412results about How to "Excellent gas barrier properties" patented technology

A multilayer barrier film structure of an organic. EL display panel has a multilayered body formed on a surface of a supporting substrate. The multilayered body includes an intermediate film for which the number of molecules of oxygen, water and the like permeating through is reduced upon heating or irradiation and inorganic films formed so as to sandwich the intermediate film. The film structure includes a sealing region where the intermediate film has been transformed by heating or irradiation provided so as to surround the multilayered body on the surface of the supporting substrate. In a method of manufacturing an organic EL display panel comprising an organic EL device and a supporting substrate supporting the organic EL device, a first inorganic film is formed so as to cover a surface of a supporting substrate, an intermediate film for which the number of molecules of oxygen, water and the like permeating through is reduced upon heating or irradiation is formed on the first inorganic film, a second inorganic film is formed on the intermediate film, an organic EL device comprising first and second display electrodes and at least one organic functional layer comprising an organic compound formed so as to be sandwiched between the first and second display electrodes is formed on the second inorganic film, and a perimeter outside the organic EL device is subjected to heating or irradiation, to form a sealing region where the intermediate film has been transformed surrounding the organic EL device.

Disclosed is a specific adhesive polyethylene composition comprising [1] a modified ethylene/alpha-olefin copolymer resin or elastomer obtained by modifying a specific ethylene/alpha-olefin copolymer resin or elastomer, each of which comprises ethylene and an alpha-olefin of 3 to 20 carbon atoms, with an unsaturated carboxylic acid or anhydride, ester, amide, imide or metallic salt derivative of a unsaturated carboxylic acid thereof, [2] an unmodified ethylene/alpha-olefin copolymer resin and/or an unmodified ethylene/alpha-olefin copolymer elastomer and [3] a tackifier. Also disclosed is a multi-layer laminated film of 3 or more layers in which a layer of the above composition is interposed between an ethylene polymer layer and either a polyamide resin layer, an ethylene/vinyl alcohol copolymer layer or a layer of a mixture of polyamide resin and ethylene/vinyl alcohol copolymer. The adhesive polyethylene composition shows excellent adhesion strength to ethylene polymers, polyamide resins and ethylene/vinyl alcohol copolymers, high heat-sealing strength and heat resistance. The multi-layer laminated film shows excellent strength, heat resistance and gas barrier properties, and besides this film has heat shrinkability, so that the film is suitably used as a shrink film.

The invention provides a single-layer or multi-layer packaging film or sheet having at least one layer formed of a polyamide resin composition, wherein the layer formed of the polyamide resin composition is a layer (A) formed of a polyamide resin composition comprising a copolymer nylon (c) composed of an aliphatic nylon (co)polymer component (1) and an aromatic nylon (co)polymer component (2) in a proportion of at least 5 wt. %.

Disclosed is a gas barrier multilayer film having excellent gas barrier properties, transparency and excellent impact resistance. Also disclosed is a method for producing such a gas barrier multilayer film. Specifically disclosed is a gas barrier multilayer film wherein a vapor deposition film of an inorganic oxide is formed on a base and a gas barrier coating film is formed on the vapor deposition film. Such a gas barrier multilayer film is characterized in that a side of the base on which the vapor deposition film is to be formed is subjected to a pretreatment or a primer coating treatment and the gas barrier coating film is formed by applying a gas barrier coating liquid on the inorganic oxide film and then heating the thus-applied coating liquid.

Disclosed is a gas barrier film alternately comprising at least one inorganic layer and at least one organic layer on a resin base material having a glass transition temperature of 250° C. or higher. The gas barrier film can exhibit superior gas barrier property when it is used in image display devices such as liquid crystal display devices and organic EL devices.

A formed article includes a gas barrier layer that is formed of a material including at least an oxygen atom and a silicon atom, a surface area of the gas barrier layer having an oxygen atom content rate of 60 to 75%, a nitrogen atom content rate of 0 to 10%, and a silicon atom content rate of 25 to 35%, based on the total content of oxygen atoms, nitrogen atoms, and silicon atoms, and having a film density of 2.4 to 4.0 g/cm³. A method of producing a formed article includes implanting ions into a surface layer part of a polysilazane compound-containing layer of a formed body that includes the polysilazane compound-containing layer in its surface layer part. An electronic device member includes the formed article. An electronic device includes the electronic device member. The formed article exhibits an excellent gas barrier capability, excellent folding resistance, and excellent transparency.

The present invention relates to a curtain coatable gas barrier coating composition comprising a polymer and a surfactant, wherein the polymer is selected from a group consisting of polyvinyl alcohol and polysaccharides, or mixtures thereof, wherein said polysaccharides are soluble or dispersable or suspendable in water and the surfactant is a water soluble non-ionic ethoxylated alcohol. The present invention also relates to a method for providing a substrate with a gas barrier layer by means of the coating composition, and a coated substrate having at least one gas barrier layer obtained by coating the substrate with the coating composition. Further, the invention relates to a packaging material comprising a coated paperboard coated with the coating composition, and a liquid package comprising such a packaging material.

