A braided thermoplastic ribbon is disclosed having fully impregnated filaments. The ribbon is formed by a thermoplastic prepreg having a plurality of continuous fibers that are substantially oriented in a longitudinal direction, the continuous fibers constituting from about 30 wt. % to about 40 wt. % of the prepreg, a first resinous matrix that contains a first set of one or more thermoplastic polymers and within which the continuous fibers are embedded, wherein the thermoplastic polymers constitute from about 30 wt. % to about 40 wt. % of the prepreg, and a second resinous matrix that contains a second set of one or more thermoplastic polymers, wherein the second set of thermoplastic polymers constitute from about 30 wt. % to about 40 wt. % of the prepreg.

The invention relates to a continuous fibrous tape comprising a substantially planar sheet of natural fibres of length Li. The sheet has a longitudinal dimension L and a transverse dimension w. The sheet comprises planar units positioned in n longitudinal lines. The planar units of adjoining longitudinal lines are misaligned by a misalignment distance Lv, with Lv being at least 3 w/n. Furthermore if the misalignment distance Lv between planar units of a first longitudinal line and the planar units of a second longitudinal line is less than 3 w/n, then there are at least two longitudinal lines positioned between the first longitudinal line and the second longitudinal line. The invention further relates to a method of manufacturing such a continuous fibrous tape and to the use of such a continuous fibrous tape to manufacture a composite article.

Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from a reactive resin composition that includes methyl methacrylate. Methods of making fiber-containing PMMA prepregs are also described.

A composite material obtained by impregnating a fibrous filler to which a hydrocarbon-based resin is attached with a polymerizable composition containing a cycloolefin monomer and a metathesis polymerization catalyst is provided. According to the present invention, it is possible to provide a composite material which has no impregnation unevenness and can give a composite material molded article having excellent strength.

Presented are fiber-reinforced polymer (FRP) sandwich structures, methods for making/using such FRP sandwich structures, and motor vehicles with a vehicle component fabricated from a compression molded thermoset or thermoplastic FRP sandwich structure. A multidimensional composite sandwich structure includes first and second (skin) layers formed from a thermoset of thermoplastic polymer matrix, such as resin or nylon, filled with a fiber reinforcing material, such as chopped carbon fibers. A third (core) layer, which is encased between the first and second skin layers, is formed from a thermoset/thermoplastic polymer matrix filled with a fiber reinforcing material and a filler material, such as hollow glass microspheres. The first, second and third layers have respective rheological flow properties that are substantially similar such that all three layers flow in unison at a predetermined compression molding pressure. These layers may be formed from the same thermoset/thermoplastic polymer material, and include the same fiber reinforcing material.

A graphene oxide/polypropylene heat-resistant high-strength composite profile and a preparation method thereof. The composite profile is a graphene oxide/polypropylene-based reinforced plain weave composite resin material, which is a heat-resistant high-strength composite profile prepared from a graphene oxide/polypropylene-based woven plain weave fabric and a fiber heat-insulating material which are made into a layered spacing structure composite flat net, and a resin composite material. The preparation method comprises the following steps: preparation of a graphene oxide/polypropylene-based woven plain weave fabric; preparation of a graphene oxide/polypropylene-based reinforced plain weave composite material; preparation of a multilayer graphene oxide/polypropylene-based reinforced plain weave composite material; and preparation of a resin composite material. The present invention has the advantages of convenient operation and excellent properties.

A process for aligning discontinuous fibers, and composite products and mats comprised of highly aligned discontinuous fibers, including products of the process. Aligned discontinuous fiber composite products include a matrix of fibers, each fiber having a longitudinal fiber axis, the composite comprising a free, uncut edge extending along an edge axis. The longitudinal fiber axis of a majority of the fibers in the composite product are aligned within a predetermined alignment tolerance of an alignment axis non-parallel to the edge axis. Aligned discontinuous fiber mats may have a first areal density of fibers in a first region of the composite located inward relative to the free, uncut edge, and a second area density at or adjacent to the free, uncut edge.

There is described a binding resin for nonwoven fabrics, in particular for manufacturing supports for bituminous membranes, consisting of 100% natural, sustainable raw materials. The resin is an aqueous solution consisting of starch, a crosslinking agent of natural origin and a catalyst.

A shoe press belt includes a polyurethane in which a reinforcement base member is embedded, the polyurethane being in one piece with the reinforcement base member. The polyurethane constituting at least an outer circumferential surface of the shoe press belt includes, as an urethane prepolymer component, an aliphatic polycarbonatediol component and an aromatic diisocyanate component, and includes, as a curing agent component, an aliphatic diol component having a carbon number of less than or equal to 6 and an aromatic diol component having two hydroxyethoxy groups. A content of the aromatic diol component with respect to the aliphatic diol component and the aromatic diol component is more than or equal to 10 mass % and less than or equal to 50 mass %. Accordingly, there is provided a shoe press belt suppressed in generation and development of a crack.

A fiber-reinforced resin composite material includes first and second members. The first member includes a first fiber and a first matrix resin. The first fiber includes a reinforcing fiber and is impregnated with the first matrix resin. The reinforcing fiber has a melting point and a tensile strength higher than those of an aliphatic polyamide fiber. The second member includes a stack and a second matrix resin. The stack includes a second fiber and a third fiber filled with the second matrix resin. The second fiber includes the reinforcing fiber. The second matrix resin includes a component common to that of the first matrix resin, and includes a first polyamide resin that includes an aliphatic polyamide resin. The third fiber includes a second polyamide resin that includes an aliphatic polyamide resin and has a melting point higher than that of the first polyamide resin by 7 to 50 degrees centigrade.