The present invention relates to a process, especially impregnation process, for producing a semifinished fiber matrix product using micropellets.

A textile reinforcement that can be used for the creation of composite components by pultrusion, including a reinforcing layer having lengths of fiberglass oriented randomly and coated in a polyester binder. The reinforcing layer includes at least one reinforcement layer formed of fibers structured as a weave or as a mesh, or as longitudinal and transverse filaments. The reinforcing layer includes at least one thickness layer, adjacent to the reinforcement layer, and based on the lengths of fiberglass oriented randomly and coated in a polyester binder. At least one first surface layer as a web of fibers forms a first external face of the textile reinforcement. A second external face of the textile reinforcement is formed by the reinforcement layer or by a second surface layer as a web of fibers. The polyester binder binds the layers of the textile reinforcement together.

A method for producing a fiber composite laminate, including the steps of applying pressure and/or heat to a first preform, which has one or more dry fiber layers and a thermoplastic elastomer, such that the thermoplastic portion of the thermoplastic elastomer completely impregnates the dry fiber layers of the first preform in at least one first region and only partially impregnates the dry fiber layers in at least one second region and, in a thermosetting polymer matrix, impregnating and curing the fiber layers of the second region of the first preform that are still dry and have not been impregnated with the thermoplastic portion of the thermoplastic elastomer.

The present invention discloses a manufacturing method of a color decorative plate for an integral bathroom. Firstly, a decorative fiber cloth is immersed and a surfacing material is prepared, wherein the steps include: adding various auxiliaries to an unsaturated polyester resin; uniformly mixing to form a resin paste, wherein the auxiliaries contain an initiator, a mold discharging agent, an accelerator, a coupling agent, a crosslinking monomer and cinnamene; uniformly coating the above resin paste on the decorative fiber cloth; precuring and drying at 105 C. to 130 C. to produce the surfacing material; then compression moulding; feeding a sheet molding compound (SMC) into a mould; and laying the surfacing material on the SMC in the mould for integral compression moulding. In the compression moulding process, a mold cavity is at an upper part and a mold core is at a lower part to prevent decorative patterns from deforming because the decorative fiber cloth is stretched due to the flow of the SMC and to avoid wrinkling the decorative fiber cloth. The SMC is used as a structural layer, and the surfacing material is attached to a surface of the structural layer. The patterns on the surface of a finished product have high clarity and brightness.

In order to well perform recoating regardless of the type of granular material and reuse a refractory aggregate in an unprinted portion without any regeneration process in the manufacture of a three-dimensional lamination-shaped mold, this invention provides a granular material for use in shaping a three-dimensional laminated mold, which is coated with an acid as a catalyst which activates and cures an organic binder for binding the granular material. The acid contains at least one of sulfuric acid, phosphoric acid, a sulfonic acid and a carboxylic acid, and is one of a mixture of sulfuric acid and another acid, phosphoric acid only, a mixture of phosphoric acid and another acid, sulfonic acid only, a mixture of sulfonic acid and another acid and a mixture of a carboxylic acid and another acid.

Methods of making prepregs are described. The methods include the steps of forming a fiber-containing substrate, and contacting the fiber-containing substrate with a resin mixture. The resin mixture may include polymer particles mixed in a liquid medium, and the polymer particles may be coated on the fiber-containing substrate to form a coated substrate. The liquid medium may be removed from the coated substrate to form the prepreg. The prepregs may be used to make fiber-reinforced articles.

An apparatus and method for the automated manufacturing of three-dimensional (3D) composite-based objects is disclosed. The apparatus comprises a material feeder, a printer, a powder system, a transfer system, and optionally a fuser. The method comprises inserting a stack of substrate sheets into a material feeder, transferring a sheet of the stack from the material feeder to a printer, depositing fluid on the single sheet while the sheet rests on a printer platen, transferring the sheet from the printer to a powder system, depositing powder onto the single sheet such that the powder adheres to the areas of the sheet onto which the printer has deposited fluid, removing any powder that did not adhere to the sheet, optionally melting the powder on the substrate, and repeating the steps for as many additional sheets as required for making a specified 3D object.

The prepreg sheet, which is an intermediate of molded articles, has a nonwoven fabric having carbon fibers and thermoplastic resin fibers, wherein the prepreg sheet has a thickness expansion rate of 250% or less after being heated for 90 seconds at a temperature of the melting point of the thermoplastic resin fiber to the melting point+100 C.

An apparatus for manufacturing a fiber reinforced resin material, by cutting long fiber bundles into a plurality of pieces having a predetermined length, and impregnating the cut fiber bundles with resin, includes a plurality of cutters each having a predetermined length and configured to cut the long fiber bundles, and a conveyance unit provided below the cutters and configured to continuously convey the fiber bundles cut with the cutters. The cutters are arranged along a conveying direction of the conveyance unit, such that respective longitudinal directions of the cutters form different angles with the conveying direction of the conveyance unit, when viewed from above the cutters.

There are provided a holding strap, methods of making the same, and methods using such holding strap for tying down objects on a flatbed of a vehicle, retaining underground tanks, or lifting electrodes out of an electrolytic cell. The holding strap includes a chemically pre-treated strap component, an epoxy resin chemically bonded to the pre-treated strap component, and a hook component comprising a cavity that is configured and sized to receive at least a portion of the strap component, the epoxy resin being chemically bonded to internal surfaces of the cavity, so as to form the holding strap.