baber/WOPTO huggingface dataset:
Patent KR-19990064522-A (KR)
Title: 전조 등불빛 차단장치
IPC: B60Q1/14
Filed: 1999-03-27
Abstract: 본 발명은 야간 운전중 상대 차량의 전조등 불빛을 차단하여 운전자의 넓은시야를 확보시킬 수 있는 전조등 불빛 차단장치에 관한 것으로서, 야간 운전시 운전자에게 미치는 상대 차량의 전조등 불빛을 최대한 저감시킴으로서 안전한 야간운전을 할 수 있도록 하는 전조등 불빛 차단장치를 제공하는 것을 과제로 한다. 
     본 발명의 전조등 불빛 차단장치는, 자동차(1)의 앞유리(2) 상측부에 하향의빛을 조사하는 전등(3)을 설치하여 이 전등(3)에서 조사되는 빛의 광커텐 작용에 의해 상대차량의 전조등 불빛을 차단하도록 된 것을 특징으로 한다. 
     본 발명의 또다른 전조등 불빛 차단장치는, 자동차(1)의 앞유리(2) 하측부에상향의 빛을 조사하는 전등(3)을 설치하여 이 전등(3)에서 조사되는 빛의 광커텐 작용에 의해 상대차량의 전조등 불빛을 차단하도록 된 것을 특징으로 한다. 
     본 발명의 또다른 전조등 불빛 차단장치는, 자동차(1)의 보넷(5) 위에 상향의 빛을 조사하는 전등(3)을 설치하여 이 전등(3)에서 조사되는 빛의 광커텐 작용에 의해 상대차량의 전조등 불빛을 차단하도록 된 것을 특징으로 한다. 
     본 발명의 또다른 전조등 불빛 차단장치는, 자동차의 범버(6) 위에 상향의 빛을 조사하는 전등(3)을 설치하여 이 전등(3)에서 조사되는 빛의 광커텐 작용에 의해 상대 차량의 전조등 불빛을 차단하도록 된 것을 특징으로 한다. 
     본 발명의 또다른 전조등 불빛 차단장치는, 자동차의 전조등(7) 하측에 전조등(7)  불빛의  일부를  상측으로  반사시키기 위한  반사경(8)을  설치하여,  이 반사경(8)에 의해 상측으로 조사되는 빛의 광커텐 작용에 의해 상대차량의 전조등불빛을 차단하도록 된 것을 특징으로 한다. 
     본발명의 또다른 전조등 불빛 차단장치는 자동차의 전조등 내부에 형성되는반사경의 각도를 약간의 상향으로 형성시켜 전조등내부의 불빗을 약간의 상향으로조사 되도록 되는 것을 특징으로 한다.
Patent KR-20000061976-A (KR)
Inventor: LEE CHANG JIN
IPC: A61K8/00
Filed: 1999-03-29
Abstract: PURPOSE: A perfume containing herbal materials is provided, which promotes physical health and makes users more resistant and immune to bacteria by the scent of the herbs. CONSTITUTION: The perfume(1) containing herbs with a unique scent having a remedical value is produced by extracting main ingredients having a remedial value using the herb scent from the herbal materials and making the herb extract into a perfume product that is very helpful to maintain physical health.
Patent KR-20000066073-A (KR)
Inventor: JUN BYEONG GUN
IPC: H04B1/40
Filed: 1999-04-13
Abstract: PURPOSE: A device for generating a power of a portable information terminal is provided to sequentially supply power to modules and reduce an in-rush current when a sleep mode is switched into an active mode, so that a battery usage time may be increased. CONSTITUTION: If a sleep mode is switched into an active mode, a power switch is pushed in the sleep mode and a system power is switched on. Consequently, a micro computer(410) generates first-third control signals(412,416,418) in a high status. A first switch circuit(430), a second direct current/converting circuit(450) and a third direct current/converting circuit(460) are consequently switched on. The first control signal is varied according to a status of the power switch. The micro computer delays the first control signal through a delaying circuit(420), to switch the sleep mode into the active mode and turn on the first switch circuit. The first direct current/converting circuit generates 3.3V. The 3.3V, supplies to a ROM(340) and inputted to a power detection circuit(470). A voltage detection circuit(470) switches a voltage to 3.0 Von the second switch circuit while the 3.3V is supplied to each device.
