baber/WOPTO huggingface dataset:
Patent KR-19990036057-A (KR)
Title: 가열 롤러 정착형 정전하상 현상용 토너
IPC: G03G9/087
Filed: 1996-07-29
Abstract: 본 발명은 결착 수지, 착색제 및 정전 조정제를 주성분으로 하는 정전하 상 현상용 토너에 있어서, 상기 결착 수지는 적어도 환상 구조를 가진 폴리올레핀 수지를 포함하며, 또한 i.v.(극한점도)≥0.25dl/g으로, HDT(열변형 온도 DIN 53461-B)≥70℃이고, 또한 GPC에서의 측정에 있어서 수평균 분자량이 7500이상으로 중량 평균분자량이 15000이상인 환상 구조를 가진 폴리올레핀 수지를 결착 수지 전체중에 50중량%미만 함유하여 이루는 것을 특징으로 하는 가열 롤러 정착형 정전하상 현상용 토너에 관한 것이다.  본 발명에 의한 가열 롤러 정착형 정전하상 현상용 토너는, 정착성, 광투과성, 내구토너 스펜트성에 뛰어나며, 선명한 고품질의 화상을 얻을 수 있고, 또한 건식1성분계 자성토너, 건식1성분계 비자성토너, 건식2성분계 토너 및 액체 토너의 어느 쪽에도 적용할 수 있으며 또한, 특히 컬러 토너에 사용하였을 때 큰 효과를 발휘할 수 있다.
Patent KR-19990036179-A (KR)
Title: 안정한 자유 라디칼의 존재하에 1,3-디엔의 제어된 자유 라디칼 중합에 의한 텔레켈릭 1,3-디엔 올리고머의 제조 방법
IPC: C08F4/00
Filed: 1997-06-03
Abstract: 본 발명은 일종 이상의 1,3-디엔의 라디칼 중합반응을 수용액으로 있는 과산화수소와 같은 열민감성 개시제를 사용하여 안정한 니트로옥시드 라디칼의 존재 하에 수행하는 것으로 구성된,  텔레켈릭 1,3-디엔 올리고머류의 제조 방법에 관한 것이다. 
     본 발명은 또한,  신규 생성물로서,  전술한 텔레켈릭 1,3-디엔 올리고머,  그리고 디- 또는 멀티블록 공중합체의 제조를 위한 그의 용도에 관한 것이다.
Patent KR-19990063945-A (KR)
IPC: A61P7/00
Filed: 1996-09-30
Abstract: A method to increase the efficiency of transduction of hematopoietic and other cells by retroviruses includes infecting the cells in the presence of fibronectin or fibronectin fragments. The fibronectin and fibronectin fragments significantly enhance retroviral-mediated gene transfer into the cells, particularly hematopoietic cells including committed progenitors and primitive hematopoietic stem cells. The invention also provides improved methods for somatic gene therapy capitalizing on enhanced gene transfer, hematopoietic cellular populations, and novel constructs for enhancing retroviral-mediated DNA transfer into cells and their use.
Patent KR-19990071595-A (KR)
IPC: A61K38/04
Filed: 1996-10-30
Abstract: The invention relates to a process for the production of morphologically uniform microcapsules that contain peptides, proteins or other water-soluble biologically active substances as active ingredients as well as microcapsules that are produced according to this process with a degree of concentration of between 3 to 30% by weight and a diameter<=8 mum.According to the invention, biodegradable polymers are dissolved in a halogen-free solvent or solvent mixture, and the buffered active ingredient solution, which has a pH of between 6.0 to 8.0, is dispersed into this solution. Then, an aqueous solution that contains a surface-active substance (W/O/W-emulsion) is added to this W/O-emulsion, and the solvent is removed.The microcapsules that are produced with this process do not show any tendency toward agglomeration. The encapsulation efficiency of the process is approximately 90 to 95%.
Patent KR-19990071699-A (KR)
Title: 전자기장으로부터 생명체의 보호
Filed: 1995-11-28
Abstract: 전기 요소 및/또는 자기 요소를 갖는 주위의 시간 변화 장이 생명체에 악영향을 주는 것을 방지하는 방법 및 장치.  보호를 제공하기 위해, 생명체가 노출되는 장은 생명체가 노출되는 상기 장의 특성 변수의 적어도 하나 내에서 10초 이하의 시간간격내에서 변화되는 장을 발생시킨다.  생명체가 노출되는 장의 세기는 주위의 장의 세기의 함수관계에 의해 제어된다.  이익을 받는 생명체에는 인간이 포함된다.
