The method includes: a) a step of stacking and shaping a prepreg according to the shape of a surface of the structure; b) a step of vacuum-pressurizing the stacked and shaped prepreg; c) a step of heating and curing the vacuum-pressurized prepreg to produce a cured product of the prepreg; and d) a step of bonding the cured product to the surface of the structure. The prepreg includes: a resin composition including an ethylenically unsaturated group-containing resin (A) and a polymerization initiator (B); and reinforcement fibers (C). The polymerization initiator (B) has a 10-hour half-life temperature of 60? C. to 75? C. This method for reinforcing and repairing the structure allows a structure having excellent workability and excellent mechanical strength to be obtained.

A method for producing a fiber for reinforcing rubber, comprising applying an adhesion treatment liquid containing a thermoplastic elastomer, a blocked polyisocyanate, and a rubber latex to a fiber cord to obtain a fiber for reinforcing rubber, wherein the thermoplastic elastomer is incorporated in the form of a water dispersion into the adhesion treatment liquid, wherein the thermoplastic elastomer particles in the water dispersion have an average particle diameter of 0.01 to 1.0 ?m.

The present invention provides a composite material and a sensing platform unit comprising a self-healing polymer matrix and at least two conductive nanomaterials embedded therein. The polymer matrix has a multi-layer structure comprising a first layer comprising a network of a first nanomaterial, which resistance changes in response to a mechanical damage inflicted on the polymer matrix; and a second layer comprising a network of a second nanomaterial, configured to generate heat under applied voltage. The network of the first nanomaterial and the network of the second nanomaterial are electrically connected to a mutual control circuit which is configured to apply voltage to the second nanomaterial upon a change in resistance of the first nanomaterial. The sensing platform unit further comprises a third layer comprising a network of a third nanomaterial configured to detect at least one of pressure, strain, temperature, pH, humidity, and volatile organic compounds (VOCs).

A medical device include a polyurethane layer and a hydro-specific layer that is covalently bonded to the polyurethane layer. The polyurethane layer may include a plurality of monomer residues, at least some of which include pendent alkene groups. The hydro-specific layer may be a hydrophilic layer or a hydrophobic layer depending on the specific molecules used to form the hydro-specific layer. As an example, the hydro-specific layer may be covalently bonded to the polyurethane layer via a thiol-ene or alkene hydrothiolation reaction between the plurality of pendent alkene groups and a plurality of thiol-terminated hydro-specific molecules forming the hydro-specific layer.

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid comprising a mixture of: (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid blocked polymer scaffold and advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, with the intermediate containing the second solidifiable component; and then (d) solidifying and/or curing the second solidifiable component to form from said three-dimensional intermediate the three-dimensional object.

A novel 2-component system and a process using the system produce semifinished component products that are stable in storage, in particular sheet moulding compounds (SMC) and mouldings produced therefrom (composite components). The process has five stages, including three different reactive steps which lead to successively increasing hardness levels. The 2-component system is applied to fibre material, e.g. carbon fibres, glass fibres or polymer fibres, or the 2-component system is brought into contact with short fibres, whereupon a first reaction takes place. This is followed by thermal polymerization initiated by redox initiation or with the aid of radiation or of plasma applications. Polymerization produces thermoplastics or, respectively, thermoplastic prepregs, which can then subsequently be moulded. Polyols present can finally be crosslinked, via elevated temperature, with uretdiones already present in the system. It is thus possible to produce dimensionally stable thermosets or crosslinked composite components.

The present invention provides a method for producing an antifouling film capable of long-term continuous production of an antifouling film having excellent antifouling properties. The method for producing an antifouling film of the present invention includes Process (1) of applying a resin to a surface of a substrate; Process (2) of applying a second release agent to a surface of a die coated with a first release agent; Process (3) of pushing the substrate to the surface of the die coated with the second release agent with the resin in between to form an uneven structure on a surface of the resin; and Process (4) of curing the resin including the uneven structure on the surface thereof to form a polymer layer. The resin contains an antifouling agent that contains a predetermined compound. The first release agent contains a predetermined compound. The second release agent contains a predetermined compound.

Provided for example is a method for producing a resin foam product with an internal cavity, the method including: preparing a composition including a curable material and a foaming agent; forming a resin structure with an internal cavity communicating with an outer space by curing the composition; blowing a fluid to the resin structure; and fabricating the resin foam product by foaming the resin structure with the fluid blown thereto.

There is provided a carbon fiber sheet molding composition including a vinyl ester resin type system. The carbon fiber distribution is random. The carbon fiber length is from about 0.5 inches to two inches. The carbon fiber loading is from about 35% to 65%, and includes epoxy sized carbon fiber and vinyl sized carbon fiber effective to achieve predetermined significant increase in desired mechanical properties.

The present invention relates to a laminated film for fiber adhesion and/or fiber sheet surface protection in which a layer [I] containing a thermosetting composition [i] and a support film [II] are laminated, wherein the thermosetting composition [i] contains a thermal polymerization initiator (C) having a 10-hour half-life temperature of 65 C. or higher.