Patent classifications
B32B2264/302
RUBBER RESIN MATERIAL WITH HIGH THERMAL CONDUCTIVITY AND LOW DIELECTRIC PROPERTIES AND METAL SUBSTRATE USING THE SAME
A rubber resin material with high thermal conductivity and low dielectric properties and a metal substrate using the same are provided. The rubber resin material includes a rubber resin composition and at least one surface-modified inorganic filler. The rubber resin composition includes 30 wt % to 60 wt % of a liquid rubber, 10 wt % to 40 wt % of a polyphenylene ether resin, and 10 wt % to 40 wt % of a crosslinker. A molecular weight of the liquid rubber ranges from 2500 g/mol to 6000 g/mol. The at least one surface-modified inorganic filler has one or more modifying functional groups that are selected from the group consisting of an acrylic group, a functional group having a nitrogen-containing main or branched chain, a double bond-containing functional group, and an epoxy group.
HEAT-CONDUCTIVE SHEET
A heat-conducting sheet 1 comprising a first heat-conducting layer 1a and a second heat-conducting layer 1b, which each comprise a polymer matrix 2 and an anisotropic filler 3, and wherein the anisotropic filler is oriented in a thickness direction. The first and second heat-conducting layers 1a and 1b are laminated via an interface 5 in which a filling ratio of the anisotropic filler 3 is lower than that of the first and second heat-conducting layers 1a and 1b.
MULTILAYERED COATING FILM AND COATED ARTICLE
A multilayer coating film includes a lustrous layer containing a luster material and a blackish coloring agent, and a colored layer containing a reddish coloring agent, and having translucency. A slope of a tangent of a spectrum of a spectral transmittance, defined as an absolute value, of the colored layer at the wavelength of 620 nm is 0.02 nm.sup.1 or more and 0.06 nm.sup.1 or less, the spectral transmittance being obtainable by dividing a spectral reflectance measured for the colored layer stacked on the lustrous layer at the light receiving angle of 15 in the case of the light incident angle of 45, by a spectral reflectance measured for the lustrous layer from which the colored layer is removed and a surface of which is therefore exposed, at the light receiving angle of 15 in the case of the light incident angle of 45.
METHOD FOR PRODUCING SUBSTRATE HAVING HARD COAT LAYER CONTAINING FUNCTIONAL FINE PARTICLES
An object of the present invention is to provide a method for producing a substrate with a hard coat layer that can maintain the properties of the functional fine particles for a long period of time even under a severe use environment and has excellent wear resistance. A method for producing a substrate with a hard coat layer characterized by comprising (1) providing a semi-cured hard coat layer consisting mainly of a resin on the substrate, satisfying the following formula (a): 12X600 (a), wherein X indicates time in second required for the (A) haze of the glass with the semi-cured hard coat layer to exceed 5%, when the glass with the semi-cured hard coat layer is obtained by layering a 10 m-thick, semi-cured hard coat layer on one side of 3 mm-thick float-processed soda glass; and then thus obtained glass with the semi-cured hard layer is immersed in an N-methylpyrrolidone solvent in an environment of 40 C., (2) applying a dispersion in which functional fine particles are dispersed in a dispersion solvent satisfying the following formula (b) on the semi-cured hard coat layer: 12 X(A+0.2).sup.290 (b), wherein X denotes X described in the formula (a), A denotes the difference between the solubility parameter of the dispersion solvent inMPa.sup.0.5 unit and the solubility parameter of N-methylpyrrolidone (22.3 MPa.sup.0.5), and (3) curing the semi-cured hard coat layer completely.
MULTILAYER RADAR-ABSORBING LAMINATE FOR AIRCRAFT MADE OF POLYMER MATRIX COMPOSITE MATERIAL WITH GRAPHENE NANOPLATELETS, AND METHOD OF MANUFACTURING SAME
A multilayer radar-absorbing laminate includes three juxtaposed blocks.
A first electrically conductive block is arranged toward the inside of the aircraft in use.
A second electromagnetic intermediate absorber block has a layer of electrically non-conductive fiber sheets is permeated by graphene-based nanoplatelets to achieve a periodic and electromagnetically subresonant layer, the conductive layers containing graphene nanoplatelets alternating with non-conductive layers.
A third block of electrically non-conductive material is arranged towards the outside and forms part of the outer surface of the aircraft. The second block is produced by depositing on the fiber sheets a suspension of graphene nanoplatelets in a polymeric mixture, with controlled penetration of the graphene nanoplatelets into the fiber sheets. A plurality of dry fiber sheets sprayed with the suspension of graphene nanoplatelets is superimposed. An unpolymerized thermosetting synthetic resin is infused into a lay-up made of the first, second and third blocks. Afterwards, the thermosetting resin is polymerized.
ELECTRETIZED SHEET AND FILTER
The electret-treated sheet includes: a core layer (A) which is a porous film containing at least a thermoplastic resin; a surface layer (X) disposed on one side of the core layer (A); and a back surface layer (Y) disposed on the other side of the core layer (A), the surface layer (X) and the back surface layer (Y) each having a charged outermost surface, wherein the electret-treated sheet has a water vapor permeability coefficient of 0.1 to 2.5 g.Math.mm/m.sup.2.Math.24 hr; the core layer (A) has a pore aspect ratio of 5 to 50 and an average pore height of 2.5 to 15 m; the surface layer (X) and the back surface layer (Y) each have a thickness of 5 to 200 m; and the surface layer (X) includes a heat seal layer (B) including the outermost surface, wherein the heat seal layer (B) has a melting point of 50 to 140 C.
ANTIGLARE HARDCOAT MULTILAYER FILM
One embodiment relates to a hardcoat multilayer film, which includes a first hardcoat and a transparent resin film layer in this order from the surface layer side, where the first hardcoat has been formed from a coating material that includes (A) 100 parts by mass of a copolymer of (a1) a polyfunctional (meth)acrylate and (a2) a polyfunctional thiol, (B) 0.01-7 parts by mass of a water repellent, and (C) 0.1-10 parts by mass of fine resin particles having an average particle diameter of 0.5-10 and that contains no inorganic particles. Another embodiment relates to a hardcoat multilayer film, which includes a first hardcoat and a transparent resin film layer in this order from the surface layer side, where the first hardcoat has been formed from a coating material that includes (A) a copolymer of (a1) a polyfunctional (meth)acrylate and (a2) a polyfunctional thiol, (B) a water repellent, and (C) fine resin particles having an average particle diameter of 0.5-10 m and that contains no inorganic particles, and which satisfies given requirements concerning abrasion resistance, total light transmittance, and the Y value of the XYZ color system based on a 2-degree field of view.
POLYMER COMPOSITION FOR THE MANUFACTURE OF THERMOFORMED ARTICLES
This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.
POLYMER COMPOSITION FOR THE MANUFACTURE OF THERMOFORMED ARTICLES
This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby.
HARD COAT LAMINATED FILM
According to at least one embodiment, there is provided a hard coat laminated film, including, from a surface layer side, a second hard coat, a first hard coat, and a transparent resin film layer, where the first hard coat and the transparent resin film layer are laminated directly, where the first hard coat is formed of a coating material including: (A) 100 parts by mass of a polyfunctional (meth)acrylate; and (B) 1 to 100 parts by mass of an N-substituted (meth)acrylamide compound, where the second hard coat is formed of a coating material containing no inorganic particles, and where the transparent resin film is a transparent multilayer film or a transparent monolayer film made of a poly(meth)acrylimide resin, where the transparent multilayer film includes a surface layer made of a poly(meth)acrylimide resin, the first hard coat being formed on the surface layer.