Kolon Industries Inc.

Gumi, South Korea

Kolon Industries Inc.

Gumi, South Korea

Time filter

Source Type

Patent
Kolon Industries Inc. | Date: 2017-05-03

This invention relates to a highly heat-resistant polyamic acid solution and a polyimide film having improved thermal dimensional stability, wherein the polyamic acid solution includes a polymer of a diamine compound, containing 1 to 10 mol% of a carboxylic acid functional group-containing diamine compound based on the total amount of diamine, and a dianhydride compound, and the polyimide film includes polyimide, which is an imidized product of the polyamic acid solution and is configured such that main chains thereof are crosslinked through an amide bond (-CONH-).


Patent
Kolon Industries Inc. | Date: 2017-05-03

A method of preparing a polyester fabric for an airbag is provided, and particularly, a method of preparing a fabric for an airbag by inserting a predetermined weave into a selvage to provide the whole fabric with uniform tension upon weaving a high-density fabric for an airbag using a polyester yarn is provided.


The present invention provides a filament web type precursor fabric for an activated carbon fiber fabric by processes of: (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The prepared filament web type precursor fabric for an activated carbon fiber fabric has a structure in which the precursor filaments for preparing activated carbon fiber are spread in a web form and entangled with each other, and has a weight per unit area ranging from 50 to 500 g/m^(2). The present invention may achieve advantages of reducing manufacturing costs, easily controlling a weight of the precursor fabric, and increasing a permeability of the precursor fabric to thus improve a performance thereof, in the preparation of a web type precursor fabric for an activated carbon fiber fabric. When an activated carbon fiber fabric is manufactured by activating the filament web type precursor fabric for an activated carbon fiber fabric of the present invention, durability and crystallinity of yarns forming the above fabric may become higher and uniform, while improving a performance of forming microfine pores having a diameter of 1 to 2 nm, which are easy for hydrogen storage and removal of air pollutants.


Patent
Kolon Industries Inc. and KT & G Corporation | Date: 2017-05-03

This invention relates to a lyocell material for a tobacco filter and a method of manufacturing the same, and more particularly to a lyocell fiber having a modified cross-section for a tobacco filter, wherein the cross-sectional shape of a monofilament contained in a lyocell fiber is controlled to increase the external surface area of the fiber, after which then crimps are formed, thereby exhibiting properties equal or superior to those of conventional lyocell materials, even when used in a small amount.


Patent
Kolon Industries Inc. | Date: 2017-06-07

This invention provides a method of manufacturing a curable petroleum resin and a curable petroleum resin obtained therefrom. The method includes (a) a process of thermally polymerizing a composition for polymerization which includes silanes and monomers, including cyclic olefins having at least one ethylenically unsaturated group selected from among C5 fractions, C9 fractions, and dicyclopentadiene of naphtha cracking, thereby enabling petroleum resins, which are thermoplastic resins, to be applied as reactive adhesives, and ultimately being capable of providing eco-friendly reactive adhesives.


Patent
Kolon Industries Inc. | Date: 2017-06-28

The present invention provides a high-strength copolymerized aramid fiber which includes aramid copolymers containing an aromatic group substituted with a cyano group (-CN), so as to have an intrinsic viscosity (IV) of 6.0 to 8.5, a polydispersity index (PDI) of 1.5 to 2.0, a strength of 23 to 32 g/d, and an elastic modulus of 1,100 to 1,300 g/d. The high-strength copolymerized aramid fiber may be prepared by a method which includes, when para-phenylenediamine, cyano-para-phenylenediamine, and terephthaloyl dichloride are sequentially added to an organic solvent and reacted together to prepare a copolymerized aramid fiber, adding and dispersing a neutralizing agent in the organic solvent before the reaction of the para-phenylenediamine, cyano-para-phenylenediamine and terephthaloyl dichloride, which were dissolved in the organic solvent. In the present invention, hydrogen chloride (HCl) generated during polymerization of the para-phenylenediamine, cyano-para-phenylenediamine and terephthaloyl dichloride is directly removed by the neutralizing agent dispersed in the solvent while being changed into a metal salt, and therefore, acid crumbs are not generated but an additional salt is rather generated. As a result, it is possible to prepare an aramid copolymer, which has a high intrinsic viscosity (IV) and a low polydispersity index (PDI) since the gelation is delayed due to the acid crumbs, that is, the reaction time is extended, and which also has excellent solubility in an organic solvent due to the generation of the additional salt. Further, the high-strength copolymerized aramid fiber can be prepared with favorable spin property by using the aramid copolymer even without using sulfuric acid.


