摘要:
The present invention relates to a stent which is inserted into a stenosed bile duct to enlarge the bile duct. The stent includes a plurality of hooks which extend outwards from the main body of the stent at a predetermined angle and are spaced apart from each other. Therefore, when the stent is inserted into the bile duct, the hooks that extend outwards from the main body at a predetermined angle are hooked to the inner surface of the bile duct, thus preventing the stent from slipping relative to the bile duct.
摘要:
The present invention relates to a composition for producing a high heat resistance insulating material, and an insulated cable having the same. A composition for producing a high heat resistance insulating material according to the present invention comprises 0.5 to 10 parts by weight of a crosslinking agent based on 100 parts by weight of a fluorine-based rubber. The present invention provides an insulated cable that is capable of sending more electric current at least twice than an allowable current capacity based on a cross-sectional area of a conductor of a conventional cable. Therefore, the present invention can reduce an outer diameter of an insulated cable by 30% or more and the weight by 40% or more in comparison with the conventional cable, and thus provides the insulated cable with lightweight and flexibility.
摘要:
Disclosed is an optical cable with a secondary sheath for surrounding and protecting a plurality of optical fiber units in which at least 1-core optical fiber is mounted in a buffer tube, wherein the secondary sheath is made of a mixture including 100 parts by weight of base resin selected from the group consisting of low density polyethylene, linear low density polyethylene, and their mixture; and 0.2 to 60 parts by weight of inorganic additive. The secondary sheath of this optical cable shows excellent cutting and tear characteristics and ensures easy contact and divergence.
摘要:
Disclosed are a composition for a cable-covering material used in railway vehicles, and a cable for railway vehicles using the same. The present invention provides the halogen-free flame retardant composition including 100 parts by weight of a base resin including ethylene-vinylacetate copolymers; 60 to 250 parts by weight of mixed metal hydroxide as a halogen-free flame; 1 to 30 parts by weight of a flame-retardance auxiliary; 0.5 to 5 parts by weight of a silane-based coupling agent; 0.5 to 8 parts by weight of a cross-linking formulation; and 3 to 15 parts by weight of a cross-linking agent. The composition according to the present invention may be used in the cable-covering material for railway vehicles under the extreme conditions because it has excellent properties such as resistance against dynamic pressure at high temperature and durability, as well as low smoke and flame retardance upon its combustion.
摘要:
Disclosed are a flame retardant composition for a cable covering material and an ocean cable using the same. The flame retardant composition of the present invention includes 100 parts by weight of a base resin; 30˜150 parts by weight of a flame retardant; 1-30 parts by weight of a cold resistant plasticizer; 0.5˜10 parts by weight of a silane coupling agent; 0.5-8 parts by weight of a co-crosslinking agent; and 3-20 parts by weight of a crosslinking agent, and the ocean cable using the same. The composition for a cable covering material according to present invention has an excellent oil resistance to oil components without deteriorating mechanical properties, and has a superior durability such as a cold resistance at −40° C. as well as minimally generates toxic gases upon firing and has an excellent flame retardancy.
摘要:
The present invention relates to a composition for manufacturing insulation materials of an electrical wire and an electrical wire manufactured using the same. The composition for manufacturing insulation materials of an electrical wire according to the present invention includes 100 parts by weight of a base resin, made by blending 20 to 70 weight % of any one resin of an unsaturated organosilane grafted polyethylene and an unsaturated organosilane grafted ethylene alpha olefine copolymer, and 30 to 80 weight % of an unsaturated organosilane grafted ethylene copolymer; 10 to 25 parts by weight of a brominated flame retardant; 10 to 50 parts by weight of an inorganic flame retardant; and 0.2 to 5 parts by weight of compound, as a crosslink retardant, represented as a general formula of XnSi(OR)4-n (X is a phenyl group, R is a methyl group and n is an integer of 1 to 3).
摘要:
An apparatus and method for data transmission in a base station (BS) of a wireless communication system are provided, storing data to be transmitted to a mobile station which performing handover to a target base station; confirming a quantity of stored data; determining whether to transmit the stored data to the target based at least partly on the confirmed quantity of the stored data; transmitting the stored data to the target base station when the base station determines to transmit the stored data to the target base station.
摘要:
Disclosed are a composition for a cable-covering material used in railway vehicles, and a cable for railway vehicles using the same. The present invention provides the halogen-free flame retardant composition including 100 parts by weight of a base resin including ethylene-vinylacetate copolymers; 60 to 250 parts by weight of mixed metal hydroxide as a halogen-free flame; 1 to 30 parts by weight of a flame-retardance auxiliary; 0.5 to 5 parts by weight of a silane-based coupling agent; 0.5 to 8 parts by weight of a cross-linking formulation; and 3 to 15 parts by weight of a cross-linking agent. The composition according to the present invention may be used in the cable-covering material for railway vehicles under the extreme conditions because it has excellent properties such as resistance against dynamic pressure at high temperature and durability, as well as low smoke and flame retardance upon its combustion.
摘要:
The present invention relates to a composition for manufacturing insulation materials of an electrical wire and an electrical wire manufactured using the same. The present invention provides a composition for manufacturing insulation materials of an electrical wire having a multilayer structure, which is used for manufacturing a first insulation coating layer made of a composition including a predetermined base resin, an antioxidant and a co-crosslinking agent so as to surround a conductor or a conductor bundle for an electrical wire; a second insulation coating layer made of a composition including a base resin polyvinylidene fluoride (PVDF), a predetermined antioxidant and a co-crosslinking agent so as to surround the first insulation coating layer, and an electrical wire manufactured using the same. According to the present invention, light-weigh products may be produced, and also an electrical wire or wire products used under a high-temperature environment have advantageous properties since the composition is excellent in a mechanical property and a thermal resistance and capable of maintaining physical properties at a high temperature of at least 150° C. for a long time.
摘要:
Disclosed are an optical fiber unit in which at least 1-core optical fiber is mounted in and protected by a buffer tube, and an optical cable including the optical fiber unit. The buffer tube is made of a mixture, which includes a composite resin including a resin selected from polyolefin polymer, nitrile rubber and their mixture, and plasticized polyvinylchloride; and an inorganic additive, wherein, in a stress-strain curve of the buffer tube, a modulus is 5 to 50 kgf/mm2 in a linear region with an elongation less than 1% and a tan δ is less than 0.5 at 30° C. The buffer tube of the optical fiber unit may be very usefully applied to an optical cable because it may be easily cut out to ensure easy contact and gives excellent elasticity without being crushed by lateral pressure.
摘要翻译:公开了一种光纤单元,其中至少1芯光纤安装在缓冲管中并由缓冲管保护,以及包括光纤单元的光缆。 缓冲管由混合物制成,其包括包含选自聚烯烃聚合物,丁腈橡胶及其混合物的树脂和增塑聚氯乙烯的复合树脂; 和无机添加剂,其中在缓冲管的应力 - 应变曲线中,在伸长率小于1%的线性区域中的模量为5至50kgf / mm 2,并且tanδ 在30℃下小于0.5。光纤单元的缓冲管可以非常有用地应用于光缆,因为它可以容易地切割以确保容易的接触并且提供优异的弹性而不被横向压力压碎。