baber/WOPTO huggingface dataset:
Patent KR-20000062602-A (KR)
IPC: G06F15/78
Filed: 2000-02-23
Abstract: 판독 불량이 발생하기 전에 불휘발성 메모리로의 데이터 재기록을 행함으로써 데이터 보유 특성의 향상을 도모한다. 
     메모리 셀 어레이 내의 불휘발성 메모리(7)에 비하여 특성이 뒤떨어지는 참조용 불휘발성 메모리군(40)을 설치하여, 상기 참조용 불휘발성 메모리군(40)의 참조 결과에 기초하여, 제어 회로(44)에 의해 상기 불휘발성 메모리(7)에 축적된 데이터를 재기록함으로써 데이터 보유 특성의 향상을 도모하는 것이다.
Patent KR-20010087650-A (KR)
Title: Method for fabricating micro trench
Inventor: HA JAE HUI
IPC: H01L21/76
Filed: 2000-03-08
Abstract: PURPOSE: A method for forming a fine trench is provided to prevent the generation of a void and a leakage within a trench by forming a fine trench. CONSTITUTION: The first insulating layer(22) is formed on a semiconductor substrate(21). The second insulating layer(23) is formed on the first insulating layer(22). A photoresist layer is applied on the second insulating layer(23). The second insulating layer(23) is patterned by performing an exposure process and a development process. The second insulating layer(23), the first insulating layer(22), and the semiconductor substrate(21) are etched and the photoresist is removed. The semiconductor substrate(21) is etched by using mixed plasma. A sidewall is formed on the second insulating layer(23), the first insulating layer(22), and an etching face of the semiconductor substrate(21) by depositing and etching back an oxide layer or a nitride layer on the whole surface of the semiconductor substrate(21). A trench is formed by etching the semiconductor substrate(21) as much as a predetermined depth. The sidewall is removed by using an HF solution. The third insulating layer(27) is formed on the surface of the semiconductor substrate(21).
Patent KR-20010088157-A (KR)
Inventor: LEE JOONG HO
IPC: F16L37/00
Filed: 2000-03-10
Abstract: PURPOSE: A connector for connecting a hose is provided to prevent defects such as a pin hole formed on the inner surface of a space, in which an O-ring is located, when an O-ring connecting surface is injection-molded. CONSTITUTION: A connector for connecting the hose includes a flange part(12) to which a hose(10) of a small diameter is connected, a ring-shaped space part(15) formed on one side of the flange part, and a wing section(2b) inserted into the space part on a fused surface of a cap(2) fused and fixed on the flange part for preventing leakage due to deformation of an internal flange part(12a). The flange part is divided into the internal flange part and an external flange part(12b), which have the same thickness as another flange part(13).
Patent KR-20010091248-A (KR)
Title: The automatic action supply, draw out, separation equipment to make nail file
Inventor: CHA YOUNG CHUL
IPC: A45D29/12
Filed: 2000-03-14
Abstract: PURPOSE: An apparatus for automatically supplying, drawing, and punching an emery board for the manufacture of a nail file is provided to improve the productivity, and to minimize the generation of inferior goods. CONSTITUTION: According to the apparatus comprised of an emery board automatic supply part, an emery board automatic punching part, and an emery board automatic drawing part(300), a flat emery board material as a main material for producing the nail file is continuously and repeatedly supplied, and then the flat emery board material transferred at regular pitches by the actuation of a crank part depending on the detection of a sensor is drilled by using a cutting punch, and finally each cut emery board is automatically separated and drawn. In this way, the whole manufacturing process of the nail file is automatized, thus the production thereof being improved.
Patent KR-20010049237-A (KR)
Inventor: AHN YONG JIN
IPC: G11B7/007
Filed: 2000-03-25
Abstract: PURPOSE: A PID(Physical Identification Data) addressing method and detection method using wobble signal, wobble address encoding circuit and detection circuit and recording media are provided to read wobble address at any track by forming a phase correlation between an adjacent track as a special relation. CONSTITUTION: An address information to indicate a PID at each groove track makes a time division multiplexing and records a wobble signal which is made a phase modulation and a wobble signal having only a carrier, and classifies each groove track with an odd number groove track and an even number groove track, and arranges an order which records a wobble carrier and a wobble address information to be crossed each other against the odd number track and the even number track, and then the address data is not recorded at the even number groove track corresponding to section to record the address data of the odd number groove track.
