摘要:
The present invention relates to a drawn poly(ethyleneterephthalate) (PET) fiber exhibiting excellent dimensional stability and uniform properties while having high fineness of 2000 denier or more, a tire cord, and their preparation method. The drawn PET fiber includes PET 90 mol% or more, and has a crystallinity of 40 to 50%, an amorphous orientation factor (AOF) of 0.01 to 0.2, a monofilament fineness of 2.5 to 4.0 denier, a coefficient of variation (CV) of cross sectional area of 8.0 % or less, and a total fineness of 2000 to 4000 denier.
摘要:
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.
摘要:
This invention relates to a film for a tire inner liner, which includes a copolymer including a polyamide-based segment and 5 ˆ¼ 50 wt% of a polyether-based segment relative to the total weight of the film, and has a thickness 30 ˆ¼ 300 µ m, and to a method of manufacturing the film for a tire inner liner, including polymerizing a polyamide-based resin or its precursor with 5ˆ¼50 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.
摘要:
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 resoreinol-formalin-latex (RFL)-based adhesive, and a method for manufacturing the same.
摘要:
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.