Patent KR-19990083264-A (KR)
Title: Tyre with high transverse curvature coefficient, in particuar for a two-wheeled vehicle
IPC: B60C11/00
Filed: 1999-04-16
Abstract: A tyre for two-wheeled vehicles is described, said tyre having a transverse curvature coefficient with a value of not less than 0.15, comprising a torus-shaped carcass having structural means which allow improvements in the handling of the vehicle, while leaving unchanged the other performance characteristics, in particular the comfort. These structural means consist in at least one ply of a rubberized fabric provided with textile cords having a count of between 420/2 and 840/2 dtex and a modulus of elasticity of between 100,000 MPa/cm and 200,000 MPa/cm. Preferably the carcass comprises a pair of these rubberized fabric plies reinforced with PEN cords. <IMAGE>
Patent KR-19990088056-A (KR)
Title: 통상적으로안착되어있지않는흡입밸브
IPC: F04B39/10
Filed: 1999-05-04
Abstract: 흡입 밸브는, 그 비응력 상태에서, 안착을 달성하기 위해서 그 고유의 스프링력에 대항하여 변형되도록 밸브 시트로부터 이격되어 있다.  이 변형으로 인한 스프링력은 흡입 행정에서 보다 빨리 개방되도록 흡입 밸브에 개방 바이어스를 제공하고, 안착면과 밸브 사이의 오일의 존재로 인한 부착의 영향을 상쇄시킨다.
Patent KR-19990064778-A (KR)
Filed: 1999-05-04
Abstract: 본 발명은 스테인레스나 강판등을 피용접모재로하여 전기저항 용접을 하는데 주로 사용하는 3상저항 AC스포트 용접기에 관한 것이다. 
     종래의 전기 저항 스포트용접기는 거의가 단상 AC저항용접기도 되어 있어 용접에 필요한 높은 열압을 얻을 수 없어서 양질의 용접을 기대할 수 없을 뿐만 아니라 많은 스파크(불꽃)현상이 발생하여 화재를 유발하거나 용접모재의 손실 및 용접작업자가 화상을 입는등의 폐단이 있었던 것이다. 
     본 발명은 이상의 문제점을 해결하고자 발명한 것으로 이의 발명요지는 트랜스포머에 결선된 3조의 1차코일과 1조의 2차코일을 동일철심에 감아서 1차코일을 각상에 SCR을 삽입하여 Δ(Delea)접속하고 이것을 3상전원에 접속하며 이의 기본적인 회로의 동작에 있어서는 트랜스포머의 1차측으로부터 3상전원을 입력받아 SCR을 A1→B1→C1→C2→A2→B2의 순서대로 점호시켜서 2차측 트랜스포머에서는 상하측 3파형 출력전압을 얻게 하고, A1→B1→C1→A1→B1→C1→C2→A2→B2→C2→A2→B2의 순서대로 점호 시켜서 상하측 6파형 출력전압을 얻게 하며 A1→B1→C1→A1→B1→C1→A1→B1→C1→C2→A2→B2→C2→A2→B2→C2→A2→B2의 순서 대로 점호 시켜서 상하측 9파형 또는 그이상 파형의 출력전압을 얻음을 특징으로하고 이를 퍼지제어기 시스템에 적용하여 전원부하 및 용접모재의 변동에 따른 용접전류가 항상 일정하게 유지 되도록 함과 동시 용접전류 용접사이클, pulation사이클, 반복사이클등의 용접기의 모든 기능상태로 LCD화면에 표시 되게 하므로서 능률적이고 양질의 용접   조건과 안전성 있는 용접작업을 시행할 수 있게 한 것이다.
