摘要:
Optically coherent multilayered film-coated powder having weather resistance and a clear intended color, and processes for designing and producing the same are provided. A substance of the base particles providing an intended function and an intended color are selected; a spectral intensity curve and values in CIELAB color system of the intended color are measured; and with substances capable of being used as the coated layers and refractive indexes thereof being included in factors, substances and thicknesses of the coated layers and an order of formation of the layers are obtained that provide optically coherent multilayered film-coated powder having such values in CIELAB color system that minimizes a color difference and makes a hue ratio proximate to 1, by solving numerical solutions of the recurring formula for film multiple coherence.
摘要:
Provided are film-coated powders, coating compositions and coated materials that give off vivid and deep colors. The film-coated powders have a coating film on the surface of substrate particles, and has spectrophotometric characteristic in that, when the ratio of the length at 400 nm between 380 and 780 nm on measuring the reflection spectrum from the vertical reflection light of the film-coated powder (wavelength definition width L) to the height of the reflectance 100% in the vertical axis (reflectance definition width R), L/R is 5/2, then the ratio of the peak height (H) to the half-value width (W), H/W is at least 1.
摘要:
A molded container having a wall composed of a thermoplastic resin oriented in at least one direction on the wall face, wherein the container wall has a layer of a blend composed mainly of a plurality of melt-extrudable thermoplastic resins, each of which has a solubility parameter (Sp) of at least 9.5, at least one of said thermoplastic resins has an oxygen permeability lower than 5.times.10.sup.-11 cc.multidot.cm/cm.sup.2 .multidot.sec.multidot.cmHg, said thermoplastic resins are chosen so that the difference (.DELTA.Sp) of the solubility parameter in said thermoplastic resins is not greater than 4.5, the elongation of said resin blend is higher than the arithmetic mean (.epsilon.) of elongations of the respective thermoplastic resins, and wherein the container has a thermal shrinkability (.delta.) of at least 5% in the orientation direction of said container wall.
摘要:
A transparent multi-layer container comprising a co-extrudate of an oxygen-barrier resin layer and an orienting resin layer which is monoaxially or biaxially oriented is disclosed. An adhesive resin layer is preferably interposed between the oxygen-barrier layer and the orienting resin layer, and this co-extrudate is drawn and molded at a specific temperature determined relatively to the melting points and softening points of the respective resins. This container is excellent in the combination of transparency, rigidity, mechanical strength, gas-barrier property and interlaminar peel strength.
摘要:
A packaging material having an improved gas permeation resistance, which comprises at least one layer composed of (A) an ethylene-vinyl alcohol copolymer having a vinyl alcohol content of 50 to 75 mole % and a residual vinyl ester content of up to 4 mole % based on the sum of the vinyl alcohol and vinyl ester or (B) a blend of said ethylene-vinyl alcohol copolymer with up to 150% by weight, based on said copolymer, of at least one thermoplastic polymer other than said copolymer, said ethylenevinyl alcohol copolymer having a main endothermic peak satisfying substantially the following requirement:Y.sub.1 = 1.64X + 68.0wherein Y.sub.1 stands for the main endothermic peak temperature (.degree. C.) in the differential thermal analysis, and X stands for the vinyl alcohol content (mole %) in the ethylene-vinyl alcohol copolymer,And at least one subsidary endothermic peak satisfying substantially the following requirement:0.67 X + 76.7 .gtoreq. Y.sub.2 .gtoreq. 0.40 X + 40.0preferably0.67 X + 76.7 .gtoreq. Y.sub.2 .gtoreq. 0.34 X + 88.0wherein Y.sub.2 stands for the subsidary endothermic peak temperature (.degree. C.) in the differential thermal analysis, and X is as defined above,The ratio (Rs) of the subsidary endothermic peak area to the main endothermic peak area being at least 2.5%.
摘要:
A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.
摘要:
A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.
摘要:
A magnesium alloy sheet having an adequate strength and an excellent bendability is provided along with a method of manufacturing such an alloy sheet. The method comprises, rolling a magnesium alloy sheet through a reduction roll, the alloy thereof containing about 0.1-10.0 mass % of Al and about 0.1-4.0 mass % of Zn, wherein the magnesium alloy sheet has a surface temperature of about 100° C. or below at the time just before it is fed in the reduction roll, and the reduction roll has a surface temperature in the range of about 100° C. to 300° C. Particularly, when executing multipass rolling, at least the last pass is accomplished in non-preheat rolling wherein the magnesium alloy sheet and the reduction roll have specified surface temperatures, respectively.
摘要:
A method of treating hydrogen sulfide or producing hydrogen which comprises disposing a liquid tank having a photocatalyst electrode comprising a photocatalyst and a liquid tank having a metal electrode so that the two liquid tanks are separated from each other by a cation-exchange membrane, placing a liquid containing either hydrogen sulfide or an organic substance in the liquid tank having the photocatalyst electrode, electrically connecting the photocatalyst electrode to the metal electrode, and exposing the photocatalyst to a light. The liquid to be placed in the liquid tank having the metal electrode preferably is an acidic solution. The photocatalyst preferably comprises a metal sulfide, and preferably is fine particles having a layered nanocapsule structure.
摘要:
A titania film-coated powder comprising a base particle having provided thereon at least one titania film, wherein the base particle is coated with the titania film by suspending the base particle in a buffer solution having a pH of from 7.0 to 12.0 to obtain a suspension, and adding a hydrogen peroxide-ammonia mixture solution containing peroxotitanic acid to the suspension to thereby regulate a titania deposition reaction induced by decomposition of the peroxotitanic acid in the suspension.