a stable, and moisture resistant surface. To accomplish this and other advantages of the invention, an improved binder system is used in the production of the surface layers of a multi-layered board which combines an excellent resin penetration inside the wood constituents of the board's surface layers, with a strength, durability and resitance to ambient water and moisture. The improved-binder system used in the production of the board surface layers accordinq to this invention involves contacting wood pieces with a binder composition comprised of a curable powdery aldehyde resin and a curable isocyanate resin in the substantial absence of free water to provide a composite mixture that can be formed into a surface layer for assembly and lamination together with other wood and resin composite layers.
Abstract:
The present invention provides for wood based panels (e.g., OSB or plywood) that are termite resistant, fungal resistant, or a combination thereof; and methods of manufacturing the same.
Abstract:
An electro-optic display material comprising a first and a second set of fibers, each fiber having a longitudinal conductive element the two sets forming a matrix structure of junctions, preferably woven. The structure further comprises an electro-optically active (EOA) substance at least partially coating the fibers of the first set; and a transparent or translucent conductive layer covering the EOA substance and having electric contact with the fibers of the second set at contact zones in the vicinity of the junctions. The conductivity of the conductive layer is limited to a predetermined value hereby defining, in the vicinity of each contact zone, an electro-optical activity zone (EOA zone) constituting a display element. Alternatively, the conductive layer is laid over the matrix structure in separated spots, each spot overlaying at least one junction and defining an EOA zone constituting a display element.