Patent KR-20010094140-A (KR)
Title: Method for forming magnetic field in a building
Inventor: PARK HYUN SUP
IPC: E04B2/00
Filed: 2000-04-04
Abstract: PURPOSE: A forming method of a magnetic field in a dwelling space is provided to form beneficial environment for human health by forming a sufficient magnetic field inside a building. CONSTITUTION: A sufficient magnetic field is formed in a dwelling space by using electromagnets or permanent magnets mixed with building structure members or finish members. The magnets are added to steel concrete structure of a building or into wallpaper or ceiling members. In addition, magnetic powder is mixed with gypsum boards or insulating boards to generate magnetism. If permanent magnets are inserted into structure members such as pillars, walls or slabs, the permanent magnet pieces or powder are added to concrete to make the structure members obtain magnetism. In case of housing, an insulating layer is formed on bottom slabs and a bottom finish layer is formed thereon. The magnet pieces or powder are mixed with the insulating layer or the bottom finish layer. A magnetic field is formed in a room by the magnet pieces or powder as the magnet pieces or powder are mixed with insulating material or bottom finish material. In addition, the magnetic field is formed by final finish material including wallpaper or laminated paper containing the magnet powder. In a process of manufacturing wallpaper or laminated paper, fine magnet powder is added thereto. The wallpaper or laminated paper is used for covering the wall or bottom of a room. Thereby, the optimum magnetic field for human health is formed in a room. Electromagnets are used instead of the permanent magnets to form a magnetic field. The electromagnets are arranged on the inner wall or the ceiling and connected with a power system. The magnetic field is not generated when people are not in a room.
Patent KR-20010095529-A (KR)
Inventor: JANG JAE GYEONG
IPC: H01M10/0525
Filed: 2000-04-10
Abstract: PURPOSE: A lithium secondary battery is provided, to improve the stability in the battery's trouble by installing a connection part made of bimetal in the region connecting a battery cell, a protection circuit and an external terminal part electrically. CONSTITUTION: The lithium secondary battery comprises an electrode assembly(14) which comprises a cathode plate(11), an anode plate(12), a separator(13) between the two plates, and a cathode tap(15) and an anode tap(16) withdrawn from the two plates; a case(19, 110) which receives the electrode assembly and insulates it; a cathode terminal(17) and an anode terminal(18) which are connected with the taps(15, 16) electrically and exposed to the external of the case; a protection circuit(20) which is placed in the outside of the case and connected with the terminals(17, 18) electrically; an external terminal part(30) which is connected with the protection circuit and comprises a terminal part contact with the external apparatus; and a plurality of connection parts(21, 22) connects the cathode and anode terminals(17, 18) with the protection circuit(20) or the protection circuit with the external apparatus electrically, and cuts off the current if the temperature of a battery cell(10) increases over the specific temperature. The connection parts(21, 22) is made of preferably bimetal, and more preferably a shape memory alloy of nickel-titanium.
Patent KR-20000058323-A (KR)
Inventor: LEE JEONG MIN
IPC: H04N5/228
Filed: 2000-04-17
Abstract: PURPOSE: A method for directly storing image data in a NAND flash memory of a digital camera, is provided to directly store image data gained from a pickup tube in the NAND flash memory without using a frame buffer, so that the circuit configuration of the digital camera is simplified and power consumption is reduced. CONSTITUTION: A counter is re-loaded in order to store image data in the NAND flash memory by the page. Image data gained from a pickup tube are stored in the NAND flash memory. Whether interruption is generated in the counter is confirmed. If so, the storage of the image data is suspended, and whether a bad sector exists is checked. If so, a page number is varied by adding a predetermined value to the page number, and return to the step of checking the existence of a bad sector is performed. And if not, move to a next page is performed. Whether to be an end of one frame is confirmed, if not, return to the step of re-loading the counter is performed. And if so, image pickup is finished.
Patent KR-20010066768-A (KR)
Inventor: HAAVISTO KARI
IPC: B26D7/06
Filed: 2000-04-18
Abstract: PURPOSE: A pipe or shaft cutting device is divided to obtain pipe members of various kinds of lengths by optimization so that a rear end part of the pipe to be an end material is used for a cut pipe member of a length suitable for other order. CONSTITUTION: By a rotary cutting head(4) equipped with at least a sharp edge cutting wheel(5) pressed toward a rotary center shaft(A) according to rotation of the rotary cutting head, a pipe or a shaft is cut. In order to minimize an end material, a distance(m) of grasping clamps(6,7) existing on both sides of a cutting point is reduced as much as possible, preferably, to about 50 mm or below. In order to reduce the end material, also an automatic adjustment of a feeding length of a cutting object pipe(1) is required.
