In one embodiment, the disclosure provides a film, which may be oriented, cast, or blown, that includes a core layer having a first side and a second side, wherein the core layer comprises hydrocarbon resin and polypropylene. Further, the film may include a first tie layer on the first side, wherein the first tie layer consists of polypropylene and about 5% or less of additives with exclusion of hydrocarbon resin (“HCR”), wherein the polypropylene is standard-crystalline polypropylene, high-crystalline polypropylene, or a mixture thereof, but preferably, it is a majority of high-crystalline polypropylene. Further still, the film may include a first skin layer on the first tie layer, and, also a coating on the first skin layer, wherein the coating comprises acrylic or acetate polymers or combinations thereof. The film maintains a minimum seal temperature of 300 g in.sup.−1 seal strength as compared to the film without any HCR.

A fiber optic cable in the present disclosure comprises: an outer tube having an inner surface and an outer surface; a fiber in metal tube (FIMT) comprising one or more optical fibers, wherein the FIMT is disposed within the outer tube, and wherein the outer surface of the FIMT and the inner surface of the outer tube form an annular space; and a cured gelling material in the annular space. By incorporating the cured gelling material into the annular space, fluid migration through the annular space can be reduced, and sheer stress for strain coupling of the FIMT and the outer tube can be increased.

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 thermosetting resin composition containing a thermosetting resin (A), boron nitride (B), and a dispersant (C) with a pH of 8 or higher.

The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and filter substrates including the fine fibers.

A sized reinforcing filler, comprising a filler and a sizing agent disposed on at least a portion of the filler, to be used for reinforcement for plastics is disclosed. The sizing agent is based upon at least one of a polyvinyl alcohol, an ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer, a silane-grafted polyvinyl alcohol and a silane-grafted ethylene/vinyl alcohol copolymer. The polyvinyl alcohol is useful as a size for all types of fibers and particles to reinforce all types of commodity and engineering plastics, particularly polyolefin resins, to form polymer composites. As such, polymer composites reinforced with such sized reinforcing fillers, as well as articles, components, and products including such polymers composites, are also disclosed.

The present application relates to an optical film and a method for producing a polarizing plate. The present application can provide an optical film satisfying optical and mechanical durability required in a polarizing plate effectively and capable of forming a polarizing plate without causing bending when applied to a display device, and a method for producing a polarizing plate to which the optical film is applied. The present application can provide an optical film capable of realizing the required optical and mechanical durability without causing bending even in a polarizing plate applied to a thin display device and/or a thin polarizing plate, and a method for producing a polarizing plate to which the optical film is applied.

A form birefringent optical element includes a structured layer and a dielectric environment disposed over the structured layer. At least one of the structured layer and the dielectric environment includes a nanovoided polymer, the nanovoided polymer having a first refractive index in an unactuated state and a second refractive index different than the first refractive index in an actuated state. Actuation of the nanovoided polymer can be used to reversibly control the form birefringence of the optical element. Various other apparatuses, systems, materials, and methods are also disclosed.

The present invention relates to a method for preparing a benzoxazine-containing resin composition and a prepreg and a laminate made therefrom. The method for preparing a benzoxazine-containing resin composition is adding an acidic filler to a benzoxazine-containing resin composition. By adding an acidic filler to the benzoxazine-containing resin composition, the present invention promotes greatly the polymerization reaction of benzoxazine and epoxy resin, reduces the curing temperature required for polymerization of benzoxazine and epoxy resin. The laminate prepared from the benzoxazine-containing resin composition, to which an acidic filler is added, has high anti-stripping stability, high glass transition temperature, low water absorption, high heat resistance, high bending strength and good processability, and can achieve low coefficient of thermal expansion.

A proton-conductive membrane includes a hydrophobic organic polymer and a hydrophilic proton-conductive component. The hydrophilic proton-conductive component includes one of an urea-containing material and a complex formed from an acidic substance and a basic substance, and a combination thereof. The hydrophilic proton-conductive component is present in an amount ranging from 23 parts by weight to 70 parts by weight based on 100 parts by weight of the proton-conductive membrane.