Patent KR-19990064802-A (KR)
Title: 레이온과 면 혼합 직물을 마(麻)직물의 질감을 갖도록 처리하는 가공방법
Filed: 1999-05-11
Abstract: 본 발명은 레이온(Rayon)과 면(Cotton) 혼합 직물을 마(麻)직물의 질감을 갖도록 처리하는 가공방법에 관한 것이다. 
     모시나 마직으로 된 천연재료는 수공이 많이들고 제조가 까다로운 관계로 과거 자급자족 시대에는 스스로 재배, 가공하여 옷을 만들어 입었으나 현대 사회에서는 이와 같이 힘들고 까다로운 작업을 기피하기 때문에 공급이 수요에 따르지 못하게 되어 가격이 고가로 될 수밖에 없어 일반 서민들에게 널리 보급되기에는 미흡 한 아쉬움이 있었던 것이다. 
     본 발명은 레이온과 면섬유로 직조된 원단(합연, 혼방, 교직 등)에 머서가공(Mercerization), 일명; 실켓가공(Silket)을 실시하여 면 부분은 실켓가공의 효과를 부가하고, 레이온 부분은 경화(딱딱하게) 상태로 변화시켜 마치 마(麻)와 같은 질감을 갖도록 하므로써 기존 천연 모시메리의 대체 직물로 저가 대량생산이 가능토록 하여 국내수요는 물론 새로운 장르의 직물로써 해외로의 수출이 가능토록 한 것이다.
Patent KR-20000073781-A (KR)
Inventor: KANG SAM JUNG
IPC: H02K53/00
Filed: 1999-05-14
Abstract: PURPOSE: A capacitive induction generator is provided to make the direction of electric line of force become 90 deg. so as for electricity to flow into an external circuit without electric resistance. CONSTITUTION: In a capacitive induction generator, a plurality of electric magnet and generating magnet groups are formed so as to make a rate of the pole number of the electric magnet to the generating magnet become 1 to 2. The induction generator is constructed by forming the electric magnet with a multiple system so that electricity flows into an external circuit without electric resistance.
Patent KR-20000074244-A (KR)
Inventor: SHIN HWA CHEOL
IPC: H04N7/08
Filed: 1999-05-19
Abstract: PURPOSE: An apparatus and method of displaying a closed captioning data of a wide digital TV is provided to divide a TV screen into two parts, and display an image signal on one part and a closed captioning data on the other part, thereby simultaneously providing two services to a user. CONSTITUTION: An apparatus for displaying a closed captioning data of a wide digital TV comprises a micro-computer for transmitting a digital MPEG compressed image/sound transport stream through a tuner and an analog/digital converter or generating a graphic image according to an order by a user, a MPEG audio/video decoder for restoring the MPEG compressed image/sound transport stream and then outputting an information composed with the graphic image and having a displaying unit, an encoder for encoding an image information according to a broadcasting way, and a digital/analog converter for converting a sound information into an analog sound signal and then outputting the signal. In the apparatus, the displaying unit comprises an image superpositioning portion(301) for superpositioning a closed captioning data on the restored digital compressed image data, a 4:3 format converter(302) for converting an image of 16:9 ratio into an image of 4:3 ratio, a first image mixer(303) for displaying the image of 4:3 ratio on an entire screen and composing the closed captioning data image to simultaneously display the image and the closed captioning data, and a second image mixer(304) for dividing the entire screen of the TV into two parts and displaying the image at one part and the closed captioning data at the other part.
Patent KR-20000075016-A (KR)
Inventor: PARK NO GEON
IPC: H01M2/12
Filed: 1999-05-27
Abstract: PURPOSE: A sealing structure of a cylindrical battery is provided to improve the sealing effect of the cylindrical battery by shielding the route of a lachrymal solution. CONSTITUTION: A sealing structure of a cylindrical battery comprises a winding device(14) inserted in a metal case(12). A ring(16) is formed at an upper end of a winding device(140. A safety vent(18) is formed on the upper portion of the ring(16). A polyethylene cover(22) is formed on an upper portion of the safety vent(18). A top cap(28) is mounted on the polyethylene cover(22). A gasket(30) is inserted between peripheries of the safety vent(18), the top cap(28), the polyethylene cover(22), a ring plate(20) and the metal case(12). The ring plate(20) is formed on the safety vent(18). An aluminum foil is disposed below the ring plate(20).
