The present invention relates to a liquid (meth)acrylic syrup for impregnating a fibrous substrate. The present invention relates in particular to a viscous liquid syrup mainly containing methacrylic or acrylic components. The invention also relates to a process for manufacturing such a syrup. The invention also relates to a process for impregnating a fibrous substrate comprising long glass fibers with said viscous liquid syrup. The invention also relates to a fibrous substrate preimpregnated with said syrup, which is useful for manufacturing transparent parts especially for the building sector. The present invention also relates to a manufacturing process for manufacturing transparent parts obtained via this process.

A curable composition for liquid resin infusion (LRI) and a manufacturing process for producing a molded article. The curable composition includes: a) no more than 5.0 wt % of a thermoplastic polymer; b) no more than 5.0 wt % of nano-sized core-shell particles; c) no more than 5.0 wt % of nano-sized inorganic particles; d) an epoxy resin component; and e) one or more amine curing agent(s),
wherein the initial viscosity of said curable composition is no more than 5 Poise at a temperature within the temperature range of from about 80 C. to about 130 C.

Provided are methods of forming composite structure over non-planar base structures and composite tools extending over cavities of the base structures. A tool may be formed from a composite layup cured on a flat mold. While applying the tool to the base structure, the tool may be bent around or about a bend axis. The bend axis may be parallel to continuous fibers within the tool. These fibers may span the full dimension of tool in the direction of the fibers. The continuous fibers extend across the cavity and provide stiffness to the tool in one direction even after bending of the tool. As such, the tool may withstand substantial forces in the direction perpendicular to its surface without collapsing into the cavity. In some embodiments, a composite structure may cured over the tool without impacting the size of the cavity on the other side of the tool.

A process for manufacturing an undergarment having two superimposed textiles, comprising depositing on certain parts of reinforcements (8) comprising a thick layer of a shaped memory foam elastic material, the polymerization of this material and also the shaping of the textiles of the undergarment by thermoforming, characterized in that it comprises a step of depositing, on the entire surface of at least the textiles, a thin layer of an elastic adhesive-bonding material, and then a step of polymerizing this thin layer of adhesive bonding during the thermoforming for shaping, and in that it comprises a step of prior depositing, on the textile receiving the layer of reinforcement (8), of a barrier layer of an elastic material, which is polymerized before the depositing of this reinforcement.

A method for producing a sheet-like composite fabric material, in particular a rubberized fabric or a fabric provided with a polymer preparation, for covering drive belts, the composite fabric material comprising a textile integrated in a matrix of elastomeric material, preferably at least one fabric layer integrated in a rubber matrix, the textile or the fabric layer and the elastomeric material being introduced into a gap between a band and a cylindrical molding wheel and molded to form a composite material between the band and the molding wheel at a temperature below the vulcanization temperature, the band looping around the molding wheel at a looping angle under pressure. Likewise disclosed is a drive belt with a covering of composite material produced according to the invention.

An assembly of mating subassemblies having dimensional control features for a motor vehicle is provided. The assembly includes a composite molded first subassembly having a first set of molded-in dimensional control features. The assembly also includes an injection molded second subassembly having a second set of molded-in dimensional control features. The first and second sets of dimensional control features are integrally formed on their respective subassemblies to permit contact between the first and second sets of control features when the subassemblies are assembled together.

An assembly of mating subassemblies having dimensional control features for a motor vehicle is provided. The assembly includes a composite molded first subassembly having a first set of molded-in dimensional control features. The assembly also includes an injection molded second subassembly having a second set of molded-in dimensional control features. The first and second sets of dimensional control features are integrally formed on their respective subassemblies to permit contact between the first and second sets of control features when the subassemblies are assembled together.

The invention relates to a process for the production of saturated fiber structures. The process includes (a) introduction of a fiber structure onto a conveyor belt; (b) application of a solution including monomer and optionally including activator, and optionally including catalyst in at least one line to the fiber structure; (c) passage of the fiber structure with the solution through at least one roll pair in which pressure is exerted on the fiber structure; and (d) cooling of the saturated fiber structure, so that the monomer solidifies.

There is provided a method for repairing or reinforcing a structure. The method includes the steps of: providing an adhesive sheet comprising an adhesive layer comprising at least a curable resin composition whose curing is promoted by irradiation with ionizing radiation and a curing aid which generates a basic substance by irradiation with ionizing radiation; attaching the adhesive sheet to a surface of the structure; and curing the adhesive layer of the adhesive sheet in a state where the adhesive layer is exposed.

A method of manufacturing an absorbent article. The method includes a first step of forming the absorbent body provided with the absorbent body concave portion; a second step of forming core embosses at least on both sides of the absorbent body concave portion by compressing the absorbent body from the skin-contacting side of the absorbent body; and a third step of stacking the liquid permeable topsheet on a top surface side of the absorbent body and forming the embossed portion.