A component (A1) thereof includes an epoxy resin having at least one of a naphthalene skeleton or a biphenyl skeleton. A component (A2) thereof includes a phenolic resin having at least one of the naphthalene skeleton or the biphenyl skeleton. A component (B) thereof includes a high molecular weight substance having structures expressed by at least formulae (b2) and (b3) out of formulae (b1), (b2), and (b3) and having a weight average molecular weight equal to or greater than 200,000 and equal to or less than 850,000. A component (C1) thereof includes a first filler obtained by subjecting a first inorganic filler to surface treatment using a first silane coupling agent expressed by formula (c1). A component (C2) thereof includes a second filler obtained by subjecting a second inorganic filler to surface treatment using a second silane coupling agent expressed by formula (c2).

A method for forming a thermoplastic body having regions with varied material composition and/or porosity. Powder blends comprising a thermoplastic polymer, a sacrificial porogen and an inorganic reinforcement or filler are molded to form complementary parts with closely toleranced mating surfaces. The parts are formed discretely, assembled and compression molded to provide a unitary article that is free from discernible boundaries between the assembled parts. Each part in the assembly has differences in composition and/or porosity, and the assembly has accurate physical features throughout the sections of the formed article, without distortion and nonuniformities caused by variable compaction and densification rates in methods that involve compression molding powder blends in a single step.

A thermosetting resin composition and a prepreg and a laminated board prepared therefrom. The thermosetting resin composition contains the following components in parts by weight: 50-150 parts of a cyanate; 30-100 parts of an epoxy resin; 5-70 parts of styrene-maleic anhydride; 20-100 parts of a polyphenyl ether; 30-100 parts of a halogen-free flame retardant; 0.05-5 parts of a curing accelerator; and 50-200 parts of a filler. The prepreg and laminated board prepared from the thermosetting resin composition have comprehensive performances such as a low dielectric constant, a low dielectric loss, an excellent flame retardance, heat resistance and moisture resistance, etc., and are suitable for use in a halogen-free high-frequency multilayer circuit board.

A fiber-reinforced polymer alloy substrate, in which continuous reinforcing fibers are arranged in parallel and are impregnated with a polymer alloy, is characterized in that: a polymer alloy obtained by combining thermoplastic resins of at least two types is used as the polymer alloy; the fiber volume content is in the range of 40 to 70% by volume; and the dispersion parameter D of the fibers is 90% or more. In the obtained fiber-reinforced polymer alloy substrate, the reinforcing fibers are dispersed with high uniformity, and high mechanical properties and heat resistance are stably exhibited with low variation.

The rubberized textile material for a belt textile ply is provided on at least one side of a textile web with a peroxidically crosslinkable ethylene-alpha-olefin-diene terpolymer rubber mixture, preferably an EPDM mixture. In this rubberization mixture the third monomer content (diene content) of the EPDM is preferably at least 4% and the rubber mixture contains: a peroxidic crosslinker, a mineral oil having an aromatics proportion of at least 50 percent by weight and at least one reactive phenol and/or reactive phenol resin capable of binding to the double bonds of unsaturated polymers. The reactive phenol and/or phenol resin and the mineral oil are present in the rubber mixture in a content of altogether 5 to 60 phr. The rubberization has an exceptional manufacturing tack coupled with good adhesion and good dynamic properties.

A prepreg contains components [A] to [E], wherein 85% by mass or more of the component [E] is present in a range within 9% of the average thickness of the prepreg from each surface of the prepreg, and a range within 7% of the average thickness of the prepreg from each surface of the prepreg is composed of a first resin composition containing components [B] to [E]. [A] a carbon fiber, [B] an epoxy resin having two or more glycidyl groups in one molecule, [C] an aromatic amine compound, [D] a thermoplastic resin having a polyarylether skeleton, and [E] particles having a number average primary particle size of 5 to 50 μm, having a content ratio (% by mass) of thermoplastic resin and thermosetting resin of 95:5 to 70:30.

A method for forming a thermoplastic body having regions with varied material composition and/or porosity. Powder blends comprising a thermoplastic polymer, a sacrificial porogen and an inorganic reinforcement or filler are molded to form complementary parts with closely toleranced mating surfaces. The parts are formed discretely, assembled and compression molded to provide a unitary article that is free from discernible boundaries between the assembled parts. Each part in the assembly has differences in composition and/or porosity, and the assembly has accurate physical features throughout the sections of the formed article, without distortion and nonuniformities caused by variable compaction and densification rates in methods that involve compression molding powder blends in a single step.

The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers.

A fiber-reinforced polymer alloy substrate, in which continuous reinforcing fibers are arranged in parallel and are impregnated with a polymer alloy, is characterized in that: a polymer alloy obtained by combining thermoplastic resins of at least two types is used as the polymer alloy; the fiber volume content is in the range of 40 to 70% by volume; and the dispersion parameter D of the fibers is 90% or more. In the obtained fiber-reinforced polymer alloy substrate, the reinforcing fibers are dispersed with high uniformity, and high mechanical properties and heat resistance are stably exhibited with low variation.

A metal-fiber reinforced resin material composite is provided which improves the shear strength between a metallic member and a fiber reinforced material by more strongly bonding the metallic member and the fiber reinforced resin member, and which is very light and has excellent workability while increasing strength.

[Solution]

This metal-fiber reinforced resin material composite is provided with a metallic member and with a fiber reinforced resin material that is stacked on at least one surface of the metallic member and combined with the metallic member, wherein the fiber reinforced resin material comprises a matrix resin containing a thermoplastic resin, a reinforcing fiber material included in the matrix resin, and a resin layer interposed between the reinforcing fiber material and the metallic member and comprising a resin of the same type as the matrix resin. The shear strength of the metallic member and the fiber reinforced resin material is greater than or equal to 0.8 MPa.