Patent KR-20010097748-A (KR)
Inventor: BANG HO SEONG
IPC: G06F17/00
Filed: 2000-04-26
Abstract: 본 발명은 인터넷을 이용한 음악재생 서비스 방법에 관한 것으로서, 
     대부분의 음악재생 서비스는 단순히 다수의 디지탈오디오신호 즉, 다수의 재생곡을 데이타베이스화하여 저장시켜논 상태에서 사용자가 인터넷을 접속하여 요구할 경우 해당 곡을 전송해주거나 아니면 그 재생곡을 재생시켜주는 것이므로, 사용자가 그 재생곡이 누구의 곡인지, 그 노래를 부르는 가수 또는 그 노래에 대한 정보를 자세하게 알 수 없었으며, 특히 재생곡의 가사를 실제로 볼 수 없으므로 사용자의 다양한 욕구를 충족시키지 못하게되는 문제점이 발생하고 있었다. 
     따라서, 상기 문제점을 해결하기위한 본 발명은 사용자에게 제공한 다수의 재생곡과 그 곡이 수록되어있는 앨범쟈켓 및 곡에 대한 정보와 소정의 광고영상을 데이타베이스화하여 저장하고, 사용자의 재생곡 선택시 재생곡에 대한 앨범쟈켓, 정보, 가사 등을 화면상에 출력하면서 소정의 광고영상을 중간중간에 삽입하여 출력하므로서, 사용자가 재생곡에 대한 여러가지 정보를 손쉽게 습득할 수 있고, 재생곡을 들으면서 가사를 함께 볼 수 있음은 물론 가사와 함게 출력되는 광고영상으로 인하여 광고효과까지 기대할 수 있도록 한 인터넷을 이용한 음악재생 서비스 방법에 관한 것이다.
Patent KR-20010020788-A (KR)
Title: Processing apparatus and processing method
Inventor: KOHAMA KYOJI
IPC: B08B3/02
Filed: 2000-04-27
Abstract: PURPOSE: Disclosed is a treating device and a treating method capable of preventing the generation of cross-contamination even if plural kinds of treating liquid are supplied to the same device. CONSTITUTION: The cleaning device(1) for applying cleaning processes to the wafer W in the order of SPM cleaning, rinse cleaning, SCI cleaning, rinse cleaning and drying treatment is provided with an outside cleaning chamber(2), an inside cleaning chamber(4) and an elevator structure(6) for taking in and out the inside cleaning chamber(4) into and from the outside cleaning chamber(2). The elevator structure(6) is switched to a state that the wafer W is housed in the inside cleaning chamber(4) when the SPM cleaning and the subsequent rinse cleaning are executed and is switched to a state that the wafer W is housed in the outside cleaning chamber(2) when the subsequent SCI cleaning and the final drying treatment are executed.
Patent KR-20000049853-A (KR)
Title: Qpsk modulator
Inventor: KIM YONG OK
IPC: H04L27/18
Filed: 2000-05-03
Abstract: PURPOSE: A QPSK modulator is provided to speed up the modulator by improving a filter of limiting a band width of a carrier, introducing the Zero-IF mode, and removing a multiplier. CONSTITUTION: A first pulse shaping filter(PSF) limits the band of the I-channel signal to an allocated band width. A second pulse sharing filter(PSF) limits the band of the Q-channel signal to an allocated band width. A first multiplier multiplies the output of the first PSF by using the Zero-IF mode. A second multiplier multiplies the output of the second PSF using the zero-IF mode. An adder adds the outputs of the first multiplier and the second multiplier. The PSFs include a level converter for converting the I-channel signal or the Q-channel signal to '01' and '11'.
Patent KR-20010100592-A (KR)
Inventor: AHN YONG SEOK
Filed: 2000-05-04
Abstract: 본  발명은  무선을  통하여  명함을  교환할  수  있는  전자명함에  관한  것으로서,  메모리를  내장하여  명함정보를  저장하고  장치내의  각  구성요소를  제어하는  중앙 제어부와,  명함정보  및  송수신  상태를  표시하는  표시부와,  명함정보를  입력하거나  송수신를  제어하는  명령어를  입력하는  키패드부와,  외부의  다른  전자명함과  통신을  할  수  있는  무선통신부로  구성되어,  중앙제어부의  메모리에  명함정보를  저장하고  있다가  이를  키패드부의  송신키를  사용하여  무선통신부를  통하여  상대방  전자명함에  송신하고  키패드부의  수신키를  사용하여  수신모드로  되어  상대방의  전자명함에서  보내지는  명함정보를  무선통신부를  통하여  수신하고  이를  중앙제어부의  메모리에  저장하는  것을  특징으로  한다. 
