Abstract: Provided are a meter reading device, an attachment member, and a remote meter reading system. The meter reading device includes a recognition unit configured to recognize a measurement value measured by a meter device from an image picked up by a camera and generate numerical data indicating the recognized measurement value, a transmission unit configured to transmit the numerical data generated by the recognition unit to a storage device installed on a network, a mirror arranged so as to be opposed to a display surface at a given angle, and other components. The attachment member enables attachment of the meter reading device to the meter device. The remote meter reading system allows the measurement value displayed on an existing meter device to be checked at a remote location.

Abstract: The present invention provides a structure of car lamp comprising a light-guiding element and a light-emitting device. The width of a first body shrinks gradually from a first light-emergence plane to a first light-incidence plane and forming a first side oblique plane and a second side oblique plane. A second body of the light-guiding element includes a second light-incidence plane and a second light-emergence plane. The second light-incidence plane is connected to the first light-emergence plane. The first body includes side oblique planes and oblique planes; the second body includes a third side oblique plane, a reflective plane, and oblique planes. By using the side oblique planes, the reflective planes, and the oblique planes to reflect part of incident light out of the light-guiding element, the reduction of the overall luminous efficacy of the structure of car lamp can be avoided.

Abstract: The present invention provides a structure of car lamp comprising a light-guiding element and a light-emitting device. The width of a first body shrinks gradually from a first light-emergence plane to a first light-incidence plane and forming a first side oblique plane and a second side oblique plane. A second body of the light-guiding element includes a second light-incidence plane and a second light-emergence plane. The second light-incidence plane is connected to the first light-emergence plane. The first body includes side oblique planes and oblique planes; the second body includes a third side oblique plane, a reflective plane, and oblique planes. By using the side oblique planes, the reflective planes, and the oblique planes to reflect part of incident light out of the light-guiding element, the reduction of the overall luminous efficacy of the structure of car lamp can be avoided.

Abstract: The present disclosure relates to a composition for preparing a vinyl chloride-based polymer and a method of preparing a vinyl chloride-based polymer using the same, and provides the composition giving excellent productivity for preparing a vinyl chloride-based polymer includes while maintaining excellent foaming and viscosity properties of a plastisol including the prepared vinyl chloride-based polymer, by including a pH regulator composed of a carbonate-based metal salt, and a transition metal catalyst in the composition, and controlling an amount of the transition metal catalyst, and controlling an amount of a reducing agent such that a trace amount or none of the reducing agent is included, and the method of preparing a vinyl chloride-based polymer using the same.

Abstract: The present disclosure provides a method for preparing a vinyl chloride-based polymer, the method including a step of injecting an ionizable normal salt and polymerizing a vinyl chloride monomer in the presence of one or more emulsifiers and a polymerization initiator, wherein the ionizable normal salt includes a carbonate metal salt or a sulfite metal salt, and the ionizable normal salt is continuously injected in an amount of 70 to 1200 ppm based on the total weight of the vinyl chloride monomer when a polymerization conversion rate is in a range of 0% to 20%. The method capable of preparing a vinyl chloride-based polymer suitable as an eco-friendly material, while not affecting the rate of polymerization reaction and decreasing the generation amount of total volatile organic compounds by controlling the injection time, injection amount and kind of the ionizable normal salt, is provided.

Abstract: The present disclosure relates to a vinyl chloride-based polymer having a pH of 7 to 11 and satisfying the number of olefin-type defects (NO) of 1.5 or less and the number of chloro-type defects (NC) of 11.0 or less. The vinyl chloride-based polymer contains reduced defects in the entire polymer and may suppress dehydrochlorination reaction or crosslinking reaction during processing, and effects of preventing discoloration phenomenon, improving heat resistance and preventing the deterioration of physical properties may be expected.

Abstract: The present disclosure provides a method of preparing a vinyl chloride-based polymer, and the method provides excellent productivity while having reduced amount of a volatile organic compound generated so as to provide the vinyl chloride-based polymer suitable for an eco-friendly material, and improved foaming and viscosity properties of a plastisol including the prepared polymer, by adding a carbonate-based metal salt and a transition metal catalyst together, and controlling input time and amount of the transition metal catalyst.

Abstract: Provided are a meter reading device, an attachment member, and a remote meter reading system. The meter reading device includes a recognition unit configured to recognize a measurement value measured by a meter device from an image picked up by a camera and generate numerical data indicating the recognized measurement value, a transmission unit configured to transmit the numerical data generated by the recognition unit to a storage device installed on a network, a mirror arranged so as to be opposed to a display surface at a given angle, and other components. The attachment member enables attachment of the meter reading device to the meter device. The remote meter reading system allows the measurement value displayed on an existing meter device to be checked at a remote location.

Abstract: A method for producing a vinyl chloride-based polymer, wherein the vinyl chloride-based polymer is produced by sequentially adding a first emulsifier and a second emulsifier, which are different from each other, during polymerization and using a succinate compound as a first emulsifier. The method provides improved processability by achieving low-viscosity properties when plastisol is mixed using the produced polymer, and improved fogging properties by suppressing generation of volatile organic compounds.