Patent KR-20000075194-A (KR)
Inventor: YUN SUK NAM
IPC: C04B26/06
Filed: 1999-05-29
Abstract: PURPOSE: A self-leveled mortar by a slurry movement is provided, which gives a flat surface, fast curing without crack, and excellent heat conduction and refractoriness. CONSTITUTION: The self-leveled mortar composition contains 100pts.wt. of loess, 120-180pts.wt. of gypsum, 200-250pts.wt. of silica sand, 10-40pts.wt. of admixture comprising acrylic polymer, antifoaming agent, delaying agent and fluidizing agent, and 20-50pts.wt. of additive comprising fresh and CaCO3.
Patent KR-20010010380-A (KR)
Inventor: JANG HYEONG SU
IPC: A47J27/08
Filed: 1999-07-20
Abstract: PURPOSE: Safety valve device of pressure cooker prevents safety accident in using by composing not to fit sediment like foreign material in safety valve device, reduces much time and man power in manufacturing process and assembly with simple composition. CONSTITUTION: Safety valve device of pressure cooker is characterized by composing reentering part formed with axis hole and piercing hole(12) in cover(6) one side; installing by inserting supporting bar(20) connected in switching plate(14) bottom in the axis hole; fixing by locking with spring(22) after inserting spring(22) in outer face of supporting bar(20); inserting switching plate(14) on reentering part of cover(6) by lock-fixing with nut(26) after inserting spring(22) and washer(24) on supporting bar(20); having airtight device like rubber packing(18) or O-ring between switching plate(14) and reentering part to increase airtight character.
Patent KR-20010010461-A (KR)
Inventor: SONG YEONG BOK
IPC: F15B7/00
Filed: 1999-07-20
Abstract: PURPOSE: A direction converting valve is provided to save space while reducing the number of components by integrating an anti-drop valve to the direction converting valve. CONSTITUTION: Oil from a pump(P) is inputted to a direction converting valve unit(3) through a check valve(15). If a pilot pressure is applied through a port(a), oil is inputted into a small chamber of a cylinder(5) through a left line. If not so, oil is inputted into a logic valve() through a right line and the logic valve is opened for inputting the oil to the small chamber. An upper Part of the logic valve is connected with a control valve(7). If the pilot pressure is applied to the control valve, the control valve is moved for closing the logic valve. Herein, an anti-drop valve unit composed of the logic/control valves is integrated with the direction converting valve unit.
Patent KR-20010018274-A (KR)
Inventor: HONG SUK BONG
IPC: C01B39/02
Filed: 1999-08-18
Abstract: PURPOSE: A gallosilicate molecular sieve(1.0Ga2O3 : 2.0-10.0SiO2) having porosity and crystallinity is provided to exchange +1 or +2 ions selectively and separate gases from mixed gas. The gallosilicate molecular sieve has reversible vapor(H2O) adsorptivity(≧7.0wt.%) and high thermal stability(≧500deg.C) and homogeneous pore(≧3angstrom). CONSTITUTION: The gallosilicate molecular sieve is prepared by the following steps of: mixing Ga2O3 with alkali(+1) hydroxide solution(NaOH, KOH) or mixture thereof in a molar ratio of 1:1-10(in calculating as M2O); dissolving at 100±10deg.C; adding 2-20M(based on 1M of Ga2O3) of colloidal silica sol or amorphous silica slowly for 5-10mins; stirring to produce the reactant expressed as xM2O : Ga2O3 : ySiO2 : zH2O, where x=1-10M, y=2-20M and z=50-250M; hydrothermal reacting at 100-200deg.C for 1-21days.
