baber/WOPTO huggingface dataset:
Patent KR-20000024875-A (KR)
Title: Epoxy resin curing catalysts and epoxy resin composition containing them
Inventor: RIN SIEN SING
IPC: C08G59/40
Filed: 1998-10-02
Abstract: PURPOSE: An epoxy resin curing catalysts and an epoxy resin composition comprising specified curing catalysts are provided which have excellent stability at ordinary temperatures and during compounding and give molding compounds a long storage life. CONSTITUTION: Epoxy resin curing catalysts are hydroxyl group-containing carboxyl acid salts of bicyclic amidine. An epoxy resin composition containing specified curing catalysts comprises from 15 to 90% by weight of epoxy resin, from 5 to 80% by weight of curing agent and from 0.2 to 10 weight% of curing catalyst as hydroxyl group-containing carboxyl acid salts of bicyclic amidine. The epoxy molding compound obtained by using the curing catalysts has longer storage life than that obtained by conventional catalysts.
Patent KR-20000012156-A (KR)
Title: Fibrous paper for shielding electromagnetic wave
Inventor: PARK JAE IK
IPC: D06M11/83
Filed: 1998-10-15
Abstract: PURPOSE: A fibrous paper for shielding the electromagnetic wave is provided to absorb or to reflect the bad electromagnetic wave by forming an electromagnetic wave shield layer by a conductive net. CONSTITUTION: The electromagnetic wave is absorbed or reflected in a polyester fibrous paper coated by mixing a pigment resin in a polyester evaporated film, and a conductive net is formed by weaving a conductive metal yarn made by a metal having the excellent efficiency to shield the electromagnetic wave and a conduction to be arranged in a latticed form. The conductive metal yarn is formed by a copper thin sheet or an aluminium thin sheet. The softness and the touch is improved by weaving with the composing interval of the weft and the warp of the conductive metal mold under 1 ¯ 10 cm because of the shield effect of the electromagnetic wave, however, the softness and the touch is remarkably reduced if the composing interval becomes too narrow.
Patent KR-20000026819-A (KR)
Title: Method of manufacturing dual gate oxide layer
Inventor: SONG DU HEON
IPC: H01L21/31
Filed: 1998-10-23
Abstract: PURPOSE: A method of manufacturing a dual gate oxide layer is provided to simplify the manufacturing process and control the boron penetration phenomenon of the thin gate oxide layer. CONSTITUTION: A method of manufacturing a dual gate oxide layer comprises the steps of: evaporating a low-temperature oxynitride layer after defining a region for a thick gate oxide layer(A region) and a region for a thin gate oxide layer(B region) on a semiconductor substrate, and again evaporating a high-temperature low-pressure oxidation layer on the oxynitride layer; forming a photoresist layer on the high-temperature low-pressure oxide layer of the region B and etching the high-temperature low-pressure oxide layer formed on the upper of the region B and the oxynitride layer; eliminating the photoresist layer of the region B and eliminating the exposed high-temperature low-pressure oxide layer; forming a thick gate oxide layer(14) and a thin gate oxide layer(15) by performing a thermal oxidizing process in the regions A and B.
Patent KR-20000027353-A (KR)
Title: Method for controlling parallel address between data memory banks
Inventor: KIM IK KYUN
IPC: G06F12/00
Filed: 1998-10-28
Abstract: PURPOSE: A method for controlling parallel address is provided to generate address for parallel process in state of pipeline through limited memory size capable of loading to chip. CONSTITUTION: A signal processing processor for time varying image with a plurality of DPUs(Data Processing Units) commonly has search area of each DPUs between data memory banks and controls parallel address between data memory banks by means of executing calculation motion vector distance in prescribed method.
Patent KR-20000028116-A (KR)
Title: Display unit for temperature of bake equipment
Inventor: CHOI SEONG JU
IPC: H01L21/00
Filed: 1998-10-30
Abstract: PURPOSE: A display unit for temperature in a baking equipment is provided to display the inner temperature of the baking equipment for a user to check the temperature easily. CONSTITUTION: A display unit of temperature(22) is installed on the front surface of a board(21) installed in the upper part of a loading stand(11) of carrier. And the display unit displays the inner temperature of a baking equipment according to the signal transferred from a displaying mode of temperature in an adjusting unit of temperature. Therefore, a user checks the inner temperature of the baking equipment easily. Herein, the display unit of temperature displays the temperature all the time of operating the baking equipment. And the temperature is displayed in a digital method for the user to check the temperature conveniently.
