Patent application number | Description | Published |
20110024013 | DRAWN POLYETHYLENE TEREPHTHALATE (PET) FIBER, PET TIRE CORD, AND TIRE COMPRISING THEREOF - 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° C. for 1 minute under the initial load of 20g/1000d. | 02-03-2011 |
20110024016 | UNDRAWN POLYETHYLENE TEREPHTHALATE (PET) FIBER, DRAWN PET FIBER, AND TIRE-CORD COMPRISING THE SAME - The present invention relates to an undrawn PET fiber and a drawn PET fiber those can provide a cap ply cord and the like showing more improved modulus and good dimensional stability, and a tire cord including the same. The undrawn PET fiber may be a fiber of which the crystallinity is 25% or more, the birefringence index is 0.085 to 0.11, the amorphous orientation factor (AOF) is 0.15 or less, and the melting temperature (Tm) is 258° C. or more. | 02-03-2011 |
20110108178 | POLY(ETHYLENETEREPHTHALATE) TIRE CORD, 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: | 05-12-2011 |
20130059142 | FILM FOR A TYRE INNER LINER AND PRODUCTION METHOD THEREFOR - This invention relates to a film for a tire inner liner, which includes a copolymer including a polyamide-based segment and 5˜50 wt % of a polyether-based segment relative to the total weight of the film, and has a thickness 30˜300 μm, and to a method of manufacturing the film for a tire inner liner, including polymerizing a polyamide-based resin or its precursor with 5˜50 wt % of a polyether-based resin relative to the total weight of the film, thus preparing a copolymer, and melting and extruding the copolymer, thus forming a film. | 03-07-2013 |
20130101821 | FILM FOR TIRE INNER LINER AND METHOD FOR MANUFACTURING THE SAME - This disclosure relates to a film for a tire inner liner including: a base film including a copolymer or mixture of a polyamide-based resin and a polyether-based resin; and an adhesive layer including a resorcinol-formalin-latex (RFL)-based adhesive, and a method for manufacturing the same. | 04-25-2013 |
20130192736 | 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° 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. | 08-01-2013 |
20130199686 | FILM FOR A TIRE INNER LINER AND PREPARATION METHOD THEREFOR - 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. | 08-08-2013 |
20130273358 | FILM FOR TIRE INNER LINER, 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. | 10-17-2013 |
20140299246 | DRAWN POLYETHYLENE TEREPHTHALATE FIBER, PET TIRE CORD, AND TIRE COMPRISING THEREOF - 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° C. for 1 minute under the initial load of 20g/1000d. | 10-09-2014 |
20140352273 | POLY(ETHYLENETEREPHTHALATE) DRAWN FIBER, POLY(ETHYLENETEREPHTHALATE) TIRE-CORD AND MANUFACTURING METHOD THEREOF - The present invention relates to a poly(ethyleneterephthalate) drawn fiber, which is able to provide a poly(ethylene terephthalate) tire-cord showing superior strength and dimensional stability without a PCI process after tire vulcanization, a poly(ethylene terephthalate) tire-cord and a manufacturing method thereof. The poly(ethyleneterephthalate) drawn fiber has a predetermined L/S value of 2.0 kg/% or more after heat treatment at a temperature of 180° C. under an initial load of 0.02 g/d for 2 minutes. | 12-04-2014 |