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.

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer consisting essentially of one or more ethylene-propylene copolymers. Further still, the multilayer film may include a second skin layer consisting essentially of one or more ethylene-propylene-butylene terpolymers. And yet further, the multilayer film may be oriented in at least one direction, and at least two layers of the multilayer film are coextruded.

A charging member for an image forming apparatus may include a conductive support and a surface layer on the conductive support and not in contact with a photosensitive member. The surface layer may comprise a urethane foam including foam cells and having a foam structure based on the foam cells, the foam cells including open cells.

A coextruded, multi-layered, water vapor-impermeable, tubular, and seamless food casing having at least three layers is provided. The layers include at least one porous layer having a porous food contact side suitable for transferring food additives having a porous food contact side, at least one carrier layer based on at least one aliphatic and/or partially aromatic (co-)polyamide, and at least one water vapor-impermeable layer. At least one adhesive layer including an adhesion-promoting component is arranged between the adjoining layers or an adhesion-promoting component is contained in one or more of the water vapor-impermeable layer(s). At least one porous layer includes an aliphatic (co-)polyamide and a hydrophilic (co-)polymer having a mean molar mass M.sub.w of at least 8000 Da. A method for producing the food casing is provided. The food casing is used as an artificial sausage casing, especially, for cooked or boiled sausage.

Embodiments of the present disclosure are directed to multilayer structures. The multilayer structures may include a first layer and a barrier layer. The first layer may include, based on the total weight of the first layer, from 90 wt. % to 99.5 wt. % of an ethylene/alpha-olefin interpolymer having a density of from 0.945 g/cc to 0.970 g/cc and from 0.5 wt. % to 10 wt. % of a compatibilizer. The compatibilizer may include an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin elastomer having a density of from 0.850 g/cc to 0.910 g/cc and a melt viscosity of greater than 200,000 cP, when measured at 177 C.

Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component that is a combination of a hydrocarbon epoxy novolac resin and a trifunctional epoxy resin and optionally a tetrafunctional epoxy resin. The resin matrix includes polyethersulfone as a toughening agent and a thermoplastic particle component.

A charging member, including: a conductive support; and a conductive body mounted on the conductive support, in which the conductive body includes an elastic layer located on the conductive support, a resin layer located on the elastic layer, and a coating layer located on the resin layer to form an outermost surface of the conductive body, and the coating layer contains a polysiloxane compound having a molecular structure that includes an Si—O—Zr bond.

Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component that is a combination of a hydrocarbon epoxy novolac resin and a trifunctional epoxy resin and a tetrafunctional epoxy resin. The resin matrix includes polyethersulfone as a toughening agent and a thermoplastic particle component that includes a mixture of polyamide particles and polyimide particles.

Provided are composite particles in which reinforcing fibers adhere to the surface of thermoplastic resin expanded beads via a thermosetting resin being in an uncured state, a cured product of the composite particles, an in-mold molded article of the composite particles, a laminate of the composite particles and a reinforcing fiber sheet material, a composite of the composite particles, and a method for producing composite particles.

A prepreg comprising the following constituent elements (A), (B), and (C), the constituent element (C) being present in a surface layer of the prepreg: Constituent element (A): a reinforcing fiber base material; Constituent element (B): an epoxy resin composition containing a curing agent, the epoxy resin composition being cured within the range of from 90° C. to 140° C. (inclusive); and Constituent element (C): particles of a thermoplastic resin having a melting point or a glass transition temperature within the range of from 90° C. to 140° C. (inclusive).