Patent KR-20000028156-A (KR)
Title: Childlock channel display method for television
Inventor: KIM GWANG CHEOL
IPC: H04N5/445
Filed: 1998-10-30
Abstract: PURPOSE: A child lock channel display method for a television is to easily check television channels that are restricted to children just by simple key operations. CONSTITUTION: A function to display all the child lock channels on a TV screen is used on a TV having a child lock channel mode wherein every adult-oriented channel is automatically skipped when scanning channels. Each current channel to be restricted is set in a child lock mode by the key operation of a user, and the setting is then stored in the selection channel information based on an automatic channel selection function. By using the selection channel information when scrolling through the channel, any restricted channel is skipped and coupled into a next restricted channel which is set and stored in the selection channel information. Using simple key operations of a control device when checking the restricted channels, the selected channel information is searched and only the channels set in the child lock mode are selected and displayed on an OSD(On Screen Display).
Patent KR-19990045106-A (KR)
Title: 디알킬 카르보네이트의 제조 방법
IPC: B01J27/232
Filed: 1998-11-07
Abstract: 알칼리 금속 화합물(예컨대, 포타슘 카르보네이트)의 존재 하에, 디알킬 옥살레이트(예컨대, 디메틸 옥살레이트)를 기상(gaseous phase)에서 탈카르보닐화함으로서 디알킬 카르보네이트(예컨대, 디메틸 카르보네이트)를 높은 수율 및 높은 선택성으로 제조한다.
Patent KR-20000032509-A (KR)
Title: Method for purifying wastewater using aeration
Inventor: KANG DAE KWON
IPC: C02F3/30
Filed: 1998-11-16
Abstract: PURPOSE: A method for purifying waste water by aeration is provided, which is characterized in that aerobic microorganisms and anaerobic microorganisms are multiplied in the same aeration tank. CONSTITUTION: The method is composed of a settling tank (10), a tank (20) for controlling quantity of waste water, an aeration tank (40-42), and a filtration tank (50). The number of aeration tank is 2-4 groups, and the first aeration tank (40) is used for controlling retention time. Contacting materials are filled in the aeration tank, which is made of polypropylene or high-density polyethylene. A post (130) in shape of cylinder, which has a hollow, is installed among the media, and pipes (150) are connected in length and breadth like lattice. The anaerobic microorganisms grow in the inner part (140) of the media, and the aerobic microorganisms grow in the outside of the media.
Patent KR-20000032777-A (KR)
Title: Power line communication system such as road lighting control by fec(forward error correction) method and control method thereof
Inventor: KIM KI JUNG
IPC: H05B37/02
Filed: 1998-11-18
Abstract: PURPOSE: A power line communication system is provided which can transmit/receive data using a power line constructed in a general road or building, therefore it is needless to construct an additional communication line and the construction cost is very low and the reliability as to the performance of a product is further improved by reducing the error rate of transmitted/received data. CONSTITUTION: A power line communication system comprises: a line coupler(1) which transmits/receives data through a power line, comprising a first coil(L1) connected with the power line and a second coil(L2) transmitting or receiving data through the first coil; a current amplification part(2) performing current amplification of the transmitted data and supplying it to the line coupler; a digital modulation part(3) modulating the transmitted data to a high frequency analog signal and outputting it to the current amplification part; a digital demodulation part(4) demodulating the analog data received through the line coupler to a digital signal; a micro controller(5) which encodes data to transmit and supplies the encoded data to the digital modulation part, and recovers by decoding the received data inputted through the digital demodulation part with an FEC method, and controls an object according to the recovered information; a memory(6) where an operation program of the micro controller is stored and which stores the received data inputted from the micro controller; and a power supply part(7) receiving the power flowing in the power line and supplying it as a driving power of each component.
Patent KR-20000033537-A (KR)
Title: Manufacturing method of drinking water using zeolite and poria cocos wolf
Inventor: LEE WON HOE
IPC: C02F1/68
Filed: 1998-11-24
Abstract: PURPOSE: A manufacturing method of drinking water using zeolite and poria cocos wolf is provided, which is characterized in that treated water by the method has excellent efficacy for preventing diseases and medical treating of diseases of adult people. CONSTITUTION: The method comprises following processes. First process is that: zeolite is put in flowing water to remove impurities. 2g of the zeolite is dissolved in 1L of purified water. Second process is that: 0.4L of alcohol and 4g of poria cocos wolf are dissolved in 1L of purified water, then, while a solution is heated at low temperature of 30-40°C for two hours, alcohol is perfectly removed in cooler by extractor. So, only poria cocos wolf is remained in solution. Third process is that: zeolite solution and poria cocos wolf solution is mixed at a rate of 9: 1. Eventually, because prepared drinking water generates a lot of oxygen in internal organs, cells are activated. So various kinds of waste material are removed effectively.