Patent KR-19990077309-A (KR)
Title: 노즐 형성 방법 및 장치
IPC: H01S3/00
Filed: 1997-01-16
Abstract: 노즐 플레이트에 레이저 빔을 향하게 함으로써 잉크젯 프린트헤드용 노즐 플레이트 내의 노즐이 형성된다. 빔 발산의 정확한 제어는 빔을 각각 발산성을 가지고 있는 부빔들로 분할하되, 초기 발산은 분할에 의해 빔이 형성되는 지점으로부터 떨어져 위치하도록 하며, 이후 부빔들을 재결합시킴으로써 이루어진다. 이로써, 제조되는 노즐의 테이퍼 및 입구 형상에 있어서의 더 높은 정확성이 얻어진다.
Patent KR-19990082234-A (KR)
Title: 콘택트렌즈의 보존 소독용 용액
IPC: A61L12/14
Filed: 1997-01-29
Abstract: 본 발명은 폴리리신을 함유하는 것을 특징으로 하는 콘택트 렌즈의 보존 및(또는) 소독용 용액을 제공한다.
Patent KR-19990087262-A (KR)
Title: 화상 부호화 장치, 화상 부호화 방법, 화상 복호 장치, 화상 복호 방법 및 기록 매체
IPC: H04N7/32
Filed: 1997-12-26
Abstract: 예측 탭 생성 회로(32)에서는 선별 추출 회로(31)에서 HD 화상을 선별 추출함으로써 얻어지는 SD 화상을 구성하는 화소 중의 1개를 주목 화소로서, 그 주목 화소에 대하여, 복수 패턴의 예측 탭이 형성되며, 클래스 분류 적응 처리 회로(33)에서는 예측 탭과, 소정의 예측계수의 선형 결합에 의해, HD 화상의 예측치를 구하는 적응 처리가 행하여진다.  그리고, 예측 오차 산출 회로(34)에서는 복수 패턴의 예측 탭의 각각으로부터 얻어지는 예측치의, HD 화상에 대한 예측 오차가 산출되며, 탭 패턴 코드 부가 회로(36)에서는 복수 패턴의 예측 탭 중, 최소의 예측 오차가 얻어짐으로써 대응하는 패턴 코드가, 주목 화소의 화소치에 부가된다.  따라서, 그 패턴 코드에 따라서 예측 탭을 형성하여 복호를 함으로써, 보다 화질이 향상된 복호 화상을 얻는 것이 가능해진다.
Patent KR-20000005483-A (KR)
Title: Liquid crystal display
Inventor: HIROTA NAOTO
IPC: G02B5/20
Filed: 1997-04-15
Abstract: PURPOSE: A liquid crystal display of an active matrix shape is provided to conspicuously enhance productivity utilizing the same rear layer and liquid crystal irrespective of a horizontal field method and a vertical field method. CONSTITUTION: The display comprises a pair of substrates, a liquid crystal composite layer inserted between the substrates, a plurality of scanning lines and an image signal wire arranged on a surface opposite to one of the substrates with a matrix shape, a pair of pixel electrodes, and an active device connected to the pixel electrode, the scanning line, and the image signal wire. At least one of the substrates is transparent, and the pair of pixel electrodes are rectangular.
Patent KR-20000016562-A (KR)
Title: Circuit and method for driving electrooptic device, electrooptic device, and electronic equipment made by using the same
Inventor: MATSUEDA YOJIRO
IPC: G09G3/36
Filed: 1998-04-16
Abstract: PURPOSE: A circuit for driving an electrooptic device, such as a liquid crystal device, wherein the functions of D/A conversion and gamma-correction are realized with a circuit configuration which is relatively simple and small-sized and corresponds to digital picture signals. CONSTITUTION: The driving circuit for a liquid crystal device is provided with a DAC (digital to analog converter) (3) which outputs the voltage signal (Vc) corresponding to N-bit digital picture data (DA) indicating gradation to the signal line of the liquid crystal device. The DAC (3) performs gamma-correction by approximating its output driving voltage characteristics to the optical characteristics of the liquid crystal device based on either one of paired first and second reference voltages in accordance with the value of a most significant bit (MSB).
