A laminated film exhibits a certain adhesive property to various adherends having shapes or different irregularity shapes. The laminated film includes a resin layer A on one surface of a substrate and a resin layer B on the other surface. The resin layer A has a ten-point average surface roughness Rz(a) of 1.5 μm or more and 5.0 μm or less and a storage elastic modulus G′ at 25° C. and 1 Hz of 3.0×10.sup.5 Pa or more.

A bulletproof garment fabric comprises parallel high strength fibers that are placed in layers. The layers are arranged in multiple orientations to resist bullet penetration stress and bonded to each other by precipitated ultrafine particles of nylon. The bonded high strength fibers resist the penetration load of a bullet and are thereby operative to prevent penetration of the bullet through the garment fabric. A porous nylon sheet is injection molded, and combined with strong fibrous materials having high modulus to form a layered sandwich that imparts strength and anti-ballistic properties to jackets, components and armor for vehicles and aircraft used in military applications.

A semicrystalline copolyester resin composition formed by twin screw extrusion of various ingredients includes copolyester resins, antiblock, slip and antifog additives. This semicrystalline copolyester resin can be extruded on to PET film or coextruded with PET resin to form clear PET films with antifog properties. These films with antifog properties are produced in a single step without the use of solvent and does not involve any secondary step for coating a separate antifog layer. This minimizes the cost and time required by a converter to make such clear antifog films. These films containing the heat seal copolyester resin can be heat sealed to clear APET trays. Contents within the trays, such as food, can be seen without fogging on the inside of the film that is used to seal the tray. The seals are strong and the peels are smooth giving a very good packaging performance.

The fiber-reinforced resin material of the present invention is a fiber-reinforced resin material having a laminated structure in which fiber assembly layers and thermoplastic resin layers are alternately located, wherein the fiber assembly layers are each an assembly of continuous fibers having thermoplastic resin particles attached to surfaces thereof, and the fiber-reinforced resin material has a higher elongation on one surface side than that on the other surface side. The fiber-reinforced resin structure is made of the present fiber-reinforced resin material. A method for manufacturing the present fiber-reinforced resin material includes: a stacking step of stacking a sheet-shaped product of the continuous fibers that serves as the fiber assembly layer and a resin sheet that serves as the thermoplastic resin layer so as to obtain the laminated structure; and a hot-pressing step of heating and compressing a stacked product obtained through the stacking step in a stacking direction.

The present invention relates to a reinforcement material including at least one fiber reinforcement associated on at least one of its faces with a porous layer, the porous layer(s) representing no more than 10% of the total weight of the reinforcement material, preferably from 0.5 to 10% of the total weight of the reinforcement material, and most preferably from 2 to 6% of the total weight of the reinforcement material, characterized in that the porous layer contains a partially cross-linked thermoplastic polymer. Another object of the invention is a precursor material of such a reinforcement material, as well as their preparation method and the methods for manufacturing a preform or a composite part from such materials.

A prepreg which is suitable for producing a fiber-reinforced composite material in a short period of time without using an autoclave, can produce a fiber-reinforced composite material in which the occurrence of voids is suppressed and excellent impact resistance is achieved, and has excellent handling properties; and a fiber-reinforced composite material using the prepreg. This prepreg is a prepreg in which a reinforcing fiber [A] arranged in layers is partially impregnated with an epoxy resin composition containing an epoxy resin [B] and a curing agent [C], wherein the impregnation rate φ is 30-95%, and a thermoplastic resin [D] insoluble in the epoxy resin [B] is unevenly distributed on both surfaces of the prepreg. In addition, in the layers of the reinforcing fiber [A], epoxy resin composition-unimpregnated portions are localized on one surface of the prepreg, and the localization parameter a, which defines the degree of localization, is in the range of 0.10<σ<0.45.

A prepreg having high processability and laminating performance and a method to produce such a prepreg in an industrially advantageous way is described, the prepreg comprising at least the components [A] to [E] shown below, and having a structure incorporating a first layer composed mainly of the component [A] and a first epoxy resin composition that contains the components [B] to [D] but which is substantially free of the component [E], and a second layer composed mainly of a second epoxy resin composition that contains the components [B] to [E] and which is disposed adjacent to each surface of the first layer, the second epoxy resin composition being characterized in that its component [D] has a weight-average molecular weight of 2,000 to 30,000 g/mol and accounts for 5 to 15 parts by mass relative to the total quantity of its components [B] to [E], which accounts for 100 parts by mass, [A] carbon fiber, [B] epoxy resin, [C] curing agent, [D] thermoplastic resin, and [E] particles containing a thermoplastic resin as primary component and having a volume-average particle diameter of 5 to 50 μm.

In the field of decorative floor coverings, decorative panels are known having a MDF (Medium Density Board) or HDF (High Density Board) based core layer on top of which a decorative substrate is attached to provide the panels a desired appearance. The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel or a wall panel. The invention also relates to a floor covering consisting of a plurality of mutually coupled panels.

Modifying agents for polyolefin resins and laminated films including the modifying agents generally include an ester compound and a nonionic surfactant. The mass ratio of the content of the ester compound to the content of the nonionic surfactant is (ester compound)/(nonionic surfactant)=10/90 to 30/70. The ester compound is at least one selected from the group consisting of partial esters of a dihydric alcohol having 2 to 4 carbon atoms with an aliphatic monocarboxylic acid having 8 to 22 carbon atoms. The nonionic surfactant is at least one selected from the group consisting of a partial ester of a tri- to hexahydric alcohol with an aliphatic monocarboxylic acid having 8 to 22 carbon atoms, a specific ester compound, and a specific ether compound.

A layered product including at least one natural fiber layer including a web of natural fibers and at least one SAP layer including a non-woven substrate including a thermoplastic polymer fibers and a superabsorbent polymer adhered to thermoplastic polymer fibers, wherein the non-woven substrate is a high loft fabric, for example an airlaid or spunlaid non-woven, and wherein the natural fiber layer and the SAP layer are connected to each other by needle punching, stitch bonding or using an adhesive. A process to prepare the layered product and the use of the layered product in for example horticulture.