Patent KR-20000038671-A (KR)
Title: Wristwatch-type portable phone
Inventor: OH JONG SEOK
IPC: H04B1/38
Filed: 1998-12-08
Abstract: PURPOSE: A wristwatch-type portable phone is provided to embody a portable phone worn on a wrist in the form of a wristwatch. CONSTITUTION: A wristwatch-type portable phone comprises a portable phone body(1), a screen display part(2), an input button part(3), a receiving part(5), an antenna(6), a coverlet(9), a transparent glass(10), a microphone(4) and a battery(7). The screen display part(2) displays various information such as time, extrinsic service states, phone numbers. The input button part(3) is for the usage of phone number and various function keys. The receiving part(5) conducts a function like the receiver of a telephone. The antenna(6) is mounted on a lateral side of the body(1). The coverlet(9) is connected with the body(1). The transparent glass(10) is provided, so as to make the screen display part(2) shown in case that the coverlet(9) is closed. The microphone(4) is located at the lower part of the coverlet(9). The battery(7) is composed of articulated cells(8) located at the watchband.
Patent KR-19990062948-A (KR)
Title: 반도체 장치의 제조 방법 및 표면 보호용 감압 접착 시트
IPC: H01L21/68
Filed: 1998-12-10
Abstract: 본 발명은 반도체 장치의 제조시, 회로가 형성되고 회로 상에 내식막 재료를 갖는 반도체 웨이퍼의 주표면상에 표면 보호용 감압 접착 시트를 부착시키는 단계, 표면을 보호하면서 웨이퍼의 반대면을 연마한 다음, 감압 접착 시트를 박리시켜 상기 감압 접착 시트에 대한 접착력에 의해 이전되는 내식막 재료를 웨이퍼로부터 제거하는 단계를 포함하는 반도체 장치의 제조 방법에 관한 것이다.  당해 방법은 제조시 작업성을 향성시키고 단계 수를 감소시킴으로써 불량률을 억제하고 반대면 연마시 침투되는 물 때문에 일어나는 다양한 손상을 피할 수 있다.
Patent KR-20000040214-A (KR)
Title: Method of planarizing surface of printed circuit board
Inventor: KWON YEONG SIN
IPC: H05K3/28
Filed: 1998-12-17
Abstract: PURPOSE: A method of planarizing a surface of a printed circuit board is to prevent the generation of an inferior product resulted from the step formation of a circuit wire in a semiconductor package forming process. CONSTITUTION: A method of planarizing a surface of a printed circuit board(112) comprises the steps of: preparing the printed circuit board with a circuit wire(120) formed therein; and forming on the printed circuit board with the circuit board a protective film having a height higher than that of the circuit wire and having a flat upper surface. The protective film is deposited on the printed circuit board by heating and pressurizing a prepreg(100), and the protective film is not formed on a part of the printed circuit board where a semiconductor chip is mounted.
Patent KR-20000041391-A (KR)
Title: Current mirror sense amplifier
Inventor: MUN DAE YOUNG
IPC: G11C7/06
Filed: 1998-12-22
Abstract: PURPOSE: A current mirror sense amplifier is provided to perform a sense amplification operation more stably to a power supply voltage variation, and to improve a voltage gain. CONSTITUTION: A current mirror sense amplifier comprises sense amplification parts(100,200) of a current mirror type, an NMOS transistor(N1) for a current source, a PMOS transistor(P1) for an equalization and control parts(300,400). Each of the sense amplification parts(100,200) senses and amplifies a voltage difference between an input signal(db) and an inverted version of the input signal(dbb). The NMOS transistor(N1) is connected to the sense amplification parts(100,200), and serves as a current source of each of the sense amplification parts(100,200) in response to a sense enable signal(pse). The PMOS transistor(P1) equalizes output terminals(sa2,sa2b) of the sense amplification parts(100,200) in response to the sense enable signal(pse). The control parts(300,400) control the sense amplification parts(100,200) in response to the signals(db,dbb) so as to reduce a current flowing through the NMOS transistor for a current source.
