Kolon Industries, Inc.

Continental Reifen Deutschland Gmbh

Nsb Co., Ltd.

Il Kyung Chung

Gi-Woong Kim

Ok-Hwa Jeon

So-Yeon Kwon

Sang-Mok Lee

Si-Min Kim

Young-Han Jeong

Sung Ho Park

Dong-Jin Kim

Min Ho Lee

Sung-ho Park

Yun-Jo Kim

Sung-Ho Park

Michael Schunack

Young-Se Oh

Ok Wha Jeon

Nermeen Nabih

Hyun Namgoong

Dong-Hyeon Choi

Ki-Sang Song

Woo-Chul Kim

Jae-Woong Lee

Ki Sub Lim

Jin Wook Heo

Ki Jeong Kim

Se Gie Kim

Jong-Cheol Jeong

Yun Sik Choi

Hyo Eun Kim

Hwa Jin Suh

Thomas Kramer

Song-Yeon Choi

This invention relates to high tenacity yarn for a tire cord comprising polyethyleneterephthalate multifilament obtained by melting and spinning a resin composition comprising first polyethyleneterephthalate and second polyethyleneterephthalate having different intrinsic viscosities, and a method for preparing the same.

Yarn for tire cord and tire cord

A multi-layer fabric, and an airbag formed of the multi-layer fabric are provided. The multi-layer fabric can provide an airbag capable of sufficiently protecting a driver or a passenger by minimizing damage caused by broken glass fragments when a vehicle is overturned. The multi-layer fabric includes an inflating part, and a co-woven part surrounding the inflating part. At least one layer of the inflating part includes a first region formed of two or more types of weaves comprising 1/1 plain weave.

Multi-layer fabric

The present invention relates to a honeybee pollen composition, and more particularly to a honeybee pollen composition prepared by mixing solidified honeybee pollen with distilled water and an admixture consisting of a dispersant, a preservative, a thickener, an antioxidant, or a neutralizer and then performing pulverization with a particle size of 100 to 500 nm, resulting in an efficient disruption of cell walls of the honeybee pollen and making the composition into a formulation available for easier ingestion in the body or skin, where the admixture, including a dispersant, a preservative, a thickener, an antioxidant, a neutralizer, etc., is added to the solidified honeybee pollen in the pulverization process to increase the stability, antioxidant effects and polyphenol content of the honeybee pollen composition, thereby acquiring availability of the composition as a cosmetic material or a pharmaceutical composition.

Honeybee pollen composition

There is provided a polymer film which includes: a base film layer including a polyamide-based resin having a particular relative viscosity and a copolymer including a polyamide-based segment and a polyether-based segment having a specific content; and an adhesive layer formed on at least one side of the base film layer, wherein a ratio of the melt viscosity of the copolymer to the melt viscosity of the polyamide resin is 0.65 to 1.2 at a shear rate of 1000 sand a temperature of 260&#xb0; C.

Polymer films

This disclosure relates to a film for a tire inner liner film that may exhibit uniform excellent physical properties over all directions when applied to a tire, and may secure excellent durability and fatigue resistance in a tire manufacturing process or in an automobile running process, a method for manufacturing the film for a tire inner liner, a pneumatic tire using the tire inner liner film, and a method for manufacturing the pneumatic tire using the tire inner liner film.

Film for tire inner liner, method for manufacturing film for tire inner liner, pneumatic tire, and method for manufacturing pneumatic tire

Disclosed are a hybrid fiber cord comprising a nylon filament and an aramid filament, the cord having more uniform physical properties and better strength and fatigue properties and being able to be made more easily than the conventional hybrid fiber cords such that it can be used to make an ultra high performance tire, and a method for manufacturing the same. The hybrid fiber cord comprises a nylon primarily-twisted yarn having a first twist number, and an aramid primarily-twisted yarn having a second twist number. The first twist number is identical with the second twist number. The nylon and aramid primarily-twisted yarns are secondarily-twisted together to have identical structures with each other.

Hybrid fiber cord and method for manufacturing the same

The present invention relates to a film for a tire inner liner including a base film layer including a copolymer or a mixture of a polyamide-based resin and a polyether-based resin, and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and having low shrinkage rate when elongated at a high temperature and then cooled to room temperature, and a method for manufacturing the same.