Patent KR-20000017497-A (KR)
Inventor: SAKAMOTO KENSEI
IPC: B09B3/00
Filed: 1999-08-24
Abstract: PURPOSE: An organism processor is provided to easily remove a filter without putting a hand inside a processing tub. CONSTITUTION: The processor is composed of: a processing tub(11) that processes organism such as food waste; a body case(10) containing the processing tub; a blower(60) discharging waste gas from the processing tub to the outside; a filter(18) installed to removable from the outside of the body case, in the discharging channel of the processing tub; and a scraper(18e) falling the attaching matter of a filter face into the processing tub by scratching to remove when taking the filter out, contacting slipperily on the side processing tub face. Therefore, the device prevents food waste from outflowing from the exhaust pipe.
Patent KR-19990083950-A (KR)
Title: 박막형 적층체로된 다색 발광램프와 그 제조방법
Filed: 1999-09-01
Abstract: 발광물질로 박막적층형 발광체를 제조함에 있어서 표면투명층, 양극 투명도전판, 도선, 발색발광층, 절연층, 음극투명도전판, 도선, 반사필림, 카본층의 순으로 적층하되 적층방법을 실크인쇄에 의한 인쇄방법 또는 증착방법으로 박막층을 형성한 적층체로서 이 적층체의 측면과 밑면을 밀봉케이스 내에 구성설치시킴과 동시에 도선들을 플러그에 연결시켜서 된 박막적층형으로된 다색 발광램프 및 그 제조방법에 관한 것이다.
Patent KR-20010026795-A (KR)
Inventor: KIM JONG HEUM
IPC: A47L15/14
Filed: 1999-09-08
Abstract: PURPOSE: A direct washing system in a dishwasher is provided to improve the injection of the cleaning water and to wash efficiently with supplying cleaning water to washing and rinse nozzles directly. CONSTITUTION: A motor pump(12) is fixed in the side of a body(10). A horizontal pipe(14) is mounted in the end of a vertical coupling pipe(13) connected with the motor pump, and connected with a lower wash and rinse nozzle(15). An L-shaped extension pipe(16) having a horizontal extension section(18) is installed in the upper part of the coupling pipe, and an upper wash and rinse nozzle(17) is connected with the extension section. An automatic dishwasher connects the motor pump and the coupling pipe with the extension pipe and the horizontal pipe. The automatic dishwasher injects and discharges the washing water at regular pressure, and washes up the dishes.
Patent KR-20010028943-A (KR)
Inventor: JO YOUNG IL
IPC: A61K8/19
Filed: 1999-09-28
Abstract: PURPOSE: Provided is cream composition by mixing cream using cosmetic salts and natural spices, therefore it can be used for cosmetics and therapeutics by accelerating metabolism, and oxidizing alien substance and waste material. CONSTITUTION: The cream consists of 65-75wt.% of cosmetic salts, 3-5wt.% of germanium, 8-12wt.% of citric acid, 8-12wt.% of oligosaccharides, 3-5wt.% of chitosan, 1-2wt.% of herb essence.
Patent KR-20000075408-A (KR)
Inventor: KANG SAE HEUNG
IPC: G08B5/32
Filed: 1999-10-05
Abstract: PURPOSE: A method for outputting messages and alarms is provided to display a selected message among transmitted predetermined messages and prestored messages to inform general people of the selected message, so as to output a predetermined alarming sound according to a user selection to exactly and quickly inform the general people of an urgent message or various announcing messages. CONSTITUTION: A predetermined message transmitted from a police station is stored. An emergent mode or a general mode is selectively set up according to an inputted key signal, and an alarm corresponding to the emergent mode or the general mode is set up. If a present mode is the emergent mode, an alarm of the emergent mode is outputted. If the present mode is the general mode, an alarm of the general mode is outputted. When the predetermined message is stored, the message is stored as removing pre-stored messages with a first-in-first-out(FIFO) system. When the alarms of the emergent/the general modes are outputted, the inputted key signal is firstly decided. If the key signal is a directional key, a cursor is moved according to the directional key. If the inputted key signal is an identifying key signal, an item indicated by a present cursor is decided. A setup routine of the decided item is performed to set up a message, a light, or an alarming sound according to the emergent mode or the general mode.