Patent KR-20000043070-A (KR)
Title: Micro processor having variable reset address
Inventor: LEE GANG BOK
IPC: G06F12/02
Filed: 1998-12-28
Abstract: PURPOSE: A micro processor having a variable reset address is provided to shift the reset address by data inputted from an external pin, in reset. CONSTITUTION: A micro processor having a variable reset address comprises a reset controller(1), an address generator(2), memory controller(3), a command register(4), a command executer(5), a data memory(6), and a port circuit(7). The reset controller(1) receives an external reset signal, and synchronizes to a system clock, to output an internal reset signal. The reset controller(1) outputs a PC write signal shifting an address of a program counter in reset, by adding a reset select pin which determines a reset state by an external user. The address generator(2) generates a reset address determined by the output reset signal with a hardware, and determines an address of a next command, not in reset. The address generator(2) is composed of a first program counter(PC), a second program counter(PC2), and a multiplexer(MUX). The memory controller(3) generates a control signal for various memory accesses. The command register(4) stores a command which the micro processor executes. The command executer translates a command and data read from the memory, and executes. The port circuit(7) outputs operated data to an external, or has many ports receiving an external data.
Patent KR-19990063529-A (KR)
Title: 발광 소자 어레이의 구동 장치 및 방법
IPC: B41J2/44
Filed: 1998-12-28
Abstract: 자기-스캐닝 형 발광 소자 어레이의 구동 장치에 있어서, 제1 비트 발광 사이리스터는 확실하게 ON 상태로 세트되고, 이에 따라 제1 비트 발광 사이리스터로부터의 발광 동작의 시프트를 안정화시킨다.  어레이로 배열되어 있는 다수의 발광 사이리스터 및 어레이로 배열되어 있는 다수의 시프트 사이리스터를 갖는 발광 소자 어레이를 구동하는 발광 소자 어레이 구동 장치(시프트 사이리스터의 각각의 게이트는 발광 사이리스터의 각각의 게이트에 연결되어 있음)에 있어서, 상기 장치는 시프트 사이리스터의 ON 상태를 순차적으로 시프트하기 위한 시프트 신호를 생성하기 위한 시프트 신호 생성부, 및 발광 소자 어레이의 구동을 개시하기 위한 개시 신호를 생성하기 위한 개시 신호 생성부를 포함하되, 제1 발광 사이리스터의 게이트 전압은 시프트 신호에 따라 제1 시프트 사이리스터를 ON 상태로 세트하지 않고 개시 신호에 따라 공급된다.
Patent KR-20000043284-A (KR)
Title: Optical pickup actuator having magnetic shaft
Inventor: LEE GEUN JONG
IPC: G11B7/08
Filed: 1998-12-28
Abstract: PURPOSE: An optical pickup actuator having a magnetic shaft is provided to reduce a number of components needed to a driving of a lens holder by driving a coil fixed in the lens holder with polarizing the shaft of the lens holder. CONSTITUTION: A magnetic flux from an N pole of a vertical polarizing unit(144) is entered into an S polar of the vertical polarizing unit via a first and a second focusing coils(130,132). The magnetic flux from an N pole of a horizontal polarizing unit(146) is entered into an S pole of the horizontal polarizing unit via a first and a second tracking coils(134,136). Thereby, a lens holder(110) is driven toward a focusing and a tracking direction. The magnetic shaft(142) functions as a rotational center of the lens holder and as a magnet to drive the first focusing coil and the second tracking coil to drive the lens holder at the same time.
Patent KR-20000043363-A (KR)
Title: Preparation method of precipitated calcium carbonate using waste seashell
Inventor: CHA JUNG WOO
IPC: C01F11/18
Filed: 1998-12-26
Abstract: PURPOSE: A method for preparing precipitated calcium carbonate using waste seashell is provided, to simplify the process. CONSTITUTION: A method comprises the steps of firing waste seashell at the temperature of 825-875°C without pre-pulverizing process; pulverizing the fired seashell; selecting and separating seashell powder less than 40 mesh; hydrating it to convert calcium oxide into calcium hydroxide; reacting it to convert calcium hydroxide into calcium carbonate; filtering it to separate solid precipitated calcium carbonate; and drying and pulverizing it.
