A multifunctional diffusion barrier comprising at least one organic polymer and a 2D graphene or 2D graphene derivative material and a method for preparing the multifunctional barrier. The multifunctional diffusion barrier can be used as a liquid and/or gas barrier, or as structural material, or as sealing material, or as a self-cleaning material or as protective material against UV radiation in aeronautical, automotive, marine or building field. The multifunctional diffusion barrier is suitable in producing parts of aircraft such as a fuel tank, a fuel tank conduit and a gasket.

Provided is a gas barrier packaging material including a base and a cured resin layer, the base having a surface constituted of an inorganic substance. The cured resin layer is a cured product of an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, and a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.60 to 20.

Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R.sup.1 to R.sup.3 are identical or different and are a group represented by Formula (1a), wherein L.sup.1 and L.sup.2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L.sup.3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R.sup.1 to R.sup.3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.

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Provided is an epoxy resin composition including an epoxy resin, an epoxy resin curing agent containing an amine-based curing agent, and an acidic compound, wherein a ratio (basic nitrogen/acid groups) of a molar equivalent of basic nitrogen in the epoxy resin composition to a molar equivalent of acid groups derived from the acidic compound is from 0.10 to 3.0. Also provided are a gas barrier film and a laminate in which the epoxy resin composition is used.

A polyurethane composition suitable for coating a surface of a substrate. The polyurethane composition can include an aliphatic polyester urethane matrix and a fluorinated ionic antistatic additive. The aliphatic polyester urethane matrix can comprise an aliphatic diisocyanate, a polyester polyol having a polyester diol and a polyester triol, and sulfonated polyester urethane polyol.

Described herein is a multilayered article and methods of making and using such articles. The multilayered article comprises: .Math. (a) a microsphere layer comprising a plurality of microspheres (11) disposed in a monolayer; .Math. (b) a bead bonding layer (12) comprising a first major surface and a second opposing major surface wherein the plurality of microspheres is at least partially embedded in the first major surface of the bead bonding layer, and wherein the bead bonding layer comprises a thermoset polyurethane, and wherein the thermoset polyurethane is derived from one or more liquid polyols; and .Math. (c) an elastomeric layer (14) disposed on the second opposing major surface of the bead bonding layer.

Provided is a member in which the strength of a second layer located on the outermost surface of the exterior is improved in order to sufficiently exhibit and maintain the functions, to thereby improve impact resistance and scratch resistance. The member is a member including a base material, a first layer, a second layer, and a third layer in the stated order, wherein the first layer is an inorganic porous layer in which a plurality of inorganic particles are joined to each other, and the first layer and the second layer have a total thickness of 0.3 μm or more and 2 μm or less, wherein the third layer contains a resin and has a thickness of 0.4 μm or more and 2,000 μm or less, and wherein the second layer contains the inorganic particles and the resin.

A flexible substrate, a manufacturing method thereof, and a flexible display device are provided. The method includes: step S10, forming a first aerogel layer with a cross-linked structure and a nanoporous structure on a substrate; step S20: forming an inorganic layer on the first aerogel layer; step S30, forming a second flexible substrate layer on the first aerogel layer, and allowing the second flexible substrate layer to cover the inorganic layer; and step S40, peeling the first aerogel layer, the inorganic layer, and the second flexible substrate layer from the substrate to form the flexible substrate.

A barrier film laminate (1) comprising an organic layer (4) that is situated in between two inorganic layers (2,3). The organic layer comprises submicron getter particles (5) at an amount between 0.01 and 0.9% by weight. The barrier film laminate can be used for encapsulating organic electronic devices such as OLEDs. The long term homogenous transparency makes this laminate in particular suited for protecting the light emitting side of an OLED.

The present invention is a laminate film comprising a plastic film, and an inorganic layer and an organic layer containing a 1,3,5-triazine derivative laid on at least one surface of the plastic film, wherein the 1,3,5-triazine derivative has a sulfur-containing group as a substituent on at least one of 2, 4 and 6 positions.