Provided is an optical laminate capable of suppressing deterioration of visibility in a high-temperature environment. The optical laminate comprises a layer comprising a metal oxide on a plastic film, wherein the emissivity of the optical laminate for light with a wavelength range of 2000 nm or more and 22000 nm or less is 0.27 or more and 0.75 or less as measured from the side of the layer comprising a metal oxide with respect to the plastic film.

Provided is a laminate having low air permeability and excellent moisture permeability in a low temperature and low humidity environment. The laminate is provided with a porous substrate and a moisture-permeable membrane disposed on one side of the porous substrate, the laminate having an air resistance of 3000 seconds/100 cc or greater based on the Gurley method according to JIS P8117-2009 and a first moisture permeability of 300 g/(m.sup.2.Math.24 h) or greater based on a moisture permeability testing method (the cup method) according to JIS Z0208-1976 under the conditions of a temperature of 5° C., a relative humidity of 45%, and a wind speed of 0.2 m/s or less.

The invention relates to low density fluoropolymer foam, and preferably polyvinylidene fluoride (PVDF) foam, such as that made with KYNAR PVDF resins, and articles made of the foam. The foam is produced by adding microspheres containing blowing agents to the polymer and processing it through an extruder. The microspheres consist of a hard shell containing a physical blowing agent. The shell softens at elevated temperatures and allows the expansion of the blowing agent, and microsphere to create larger voids within the polymer matrix. By proper control of the polymer composition, viscosity, processing temperature, blowing agent selection, loading ratio, and finishing conditions, useful articles such as foamed PVDF pipe, tube, profiles, film, wire jacketing and other articles can be produced. The microspheres may be added to the fluoropolymer matrix by several means, including as part of a masterbatch with a compatible polymer carrier.

A composite film comprising a of amide substrate layer having a first and second surface, and a primer coating layer disposed on the first surface of the substrate layer, wherein the primer coating layer is derived from a composition comprising an acid copolymer resin, an organic crosslinker and an acid catalyst. A heat-sealable coating is applied on the primer.

A porous film includes a porous base and a porous layer containing particles A disposed at least on one side thereof, wherein the particles A contain a mixture including a polymer formed from a fluorine-containing (meth)acrylate monomer and a polymer formed from a (meth)acrylate monomer having a hydroxyl group or a copolymer including a fluorine-containing (meth)acrylate monomer and a (meth)acrylate monomer having a hydroxyl group, with the (meth)acrylate monomer having a hydroxyl group accounting for more than 2 mass% and 30 mass% or less of all components of the particles A, which account for 100 mass%.

A polymer composition for use in the removal and recovery of oil slicks or spills floating on the surfaces of bodies or water or present on land, such as beaches comprising a foam of a blend of polyethylene and an ethylene-alkyl acrylate copolymer and a process for using such foams in the selective removal of oil from fresh water or salt water and the recovery of the absorbed oils from the foams is disclosed. The polymer composition is also for use in other applications in which absorption of liquids is desired.

The present disclosure provides methods of improving adhesion of a non-di-(2-ethylhexyl)phthalate (DEHP) plasticized polyvinyl chloride (PVC) to an acrylic-based polymer or an ABS-based polymer. Such methods may comprise blending the acrylic-based polymer or ABS-based polymer with an impact modifier so that a rubber content in the acrylic-based polymer or ABS-based polymer is greater than 12% (w/w). Also provided are components of a device (e.g., a medical device) made by the disclosed methods.

Provided are a fiber-reinforced composite material excellent in heat resistance and strength properties, an epoxy resin composition to obtain the fiber-reinforced composite material, and a prepreg obtained by using the epoxy resin composition. Further provided are a fiber-reinforced composite material having less volatile matters during the curing time, and having excellent heat resistance and strength properties, an epoxy resin composition to obtain the fiber-reinforced composite material, and a prepreg obtained by using the epoxy resin composition. Provided are: an epoxy resin composition for a fiber-reinforced composite material, comprising an amine type epoxy resin [A], an aromatic amine curing agent [B], and a block copolymer [C] having a reactive group capable of reacting with an epoxy resin; a prepreg obtained by impregnating a reinforced fiber with the epoxy resin composition; and a fiber-reinforced composite material obtained by curing the prepreg. Further provided are: an epoxy resin composition comprising an epoxy resin [A] having two or more of four- or more-membered ring structures, and having either one of a glycidyl amino group directly bonded to the ring structure or a glycidyl ether group directly bonded to the ring structure, epoxy resin [B] having three or more of functional groups, a curing agent [C], and an elastomer component [D]; a prepreg obtained by impregnating a reinforced fiber with the epoxy resin composition; and a fiber-reinforced composite material obtained by curing the prepreg.

A gas barrier polymer of the present invention is formed by heating a mixture including a polycarboxylic acid and a polyamine compound, in which, in an infrared absorption spectrum of the gas barrier polymer, when a total peak area in a range of an absorption band of equal to or more than 1493 cm.sup.−3 and equal to or less than 1780 cm.sup.−1 is A, and a total peak area in a range of an absorption band of equal to or more than 1598 cm.sup.−1 and equal to or less than 1690 cm.sup.−1 is B, an area ratio of an amide bond indicated by B/A is 0.370 or more.

A component (A1) thereof includes an epoxy resin having at least one of a naphthalene skeleton or a biphenyl skeleton. A component (A2) thereof includes a phenolic resin having at least one of the naphthalene skeleton or the biphenyl skeleton. A component (B) thereof includes a high molecular weight substance having structures expressed by at least formulae (b2) and (b3) out of formulae (b1), (b2), and (b3) and having a weight average molecular weight equal to or greater than 200,000 and equal to or less than 850,000. A component (C1) thereof includes a first filler obtained by subjecting a first inorganic filler to surface treatment using a first silane coupling agent expressed by formula (c1). A component (C2) thereof includes a second filler obtained by subjecting a second inorganic filler to surface treatment using a second silane coupling agent expressed by formula (c2).