     또한  PC  등과  연결되어  명함정보를  관리할  수  있고  전화를  걸  수  있다. 
     또한  휴대폰  등에  내장되는  구조를  취하여  그  편리성을  한층  더  높일  수  있다. 
     따라서  프린트된  명함을  주고  받아  이를  정리하고  보관하는  불편이  크게  없어지는  우수한  효과가  있다.
Patent KR-20010103373-A (KR)
Inventor: JUN JEA JOON
IPC: A63B69/34
Filed: 2000-05-10
Abstract: 본 발명은 주로 발을 이용하여 가격하면 옆으로 넘어진 후 다시 세워져서 스트레스를 해소할 수 있도록 하는 동시에 운동기구로 사용되도록 하는 스트레스 해소를 위한 운동용 쿠션백에 관한 것이다. 
     본 발명은 금속으로 형성되어 외측을 추 보호구(3)로 보호하는 무게 중심추(2)와, 
     상기 무게 중심추(2)가 하측 내부에 삽입되어 고정되고 외측이 라운드지게 형성되는 추 보강대(4)와, 
     상기 추 보강대(4)의 상측에 설치되며 하측에 받침대(8)로 지지되고 내부에 금속 보호구(7)로 보호되며 외측으로 쿠션 보호구(5)가 설치되는 쿠션(6)과, 
     상기 쿠션(6)의 외부에는 외피(14)로 감싸지며 상측에 덮개(16)와 구멍(18) (19)에서 고정끈(17)으로 연결되게 하는 쿠션백(1)을 이루도록 하여 발로 가격하면 넘어진 후 곧바로 일어나도록 하여 스트레스를 해소하는 동시에 운동을 하는 효과를 제공하는 것이다.
Patent KR-20010103457-A (KR)
Inventor: KIM SIN GON
Filed: 2000-05-10
Abstract: 본 발명은 운용자 명령어에 의해 출중계 루트의 트렁크에 대한 메모리 정보를 점검하여 출중계 루트의 트렁크 헌팅 상태를 비교 분석할 수 있도록 한 이동통신 교환기의 출중계 루트의 트렁크 분석방법에 관한 것으로, OMID가 출중계 루트의 트렁크 분석을 위한 운용자 명령어 및 입력 파라미터를 입력받아 EC로 출력하는 운용자 명령어 및 입력 파라미터 입력 단계와, 상기 EC가 상기 운용자 명령어 및 입력 파라미터 입력 단계에서 입력된 운용자 명령어 및 입력 파라미터를 점검하고 RDH가 분석한 후 출중계 루트의 트렁크 분석 요구신호를 RCO로 출력하는 운용자 명령어 및 입력 파라미터 점검 및 분석 단계와, 상기 RCO가 상기 운용자 명령어 및 입력 파라미터 점검 및 분석 단계의 분석 요구신호에 따라 특정 출중계 루트에 속한 트렁크 링크와 아이들한 트렁크에 대한 비교를 수행함으로써 특정 출중계 루트에 대한 트렁크를 분석하는 출중계 루트의 트렁크 분석 단계와, 상기 출중계 루트의 트렁크 분석 단계에서 분석된 결과를 OMID의 상태 표시 콘솔을 통해 출력하는 분석 결과 출력 단계로 이루어지는 것을 특징으로 한다.
Patent KR-20010105743-A (KR)
Title: Electronic expansion valve of air conditioner system for automobile
Inventor: OH MAN JU
IPC: F25B41/04
Filed: 2000-05-17
Abstract: An encoder-modulator (12, 13, 15) for coupling a digital baseband television signal to a VSB digital television receiver (24) that includes filters (26), equalization circuitry (30) and forward error correction circuitry (31) for correcting signal impairments that are below a given threshold. The encoder modulator processes the baseband signal for low power transmission on an RF channel with less-than-nominal bandpass characteristics. A coaxial cable (23) or other low noise communication link directly connects the RF signal to the RF input of the television receiver (24). Any errors or signal impairments in the transmitted signal that are below the predetermined threshold are corrected by the filters and equalization circuitry built into the VSB digital television receiver (24).