Patent KR-20000022360-A (KR)
Title: Method of reusing fillers and coating pigments used in paper, paperboard and cardboard manufacture
Inventor: MUENCHOW DIETER
IPC: D21H19/38
Filed: 1997-03-19
Abstract: PURPOSE: A method of reusing fillers and coating pigments used in the manufacture of paper, paperboard and cardboard is provided. CONSTITUTION: A method for reusing fillers and coating pigments used in the manufacture of paper, paperboard and cardboard and obtained from the residual water slurries of waste water from paint works, de-inking plants, intra-plant purification plants or separation devices is characterized. The residual water slurries containing fillers and coating pigments are delivered as a powder or slurry containing fresh pigment and/or fresh fillers to a mixing stage to form a pigment slurry containing fresh pigment or fresh fillers.
Patent KR-20000051583-A (KR)
Inventor: PARK SUNG HO
IPC: A47G1/12
Filed: 1999-01-23
Abstract: PURPOSE: A present invention is able to produce resin memorial tablet with fine quality, reduce manufacturing process by being to reach in regular position easily, is easy to lay in and form interior part by solving difficulty due to flow generated from liquidity of transparent resin itself. CONSTITUTION: Resin memorial tablet is characterized by the steps of: putting transparent resin(20) to mold(10); the mold(10) has rounded elevated place(13) around with constant size dimensions from the bottom with sinking part and formed groove part(14); forming by laying in stationary board(40) to the transparent resin(20); stationary board(20) has interior part(30) stuck advance on stationary board(40) printed with adhering position by the silk screen method before hardening the transparent resin(20); forming and unifying by one hardening process with pouring colored or transparent resin(50, 20).
Patent KR-20000051684-A (KR)
Title: Test pattern of semiconductor chip
Inventor: KIM GI YONG
IPC: H01L21/66
Filed: 1999-01-25
Abstract: PURPOSE: A test pattern of a semiconductor chip is provided to improve reliability of measuring an electrical characteristic and to reduce an area of a scribe line of a wafer, by forming the test pattern in the semiconductor chip. CONSTITUTION: A test pattern(20) of a semiconductor chip is formed in the semiconductor chip(10) to measure an electrical characteristic of the semiconductor device and to analyse a defect of the process for manufacturing the semiconductor device. Wiring(21) is disposed to share a metal pad of the test pattern with a bonding pad(11) of the semiconductor chip and can be connected or disconnected by a laser linking method according to a user's selection.
Patent KR-20000055135-A (KR)
Inventor: HAN GI WON
IPC: F24F11/00
Filed: 1999-02-03
Abstract: PURPOSE: An apparatus and a method for controlling operation of an air conditioner are provided to expand a lifespan of a compressor by alternately operating a plurality of cooling cycles, and uniformly maintain a temperature of an air conditioning space by controlling the temperature with other cooling cycle if any cooling cycle has troubles. CONSTITUTION: A method for controlling operation of an air conditioner having a control part, a memory, first and second heat exchangers and a display part, includes the steps of determining whether a mode selection signal is input from the control part(S26), performing a function according to a selection signal if the mode selection signal is applied and storing a current operating state in the memory, alternately outputting control signals to the first and second heat exchangers according to a sensed room temperature if the mode selection signal is not applied(S30), and transmitting a signal to a system manager if an abnormal state occurs in the first or second heat exchangers.
Patent KR-20000060943-A (KR)
Inventor: KUM KI JUNG
IPC: G08G1/14
Filed: 1999-03-22
Abstract: PURPOSE: A method for guiding a parking lot guide device is provided to prevent unnecessary fuel consumption and a traffic jam by previously informing the user of a position of a parking lot and a usage possibility of the parking lot mounted in a unit area. CONSTITUTION: A parking lot guide device includes a parking lot using information transmitter(20,30), a parking lot information board(60), and a parking lot operation/management system(50). The parking lot using information transmitters(20,30) transmits a vehicle entrance/leaving data of a corresponding parking lot to a central control unit through PSTN or a private line, and is mounted to each parking lot inside of the unit area. The parking lot information board(60) is mounted to a side of street of the unit area, and displays a position and the using information of the parking lot mounted in the unit area. The operation/management system(50) is mounted to a central control unit, determines if a corresponding parking lot can be used or not according to the vehicle entrance/leaving data of a corresponding parking lot and a specific data of a corresponding parking lot, and displays the result to the parking lot information board(60). Thereby, unnecessary fuel consumption and a traffic jam are prevented by previously informing the user of a position of a parking lot and a usage possibility of the parking lot mounted in a unit area.
