The invention relates to a single-ply semi-finished product web which is reinforced with unidirectionally orientated continuous fibers and exhibits a movement direction and comprises a matrix containing at least 60% by weight of one or more thermoplastic polymers selected from the group consisting of polyamide, polyolefin and mixtures thereof and comprising welding seams of overlapping fiber-reinforced semi-finished product web segments at periodically occurring intervals, wherein the fiber plies of the fiber-reinforced semi-finished product web segments overlap, wherein the thickness of the semi-finished product web in the region of the welding seams is at least exactly as high as the arithmetic mean of the other regions of the semi-finished product web, and wherein the width of the regions of the welding seams is more than 1 mm to 8 mm in the movement direction, and wherein the thickness of the semi-finished product web in the regions outside the regions of the welding seams is 0.01 mm to 0.40 mm, and wherein the unidirectionally orientated continuous fibers enclose a predetermined angle with the movement direction, the value of which is in the range of more than 0 to 90, and to a method for its manufacture and to its use for manufacturing a multi-layer composite material and/or organic sheet.

The invention relates to a single-ply semi-finished product web which is reinforced with unidirectionally orientated continuous fibers and exhibits a movement direction and comprises a matrix containing at least 60% by weight of one or more thermoplastic polymers selected from the group consisting of polyamide, polyolefin and mixtures thereof and comprising welding seams of overlapping fiber-reinforced semi-finished product web segments at periodically occurring intervals, wherein the fiber plies of the fiber-reinforced semi-finished product web segments overlap, wherein the thickness of the semi-finished product web in the region of the welding seams is at least exactly as high as the arithmetic mean of the other regions of the semi-finished product web, and wherein the width of the regions of the welding seams is more than 1 mm to 8 mm in the movement direction, and wherein the thickness of the semi-finished product web in the regions outside the regions of the welding seams is 0.01 mm to 0.40 mm, and wherein the unidirectionally orientated continuous fibers enclose a predetermined angle with the movement direction, the value of which is in the range of more than 0 to 90, and to a method for its manufacture and to its use for manufacturing a multi-layer composite material and/or organic sheet.

A process (1, 101, 201) for separating a fibrous target component (21) from textile waste (2, 5) is shown, said textile waste (2, 5) containing the target component (21) and at least one ancillary component (22), whereby the target component (21) consists of water-swellable textile fibers (51) with a density higher than the density of water, the process (1, 101, 201) comprising the steps: a) dispersing the comminuted textile waste (5) in an aqueous solution (7) to obtain a suspension (8) containing the textile waste (5), and b) separating the dispersed textile waste (5) into a high-density target fraction (81) comprising the target component (21), and a low-density residual fraction (82) comprising the at least one ancillary component (22), according to the respective density of said components (21, 22). In order to provide a reliable, fast process for the separation of water-swellable fibers from other textile fibers which are similar in density, it is proposed, that the aqueous solution (7) is an alkaline aqueous solution (7) and the target component fibers (51) are swelled in the alkaline aqueous solution (7) prior to step b), thereby increasing the density and weight of said target component (21) relative to the density and weight of the ancillary component (22).

Expandable substrates, which are referred to as blanks, are created by compressing thermobonded nonwovens after heating the binder material above its melting temperature, and then cooling the compressed nonwovens so that the binder material hardens and holds the fibers of the nonwoven together in a compressed configuration with stored kinetic energy. A mold for the component to be manufactured can be partially filled with a number of boards (or blanks) in a stacked, vertically, adjacent or even random orientation. Upon application of heat to the boards or blanks or parts in the mold, the binder material is melted so as to allow the nonwoven material to expand in one or more directions, and thereby fill all or part of the mold. Upon cooling, the binder material again hardens, and the molded component is retrieved from the mold.

The present invention relates to a method for producing a composite material comprising a step of producing an initial dry preform (101), formed from unidirectional continuous dry fibers, a step of applying non-woven filaments to a first main face (111) of the dry preform, a step of needling said filaments by means of a needling device (5) comprising a plurality of needles (51), each provided with at least one notch, so that filaments are driven by the needles and arranged in a direction substantially perpendicular to the continuous fibers of the dry preform, and a step of impregnating the dry preform with an impregnation polymer, said impregnation polymer constituting the matrix of the composite material part.

Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

Process for forming a permanent join between two sections of fibrous material contained in a thermosetting resin matrix, said process comprising overlaying the two sections and subjecting the overlaid sections to ultrasonic welding to form a permanent join between the two sections, wherein there is no significant change in the sub-ambient Tg of the fibrous material contained in the thermosetting resin matrix in the region of the permanent join.

A manufacturing method for a joined body, includes: bringing a first member and a second member into contact with each other, at least one of the first member and the second member being made of thermoplastic resin, and the second member having a recessed portion on a joining surface to be joined to the first member; and welding the first member and the second member together, including welding a contact portion of the first member and the second member by melting the thermoplastic resin by frictional heat generated in the contact portion by relative movement of the first member and the second member, in a state in which the first member and the second member are in contact with each other.

A manufacturing method for a joined body, includes: bringing a first member and a second member into contact with each other, at least one of the first member and the second member being made of thermoplastic resin, and the second member having a recessed portion on a joining surface to be joined to the first member; and welding the first member and the second member together, including welding a contact portion of the first member and the second member by melting the thermoplastic resin by frictional heat generated in the contact portion by relative movement of the first member and the second member, in a state in which the first member and the second member are in contact with each other.

Blower vane for an aircraft turbine engine, the vane comprising a blade connected to a root, the vane being made of a woven fibre-based composite material embedded in a polymeric resin, the vane further comprising a medium for identifying the vane, which is a radio-identification medium, the blower vane being characterised in that it comprises at least a first portion the fibres of which are only electrically conductive fibres, and at least a second portion the fibres of which are formed by a mixture of electrically conductive fibres and non-electrically conductive fibres, and in that the identification medium is located in or on the second portion.