Kolon Industries, Inc.

Other

Yong Cheol Shin

Moo Seok Lee

Na Young Kim

Dong Hoon Lee

Young Seok Kim

Kwang Jin Lee

Seong Hak Choi

Kyeong Ah Kim

Boung Kun Son

Young Bum Kim

Kenneth H Eckels

Eun Soo Lee

Hyun Su Kim

Eun Su Lee

Bruce L Innis

Doria R Dubois

Sun Pyo Hong

Han Moon Cho

Soo Ok Kim

Sung Hee Lee

Wang Don Yoo

Joseph R Puniak

Young Tai Woo

Youn Tai Woo

Suck Jung Song

Leonard N Binn

Ashok K Srivastava

Yong Ju Chung

Sang Bum Moon

Disclosed are a polymer electrolyte membrane, a method for manufacturing the same and a membrane-electrode assembly comprising the same, the polymer electrolyte membrane includes a hydrocarbon-containing ion conductive layer; and a fluorine-containing ion conductor discontinuously dispersed on the hydrocarbon-containing ion conductive layer.

Polymer electrolyte membrane, a method for fabricating the same, and a membrane-electrode assembly including the same

Provided are a polymer electrode membrane including a porous support including a web of nanofibers of a first hydrocarbon-based ion conductor that are arranged irregularly and discontinuously; and a second hydrocarbon-based ion conductor filling the pores of the porous support, the first hydrocarbon-based ion conductor being a product obtained by eliminating at least a portion of the protective groups (Y) in a precursor of the first hydrocarbon-based ion conductor represented by Formula (1), a method for producing the polymer electrolyte membrane, and a membrane electrode assembly including the polymer electrolyte membrane: wherein m, p, q, M, M', X and Y respectively have the same meanings as defined in the specification.

Polymer electrolyte membrane, method for fabricating same, and membrane-electrode assembly comprising same

Disclosed are a reinforced composite membrane for fuel cells including a porous support comprising three-dimensionally irregularly and discontinuously arranged nanofibers of a polymer and a first ionic conductor, and a second ionic conductor filling pores of the porous support, wherein the first ionic conductor is present as nanofibers in the porous support or is present in the nanofibers of the polymer to form the nanofibers together with the polymer, and a membrane-electrode assembly for fuel cells including the same. As a result, impregnation uniformity and impregnation rate of the ionic conductors are improved and proton (hydrogen ion) conductivity is thus enhanced.

Reinforced composite membrane for fuel cell and membrane-electrode assembly for fuel cell comprising the same

The present invention relates to a polymer electrolyte membrane, and a membrane-electrode assembly and a fuel cell containing the same, and the polymer electrolyte membrane comprises a polymer comprising repeating units represented by the following chemical formulas 1-3. Chemical formulas 1-3 are as defined in the specification. The polymer electrolyte membrane has excellent resistance to radical attack and has improved acid-base interaction, thereby maximizing the function of an ion conductive group, and thus can improve the operation performance of a fuel cell in a low humidification state.

Polymer electrolyte membrane, membrane-electrode assembly comprising the same and fuel cell comprising the same

Provided are a polymer electrolyte membrane used in fuel cells, and a method for producing the same, the method including a step of filling a crosslinkable ion conductor in the pores of a porous nanoweb support; and a step of crosslinking the ion conductor filled in the pores of the porous nanoweb support. The method for producing a polymer electrolyte membrane uses a relatively smaller amount of an organic solvent, can ameliorate defects of the support caused by solvent evaporation, and can enhance the impregnability of the ion conductor to the support and the convenience of the process.

Polymer electrolyte and preparation method thereof

Disclosed is a submerged hollow fiber membrane module which is easy to expand, has a small installation area, and exhibits excellent contamination prevention and durability. The submerged hollow fiber membrane module comprises: (I) a module body divided into two portions which has a permeated water collection space () and a permeated water outlet (); (II) module support tubes () which are vertically connected to the upper and lower ends of the module body; (III) a plate type module header insertion layer which is provided with hollow fiber membrane spaces (), and is inserted into the module body; (IV) a plate type diffusion layer which is provided with a diffusion port () and diffusion tubes () and is inserted into the module body subsequent to the module header insertion layer; and (V) module headers which are inserted into the module header insertion layer.

Submerged hollow fiber membrane module

The present invention discloses a submerged hollow fiber membrane module which is of such a structure that it is easy to expand a module processing capability according to a treatment capacity, provides convenient module coupling properties and module manufacturing properties, maintains a stable flux under an efficient air diffusion condition and prevents the damage of membranes and water leakage caused by the loosening of module connecting regions. The submerged hollow fiber membrane module comprises [I] two module headers (and') having a filtrate water collecting portion () for collecting filtrate water filtered through hollow fiber membranes and a filtrate water outlet (), [II] an air diffusion unitconsisting of support tubes (and&#x2032;) fixing the two module headers (and&#x2032;) while keeping them spaced a predetermined distance and air diffusion tubes (and&#x2032;) having air diffusion holes (), and [III] a bundle of hollow fiber membranes () having both opposite ends fixed to the insides of the module headers (and&#x2032;) by an adhesive () so as to form a water collecting space within the module headers (and&#x2032;), the ends () of the hollow portions of the hollow fiber () membranes being opened and disposed in parallel to a filtrate water discharge surface ().

An attenuated Japanese encephalitis virus adapted to Vero cell by passages on Vero cell is disclosed. A Japanese encephalitis vaccine comprising said attenuated virus is also disclosed.

Attenuated Japanese encephalitis virus adapted to Vero cell and a Japanese encephalitis vaccine

Glass clear heavy gauge sheet with copolyester

The present invention relates to a polyester multilayer sheet having excellent impact strength and weatherability, and relates to a process for preparing the same. The present invention relates to coextrude more than 2 kinds of copolyester resins, composed of 5-99 mol % of ethyleneterephthalate and 1-95 mol % of ethylenenaphthalate or ethyleneisophthalate, having at least 0.005 dl/g of inherent viscosity difference each others, on 3-7 layers of multilayer sheet which had been arrayed by turns with high viscosity resin and low viscosity resin, and its outer layer has the higher inherent viscosity than the inner layer. Polyester multilayer sheet of the present invention is suitable for window glass substitute of building, transparent agricultural intercepting material and clothing material.

Polyester multilayer sheet having excellent impact strength and

Growing community of inventors

Seoul, South Korea

Yong Cheol Shin