Patent KR-20010105968-A (KR)
Title: Tile adhesion method and device
Inventor: LEE KYUNG WOO
IPC: E04F13/08
Filed: 2000-05-19
Abstract: The invention relates to a device for foaming foamed shaped parts in a form tool which can be opened and closed. Said tool is provided with a non-stick coating. The invention also relates to a method for the production of a form tool with a non-stick coating. Lastly, the invention relates to a method for producing a foamed shaped part. Foamed shaped parts stick to the form tools in which they are produced thereby making it difficult or even impossible to remove said parts therefrom. The invention provides a solution to this problem by creating a dense crystal- structure surface coating for said form tools. The molecules of the foaming systems are also excited by ionized air along the surfaces of said tools in such a way that the molecules cannot penetrate the crystal- structure coating. Molecular excitation of the foaming systems along the coating in the mold cavity occurs by means of a flat voltage potential which in turn obtains its impulsivity from the positive charged ionized gas that is blown in.
Patent KR-20010109663-A (KR)
Inventor: KIM YEONG HWAN
Filed: 2000-06-01
Abstract: 가. 청구범위에 기재된 발명이 속한 기술분야 
     본 발명은 부호분할 다중접속 방식의 이동통신 시스템 기지국제어기에서 데이터 통신에 따른 데이터 전송에 관한 것이다. 
     나. 발명이 해결하고자 하는 기술적 과제 
     부호분할 다중접속 방식의 이동통신 시스템 기지국제어기에서 기존의 하드웨어 장치를 활용하여 고속의 데이터 전송을 수행할 수 있도록 한다. 
     다. 발명의 해결방법의 요지 
     본 발명의 요지는 부호분할 다중접속 방식의 이동통신 시스템 기지국제어기에서 고속의 데이터를 전송하기 위한 방법에 있어서, 
     교환국으로부터 데이터의 수신이 있으면 해당 데이터의 수신측에서 요구한 전송 속도를 검출하는 과정과, 상기 검출된 전송속도에 따라 인터럽트 검색 주기를 조정하여 디피램의 쓰기 동작을 조정하는 과정과, 상기 조정된 쓰기 주기에 따라 20mSEC 간격에 포함되는 프레임의 넘버링 정보를 포함하여 상기 쓰기 동작을 수행하는 과정으로 이루어짐을 특징으로 한다. 
     라. 발명의 중요한 용도 
     부호분할 다중접속 방식의 이동통신 시스템 기지국제어기에서 고속의 데이터 전송을 수행하는데 이용된다.
Patent KR-20010112866-A (KR)
Title: Ship for removing oil from water
Inventor: KIM BOK JOONG
IPC: B63B35/32
Filed: 2000-06-15
Abstract: Compounds of formula (I), in which the polydispersity M w/ M n is for example 1; n is 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14; the radicals R 1 are for example C 1 -C 18 alkyl or C 5 -C 12 cycloalkyl; R 2 is for example C 2 -C 12 alkylene; the radicals A and B* are independently of one another - OR 3, -N(R 4)(R 5) or a group of formula (II); R 3, R 4 and R 5, which are identical or different, are for example hydrogen or C 1 -C 18 alkyl, or -N(R 4)(R 5) is additionally a group of formula (III) with Y being -O-, - CH 2 -, -CH 2 CH 2 - or >N-CH 3 ; X is -O- or >N-R 6 ; R 6 is for example hydrogen or C 1 -C 18 alkyl; R is preferably a group of formula (IV); and B has one of the meanings given for A; with the proviso that in the individual recurrent units of formula (I), each of the radicals B, R, R 1 and R 2 has the same or a different meaning. The indicated compounds are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.
Patent KR-20010113359-A (KR)
Inventor: LEE BONG SANG
IPC: D06F39/08
Filed: 2000-06-19
Abstract: 본 발명은 배수가 후방측으로 이루어지도록 하여 외관 디자인을 향상시키고 조립작업을 용이하게 함과 아울러 전방측에 남아 있는 잔수를 제거할 수 있는 기울어진 세탁기의 배수장치를 제공하기 위한 것이다. 
     이러한 기울어진 세탁기의 배수장치는 케이스에 내장되어 상측이 전방으로 기울어진 저수조의 후방측 바닥면에 형성되는 제1배수구와, 상기 제1배수구와 외부로 노출되는 배수호스 사이에 연결되어 세탁수가 배출되는 제1배수 파이프와, 상기 제1배수 파이프의 일측에 설치되어 배수되는 세탁수에 배수압을 부여하는 배수모터와, 상기 저수조의 전방측에 남아 있는 잔수를 제거할 수 있도록 상기 저수조의 전방측 바닥면에 형성되는 제2배수구와, 상기 제2배수구와 배수모터 사이에 연결되는 제2배수 파이프를 포함하여 이루어진다.
