Lg Chem, Ltd

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Lg Chemical Co., Ltd.

Chong-Kyu Shin

Jae-Hong Kim

Phill Lee

Young-Ju Lee

Seung-Pyo Jeong

Young-Hoon Ko

Hye-Jin Kwon

Bong-Keun Lee

Seung-Yup Lee

Young-ji Tae

Yong-su Park

Tae-Ho Kim

Sang-hyun Lee

Yeong-Rae Chang

Sang-Hyun Lee

Joung-Eun Yoo

Jae-hyuk Chang

Jong-Chan Lee

Joon-Koo Kang

Jong-Sung Yu

Go-Young Moon

Hwang-chan Yoo

Young-Ji Tae

Yun-Kyung Kim

Chang-ae Cho

Jung-hye Won

Dirk Henkensmeier

Keun-Won Song

Tae-Hyeong Kim

Byung-Ho Jeon

Joong-Jin Han

Jae-Hyuk c/o Lg Chem Research Park Chang

Bong-Keun 103-306 Lucky Hana Apt Lee

Go-Young 315-101 Songgang Green Apt Moon

Hwang-Chan 812-501 Yeolmae Maeul Apt Yoo

Jae-Hyuk 309-1206 Chungsol Apt Chang

Yong-Su Park

Jae-Hyuk Chang

Chang-Ae Cho

Hwang-Chan Yoo

The present disclosure relates to a water-treatment separation membrane including: a porous support and a polyamide layer formed on the porous support, wherein the polyamide layer contains an antioxidant having a solubility parameter value of 9 (J/cm)to 22 (J/cm), and a method of manufacturing the same.

Polyamide water-treatment separation membrane having superior oxidation resistance and chlorine resistance properties, and method of manufacturing the same

A water-treatment separation membrane with good antifouling properties includes a support having pores, a polyamide layer formed on the support, and a passivation layer comprising specific materials formed on the polyamide layer.

Polyamide water-treatment separation membrane with improved antifouling properties and manufacturing method thereof

A water treatment separation membrane includes a support having pores, a polyamide layer formed on the support, and a passivation layer formed on the polyamide layer by using an aqueous solution including an amine-containing compound, an epoxy-containing compound and a fluorine-containing compound.

Separation membrane having excellent antifouling properties for water treatment and manufacturing method thereof

There are provided a method of manufacturing a reverse osmosis membrane and a reverse osmosis membrane manufactured thereby. The method includes forming a polysulfone layer by applying a solution including a mixed solvent containing two or more solvents having different solubility parameter values to a surface of a porous support; and forming an active layer on the polysulfone layer.

Method of manufacturing reverse osmosis membrane, and reverse osmosis membrane manufactured thereby

The present invention relates to a reverse osmosis membrane including: a porous support; and a polyamide active layer formed on the porous support and including zeolite, surface-treated with a compound having at least one functional group selected from a group consisting of an amino group and a glycidyl group, and a method of manufacturing the same.

High permeate flux reverse osmosis membrane including surface-treated zeolite and method of manufacturing the same

A water-treatment separating membrane includes a polyamide active layer formed on999 a porous support. The ratio of a maximum value with respect to a minimum value of a ratio of a peak height of a C&#x2550;O double bond of a carboxyl group (&#x2014;COOH) with respect to a peak height of a C&#x2550;O double bond combined with an amide group (&#x2014;CONH&#x2014;) is from 1.2 to 4, when measured after acid treating the polyamide active layer and by using a Fourier transform infrared spectrometer (FTIR).

Water-treatment separating membrane of high flux having good chlorine resistance

A water-treatment separating membrane includes a polyamide active layer formed on a porous support. When the polyamide active layer is dyed using a 5% aqueous solution of Rhodamine B, at least a curve pattern formed by connecting two or more arcs is formed in at least a partial area of the polyamide active layer.

A method of manufacturing a water-treatment separating membrane includes forming an aqueous amine solution layer on a porous support, and forming a polyamide active layer by dropping droplets of an organic solution including an acyl halide compound on the aqueous amine solution layer. A water-treatment separating membrane manufactured by the same also is provided.

Water-treatment separating membrane of high flux having good chlorine resistance and method of manufacturing the same

The present invention relates to a reverse osmosis membrane including a porous support including a polysulfone layer; and a polyamide active layer formed on the porous support, wherein a concentration of sulfur (S) detected on a surface of the polyamide active layer is 1.8&#xd7;10units or less on average or a concentration of sulfur dioxide (SO) detected on the surface of the polyamide active layer is 7&#xd7;10units or less on average, and a method of manufacturing a reverse osmosis membrane, the method including forming a porous support; and forming a polyamide active layer on the porous support by interfacially polymerizing a polyfunctional amine solution including a carbodiimide compound, and a polyfunctional acid halide compound solution.

High permeate flux reverse osmosis membrane including carbodiimide compound and method of manufacturing the same

There is provided a reverse osmosis membrane including a porous support; a polysulfone layer formed on the porous support and having pores formed in a surface thereof, pores having a diameter of 40 nm or greater accounting for less than 0.5% of total pores; and an active layer.

Reverse osmosis membrane

The present disclosure relates to a method of manufacturing a water treatment membrane having high chlorine resistance and high permeability, the method including: forming an aqueous amine solution layer on a porous support, using an aqueous amine solution including a fluorine compound having an epoxy group in a terminal thereof and an amine compound; and forming a polyamide layer containing the fluorine compound by bringing an organic solution containing acyl halide into contact with the aqueous amine solution layer, and a water treatment membrane manufactured using the same.

Water treatment membrane having high chlorine resistance and high permeability and method of manufacturing the same

There are provided a reverse osmosis membrane comprising a porous support; a silver nanowire layer formed on the porous support; and a polyamide film formed on the silver nanowire layer, and a fabrication method of a reverse osmosis membrane, the method comprising coating a porous support with an aqueous amine solution including silver nanowires to form a silver nanowire layer; and bringing the silver nanowire layer into contact with an aliphatic hydrocarbide-based organic solution including acyl halide to form a polyamide film.

Reverse osmosis membrane including nano-silver wire layer and fabrication method thereof

A reverse osmosis separation membrane includes a porous support, a separation active layer formed on the supporting layer, and a ultra hydrophilic layer formed on the separation active layer. The ultra-hydrophilic layer includes a complex metal oxide including at least one metal element selected from the group consisting of Ti(IV), Zr(IV), Sn(IV) and Al(III), and Si, and an organic compound containing a hydrophilic group making a physical or chemical bond with Ti(IV), Zr(IV), Sn(IV) or Al(III) among the complex metal oxide. A method of manufacturing the reverse osmosis separation membrane also is provided. A reverse osmosis membrane including a single coating layer and having an improved durability, chlorine-resistance and antifouling properties may be provided.

Reverse osmosis membrane including ultra-hydrophilic passivation layer and method of manufacturing the same

A reverse osmosis membrane includes a porous support, a polyamide active layer formed on the porous support, and a coating layer including a copolymer including an amphoteric ionic compound and glycidyl (meth)acrylate. The coating layer makes a chemical bond with the polyamide active layer. A method of manufacturing the reverse osmosis membrane also is disclosed.

Reverse osmosis membrane having good antifouling properties and method of manufacturing the same

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Daejeon, South Korea

Chong-Kyu Shin