Abstract:
Disclosed is a biodegradable sheet prepared from biodegradable material comprising a gas barrier material, wherein the gas barrier material may be a nanoclay and/or polyvinyl alcohol.
Abstract:
A method for preparing a graphene oxide/white carbon black/rubber nanocomposite material is described. The prepared graphene oxide/white carbon black/rubber nanocomposite material contains nanoscale graphene oxide and white carbon black that are highly dispersed. The nanocomposite material has a relatively high modulus, excellent wear resistance and tear resistance, a relatively low rolling resistance, and at the same time has a low air-permeability and excellent self-healing capability.
Abstract:
The present invention provides: a gas barrier film comprising a cured resin layer and a gas barrier layer, the gas barrier layer being provided on at least one side of the cured resin layer, the cured resin layer being a layer formed of a cured product of a curable resin composition that includes (A) a thermoplastic resin having a glass transition temperature (Tg) of 140° C. or more, and (B) a curable monomer, the gas barrier film having a water vapor transmission rate of 1 g/m2/day or less at a temperature of 40° C. and a relative humidity of 90%; a method for producing the gas barrier film; a gas barrier film laminate comprising the gas barrier film; an electronic device member comprising the gas barrier film; an electronic device member comprising the gas barrier film laminate; an electronic device comprising the electronic device member. Since the gas barrier film and the gas barrier film laminate of the present invention exhibits excellent heat resistance, excellent solvent resistance, excellent interlayer adhesion, and an excellent gas barrier capability, has a low birefringence, and exhibits excellent optical isotropy, the gas barrier film and the gas barrier film laminate may suitably be used as an electronic device member.
Abstract:
A container comprising a polyester composition with enhanced carbon dioxide and oxygen barrier properties is provided. The polyester composition comprises a polyester and a gas barrier enhancing additive. In a particular embodiment, the gas barrier enhancing additive comprises a compound having the chemical formula: X—(X1)s—COO—(X2)t—X3—(X4)u—OOC—(X5)v—X6 or X—(X1)s—OOC—(X2)t—X3—(X4)u—COO—(X5)v—X6
Abstract:
Provided are aqueous coating liquids that contain ultrafine inorganic compound particles with good dispersibility, and gas barrier laminates of excellent transparency and gas barrier properties that have a layer formed from the coating liquid. The coating liquid includes ultrafine inorganic compound particles, a polyester resin, a sodium polycarboxylate and water. The gas barrier laminate includes a substrate and a gas barrier layer formed on the substrate, wherein the gas barrier layer has a layer (A) formed from the coating liquid and a layer (B) containing a polycarboxylic acid polymer.
Abstract:
A coating solution comprising: a first solvent; 0.1 to 30 parts by weight of a polycarboxylic acid-based polymer relative to 100 parts by weight of the solvent; 0.01 to 0.35 chemical equivalent of an alkali metal compound relative to an amount of carboxyl group in the polycarboxylic acid-based polymer; and 0.05 to 0.75 chemical equivalent of a multivalent metal compound relative to the amount of the carboxyl group, wherein a number average molecular weight of the polycarboxylic acid-based polymer is in a range of 40,000 to 10,000,000.
Abstract:
Disclosed is a resin composition comprising (A) a saponified ethylene-vinyl ester copolymer and (B) a completely or partially dehydrated polyvalent metal sulfate hydrate. Preferably, the component (B) is a completely or partially dehydrated 2-valent metal sulfate hydrate. The resin composition can suppress increasing viscosity in preparation thereof as well as production of the multilayer structure therefrom. A molded article can be stably produced and recover quickly gas barrier property deteriorated by hot water treatment and additionally maintain the superior gas barrier property.
Abstract:
A sanitary container has a hollow cavity for storing a product in cleanliness. A wall portion of the container has a laminated structure of an inner layer and an outer layer. The outer layer is made of a cyclic olefin polymer containing at least one pigment selected from the group consisting of C.I. Pigment Yellow 147, C.I. Pigment Yellow 180 and C.I. Pigment Yellow 181 and added therein. The inner layer is made of a cyclic olefin polymer free of the at least one pigment. The sanitary container is superb in pigment dispersion (ultraviolet ray blocking property), is free of troublesome contamination of its content with pigment particles, and is also excellent in impact resistance strength, gas barrier properties and interface bonding.
Abstract:
The present invention relates to a film for a tire inner liner, particularly to a film for a tire inner liner including: a base film including a copolymer or a mixture of polyamide-based resin and a polyether-based resin; and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, wherein the base film has a tensile recovery rate of 30% to 80%. The film for a tire inner liner of the present invention may exhibit an excellent gas barrier property with a thin thickness, and thus enables light weight of a tire and improvement in automobile mileage, and enables easier forming during a tire manufacturing process.
Abstract:
A carbon dioxide gas barrier coating comprising clay dispersed in a polymer composition comprising EVOH, gas barrier materials such as laminate materials (20) including the coating (1) on a substrate (2), methods of enhancing the carbon dioxide barrier properties of materials using the coating, uses of the coating composition in enhancing the gas barrier properties of a substrate packages including the carbon dioxide barrier materials (20) and methods of protecting articles.