Patent KR-20010021033-A (KR)
Inventor: NAITO HAYATO
IPC: H02K11/02
Filed: 2000-06-27
Abstract: PURPOSE: A brushless motor is provided to be capable of suppressing the generation of electronic noise by simultaneously fixing a flange of a bearing holder, a core, a core holder, a metal board using a tap screw. CONSTITUTION: The brushless motor(1) is a direct PWM(Pulse Width Modulation) mode motor, and a rotor(5) rotated together with a rotating shaft(10), a stator(30) having a stay core(32) wound with a drive coil(31), a metal board(40), and a motor drive circuit(60) formed on the metal board. At least one of the metal board(40) and the stay core(32) is connected to a fixed potential through a conductive connecting member. Further, at least one of a connecting part of a main body to which the motor(1) is attached, the metal board(40) and the stay core(32) has insulation resistance of at least 1 kilo-ohm.
Patent KR-20020007470-A (KR)
Title: A method and system using a navigation system in combination with a blind spot detection equipment for vehicle drive
Inventor: KANG SEONG DON
IPC: G08G1/0968
Filed: 2000-07-13
Abstract: PURPOSE: A combination system is provided to enable a user to seize a traffic circumstance using geography information and to sense a blind spot zone of a vehicle. CONSTITUTION: An input and output portion(1) comprises a monitor(11) and a touch pad(12). A switching process portion(2) comprises an area complexity database(24) for storing information associated with area complexity. The switching process portion(2) performs a navigation/blind spot sensing switch function for switching between a navigation mode and a blind spot sense mode, a rotation lamp sense function for sensing whether a rotation lamp is operated, and an area complexity judgement function for comparing information extracted through the area complexity database(24) with information associated with a current area. A blind spot sensing part(3) comprises a camera(31) for taking a picture of the blind spot of a vehicle, and performs a camera control function and a picture control function for outputting picture data from the camera to the monitor. A navigation portion(4) comprises a GPS(41) system section including a GPS reception function and a position compute program, a self navigation(42) system including a self navigation position compute program, and an electric map database(43) for storing a digital electric map.
Patent KR-20000059163-A (KR)
Inventor: PARK CHA CHEOL
IPC: G08B21/02
Filed: 2000-07-19
Abstract: PURPOSE: A mobile handset for preventing a missing child is provided to easily find a missing child in a department store, park, amusement park and busy street using existing a city-phone receiver when the child is away from its protector more than a specified distance. CONSTITUTION: A mobile handset for preventing a missing child includes followings. If a child wearing shoes with a built-in wireless transmitter with a proprietary code is away from its protector more than a specified distance, the transmission signal with less than specified strength makes the mobile handset the child's protector carries sends out an alarm. If the child is too far away for the protector to find it for oneself, he/she contacts the service provider, and the service provider positions the location of the transmission signal of the proprietary code and then notifies the protector.
Patent KR-20020010251-A (KR)
Title: Polyurethanes Having Good Hydrophilic and Ion-conductive Properties and Method for Preparing Thereof
Inventor: KIM JAE IK
IPC: C08G18/10
Filed: 2000-07-28
Abstract: PURPOSE: Provided is a polyurethane elastic body excellent in hydrophilicity and ion-conductivity, which can be used for a film for anti-steam-up, anti-condensation, and anti-static and also can be used for a solid electrolyte membrane of a lithium secondary battery. CONSTITUTION: The polyurethane or polyurethane/urea elastic body is produced by a process comprising the steps of: preparing a prepolymer(formula 3) by polymerizing diisocyanate such as dicyclohexyl methane diisocyanate and polyol such as polyethylene glycol; reacting the prepolymer(formula 3) with a chain extender(formula 1) or a chain-terminating agent(formula 2) such as 1,2-ethylene diamino-N,N'-(propanesulfonate), wherein a sulfone group contained in the chain extender(formula 1) or the chain-terminating agent(formula 2) is neutralized by alkali or trialkylamine. In the formula, R1 is -CH2CH2SO3H, -CH2CH2CH2SO3H, or -CH2CH2CH2CH2SO3H, R2 is -CH2CH2-, -CH2(CH2)4CH2-, -CH2CH2OCH2CH2OCH2CH2-, and etc., and m and n are same or different, wherein the total of m and n is less than 7.