Patent KR-20000065477-A (KR)
Inventor: KIM SANG HYEON
IPC: A61B8/06
Filed: 1999-04-06
Abstract: PURPOSE: A coding/decoding system of a three-dimensional color ultrasonic image is provided to classify an ultrasonic image according to a characteristic of each pixel data, and codes/decodes the classified ultrasonic image. CONSTITUTION: A coding system for coding ultrasonic image data includes a classification part(31), a first coding part(35), a second coding part(36), a run-level coding part(32), a pixel divider(34), and a multiplexer(37). The classification part classifies input ultrasonic image data into a zero-pixel data, grey pixel data, indexed color pixel data, and outputs classified data. The first coding part pressurizes/codes the grey pixel data. The run-level coding part performs a run level coding about the classified data. The pixel. The pixel divider supplies each pixel data of the input ultrasonic image data to one of the first and second coding parts, based on the classified data of the classification part. Thereby, an image is lossless-coded with a high compression ratio, and three-dimensional index color ultrasonic image can be lossy-coded.
Patent KR-20000065893-A (KR)
Inventor: KIM GYU SEONG
IPC: B41J29/38
Filed: 1999-04-10
Abstract: PURPOSE: A control system for driving motors of a printer is provided to increase the number of controllable motors by reducing the burden of a central control unit for controlling the velocity of motors and control the motors at high speed. CONSTITUTION: A control system for driving motors of a printer includes a plurality of motors(23) installed to drive the parts of the printer, a plurality of motor drivers(22) controlling the electric power supply of the motors according to the received driving pulse signal, at least one or more pulse generating parts(24) outputting the driving pulse signal from the stored driving pulse data to the motor drivers according to the driving control information to each motor driver, and a central control unit(21) controlling the driving of the pulse generating parts and downloading the driving control information to the pulse generating parts through a signal line.
Patent KR-20000066822-A (KR)
Inventor: YOO JAE GUK
IPC: A01G1/04
Filed: 1999-04-21
Abstract: PURPOSE: Provided is a solid culturing method of Phellinus linteus strain which produces polysaccharide-protein showing excellent immunity in particular using a fruiting body or a spore of Phellinus linteus KCTC 0173BP. CONSTITUTION: A solid culturing method of Phellinus linteus strain(KCTC: 0173BP) is characterized by comprising the following steps of:(i)transferring a fruiting body or a spore of Phellinus linteus strain into agar medium and performing serial passage culture 2-3 times; (ii)inoculating the above thing in solid medium which comprises a mixture of one thing selected from trees of overstory, saw dust of trees of overstory and immersion liquid of trees of overstory: bran: peptone in the weight ratio of 10:0.5-1.8:0.2-0.9 and 30-50 wt.% of mulberry extract; and existing nutrients then followed by culturing at 13-36°C for 20-200 days.
Patent KR-20000067229-A (KR)
Inventor: KIM JAE MYEONG
IPC: H01J1/30
Filed: 1999-04-26
Abstract: PURPOSE: Anode fabricating method of a flat panel display device is provided to make a superior film quality, easily form a fine pattern, and reduces a production cost. CONSTITUTION: Anode fabricating method sputters/etches Indium tin oxide on a transparent plate, and forms anode electrode of a stripe pattern. A barrier paste is formed between the anode electrode patterns, a thermal processing is formed, and then a barrier is formed. A photo-conductive material and a distribution material are mixed on a fluorescent material on which In2O3 is coated, and thus a fluorescent material slurry liquid is made. A fluorescent material slurry liquid is deposited on a transparent plate, and is dried. The transparent plate is light-exposed, and a fluorescent slurry liquid is selectively hardened. A low-pressure nozzle developing is performed, a fluorescent slurry liquid which is not hardened is removed, thereby forming a fluorescent layer pattern. Thereby, by the anode fabricating method of a flat panel display, a film of superior quality is fabricated, a fine pattern is easily formed, and a production cost is reduced.
