A resin composition includes a vinyl-containing polyphenylene ether resin, a polyolefin and a magnesium and aluminum combination type ionic compound with a thermal resistance of greater than or equal to 600 C. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and at least one of the following improvements can be achieved, including glass transition temperature, copper foil peeling strength, thermal resistance and dissipation factor.

Provided is an artificial leather that achieves both a soft texture and excellent durability, and a method for manufacturing the same, the leather comprising: a fibrous base material formed from superfine fibers having an average single fiber diameter of 0.1-10 m; and a polymeric elastic body, where the polymer elastic body comprises a compound having a hydrophilic group and a compound having an ethylene oxide skeleton, the content of the compound in the polymeric elastic body of the artificial leather being 0.1-5 parts by mass per 100 parts by mass of the polymeric elastic body.

A reactive diluent system for composite resins contains a reactive diluent composition, which contains an organic phosphorus compound, and an accelerator system. The accelerator system contains at least one iron salt or complex, at least one transition metal salt or complex selected from cobalt and copper, and optionally at least one solvent.

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.

Provided are a method for producing an FRP precursor and a device for producing an FRP precursor, wherein the method and the device have a good productivity, and under a normal pressure, enable filling of a resin into a bulk gap of an aggregate as well as prevent the resin from spouting out from an edge portion thereof. The method for producing the FRP precursor is to produce the FRP precursor by melt-adhering each of a pair of thermosetting resin films 54 to each of both surfaces 40a and 40b of an aggregate 40 that is in a form of a sheet, the method comprising: an aggregate's surface heating process to heat aggregate's both surfaces, i.e., the both aggregate's surfaces 40a and 40b of the aggregate 40, and a film press-adhering process to obtain the FRP precursor wherein under a normal pressure, one aggregate-side film surface 54a of the pair of the films 54 is press-adhered to one surface of the heated both aggregate's surfaces, and another aggregate-side film surface 54a of the pair of the films 54 is press-adhered to another surface of the heated both aggregate's surfaces.

Provided is a fiber-reinforced composite material having a greater maximum stress, maximum elongation, and tensile modulus, which are determined by a tensile test, than conventional fiber-reinforced composite materials containing a fluororesin as a matrix. The invention relates to a fiber-reinforced composite material including a fluororesin and a reinforcing fiber, the fluororesin containing a tetrafluoroethylene unit and a vinylidene fluoride unit, the tetrafluoroethylene unit representing 55 to 95 mol % of all the monomer units constituting the fluororesin, the vinylidene fluoride unit representing 45 to 5 mol % of all the monomer units constituting the fluororesin.

The disclosure relates to a thermosetting composition comprising a copolymer of (a) a diisoalkenylarene (DIAEA), and (b) a divinylarene (DVA) comprising m-DVB, p-DVB, m-EVB, p-EVB, and mixtures thereof. A mole ratio of DIAEA to DVA is from 15:1 to 1:15. The thermosetting composition after curing at a temperature of 120 C. is characterized as having: a Gel Content of >90%, a Dk of <2.6 and Df of <0.002, both measured at 10 GHz, according to ASTM D2520. The thermosetting composition provides improved thermal stability at high temperature and excellent processability when used electronic applications as metal-clad laminates and build-up films.

To measure a thickness or a coverage of a resin present at a surface layer of a prepreg in a non-contact manner using a simple technique, a measurement method for a resin state which is a method for measuring a state of a resin present at a surface layer of a prepreg impregnated with the resin in an unidirectional reinforced fiber base material includes: irradiating the surface layer of the prepreg with light from an irradiation source; receiving reflected light from the surface layer of the prepreg by a sensor; and calculating at least one of a thickness or a coated state of the resin present at the surface layer of the prepreg from intensity of the reflected light.

Penetration-resistant composites and methods of forming penetration-resistant composites are described herein. The penetration-resistant composites include a woven or non-woven substrate; and an elastomeric binder covering at least a portion of the substrate. The elastomeric binder includes a polymeric base and particles dispersed within the polymeric base. The particles include one or more of amorphous silica particles, fumed silica particles, boron nitride particles, calcium chloride particles, aluminum oxide particles, calcium carbonate particles, graphite particles, metallic glass particles and silicon carbide particles. The particles have a concentration in a range of about 0 wt. % to about 80 wt. % of the elastomeric binder and have a size in a range of about 1 nanometers to 100 micrometers.

The present disclosure relates to a stitching yarn and non-crimp fabrics containing such yarn. The stitching yarn described herein is a multifilament stitching yarn characterized by two or more of the following properties: (a) comprises a plurality of polymeric fibers, (b) has a linear density of less than or equal to 80 dtex, (c) has a filament count of less than or equal to 0.8 times the dtex value of the stitching yarn, or (d) has a twist of less than 200 revolutions per meter (r/m). The present disclosure also relates to a fiber preform, composite material, and composite article containing the non-crimp fabric.