Kolon Industries, Inc.

Si Min Kim

Yun Jo Kim

Dong Jin Kim

Sang Hyun Kim

Ho Joon Park

Gi Sang Song

Du H Kim

Hak M Kim

Moo S Rhim

Ink S Han

Sang-Hyun Baek

Chan Seok Yoon

Jong T Park

Seog C Yoo

Sa Ng Park

Sung Ho Lee

Dong-Hyeon Choi

Sang Bong Park

Il Chon Kwon

Hong Hee Jung

Chong Won Kim

Suk Won Choi

Jung-Seok Kim

Han Soo Park

Seog O Yoo

John T Park

Provided are a polyester film that is usable for protecting a surface of a metal plate of a construction material, a decorative material, an interior material, an electronic product, etc., and a manufacturing method therefor, and a polyester mold product using the same and a manufacturing method therefor, wherein the polyester film has low orientation and low modulus to have excellent moldability.

Polyester film and manufacturing method therefor, and polyester mold product using same and manufacturing method therefor

Provided are a polyester white film and a back sheet for a solar cell module using the same, and in particular, provided is a polyester white film having improved light reflectance.

Back sheet for solar cell module and method for manufacturing the same

Provided is a polyester film having excellent high-temperature dimensional stability. More particularly, provided is a method for producing a polyester film, including: a) extruding and cooling a polyester resin to provide a non-oriented sheet; b) orienting the sheet in the machine direction (MD); c) orienting the MD oriented sheet in the transverse direction (TD); d) heat treating the sheet; and e) carrying out simultaneous relaxation by subjecting the heat treated sheet to MD relaxation at a ratio of 1% or higher, while subjecting it to TD relaxation in a tenter. Provided also is a polyester film obtained by the method.

Polyester film and manufacturing method thereof

The present invention relates to a metalizing film including a polyester-based film layer having a heat-shrinking property, and a use of the metalizing film used as a film label capable of replacing a paper label attached to a glass bottle.

Polyester-based metalizing film

Provided are a film for food packaging, capable of having excellent adhesion with a metal deposition layer and thus retaining moisture barrier property while having superior flexibility, transparency, and biodegradability, and a method for manufacturing the same.

Shrinkable film and method for manufacturing same

Disclosed is a thermo-shrinkable polyester film in which shrinkage uniformity is ensured in a shrinking process thus realizing superior quality of the outer appearance without causing a poorly printed state, reducing the production cost of the shrinking process and improving the productivity.

Thermo-shrinkable polyester film

The present invention relates to a heat-shrinkable polyester-based single-layer film which has superior shrinkability and color, and thus provides aesthetic enhancement to the product to which the film is attached when the film is printed. Therefore, the polyester-based single-layer film of the present invention can be valuably used as a label film as it can replace labels made of paper, and can be easily peeled off by means of hot water, thus contributing to the recycling of bottles.

Heat-shrinkable polyester-based single-layer film

Disclosed is a polyester film for optical applications, and more specifically to a polyester film having refractive index of 1.6 to 1.7 and a film having refractive index of 1.4 to 1.6 on both surfaces of the polyester film, wherein a thickness of each coating layer is 0.03 to 0.1 &#x3bc;m and total light transmittance of the entire film is 93% or more. The polyester film according to the embodiment has total light transmittance higher than the polyester film without the coating layer and is more suitable to use the polyester film for optical applications due to the excellent adhesive strength between the polyester film and layer for the post-processing working.

Polyester film for optical application

Provided is a protective film including two or more transparent plastic substrates having a functional coating layer formed thereon and laminated successively by way of an adhesive layer.

Protective film

Disclosed is a thermo-shrinkable polyester film having superior thermal shrinkage properties. The thermo-shrinkable polyester film has a strength of 3.5&#x2dc;6.5 kg/mmin a direction perpendicular to a main shrinking direction at an initial elongation less than 10%, an elongation at rupture of 50&#x2dc;700% in a direction perpendicular to a main shrinking direction, a thickness uniformity (&#x394;R) of 4 or less and a shrinkage ratio of 5% or less in a direction perpendicular to a main shrinking direction, thus preventing the rupture thereof in a rolling process and so on and ensuring process stability and productivity.

A fiber product comprising one or more fibers of aromatic polyamide polymer having a microscopic structure of an extended molecular chain, free of crystal defect layers perpendicular to the fiber axis, a high inherent viscosity of at least 3.0 [dl/g], and a high tensile strength of at least 15 g/d, said inherent viscosity being determined at 30.degree. C. using a concentration of 0.5 grams of said polymer in 100 ml of concentration sulfuric acid.

Aromatic polyamide fiber free of crystal defect layers perpendicular to

A process for preparing aromatic polyamide film wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, continuously extruding through a film die under a draw ratio or subjecting to a shear and contacting the prepolymer with a second solvent which is a polymerization accelerating-precipitation solvent to obtain an aromatic polyamide film free of crystal defect layer perpendicular to the film axis and having high strength and a high degree of molecular orientation.

Two-stage process for preparing aromatic polyamide film

A process for preparing aromatic polyamide fibers wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, and the liquid crystalline prepolymer dope is subjected to a molecular orientating polymerization in a polymerization accelerating-precipitation solvent to provide aromatic polyamide fibers free of a crystal defect layer perpendicular to the fiber axis and having high strength and high degree of molecular orientation.

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Daegu, South Korea

Si Min Kim