An object of the present invention is to provide: a film which is applicable to a tire, has excellent gas barrier properties and bending resistance, allows weight of a tire to be reduced with improving internal pressure retainability of the tire at both the brand-new stage and the used stage thereof, and is capable of demonstrating good gas barrier properties without breaking especially in a running condition at a relatively low temperature in winter time or the like; an inner liner for tire, using the film; and a tire provided with the inner liner for tire. The film of the present invention comprises at least a layer composed of resin composition (D) produced by dispersing viscoelastic substance (C) in a resin containing modified ethylene-vinyl alcohol copolymer (B) obtained by subjecting ethylene-vinyl alcohol copolymer (A) to a reaction, wherein 100% modulus at −30° C. of the viscoelastic substance (C) is smaller than 6 MPa. The inner liner for tire, and the tire, of the present invention are an inner liner for tire, using said film, and a tire provided with said inner liner for tire, respectively.

The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises a gas barrier resin (A), a thermoplastic resin (B) other than the gas barrier resin (A), and a compatibilizer (C), wherein the gas barrier resin (A) has an oxygen transmission rate of 500 ml.20 mum/m2.days.atm (20° C., 65% RH) or less, the thermoplastic resin (B) has a carbon-carbon double bond, and an oxygen absorption rate of the resin composition is 0.001 m/m2.day or more.

A silicon-nitrogen compound film according to the first aspect of the present invention is made of a material expressed by a compositional formula Si₃N_xO_yH_z, where 10≦(3x+2y)≦12, 3.4≦x≦4.0, 0≦y, 0≦z≦2.0, the peak-area ratio of a first area of a first peak appearing near a wave number of 2150 cm⁻¹ in a Fourier-transform infrared absorption spectrum of the material and corresponding to a Si—H stretching vibration to a second area of a second peak appearing near a wave number of 810 cm⁻¹ in the Fourier-transform infrared absorption spectrum and corresponding to a Si—N stretching vibration is smaller than 0.2, and the silicon-nitrogen compound film has a thickness t (in nanometers) and a density d (g/cm³) which satisfy the inequalities,

1.9≦d≦2.5, and

−700d+1930≦6t≦−700d+2530.

The present invention provides an amine based epoxy resin curing agent containing an epoxy resin and an amine compound capable of imparting a high gas barrier performance and a long pot life, in addition to excellent performances which an epoxy resin conventionally possesses, and an epoxy resin composition with a high gas barrier performance and a long pot life, which contains the subject curing agent. Also, the present invention provides an adhesive for laminate with excellent adhesiveness to various polymers, papers, metals, etc., which contains, as a main component, an epoxy resin composition containing an amine based resin curing agent with a high gas barrier performance and a long pot life.

The amine based epoxy resin curing agent of the present invention is composed of a reaction product of the following (A), (B) and (D) or a reaction product of the following (A), (B), (C) and (D):

• • (A) m-xylylenediamine or p-xylylenediamine,
  • (B) a polyfunctional compound having at least one acyl group, which is capable of forming an amide group site through a reaction with a polyamine and forming an oligomer,
  • (C) a monovalent carboxylic acid having from 1 to 8 carbon atoms and/or its derivative, and
  • (D) a functional compound having at least one carbonate site represented by the formula (2), which is capable of forming a carbamate site represented by the formula (1) through a reaction with a polyamine:

The invention discloses a making method of clay modified by silane coupling agent with butadiene styrene rubber nanometer composite material, wherein the silane coupling agent is gamma-aminotriethylene silane and di-(gamma-triethylene propyl) tetrasulfide, which comprises the following steps: making gamma-aminotriethylene silane modified clay liquid suspension under normal temperature; blending with butylbenzene rubber emulsion completely; flocculating; washing; drying; fusing; sulfurizing to obtain the product; adding di-(gamma-triethylene propyl) tetrasulfide to obtain the modified clay and butadiene styrene rubber nanometer composite material of gamma-aminotriethylene silane and di-(gamma-triethylene propyl) tetrasulfide.

Provided is a film which can be industrially coated easily and exhibits excellent gas barrier performance without being subjected to a high-temperature heat treatment. The film exhibits good gas barrier performance immediately after the production, and maintains the excellent gas barrier performance while exhibiting excellent hot water resistance and printing resistance. More specifically, provided are: a gas barrier laminated film including a resin layer on an inorganic thin film formed on at least one surface of a support film, the resin layer being formed by applying: (1) an aqueous dispersion containing polyvinyl alcohol (a), an ethylene-unsaturated carboxylic acid copolymer (b), and inorganic particles (c); (2) an aqueous dispersion containing an ethylene-unsaturated carboxylic acid copolymer (b), inorganic particles (c), and/or a cross-linking agent (d); or (3) an aqueous dispersion containing polyvinyl alcohol (a), an ethylene-unsaturated carboxylic acid copolymer (b), inorganic particles (c), and a cross-linking agent (d), to the inorganic thin film surface; and a method of producing the gas barrier laminated film.

