42results about How to "Excellent physical durability" patented technology

The present invention relates to radiographic imaging apparatus for taking X-ray images of an object. In various two-panel radiographic imaging apparatus configurations, a front panel and back panel have substrates, arrays of signal sensing elements and readout devices, and passivation layers. The front and back panels have scintillating phosphor layers responsive to X-rays passing through an object produce light which illuminates the signal sensing elements to provide signals representing X-ray images. The X-ray apparatus has means for combining the signals of the X-ray images to produce a composite X-ray image. Furthermore, the composition and thickness of the scintillating phosphor layers are selected, relative to each other, to improve the diagnostic efficacy of the composite X-ray image. Alternatively, a radiographic imaging apparatus has a single panel having arrays of signal sensing elements and readout devices and scintillating phosphor layers that are disposed on both sides of a single substrate. The present invention further relates to various embodiments of indirect dual-screen DR flat-panel imager apparatus that provide single-exposure dual energy imaging.

A water based inkjet ink set with excellent image stability, durability and quality, comprising at least one cyan ink, at least one magenta ink, at least one yellow ink, at least one black ink, and at least one colorless protective ink, wherein:

• • (a) the cyan, magenta, yellow, and black inks each comprise a pigment colorant;
  • (b) the cyan, magenta, yellow, black, and colorless protective inks each comprise a polymeric binder additive; and
  • (c) the surface tensions of the inks have the following relationships:
    • (i) the dynamic surface tension at 10 milliseconds surface age for all inks of the ink set is greater than or equal to 35 mN/m,
    • (ii) the static surface tensions of the yellow ink and of the colorless protective ink are at least 2.0 mN/m lower than the static surface tensions of the cyan, magenta and black inks of the ink set and
    • (iii) the static surface tension of the colorless protective ink is at least 1.0 mN/m lower than the static surface tension of the yellow ink.

A polarizing split layer 26 and a reflection layer 27 are alternately provided on bonding surfaces between prism rods 24a and 24b which constitute a polarized beam splitter array 24. Polarization conversion devices 25 are bonded to emission surfaces of the prism rods 24b from which linearly polarized light being reflected by the polarizing split layers 26 and being reflected by the reflection layer 27 are emitted. In the polarization conversion device 25, each edge line 30b of a rectangular prism element 30a is inclined by 45° with respect to a polarization direction of linearly polarized light being incident. On each inclined surface of the rectangular prism element 30a, a retardation film 32 whose optical axis matches the normal line of the inclined surface is formed. The retardation film 32 serves as a uniaxial negative C plate which gives a phase difference of a ½ wavelength to incident light.

It is an object of the present invention to provide a sulfonic acid group- containing polymer and a sulfonic acid group-containing aromatic compound, which have excellent proton conductivity even under the low humidification condition, are excellent in mechanical strength and chemical stability and, moreover, can attain high output and excellent physical durability when processed into a solid polymer fuel cell, as well as a polymer electrolyte material, a polymer electrolyte molded product and a solid polymer fuel cell respectively using the same. The sulfonic acid group-containing polymer of the present invention is a sulfonic acid group-containing polymer comprising a constituent unit containing a sulfonic acid group (A1), and a constituent unit not containing a sulfonic acid group (A2), wherein the polymer contains a constituent unit having a specified structure as at least one constituent unit containing a sulfonic acid group (A1) at 25 mol% or more based on a sum of the constituent unit containing a sulfonic acid group (A1). Further, the polymer electrolyte material, polymer electrolyte molded product and solid polymer fuel cell of the present invention are constituted using such a sulfonic acid group-containing polymer.

Provided are a heat radiation printed circuit board and a method of manufacturing the same, the heat radiation printed circuit board being produced by the method including: forming a circuit layer having an insulating layer, a circuit pattern and a solder resist on a first area of one surface of a metal substrate; and forming a bending part in a second area, in which the insulating layer is not formed, by bending the metal substrate, whereby a crack can be prevented in advance from being generated in the insulating layer, and durability and reliability of the heat radiation printed circuit board and a backlight unit applying the same can be improved.

[Summary]

To provide a formed article of polymer electrolyte composition which exhibits excellent proton conductivity even under low-humidification conditions and under low-temperature conditions, which is excellent in chemical stability, mechanical strength, fuel shutoff properties, and which can achieve high output, high energy density, and excellent long-term durability when used in a polymer electrolyte fuel cell; and also to provide a polymer electrolyte fuel cell using thereof. The formed article of polymer electrolyte composition includes: a block copolymer having one or more of each of a hydrophilic segment (A1) containing an ionic group and a hydrophobic segment (A2) not containing an ionic group; and an additive, wherein the formed article forms co-continuous or lamellar phase separation structure, and the additive is hydrophilic.

Polarizing split layers 26 and reflection layers 27 are provided on bonding surfaces between prism rods 24a and 24b. Polarization conversion devices 25 are bonded to an emission surface from which linearly polarized light being reflected by the polarizing split layers 26 and reflected by the reflection layer 27 are emitted. The polarization conversion devices 25 are formed by bonding plural prism rods 30 with side surfaces being inclined by 45° with respect to an incidence surface. Retardation films formed of dielectric multilayers are provided between the bonding surfaces to give a phase difference of a ½ wavelength to transmitted light. The retardation films and bonding borderlines 31 are inclined by 45° within a plane perpendicular to an optical axis of linearly polarized light so that an optical axis of the retardation film has an angle of 45° with respect to a polarization direction of the linearly polarized light.

To provide: a block copolymer that exhibits excellent proton conductivity even under low-humidification conditions, exhibits excellent mechanical strength and chemical stability, and when used in a polymer electrolyte fuel cell, allows high output and excellent physical durability; a polymer electrolyte material; and a polymer electrolyte form article and a polymer electrolyte fuel cell, using the same.

The block copolymer of the present invention includes each one or more of: a segment (A1) containing an ionic group; a segment (A2) not containing an ionic group; and a linker moiety connecting the segments. The segment (A1) containing an ionic group comprises a constituent unit represented by a specific structure. The polymer electrolyte material, the polymer electrolyte form article, and the polymer electrolyte fuel cell according to the present invention are manufactured by using the above block copolymer.

Provided are an aromatic sulfonic acid derivative and a sulfonic acid group-containing polymer, each of which has excellent proton conductivity even under low humidification conditions, while having excellent mechanical strength and chemical stability, and enables a solid polymer fuel cell to achieve high output and excellent physical durability when used therein. This aromatic sulfonic acid derivative has a specific structure and is characterized in that a sulfonic acid group is introduced into more than 50% of all the phenyl groups. This sulfonic acid group-containing polymer is characterized by being obtained by polymerization using the aromatic sulfonic acid derivative, and is also characterized by having a specific structure.

Provided are a composite polymer electrolytic membrane that has excellent proton conductivity even under low-humidification and low-temperature conditions, a small dimensional change rate, and excellent mechanical strength and chemical stability, and that is capable of achieving a high output and excellent physical durability when being used in a solid polymer fuel cell; and a membrane electrode composite and a solid polymer fuel cell using the composite polymer electrolytic membrane. This composite polymer electrolytic membrane has a composite layer formed by combining a polyazole-containingnanofiber unwoven fabric (A) and an ionic-group-containing polymer electrolyte (B), and is characterized in that the polyazole-containing nanofiber unwoven fabric (A) is basic.