Lg Chem, Ltd

Shengyi Technology Co., Ltd.

Young Ji Tae

Bi Oh Ryu

Il Hwan Choi

Soonyong Park

Youngseok Park

Young Seok Park

Soon Yong Park

Kwan Yeol Paek

Kwanyeol Paek

Jin Young Park

Yeongrae Chang

Chong Kyu Shin

Dong Mok Shin

Byeong In Ahn

Sang Soon Choi

Bong Keun Lee

Yongjoon Heo

Jae Hyuk Chang

Chang Hoon Sin

Jiae Yeo

Na Ri Kim

The present invention relates to a polyamide resin film having improved light resistance by minimizing color difference variation rate due to long-term ultraviolet irradiation, and a resin laminate using the same.

Polyamide resin film and resin laminate using the same

The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a UV-cut slope (dT/dλ) measured for a specimen having a thickness of 45 μm or more and 55 μm or less according to ASTM E424 is 0.25 or more in the range of 10% to 80% transmittance, and a polymer film and resin laminate using the same. In addition, the present invention relates to a polyamide resin with characteristic profile in which a small-angle X-ray scattering function obtained by irradiating the polyamide resin with X-rays having an energy of 10 KeV to 20 KeV using a small-angle X-ray scattering apparatus satisfies Equation 1 and Equation 2, and a polymer film and resin laminate using the same.

Polyamide resin, and polymer film, resin laminate using the same

The present invention relates to a polyamide resin having a main chain having a structure in which two polyamide segments are linked in an alternating way, a preparation method thereof, and a polyamide film and resin laminate including the same.

Polyamide resin, preparation method therefof, and polyamide film and resin laminate comprising the same

The present disclosure relates to a polymer resin composition including a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is reduced through an alternating segment structure, and at least one selected from the group consisting of a metal salt compound and an end-capping agent compound, and a polymer film and a resin laminate using the same.

Polymer resin composition, and polymer film, resin laminate using the same

The present invention relates to a polyamide resin film having improved UV shielding function by using a polyamide resin having a backbone chain of alternative structure of two types of polyamide segments; and a resin laminate using the polyamide resin film.

The present disclosure relates to a cover window for a flexible display device including a polymer substrate including a polyamide resin; and a hard coating layer formed on at least one surface of the polymer substrate, wherein a yellow index of the polymer substrate measured in accordance with STM E 313 is 4.00 or less, and an elastic modulus of the polymer substrate measured at a strain rate of 12.5 mm/min in accordance with ISO 527-3 is 4 to 9 GPa.

Cover window for flexible display device and flexible display device

The present disclosure relates to a polyamide block copolymer and a polyamide film including the same. The polyamide block copolymer according to the present disclosure makes it possible to provide a polyamide film exhibiting excellent mechanical properties while being colorless and transparent.

Polyamide block copolymer and polyamide film including the same

The present invention relates to an aromatic poly(amide-imide) copolymer film having high retardation in the thickness direction and exhibiting a low moisture absorption rate, and a method for preparing the same.

Poly(amide-imide) copolymer film and method for preparing same

A plastic laminated film comprising a first layer comprising a polyamideimide copolymer and a second layer provided on at least one surface of the first layer and comprising a polyimide copolymer. The plastic laminated film has both excellent mechanical properties and UV weathering resistance while being colorless and transparent, and can be suitably used as cover films for various flexible or foldable devices.

Plastic laminated film

Polyamide film laminate

The present invention relates to a polyamideimide copolymer and a colorless and transparent polyamideimide copolymer film. The polyamideimide copolymer according to the present invention enables to provide a polyamideimide film having improved UV shielding function while exhibiting excellent scratch resistance and mechanical properties.

Polyamideimide copolymer and polyamideimide film comprising the same

A poly(amide-imide) copolymer composition comprising an imide of a polyamic acid and an ultraviolet stabilizer, and a colorless and transparent poly(amide-imide) film including the composition. The poly(amide-imide) copolymer composition according to the present disclosure makes it possible to provide a poly(amide-imide) film exhibiting excellent scratch resistance, UV shielding property, and UV weather resistance while being colorless and transparent. This film can be suitably used as a cover film of various flexible or foldable devices.

Poly(amide-imide) copolymer composition and colorless and transparent poly(amide-imide) film comprising the same

A polyamideimide copolymer which is an imide of a polyamic acid resulting from copolymerizing an aromatic diamine monomer, an aromatic dianhydride monomer, and an aromatic dicarbonyl monomer and a colorless and transparent polyamideimide film including the polyamideimide copolymer. The polyamideimide copolymer according to the present disclosure makes it possible to provide a polyamideimide film exhibiting excellent scratch resistance while being colorless and transparent.

Polyamideimide copolymers and colorless and transparent polyamideimide film comprising the same

The present invention relates to an adhesive resin composition including a styrene-ethylene-butylene-styrene copolymer with a specific chemical structure, an epoxy resin, an acid anhydride compound, and a curing catalyst, an adhesive film obtained from the resin composition, and a flexible metal laminate including the adhesive film.

Adhesive resin composition, adhesive film, and flexible metal laminate

Disclosed is a sulfonated multiblock copolymer, which comprises a hydrophilic block (X) having a repeating unit represented by the following formula 1a, and a hydrophobic block (Y) having a repeating unit represented by the following formula 2, wherein the number (m) of the repeating unit of formula 1a in the hydrophilic block (X) and the number (n) of the repeating unit of formula 2 in the hydrophobic block (Y) satisfy the conditions of 4&#x2266;m&#x2266;400 and 4&#x2267;n&#x2267;400. An electrolyte membrane obtained from the sulfonated multiblock copolymer and a fuel cell using the electrolyte membrane are also disclosed:Ar&#x2014;O&#x2014;Ar&#x2014;O&#x2003;&#x2003;[Formula 1a]Ar&#x2014;O&#x2014;Ar&#x2014;O&#x2003;&#x2003;[Formula 2]

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Daejeon, South Korea

Young Ji Tae