Abstract: The present invention discloses an exfoliative clay and a derivative thereof and a method for producing the same. The exfoliative clay is formed by emulsion exfoliating an inorganic layered silicate clay with an amphibious intercalating agent by powerfully stirring at 60–180° C. and not less than 14.7 psig. The amphibious intercalating agent is obtained by copolymerizing polyoxyalkylene amine having molecular weight over 1,800 and polypropylene-grafting-maleic anhydride (PP-g-MA). Before emulsion exfoliation, the intercalating agent is acidified with an inorganic acid. The acidification is the key step for obtaining nanoscale of emulsifying particles less than 100 nm for the exfoliation. The exfoliative clay can be further extracted with a hydroxide or a chloride of alkali metal or alkaline-earth metal to obtain a derivative in the form of nanosilica plates which is free of organic portions.

Abstract: The present invention relates to an exfoliating agent and to a process for producing random form of nanoscale silica plates. The exfoliating agent applied in the present invention has the formula: wherein n=1 to 5 and R is a polyoxypropylene group, polyoxyethylene/oxypropylene group, or polyethylene amino group. In this invention, layered silicate clays are exfoliated into random silica plates by acidifying AMO with inorganic acid, adding the acidified AMO to layered silicate clay with agitation, and adding sodium hydroxide or chloride of alkali metal or alkaline-earth metal, in ethanol, water and a hydrophobic organic solvent to the intermediate product and repeating phase separation procedures to isolate random silica plates from water phase.

Abstract: The present invention provides a vertical-cavity surface emitting laser (VCSEL) diode and a method for producing the same. In this method, an n-type and a p-type ohmic contact electrodes are previously disposed, and then two pairs of distributed Bragger reflectors (DBRs) are formed. At last, a permanent metal substrate is plated. According to the present invention, reflectivity of the DBRs can be preserved without damage during rapid thermal annealing, and thus brightness of the laser diode is improved.

Abstract: The present invention discloses a method for producing a high brightness LED (light emitting diode). The method primarily comprises steps of: a) providing a temporary substrate for epitaxy; b) forming LED epitaxial layers on said temporary substrate, wherein said LED epitaxial layers with pn junction; c) providing a permanent substrate; d) forming a layered structure between said permanent substrate and said LED epitaxial layers, wherein said layered structure has properties of reflection, adhesion, diffusion barrier and buffer; and e) forming a first electrode and a second electrode on proper position to supply enough energy for said LED epitaxial layers. The LED manufactured in accordance with the present invention can exhibit high brightness and excellent mechanical strength during manufacturing.

Abstract: The present invention discloses an acylated derivative of an aminothiol compound having a general formula II wherein R1-R4 and R6 are substitutable ligands. Such compounds can perform as superior catalysts in asymmetric addition reactions of organic zinc and aldehyde. According to the present invention, only less than 0.02% of the acylated derivative is needed to obtain high enantioselectivity over 99% enantiomeric excess.

Abstract: The present invention discloses a method for producing an LED (light emitting diode), in which a transparent conductive film is formed between a transparent window and the front surface of a LED epitaxial layer. The transparent conductive film can be oxides, nitrides or fluorides of metals. The transparent conductive film can be preliminarily formed on one of the transparent window and the LED epitaxial layer or both of them by a suitable process, for example, thermal pressure. By involving the transparent conductive film, current spreading is improved and resistance is reduced because of larger cross section areas provided, particularly compared with the conventional spin on glass or polymer adhesives. Additionally, light-emitting efficiency can be improved since the conventional opaque substrate, such as a GaAs substrate.

Abstract: The invention provides a new primer composition for detecting the presence of Shigella sonnei and a method of using the same. The primer composition and method have high specificity and sensitivity on the detection of Shigella sonnei.

Abstract: The invention relates to novel pathogenic OrfF and OrfF? polypeptides derived from Xanthomonas campestris pv. campstris, the nucleic acid molecules encoding the polypeptides and the uses of the same for detecting or preventing a black-rot disease of a crucifer plant, making organic fertilizer or composting and being a biofilter for degradation of organic compounds.

Abstract: The present invention discloses an aminothiol compound having a general formula I wherein R1-R5 are substitutable ligands. Such compounds can perform as superior catalysts in asymmetric addition reactions of organic zinc and aldehyde. According to the present invention, the compounds is needed only less than 0.02% of main reactants to obtain enantioselectivity higher than 99% enantiomeric excess, whereby the asymmetric reactions can become very economic.

Abstract: The present invention discloses a complex of clay and polyoxyalkylene amine grafted polypropylene and a method for producing the same. The clay in the present invention is formed by modifying inorganic layered silicate clay with an amphibious intercalating agent obtained by polymerizing polyoxyalkylene amine having molecular weight over 1,800 and polypropylene-grafting-maleic anhydride (PP-g-MA). The method for producing the complex is primarily to polymerize the polyoxyalkylene diamine having molecular weight over 1,800 and polypropylene-grafting-maleic anhydride (PP-g-MA) to form an amphibious intercalating agent, which is then acidified with an inorganic acid, and mixed with the swelled clay by powerfully stirring at 60-80° C. for cation exchanging to obtain the titled complex. According to the present invention, the complex is an excellent surfactant and a reinforcing agent of polymers.

Abstract: The present invention discloses a high brightness light emitting diode and a method for producing the same. The light emitting diode includes a gallium phosphide window and a reflective mirror so as to promote brightness thereof. To produce the light emitting diode, a glass substrate is bonded to the main structure of the light emitting diode and then the temporary substrate for epitaxing thereon can be removed for depositing a reflective mirror. After bonding a permanent substrate below the reflective mirror, the glass substrate is removed, too. By means of the double-bonding process, reflectivity of the mirror is maintained in the present invention.

Abstract: The present invention discloses a complex of clay and polyoxyalkylene amine and a method for producing the same. The clay in the present invention is layered and includes silicate, and the polyoxyalkylene amine with molecular weight over 1,800 is provided as an intercalacting agent to enlarge interlayer distances of the clay at an unprecedented spacing. The method for producing the complex is primarily to acidify the polyoxyalkylene amine with an inorganic acid, which is then mixed with the clay swelled with water previously; and the mixture is then powerfully stirred at 60-80° C. for cation exchanging to obtain the titled inorganic/organic complex. According to the present invention, the complex is an excellent surfactant and a reinforcing agent of polymers.

Abstract: The present invention discloses a high-brightness light emitting diode (LED), which primarily includes a LED epitaxial layer with a reflective layer and a Si substrate with an adhesive layer. The LED epitaxial layer is bonded with the Si substrate by attaching the reflective layer and the adhesive layer. An n-type ohmic contact electrode and a p-type ohmic contact electrode are deposed on the front side of the LED. In the present invention, the reflective layer, the adhesive layer and the ohmic contact electrodes preferably perform single function, so that the most appropriate materials can be applied. Therefore, the LED of the present invention can exhibit excellent brightness.

Abstract: The invention provides a new primer composition for detecting the presence of Shigella sonnei and a method of using the same. The primer composition and method have high specificity and sensitivity on the detection of Shigella sonnei.

Abstract: The invention relates to novel pathogenic OrfF and OrfF′ polypeptides derived from Xanthomonas campestris pv. campstris, the nucleic acid molecules encoding the polypeptides and the uses of the same for detecting or preventing a black-rot disease of a crucifer plant, making organic fertilizer or composting and being a biofilter for degradation of organic compounds.