The present invention provides a display device which can attain higher contrast than that of the conventional display device. The display device (
1
) comprises: an image light source (
2
); and an optical sheet (
10
) having a plurality of layers for controlling an incident light from the image light source and for outputting the light to the observer side, wherein the optical sheet comprises an optical functional sheet layer (
12
) in which light-transmissive portion(s) (
13
) configured to transmit light and light-absorbing portion(s) (
14
) configured to absorb light are alternately arranged along the sheet plane, and only one layer (
11
) or a plurality of layers of which refractive indices are substantially the same is (are) provided on the observer side of the optical functional sheet layer.
Modeling Material For Forming Photofabrication Model In Ink-Jet Three Dimensional Printing, Supporting Material For Supporting The Shape Of Photofabrication Model On Photofabrication And Production Method Of Photofabrication Model
申请人:KEYENCE CORPORATION
公开号:US20130234370A1
公开(公告)日:2013-09-12
The present invention aims to provide a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method in which the photocured product is excellent in solubility in water and is easy to remove after photofabrication, and the like. A modeling material for forming a photofabrication model in ink-jet three dimensional printing method containing a curable resin component with a weighted average of SP value of 9.0 to 10.3; and a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method containing a water-soluble monofunctional ethylenically unsaturated monomer (F), polyoxypropylene glycol with a number average molecular weight of 100 to 5,000 and/or water (G), and a photopolymerization initiator (D).
A process for synthesizing metal 2-ethylhexanoates includes reaction of metals with a reaction mixture including a carboxylic acid, a low weight aliphatic alcohol, and an electroconductive additive under the action of electric current in an elecrolyzer. In the electrolyzer, an ion exchange membrane divides respective anode and cathode compartments. The metal is introduced in the form of an anode, and is preferably lead or bismuth. The carboxylate is preferably 2-ethylhexanoic acid. The electroconductive additive is preferably a salt of 2-ethylhexanoic acid and an alkali metal or ammonium cation.
Provided are polyphenylene sulfide compositions having improved thermo-oxidative stability, methods for obtaining them, and articles comprising the compositions. The compositions comprise polyphenylene sulfide and a bismuth additive. The bismuth additive comprises a bismuth halide, an inorganic bismuth salt, a bismuth carboxylate, an oxide comprising bismuth and a transition metal, bismuth metal, or a mixture thereof. Optionally, the compositions further comprise at least one zinc(II) compound.