Patent KR-20000067673-A (KR)
Inventor: KIM HO JIN
IPC: G07G1/01
Filed: 1999-04-30
Abstract: PURPOSE: A method of driving a dual touch screen is provided to increase work performance capacity by simultaneously driving two touch screens using one micro computer. CONSTITUTION: A method of driving a dual touch screen comprises generating a square wave in a state where an electronic cash register is at a normal operation state. Whether the square wave is at a low level or at a high level is judged. If the square wave is at a high level, the first touch screen is driven by enabling the first touch screen driving part. A key signal from the first touch screen is scanned. If the square wave is at a low level, the second touch screen is driven by enabling the second touch screen driving part. A key signal from the second touch screen is scanned. The signals scanned from the touch screens are processed by a micro computer, and processed results are output through the first and second LCD driving parts into the first and second TFT LCDs.
Patent KR-19990088199-A (KR)
Title: 필요한고속가산기의수가감소된ｃｄｍａ수신기
IPC: H04B1/7093
Filed: 1999-05-12
Abstract: 필요한 고속 가산기의 수가 감소된 CDMA 수신기가 개시되어 있다.  고속 가산기, 제1 및 제2 스위치, 및 레지스터군을 이용하여 특정 사용자 신호에 대응하는 확산 코드의 각 값에 대하여 1심벌 기간의 적분이 행해진다.  적분된 값은 레지스터군의 각각의 제1 레지스터들에 일단 저장된 다음 각각의 확산 코드들에 따라서 역확산이 행해진다.  그 결과, 제1 승산기들로부터의 값들을 가산하기 위한 제1 저속 가산기 및 제1 레지스터들의 값들을 가산하기 위한 제2 저속 가산기로서 동작 속도가 느린 가산기가 이용될 수 있다.  그러므로, 단 하나의 고속 가산기만으로 공통 파일럿 신호 및 사용자 신호를 역확산시킬 수 있다.
Patent KR-20000075041-A (KR)
Inventor: YUM BYEONG DEOK
IPC: H04N5/64
Filed: 1999-05-28
Abstract: PURPOSE: A speaker device of a TV is to easily perform an assembling and disassembling operation of the speaker device and efficiently prevent a vibration generated from the speaker device, thereby improving a reliability of the TV. CONSTITUTION: The speaker device(1) of a TV, which is disposed at an inner side of a speaker grill(12) of a cabinet(10), comprises a fixing portion(20) integrally formed at an upper portion of fixing boss(22) disposed at an upper, lower, right and left side in an inner side of the speaker grill to have a guiding portion(24) integrally and horizontally formed at an upper portion thereof; a supporting rib(30) disposed at an inner side of the cabinet to discharge a sound to an outside of the fixing portion; and a speaker(40) disposed at an upper portion of a speaker frame(42) fixed to the guiding portion of the fixing portion. In the device, the fixing portion is an elastic rib(20a) slantingly fixed to the fixing boss to fixedly support the speaker frame. The guiding portions of the fixing portion are opposite to each other.
Patent KR-20000005946-A (KR)
Inventor: KERURAC POLEM
IPC: G01R13/20
Filed: 1999-06-04
Abstract: PURPOSE: The method is to define the user controllable unusual waveform for an oscilloscope to automatically execute waveform detection and define and detect the unusual waveform acquired by a digital oscilloscope. CONSTITUTION: The method for afterglow decay includes a stage of dividing the whole range of luminance -related content of the maximum count storable in the raster memory in two regions of the upper and the lower, and a stage of suiting the first decay function for decaying a memory position luminance-related content having a pre-decay value at the upper region and the 2nd function for decaying a memory position luminance-related content having a pre-decay value at the lower region.
Patent KR-20010003990-A (KR)
Inventor: KIM HA SUK
IPC: G02F1/133
Filed: 1999-06-28
Abstract: PURPOSE: A common voltage converting circuit is provided to reduce a cost necessary to fabricate a circuit by realizing the converting circuit by use of a metal oxide semiconductor transistor, a resistor, and a capacitor. CONSTITUTION: The common voltage converting circuit comprises an input part(10) which receives a polarity signal(MPOL). A common voltage output part(30) outputs a common voltage(Vcom) according to the signal output from the input part(10). An amplitude adjusting part(40) adjusts an amplitude of the common voltage(Vcom) output from the common voltage output part(30). A level adjusting part(50) adjusts a level of the common voltage(Vcom).