Abstract: The present invention provides an ignition coil which can be reduced in weight and cost while retaining the performance of conventional ignition coils. The objective of the present invention is to provide an ignition coil which can be manufactured using conventional processes, such that costs due to process switching are not incurred. The ignition coil is characterized by comprising: a pipe-shaped spool; and a wire wound on the outer circumference of the spool, wherein the wire is formed extending in one direction, and the central portion of a cross-section perpendicular to the direction of extension is formed of aluminum, while the outer surface of the cross-section is formed of copper.

Abstract: The present disclosure provides a method of preparing a vinyl chloride-based polymer, and the method provides excellent productivity while having reduced amount of a volatile organic compound generated so as to provide the vinyl chloride-based polymer suitable for an eco-friendly material, and improved foaming and viscosity properties of a plastisol including the prepared polymer, by adding a carbonate-based metal salt and a transition metal catalyst together, and controlling input time and amount of the transition metal catalyst.

Abstract: The present disclosure relates to a composition for preparing a vinyl chloride-based polymer and a method of preparing a vinyl chloride-based polymer using the same, and provides the composition giving excellent productivity for preparing a vinyl chloride-based polymer includes while maintaining excellent foaming and viscosity properties of a plastisol including the prepared vinyl chloride-based polymer, by including a pH regulator composed of a carbonate-based metal salt, and a transition metal catalyst in the composition, and controlling an amount of the transition metal catalyst, and controlling an amount of a reducing agent such that a trace amount or none of the reducing agent is included, and the method of preparing a vinyl chloride-based polymer using the same.

Abstract: The present disclosure provides a method for preparing a vinyl chloride-based polymer, the method including a step of injecting an ionizable normal salt and polymerizing a vinyl chloride monomer in the presence of one or more emulsifiers and a polymerization initiator, wherein the ionizable normal salt includes a carbonate metal salt or a sulfite metal salt, and the ionizable normal salt is continuously injected in an amount of 70 to 1200 ppm based on the total weight of the vinyl chloride monomer when a polymerization conversion rate is in a range of 0% to 20%. The method capable of preparing a vinyl chloride-based polymer suitable as an eco-friendly material, while not affecting the rate of polymerization reaction and decreasing the generation amount of total volatile organic compounds by controlling the injection time, injection amount and kind of the ionizable normal salt, is provided.

Abstract: The present invention relates to a method for preparing vinyl chloride-based polymers, which is provided to improve polymerization productivity. An initial stage polymerization temperature is raised, the temperature is then lowered at a certain cooling rate from the time when an initial target polymerization temperature until a polymerization reaction is completed, and thus, a vinyl chloride-based polymer with excellent physical properties may be prepared while reducing a polymerization time and improving polymerization productivity even without additionally installing a polymerization reactor and heat removal equipment.

Abstract: The present disclosure relates to a vinyl chloride-based polymer having a pH of 7 to 11 and satisfying the number of olefin-type defects (NO) of 1.5 or less and the number of chloro-type defects (NC) of 11.0 or less. The vinyl chloride-based polymer contains reduced defects in the entire polymer and may suppress dehydrochlorination reaction or crosslinking reaction during processing, and effects of preventing discoloration phenomenon, improving heat resistance and preventing the deterioration of physical properties may be expected.

Abstract: The present invention provides a method for preparing a vinyl chloride-based polymer and a vinyl chloride-based polymer prepared thereby, the method comprising a step for performing suspension polymerization of a monomer for preparing a vinyl chloride-based polymer in the presence of a polymerization initiator, a dispersant, and water soluble cellulose ether, wherein the dispersant includes a mixture of two or more kinds of polyvinyl alcohol having different degrees of saponification, and the mole average degree of saponification of the polyvinyl mixture is from 76 mol % to 80 mol %, and the water soluble cellulose ether has a gel point of 60° C. to 90° C. and is added before the initiation of polymerization or at a time in which the polymerization conversion rate is 70% or less.

Abstract: The present invention relates to a method for preparing vinyl chloride-based polymers, which is provided to improve polymerization productivity. An initial stage polymerization temperature is raised, the temperature is then lowered at a certain cooling rate from the time when an initial target polymerization temperature until a polymerization reaction is completed, and thus, a vinyl chloride-based polymer with excellent physical properties may be prepared while reducing a polymerization time and improving polymerization productivity even without additionally installing a polymerization reactor and heat removal equipment.

Abstract: The present invention relates to a method of preparing a vinyl chloride-based polymer, and more specifically, to a method comprising the steps of, (S1) preparing a mixture in which a first protective colloid auxiliary agent and a chain regulator are mixed; (S2) preparing a second protective colloid auxiliary agent including the chain regulator activated by stirring the mixture prepared in step (S1); and (S3) performing polymerization by adding a vinyl chloride-based monomer and a polymerization initiator in the presence of the second protective colloid auxiliary agent prepared in step (S2).