Patent classifications
B29C70/506
Fiber-reinforced composite
Disclosed is a fiber-reinforced composite (200). Some fiber-reinforced composites include a matrix material (204) including a thermoplastic material and a non-woven fibrous region (202) having a plurality of continuous fibers dispersed in the matrix material, wherein the width and the length of the non-woven fibrous region are substantially equal to the width and the length, respectively, of the fiber-reinforced composite, wherein the non-woven fibrous region has a mean relative area fiber coverage (RFAC) (%) of from 65 to 90 and a coefficient of variance (COV) (%) of from 3 to 20, and wherein each of the plurality of continuous fibers (206) is substantially aligned with the length of the fiber-reinforced composite.
METHOD FOR MANUFACTURING FRP PRECURSOR AND METHOD FOR MANUFACTURING FRP
In the method for adhering a resin film with an aggregate under an atmospheric pressure in which workability is excellent and spouting of the resin from an edge portion of the aggregate can be suppressed, the present invention provides a method for producing an FRP precursor with excellent resin filling property into bulk voids of the aggregate as well as a method for producing an FRP. Specifically, provided is the method for producing the FRP precursor by adhering a thermosetting resin film to one. surface of an aggregate that is in a form of a sheet under an atmospheric pressure, wherein the method includes a process in which the thermosetting resin film and the aggregate are press-adhered by heating by means of a pressure roll having a temperature in a range of +5 C. to +35 C. relative to a temperature at which a minimum melt viscosity of the film is exhibited.
PANEL FOR FORMING A FLOOR COVERING
A panel including at least a substrate of thermoplastic material and a top layer with a printed decor and a translucent or transparent wear layer. The substrate has a thickness larger than one half of the thickness of the entire panel, and the substrate at least includes two layers, where the two layers each include thermoplastic material. A first one of the two layers further includes at least 60 percent by weight of filler materials and a second one of the two layers includes less fillers or is not filled, and is situated above the first one of the two layers.
Prepreg, method for its production and fiber-reinforced molded product
To provide a prepreg excellent in storage stability and capable of obtaining a fiber-reinforced molded product excellent in impact resistance, chemical resistance and inter-member (interlayer) adhesion and a method for its production as well as a fiber-reinforced molded product excellent in impact resistance, chemical resistance and inter-member (interlayer) adhesion. The prepreg comprises reinforcing fibers and a matrix resin, wherein the matrix resin comprises, as a resin component, only a melt-moldable fluororesin having a melting point of from 100 to 325 C. and having functional groups of at least one type selected from the group consisting of carbonyl group-containing groups, hydroxy groups, epoxy groups and isocyanate groups, or the fluororesin and a thermoplastic resin (but excluding the fluororesin), and in 100 mass % of the total of the fluororesin and the thermoplastic resin, the proportion of the fluororesin is from 70 to 100 mass % and the proportion of the thermoplastic resin is from 0 to 30 mass %.
Method for manufacturing a panel including a reinforcement sheet, and a floor panel
A method for manufacturing a panel including a reinforcement sheet having the steps of: providing a first layer of thermoplastic material, providing a reinforcement sheet, laying the reinforcement sheet and the first layer onto each other, applying a second layer of thermoplastic material on top of the reinforcement sheet at a side facing away from the first layer, at least partially melting the thermoplastic materials of the first layer and the second layer, adhering the at least partially melted first layer, the at least partially melted second layer and the reinforcement sheet to each other so as to form the panel. Additionally, the reinforcement sheet and the first layer are adhered to each other by pressing them together after at least partially melting the thermoplastic material of the first layer, but before applying the second layer of thermoplastic material onto the reinforcement sheet.
Panel for covering and/or soundproofing a wall of a vehicle and associated method of manufacture
A panel for covering and/or soundproofing a wall of a vehicle includes a central layer produced by impregnating a flexible and porous material with a thermoformable resin, then rigidifying the thermoformable resin. The panel also includes two reinforcement layers arranged on either side of the central layer. The impregnation of the flexible and porous material with the thermoformable resin is carried out deep within the flexible and porous material by subjecting a powder of the thermoformable resin to an alternating electric field, the two reinforcement layers being made of a flexible or semi-rigid material.
Method for manufacturing a panel including a reinforcement sheet, and a floor panel
A method for manufacturing a panel including a reinforcement sheet comprises the steps of: providing a first layer of thermoplastic material, providing a reinforcement sheet, laying the reinforcement sheet and the first layer onto each other, applying a second layer of thermoplastic material on top of the reinforcement sheet at a side facing away from the first layer, at least partially melting the thermoplastic materials of the first layer and the second layer, adhering the at least partially melted first layer, the at least partially melted second layer and the reinforcement sheet to each other so as to form the panel, wherein the reinforcement sheet and the first layer are adhered to each other by pressing them together after at least partially melting the thermoplastic material of the first layer, but before applying the second layer of thermoplastic material onto the reinforcement sheet.
Method for making unidirectional fiber-reinforced tapes
Disclosed is a fiber-reinforced composite and methods and apparatuses for making the same. Some fiber-reinforced composites include a matrix material including a thermoplastic material and a non-woven fibrous region having a plurality of continuous fibers dispersed in the matrix material, wherein the width and the length of the non-woven fibrous region are substantially equal to the width and the length, respectively, of the fiber-reinforced composite, wherein the non-woven fibrous region has a mean relative area fiber coverage (RFAC) (%) of from 65 to 90 and a coefficient of variance (COV) (%) of from 3 to 20, and wherein each of the plurality of continuous fibers is substantially aligned with the length of the fiber-reinforced composite.
METHOD AND DEVICE FOR PRODUCING A RIBBON AND A THREAD OF BAMBOO FIBER
The present invention relates to a method of producing a ribbon (12) comprising bamboo fibers (14), the method comprising: positioning the fibers (14) on a conveyor (16) and conveying the fibers in a transport direction, interconnecting the fibers (14) by: covering the fibers with thread (42) and/or particles of a sticky material with at least one web forming device (40) which is positioned above and/or below the conveyor and which ejects thread and/or particles, wherein the formed thread and/or particles attaches to the fibers and forms a web (45) which interconnects the fibers in order to form the ribbon, and/or stitching the fibres together with at least one stitching device (40B) which is configured to stitch the individual fibers together in order to form the ribbon.
Panel for forming a floor covering
A panel including at least a substrate of thermoplastic material and a top layer with a printed decor and a translucent or transparent wear layer. The substrate includes three layers, including a lowermost layer, a central layer and an uppermost layer, all made from thermoplastic material, where the thermoplastic material of the central layer is more rigid than the thermoplastic material of the lower most layer and the uppermost layer.