Abstract: According to an exemplary embodiment of the present invention, provided is a latex composition for dip molding, which includes a copolymer latex formed by polymerizing an isoprene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein a dip-molded article made of the latex composition for dip molding exhibits a durability test result of 45 minutes or more.

Abstract: According to an exemplary embodiment of the present invention, provided is a latex composition for dip molding, which includes a copolymer latex formed by polymerizing an isoprene monomer, an ethylenically unsaturated nitrile monomer, and an ethylenically unsaturated acid monomer, wherein a dip-molded article made of the latex composition for dip molding exhibits a durability test result of 45 minutes or more.

Abstract: Disclosed are a method for bending a self-regulating cable having a function of maintaining a predetermined temperature by applied electric power, in which the self-regulating cable is arranged in zigzags by easily bending the self-regulating cable, and a heating mat for preventing overheating using the same. A heating mat comprises: a heat generating means for maintaining a predetermined temperature with applied electric power; a control unit electrically connected to the heat generating means, for regulating the electric power supplied to the heat generating means; and an exterior material surrounding the heat generating means. The method comprises: setting a bent portion of the self-regulating cable; exposing the semi-conductive polymer by removing a portion of the insulation film, which corresponds to the bent portion; exposing a pair of wires by removing the exposed semi-conductor polymer; and bending portion of the pair of wires, which correspond to the exposed bent portion.

Abstract: A portable wireless communication apparatus includes a body and a pen/antenna device. The body includes a circuit board disposed therein, a recess defined therein, a conductive resilient element disposed in the recess and connected to the circuit board and a touch panel provided on the body. The pen/antenna device includes a pen for use on the touch pane to control the portable wireless communication apparatus and a telescopic antenna connected to the pen. The telescopic antenna is connected to the circuit board through the conductive resilient element when a portion of the telescopic antenna is disposed in the recess.

Abstract: A portable wireless communication apparatus includes a body and a pen/antenna device. The body includes a circuit board disposed therein, a recess defined therein, a conductive resilient element disposed in the recess and connected to the circuit board and a touch panel provided on the body. The pen/antenna device includes a pen for use on the touch pane to control the portable wireless communication apparatus and a telescopic antenna connected to the pen. The telescopic antenna is connected to the circuit board through the conductive resilient element when a portion of the telescopic antenna is disposed in the recess.

Abstract: Disclosed is a plane heating element and a manufacturing method thereof, particularly the plane heating element without external electromagnetic waves and a manufacturing method thereof, wherein magnetic fields formed by the currents that flow through heat generation lines and an input terminal are eliminated to thus get rid of electromagnetic frequencies(EMF) harmful to the human body.

Abstract: A plane heating element is provided which features reduced external electromagnetic waves. The plane heating element includes an upper input terminal and a lower input terminal in which upper wires and lower wires are spaced apart at a predetermined interval, and the currents through the respective wires flow oppositely to each other. First heat generation wires are connected to the upper input terminal at predetermined spaced intervals and have the same directed current flow as that of the upper input terminal. Second heat generation wires are connected to the upper input terminal at spaced intervals and have the oppositely directed current flow to that of the first heat generation wires.

Abstract: The object of the present invention is to provide an polymerization method for carboxylated styrene-butadiene latex using paper coating with the gel content having 50%.about.90% by controlling the reaction with the sole use of tertiary-dodecyl mercaptan in the high temperature polymerization method with following steps comprising;i) reacting and batch charged polymerizing 10.about.20 wt % of total styrene and butadiene monomers with small quantity of acid monomers, emulsifier, initiator and reducing agent at about 60.degree. C. in initial polymerization step; andii) reacting and continuously charged polymerizing 80.about.90 wt % of total styrene and butadiene monomers with small quantity of acid monomers, emulsifier and tertiary dodecyl mercaptan as chain transfer agent with increasing the polymerization temperature step by step from 70.degree. C., 75.degree. C. to 80.degree. C. in increment polymerization step.