Patent KR-20010004037-A (KR)
Inventor: JANG SE EOK
IPC: H01L27/08
Filed: 1999-06-28
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to improve reliability by changing an evaporation condition of an oxidation layer for forming a spacer, and to prevent a side wall oxidation of a titanium silicide layer in evaporating the oxidation layer. CONSTITUTION: A semiconductor substrate(51) is prepared which has a hard mask composed of an insulating layer on its upper part, and a gate electrode(500) consisting of a polysilicon layer(53) and a metal silicide layer by intervening a gate oxidation layer(52). The substrate is oxidized by a gate re-oxide process to form a re-oxide layer on a side wall of the gate electrode and on the substrate. An oxidation layer and a nitride layer are sequentially formed on the entire surface. The nitride layer and oxidation layer are blanket-etched to form a spacer on side walls of the gate electrode and hard mask. The re-oxide process is performed at a temperature from 700 to 750 deg. C. The oxidation layer is formed at a temperature scope from 350 to 750 deg. C.
Patent KR-20010005349-A (KR)
Inventor: CHO HUI RAE
IPC: C21B7/18
Filed: 1999-06-30
Abstract: PURPOSE: An apparatus for checking and auto-compensating state of weighing hopper is suggested to check the state of weighing hopper in furnace raw material system installation and automatically compensate deviations. CONSTITUTION: An apparatus used to checking and auto-compensating the weighing hopper for iron ore has a certain form of beam ahead from multiple weighing hoppers and a cylinder (13) having a vertical cylinder rod and laterally moving along the beam. A plurality of electromagnets (11a, 11b, 11c, 11d) are fixed lengthwise to such cylinder rod. Such electromagnets are engaged with several weights having grooves. The apparatus has a control part (25) to enable checking function and auto-compensation based on instruction by operator. Finally, a weighing controller (26) provides compensation values against corresponding weight.
Patent KR-19990073394-A (KR)
Title: 감시시스템및제어방법
Filed: 1999-07-08
Abstract: 본 발명은 사용자가 설치하는 카메라 수에 따라 표시화면을 구성할 수 있음과 동시에 주화면과 부화면으로 구성하여, 하나의 주화면에서는 동영상으로 디스플레이되고, 나머지 부화면에서는 정지 영상으로 디스플레이되면서 저장 및 영상이 보관되며, 사람의 이동이 없는 시간대에 감지 센서를 작동시켜 움직임을 감지하여 알람을 통해 경고를 하므로써 감시의 효율성을 향상시킴과 동시에 고해상도로 검색이 용이하고, 녹화용 테이프의 반복사용에 따른 화질의 저하 및 테이프의 교체에 따른 소모품 비용 발생을 줄일 수 있도록 한 감시시스템에 관한 것이다.
Patent KR-20010010804-A (KR)
Inventor: KIM GYU YEONG
IPC: C02F1/78
Filed: 1999-07-23
Abstract: PURPOSE: Provided is a wastewater treatment apparatus. A mixing chamber (10) installed a mixer (40) having five types impellers (41)(41a)(41b)(41c)(41d), which disperse air bubbles including ozone generated from ozone generator (30), therefore contact time/area of ozone and wastewater increases. In a filtration chamber (20), suspended matters and oxides are removed by a filter (50). CONSTITUTION: The apparatus mainly consists of a mixing chamber (10) equipped with an ozone generator (30) and an aeration pipe (32) generating air bubbles, a filtration chamber (20) equipped with a filter (50) and a mixer (40) having first and fifth impeller (41)(41d) curved downward for raising wastewater, second and forth impeller (41a)(41c) of wave shapes for mixing, third impeller curved upward for increasing retention time as falling wastewater.
Patent KR-20010011009-A (KR)
Inventor: JUNG YEON WON
IPC: C08L23/04
Filed: 1999-07-24
Abstract: PURPOSE: A thermoplastic rubber composition improved in physical properties by minimizing the activity of a chlorine component of final products using hydrotalsite in a dynamic crosslinking process is provided, which can inhibit the generation of fish eye easy to produce on the surface of injection and extrusion products, improve color characteristics by heat resistance and prevent corrosion of equipment. CONSTITUTION: The rubber composition comprises 25 to 75 parts by weight of EPDM rubber, 75 to 25 parts by weight of a thermoplastic olefin, 0.05 to 2.0 phr of hydrotalsite coated with a metal salt based on 100 parts by weight of the rubber, 1.0 to 10 phr of a phenol crosslinking agent, 0.1 to 2 phr of a crosslinking activating accelerator, 0 to 50 phr of a filler and additionally 0 to 150 phr of a filling oil in such a manner that the oil content of the total composition is not over 200 phr based on the EPDM rubber.