Patent KR-20010038012-A (KR)
Inventor: HAN MYEONG SU
IPC: H01L31/101
Filed: 1999-10-21
Abstract: PURPOSE: An infrared detector and its fabrication method are to improve a degree of sensing an infrared rays by minimizing a thermal noise of an infrared rays detecting unit and to improve a longtime operational reliability. CONSTITUTION: A ceramic package(10) has a top opening part and many projecting outer lead at its outside bottom surface. A thermo electric cooler(70) is disposed at a center of inside bottom surface of the ceramic package. An infrared rays detecting unit(20) is flip-chip bonded to a signal processing IC(30). The signal processing IC die is bonded to the thermo electric cooler by an adhesive(40). A conductive bonding wire(50) electrically connects the bonding pads of the IC to a metal pad(11) which accomplishes a wire bonding of the ceramic package. An infrared rays window(60) is bonded to topside part of the ceramic package to seal the top opening part. A heat sink(80) is bonded to outside surface bottom surface of the ceramic package to maintain a constant temperature of the ceramic package. A sealant(90) seals a through hole(15) of the ceramic package to maintain a state that an inner space of the ceramic package is filled with an inert gas.
Patent KR-20010038533-A (KR)
Inventor: JUNG JIN UK
IPC: G01M17/02
Filed: 1999-10-26
Abstract: PURPOSE: An apparatus for testing dual tires is provided to test two tires such as twin tires for a truck or a bus at the same time, thereby increase test productivity of the test apparatus. CONSTITUTION: An apparatus for testing dual tires includes a load shaft(3) formed in a square shape having one open side and holding two tires in a rim mounted on shaft load parts(1,1') of the ends of both shafts for applying load, a partition(4) installed in the middle of the load shaft, a wide load wheel traveling the tires in state of being contacted with the tires, and a hydro actuator(6) connected with the load shaft to apply load to the load shaft.
Patent KR-20010044885-A (KR)
Title: Gear tooth sensor for car
Inventor: KWAK HO BIN
IPC: G01B7/30
Filed: 1999-11-01
Abstract: PURPOSE: A gear tooth sensor for a vehicle is provided to improve mechanical strength and durability by inserting a magnet holder in a magnet holder space part, inserting a bobbin assembly into a cap member, connecting a connection wire and filling with epoxy. CONSTITUTION: A gear tooth sensor for the vehicle includes a bobbin having a terminal(11) buried in a side, a magnet holder space part(14) formed at the other side and a guide hole(18), a PCB connected with the guide hole of the bobbin and having a guide hole for inserting a guide pin(13) and various elements attached on the bottom, a magnet holder having a hole IC inside and an IC lead extending to the opposite direction of the hole IC, a cap member is connected to the bobbin assembly, a connection wire connected to the end of the terminal, epoxy resin filled in the cap member and a flange having a bush. The upper portion of the cap member and a portion of the connection wire are overmolded.
Patent KR-20000035177-A (KR)
Inventor: SEI CHONG-SHUAN
IPC: B01J19/24
Filed: 1999-11-03
Abstract: PURPOSE: An apparatus and a method are provided, for preparing methacrylic acid and methyl methacrylate in high yield. CONSTITUTION: Methacrylic acid or methyl methacrylate is prepared by hydrolyzing acetonecyanohydrin to obtain a mixture containing alpha-hydroxyisobutyramide, alpha-sulfatoisobutyramide, 2-methacrylamide and methacrylic acid; heat converting the mixture in the cracker reactor containing the plug floor heat conversion apparatus to produce a cracker reaction mixture containing 2-methacrylamide and methacryic acid; reacting the cracker reaction mixture with methanol and water in at least one reactor to produce methacrylic acid or methyl methacrylate; and optionally phase separating the mixture into an organic flow containing methacrylic acid or methyl methacrylate and an inorganic flow containing sulfuric acid. The heat conversion apparatus (1) contains at least one linear pipe containing the device for maintaining plug flow, the pipe contains at least one turn (4), the turn (4) contains at least Cheng rotation vane.