2499. The invention provides a multilayer coextrusion heat shrinking film which comprises a surface layer, a sandwich layer and a heat-sealing layer. The surface layer and the heat-sealing layer are respectively bonded with the sandwich layer through a bonding layer; the sandwich layer comprises a mixture composed of 98Wt% of PVDC resin and 2Wt% of processing aid, wherein, the PVDC resin is a VDC-MA copolymer, the melting point is 150 DEG C, the density is 1.7g/cm<3>, and the processing aid is epoxidized soybean oil or other plasticizing agent systems. The proposal increases the shrinkage factor of the multilayer coextrusion heat shrinking film, and improves the barrier property; the multilayer coextrusion heat shrinking film has excellent heat sealing performance, and is widely applied to the vacuum shrink package.

The invention discloses a back film for a solar module; the back film comprises an outer surface fluoride containing layer, a middle layer and an inner surface ethylene- vinyl acetate copolymer layer; the middle layer comprises a polyester layer, an ethylene-vinyl alcohol copolymer layer and a bonding layer; the middle layer is prepared by co-extruding the polyester material layer, the ethylene-vinyl alcohol copolymer layer and the bonding layer; the outer surface fluoride containing layer is a fluoride containing film compounded on the polyester layer of the middle layer or the fluoride containing coating coated on the polyester layer of the middle layer; and the inner surface ethylene- vinyl acetate copolymer layer is applied on the bonding layer of the middle layer by curtain coating. The back film of the solar module provided by the invention has the advantages of low water vapor transmission rate and high insulation performance, not only has excellent barrier and insulation performance, but also has the packaging performance.

Methods are provided for intercalating, exfoliating and/or dispersing clay particles with a cationic polymer for form clay nanoparticles. The resulting clay nanoparticles may be incorporated in various polymeric articles, such as a container, preform, closure, liner, sheet or film.

A laminate comprises a gas barrier layer and an inorganic compound layer, the gas barrier layer being formed of a material that includes at least an oxygen atom, a carbon atom, and a silicon atom, the gas barrier layer having an oxygen atom content rate that gradually decreases from the surface of the gas barrier layer in the depth direction, and having a carbon atom content rate that gradually increases from the surface of the gas barrier layer in the depth direction. An electronic device member includes the laminate, and an electronic device includes the electronic device member. The laminate exhibits an excellent gas barrier capability and excellent transparency, and does not produce cracks (i.e., the gas barrier capability does not deteriorate) even when the laminate is folded. The laminate exhibits an excellent gas barrier capability and an excellent impact-absorbing capability even if an impact is applied from the outside.

The invention discloses a nanometer composite material high in air barrier property and a preparation method thereof, and belongs to the technical field of nanometer composite materials. The method comprises the following steps that firstly, laminar nanometer filler is dispersed into a surface modifier solution, stirred for a time after ultrasonic treatment and then filtered, washed and dried to obtain surface modified laminar nanometer filler; secondly, the surface modified laminar nanometer filler is pre-mixed with a polymer, then placed in an internal mixer, mixing is conducted after heating and fusion to obtain a nanometer composite material, the nanometer composite material is subjected to hot-press molding, and the nanometer composite material high in air barrier property is obtained. The nanometer composite material high in air barrier property has the advantages of being excellent in barrier property, low in filler consumption, easy to process and good in integrated mechanicalproperty and has a good application prospect.

Disclosed is a gas-barrier thin film laminate which can be produced with high yield while having higher gas barrier properties than the conventional ones. The gas barrier properties of this gas-barrier thin film laminate do not deteriorate even when the laminate is bent. Also disclosed is an organic EL device (hereinafter also referred to as OLED) with excellent environmental resistance which uses the gas-barrier thin film laminate. The gas-barrier thin film laminate having at least one inorganic film and at least one stress relaxation film is characterized in that at least one stress relaxation film is formed by an atmospheric pressure plasma method wherein two or more electric fields of different frequencies are applied.

A formed article includes a gas barrier layer that is formed of a material that includes at least an oxygen atom, a carbon atom, and a silicon atom, the gas barrier layer having an oxygen atom content that gradually decreases from the surface of the gas barrier layer in the depth direction, and having a carbon atom content that gradually increases from the surface of the gas barrier layer in the depth direction. An electronic device member includes the formed article, and an electronic device includes the electronic device member. The formed article exhibits an excellent gas barrier capability and excellent transparency.

The present invention relates to a gas barrier composite film for a hydrothermally processable package,

wherein at least one gas barrier layer containing a gas barrier resin and an inorganic layered compound is interposed between a base film layer and a sealing material layer, and

an adhesive layer is further formed on both sides of the gas barrier layer by applying an adhesive composition comprising: a base material mainly comprising a polyurethane resin having at least one functional group selected from the group consisting of an amino group, a hydroxyl group, and a carboxyl group; and a curing agent comprising an isocyanate curing agent and an epoxy curing agent, at the following functional group ratio:

I/P=0.3 to 30.0

E/P=1.5 to 25.0

(here, “P” represents the total number of moles of primary and secondary amino groups, hydroxyl groups, and carboxyl groups contained in the base material, “I” represents the number of moles of isocyanate groups contained in the isocyanate curing agent, and “E” represents the number of moles of epoxy groups contained in the epoxy curing agent).