A composite material includes a fibrous reinforcement and a polymer matrix. The polymer matrix includes two interpenetrating phases, namely a thermoset phase and a continuous thermoplastic phase. The thermoset phase and the thermoplastic phase form a matrix microstructure. The matrix microstructure includes a thermoplastic matrix formed by the thermoplastic phase. The matrix microstructure includes a multitude of thermoset particles formed by the thermoset phase. The thermoset particles have dimensions in a range between 0.1 m and 10 m.

The present invention is directed toward a composition comprising: an epoxy compound, a polythiol curing agent, and a second curing agent. Also disclosed are methods of treating a substrate with the composition and substrates formed by such methods.

The present invention lies in the field of 3D printing methods. In particular, the invention relates to 3D printing methods for the production of a 3D part in a layer-by-layer manner, wherein the printable composition is a pasty epoxy composition comprising at least one epoxy resin, at least one monomer and/or prepolymer that is polymerizable by exposure to radiation and at least one photoinitiator, wherein the pasty epoxy composition has a viscosity factor (1.5/15) of at least 2 at application temperature.

Provided are a hose excelling in a lightweight property and in fatigue fracture resistance, a method for manufacturing the hose, and a hydraulic pump. The hose includes a tube, an interior of the tube being hollow, continuous carbon fibers and/or continuous glass fibers wound around an outer circumference of the tube, and a thermosetting resin present external to the tube. The thermosetting resin has an elastic modulus from 0.5 to 10 MPa, and the continuous carbon fibers and/or continuous glass fibers are impregnated with at least a part of the thermosetting resin. The elastic modulus of the thermosetting resin is a numeric value determined by: heating the thermosetting resin for 2 hours at a curing temperature of the thermosetting resin; then subjecting the thermosetting resin to thermoregulation for two weeks under a condition of a temperature of 23 C. and a relative humidity of 55%; and then performing a measurement in accordance with JIS K7161:2019.

A linerless composite tank for a waste or water system on board an aerospace vehicle includes a monolithic tank body having a first composite material co-cured with a second composite material. The first composite material includes a first resin and the second composite material includes a second resin that is different from the first resin. The first composite material forms an innermost surface of the monolithic tank body defining a tank chamber of the monolithic tank body. A method of manufacturing the linerless composite tank includes providing a mold having a desired interior shape of the monolithic tank, applying the first composite material to the mold, applying the second composite material to the mold, and co-curing the first composite material with the second composite material to form the monolithic composite tank.

Provided are a backing material, an ultrasound probe, an ultrasound diagnostic apparatus, and a curable resin composition. A backing material for an ultrasound probe includes thermally conductive particles and a resin, in which the resin includes any one of the following (A) to (C): (A) a reaction cured product of an epoxy resin having a polyurethane structure and a polyamine compound; (B) a reaction cured product of an epoxy resin and a polyamine compound, the reaction cured product having a polyether structure; and (C) a reaction cured product of a polyisocyanate compound and a polyamine compound, a loss tangent of the resin in a range of 0 C. to 50 C. is 0.06 or more, a loss tangent of the resin in a range of 20 C. to 110 C. is less than 1.50, a storage elastic modulus of the backing material in a range of 0 C. to 50 C. is 1000 MPa or more, and a content of the resin in the backing material is 25% to 50% by volume.

In a resin wheel manufacturing method for forming, with a mold, a material made of a thermoplastic fiber-reinforced resin, the temperature of the mold is set to a temperature lower than a melting point of a resin matrix of the material. As the material, a billet-shaped material and a sheet-shaped material are prepared, and heated to a temperature higher than the melting point of the resin matrix. The heated billet-shaped material is held in the mold surrounded by a disc outer surface mold and a rim outer diameter mold, and the sheet-shaped material is held on a surface of the rim outer diameter mold on a punch mold side. While the sheet-shaped material is subjected to deep draw forming to form the rim portion of the wheel, the billet-shaped material is subjected to compression forming with a part of the sheet-shaped material pressed against the billet-shaped material.

A process for reducing the volatile and semi-volatile organic content (VOC and FOG values) of a heterophasic polypropylene composition, the heterophasic polypropylene composition comprising (i) at least 15 wt.-% of at least a first heterophasic polypropylene; (ii) less than 15 wt.-% of at least one elastomeric polyolefin, (iii) at least one filler; (iv) optionally polyethylene; and (v) optionally further polyolefins to below 100 g/g (VOC, VDA 278 October 2011) and below 390 g/g (FOG, VDA 278 October 2011), the process involving aerating the first heterophasic polypropylene and each further polyolefin component that is present in an amount of at least 15 wt.-% relative to the total weight of the heterophasic polypropylene composition, before extruding these aerated components with the at least one elastomeric polyolefin and the at least one filler and the optional polyethylene and/or optional further polyolefin(s).

Composite material protection from UV degradation is disclosed by providing a co-cured composite material substrate co-cured with a UV/visible light-resistant fiberglass layer to form co-cured composite materials for exclusively imparting UV/visible light-resistant properties to co-cured composite material substrates for use in UV/visible light-resistant vehicle fuel tank assemblies.

An embodiment method of manufacturing an interior component for a vehicle using a real material includes bonding a plurality of laminated printed layers on a rear surface of the real material, injection-molding an injection-molded product that processes a shape by putting the real material into a molding mold and laminating the real material on the injection-molded product injection-molded in a shape corresponding to the processed shape of the real material, forming a light-transmitting part that processes a symbol part on a front surface of the real material and forming a light-transmitting part protruding in a shape of the symbol part, and mounting a light source unit on the injection-molded product, the light source unit configured to be selectively lighted through the light-transmitting part in response to detecting a change in a capacitance from the front surface of the real material.