Film for tire inner liner, and method for manufacturing the same

The present invention relates to a film for a tire inner liner, particularly to a film for a tire inner liner including: a base film including a copolymer or a mixture of polyamide-based resin and a polyether-based resin; and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, wherein the base film has a tensile recovery rate of 30% to 80%. The film for a tire inner liner of the present invention may exhibit an excellent gas barrier property with a thin thickness, and thus enables light weight of a tire and improvement in automobile mileage, and enables easier forming during a tire manufacturing process.

Film for a tire inner liner and preparation method therefor

The present invention relates to a film for a tire inner liner including: a base film layer including polyamide-based resin and a copolymer including a polyamide-based segment and a polyether-based segment; and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, wherein there is little difference between properties in an MD (machine direction) and a TD (transverse direction), and a method for preparing a film for a tire inner liner, including melting the polyamide-based resin and the copolymer at 230 to 300&#xb0; C., extruding the molten substance under specific die gap conditions to form a base film, and forming an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive on the base film.

Disclosed are a preparation method for drawn fibers that enables the preparation of drawn poly(ethyleneterephthalate) fibers exhibiting with high fineness of at least 2,000 denier while having high tenacity and excellent dimensional stability and causes almost no deterioration of tenacity during the manufacturing process of tires such as vulcanization, and a drawn poly(ethyleneterephthalate) fiber and a tire cord that are obtained by the preparation method. The preparation method for drawn poly(ethyleneterephthalate) fiber includes: melt-spinning a polymer comprising at least 90 mol % of poly(ethyleneterephthalate) having a content of terminal carboxyl group (&#x2014;COOH) in the range of 20 to 30 eq/10g at a spinning speed of 2,500 to 4,000 m/min to form a undrawn fiber having a fineness of at least 2,000 denier; and drawing the undrawn fiber at a draw ratio of 1.4 to 2.4.

Preparation method for drawn poly (ethyleneterephthalate) fiber, drawn poly (ethyleneterephthalate) fiber, and tire cord

The present invention relates to a drawn PET fiber that can provide a cap ply cord and the like showing more improved modulus and good dimensional stability, a PET tire cord, and a tire including the same. The drawn PET fiber may be a fiber including 90 mol % or more of PET, of which the crystallinity is 53% or more, the amorphous orientation factor (AOF) is 0.15 or less, and the birefringence index is 0.14 to 0.16, after heat-treating the same at 230&#xb0; C. for 1 minute under the initial load of 20 g/1000 d.

Drawn polyethylene terephthalate fiber, pet tire cord, and tire comprising thereof

Disclosed are a method for manufacturing a drawn fiber, which is suitable for manufacturing a poly(ethylene terephthalate) drawn fiber showing superior strength and dimensional stability and having a high fineness of 2000 denier or more without breakage or reduction in physical properties during the manufacturing process, and a poly(ethylene terephthalate) drawn fiber and a tire-cord obtained therefrom.

Method for manufacturing poly(ethyleneterephthalate) drawn fiber, poly(ethyleneterephthalate) drawn fiber and tire-cord

The present invention relates to a drawn PET fiber which has good dimensional stability, thereby increases the high speed driving performance of a tire, a PET tire cord, their preparation methods, and a tire including the same. The drawn PET fiber may includes 90 mol % or more of PET and may be a fiber of which a creep rate is 5.5% or less when the drawn PET fiber is fixed under the initial load of 0.01 g/d and is kept for 24 hours under the load of 0.791 g/d and the temperature of 100&#xb0; C. Furthermore, the PET tire cord may be a cord of which a creep rate is 4.0% or less when the PET tire cord is fixed under the initial load of 0.01 g/d and is kept for 24 hours under the load of 0.791 g/d and the temperature of 100&#xb0; C.

Drawn poly(ethyleneterephthalate) fiber, poly(ethyleneterephthalate) tire-cord, their preparation method and tire comprising the same

Disclosed is a PET tire cord which has a flat spot index (FSI) defined by the following Calculation Formula 1 of 5.0% or less:Flat Spot Index (FSI)(%)=()/&#xd7;100&#x2003;&#x2003;Calculation Formula 1wherein, Lis an initial length of the tire cord, Lis a length of the tire cord that is measured after providing a load corresponding to 13% of the strength at break of the cord for 5 minutes at 120&#xb0; C. and cooling the same to 24&#xb0; C. while maintaining the load, and Lis a length of the tire cord that is measured after providing a load corresponding to 13% of the strength at break of the cord for 5 minutes at 120&#xb0; C. and cooling the same to 24&#xb0; C. while remaining the load of 0.01 g/d only.

Growing community of inventors

Daegu, South Korea

Il Kyung Chung