Patent KR-20000007011-A (KR)
Inventor: LEE JONG HOON
IPC: H04L12/28
Filed: 1999-11-19
Abstract: PURPOSE: An internet phone is provided to call only by an internet line by using a mobile phone service network previously installed, and not by passing a phone line by a mobile phone in a computer. CONSTITUTION: The internet phone contains; a switching server to store the IP address of the personal computers(214) allocated a registration number by registering in a service system, and to check the on/off state of the personal computer; a personal computer server to be allocated an inherent IP address, to installed at least more than one or plural base stations to each base station to communicate with a mobile phone, to convert a CDMA data to an international standard protocol data, and to transfer the transmitted international standard protocol data to the base station by converting to the audio or the CDMA data.
Patent KR-20010054250-A (KR)
Inventor: KIM YEONG SEOK
IPC: C08J5/18
Filed: 1999-12-04
Abstract: PURPOSE: Provided is a biaxially oriented film comprising a polymer containing a methaxylene group and an aliphatic polyamide, which is excellent in an oxygen-screening ability and is used for packing fish, meat, and processed foods thereof. CONSTITUTION: The biaxially oriented film is produced by extruding 20-60wt.% of the polymer containing the methaxylene group and 40-80wt.% of the aliphatic polyamide at a speed of 20-90sec¬-1. The polymer containing the methaxylene group is prepared by polymerizing a xylene diamine, having methaxylene diamine as a main component, and at least one aliphatic dicarboxylate. And the aliphatic polyamide has a melting point of more than 160deg.C and a glass transition temperature of less than 60deg.C and the difference of melting point between the polymer and the aliphatic polyamide is less than 50deg.C.
Patent KR-20010056683-A (KR)
Inventor: AHN DAE EOP
IPC: C07C45/67
Filed: 1999-12-16
Abstract: PURPOSE: A polyether ketone is provided, which has a high glass transition temperature of more than 160 deg.C and is homogeneously molten and blended with polyvinylchloride within a short period of time even at a relatively low temperature of 180-210 deg.C. And a heatproof polyvinylchloride blend containing the same is also provided, which is applied to a hot water piping pipe. CONSTITUTION: The polyether ketone is formed by performing a self-condensation reaction of 3,5-bis(4-((2,3,4,5,6-pentafluorophenyl)carbonyl)phenoxy)-4-hydroxybenzophenon represented by the formula (1) or 3.5-difluoro-4-hydroxybenzophenone represented by the formula (2) and then substituting 50-80 mol.% of fluorine atoms contained in a molecular structure of the polyether ketone for a polar group. The polyvinyl chloride blend comprises: (i) 10-50 wt.% of the polyether ketone; and (ii) 90-50 wt.% of a polyvinyl chloride.
Patent KR-20010056931-A (KR)
Inventor: LIM GI BIN
IPC: F16H61/00
Filed: 1999-12-17
Abstract: PURPOSE: A hydraulic control system minimizes gearshift shock when manually changing a gear from 'N' to 'R'. CONSTITUTION: A second switch valve is disposed between a fourth pressure control valve(over drive pressure control valve)(14) and an over drive clutch(OD/C) so as to supply the fourth pressure control valve(14) pressure to the over drive clutch(OD/C) in forwarding third speed and the fourth pressure control valve(14) pressure to a reverse clutch(R/C) in reversing, with being controlled by actuation pressure and line pressure of an under clutch(UD/C) and a direct clutch(D/C). The hydraulic control system disposes a spool valve additionally to control reversing pressure thereby minimizing gearshift shock when manually changing a gear from 'N' to 'R'.