Patent
Kolon Industries Inc. | Date: 2017-07-26

Disclosed is a security film, including: a substrate layer, a nano-wire grid polarizer layer having a line grid pattern, and at least one information identification layer, wherein the substrate layer, the nano-wire grid polarizer layer and the information identification layer are stacked so that at least one information identification layer is provided in at least one position selected from among a position on an outer surface of the substrate layer, a position between the substrate layer and the nano-wire grid polarizer layer, and a position on an outer surface of the nano-wire grid polarizer layer. This invention can provide a high-dimensional information storage medium by combining a nano-wire grid polarization film, manufactured via a nano-imprinting process, with various security elements, making it possible to enhance security against illegal counterfeiting and copying.


The present invention relates to a suede type artificial leather having antifouling property in which a polymeric elastomer is impregnated in a nonwoven fabric formed by three-dimensionally interlacing ultrafine fibers and raising is formed, wherein the polymeric elastomer is a fluorine-containing modified polyurethane, and the fluorine-containing modified polyurethane is a product obtained by a polymerization reaction between a urethane prepolymer having isocyanate groups at terminals, obtained by reacting a diol and a diisocyanate, and a fluorinated carbon compound having hydroxy functional groups at both terminals, and has a weight average molecular weight (Mw) of 500,000 to 800,000. According to the present invention, the suede type artificial leather is prepared by using a fluorine-containing polyurethane elastomer having antifouling property during the preparation of the artificial leather, thus a separate fluorine-based surfactant for an antifouling property does not need and the surface change with the passage of time of the artificial leather caused by using a fluorine-based surfactant does not occur.


Patent
Kolon Industries Inc. | Date: 2017-08-09

Disclosed is an organic solar cell module, which ensures the easy integrated formation of a wiring terminal, an electrode charging unit, or a USB charging unit, and a method of manufacturing the same. The organic solar cell module includes a terminal molding unit having a wiring terminal, which is integrally molded between a first electrode layer formed on one end ofae module main body and a second electrode layer formed on a remaining end of the module main body, the wiring terminal being connected to a power supply. A method of manufacturing the organic solar cell module includes forming a module main body, and forming a terminal molding unit having a wiring terminal, which is integrally molded between a first electrode layer formed on one end of the module main body and a second electrode layer formed on a remaining end of the module main body, the wiring terminal being connected to a power supply. With the organic solar cell module and the method of manufacturing the same, the wiring terminal for connection with the power supply may be easily formed, and easy charging of batteries of various electronic appliances as well as electronic appliances that are chargeable via an USB is possible by integrating a charging unit or a USB charging unit in the organic solar cell module. In addition, as a result of integrating the charging unit or the USB charging unit in the organic solar cell module, the number of processes of connecting the wiring terminal may be minimized, and increased durability and the easy charging of various electronic appliances may be accomplished.


Patent
Kolon Industries Inc. | Date: 2017-08-02

This invention relates to a method of manufacturing an optical sheet, including: (S1) forming a single layer by feeding a curable resin composition, (S2) obtaining the single layer having a transferred nanopattern on a surface thereof by passing the single layer formed in (S1) through a release mold having a nanopattern having a pitch of 50 to 500 nm and an aspect ratio of 1.0 to 5.0, and (S3) curing the single layer having the transferred nanopattern obtained in (S2).

Loading Kolon Industries Inc. collaborators
Loading Kolon Industries Inc. collaborators