Patent KR-20000045074-A (KR)
Title: Method for picking up paper of paper pickup apparatus of printer
Inventor: KIM SEONG
IPC: G03G15/00
Filed: 1998-12-30
Abstract: PURPOSE: A method for picking up papers of a paper pickup apparatus of a printer is provided to prevent a plurality of papers from being picked up at a time. CONSTITUTION: A method for picking up papers of a paper pickup apparatus of a printer includes following steps. At the first step(100), whether a paper pickup signal is input from outside is determined. At the second step(110), the pickup roller is drove so as for the rotation velocity of the pickup roller to be varied according to the preset velocity pattern when the paper pickup signal is input. The pickup roller is drove so as for the rotation velocity deviation to be nonlinear.
Patent KR-19990028870-A (KR)
Title: 키조작 정보의 송신방법과 송신장치 및 송수신 시스템
IPC: G06F3/023
Filed: 1997-05-09
Abstract: IR 키보드(1)는 조작된 키에 대응하는 키코드 정보를 생성하고, 상기 키의 조작상태 정보로서 조작중/조작해제의 구별을 나타내는 브레이크 플래그 정보를 상기 키코드 정보에 부가하여, 각 키조작에 대응하는 상기 키코드 정보가 완결된 것을 나타내는 종단(terminator) 코드 정보를 상기 브레이크 플래그 정보가 부가된 키코드 정보의 마지막에 부가하고, 상기 키코드 정보와 브레이크 플래그 정보와 종단 코드 정보를 발광부(11)에서 적외선 신호로서 전송한다. 수광부(2)는 상기 발광부(11)로부터 적외선 신호를 수신하고 IR 키보드(1)의 키조작 정보를 컴퓨터 시스템(3)에 입력한다. 상기 발광부(11)로부터 전송된 적외선 신호에 포함된 키코드 정보에 부가된 브레이크 플래그 정보가 키 조작중임을 나타내는 상태에서 상기 수광부(2)가 수신신호를 수신하지 못한 경우에, 이 장해 발생 시점에서, 상기 수광부(2)는 계시(time counting)동작을 개시하여 소정시간 내에 수신신호가 얻어지면 수신신호를 연속적으로 수신 한 제어를 행한다.
Patent KR-19990029096-A (KR)
Title: 디젤엔진으로부터의 유해 배출물을 감소시키는 방법
Filed: 1996-07-18
Abstract: 디젤 엔진의 오염 물질의 방출은 기계적인 장치 및 연료 첨가제의 조합에 의해 감소된다.  일련의 구체예중 한 예에서, 디젤 방출물 NO X 및 미립자는 배기 가스 재순환 또는 엔진 가동 시간의 변형을 조합하여 미립자 트랩 및 백금족 금속 촉매 조성물과 함께 사용함으로써 가스성 탄화수소 및 일산화탄소와 동시에 감소된다.  또 다른 구체예에서, 백금 촉매 조성물 및 하나 이상의 보조 촉매 금속의 배합을 포함한 다수 금속 촉매 조성물이 이용되어 디젤 트랩을 포함한 배기 시스템에 촉매 금속을 제공하여, 일산화탄소와 불연소 탄화수소의 방출을 감소시키면서 미립자 트랩의 균형점(트랩 로딩속도와 재생속도가 동일한 온도)을 낮춘다.  백금, 구리 및 세륨 촉매에 대한 데이터가 효과적인 양을 수립했다.  시험은 또한 SO 2 에서 SO 3 로의 적은 산화의 선택적인 지속을 보여준다.
Patent KR-19990067037-A (KR)
Title: 다층 전송포맷의 물리층에 의한 가변길이 버스트 전송
IPC: H04L1/18
Filed: 1996-10-23
Abstract: 본 발명의 장치는 다층 데이터 전송체계의 물리층에 의한 가변길이 버스트로 데이터 패킷을 전송하기 위하여 제공된다.   각 버스트는 정보 데이터(40,50,60,64,74,,78,82) 및 오버헤드(30,32,34,36,38,42,44,62,66,76,80,84)를 포함한다.   상기 오버헤드는 포워드 에러제어(FEC) 데이터(42,62,66,76,80,84)를 포함한다.   다른 버스트 모드(도 2, 3, 4, 5)는 대역폭 효율 및 데이터 전송 견고성이 가능하도록 제공된다.   버스트 모드는 다른 변조의 조합(QPSK 및 16-QAM과 같은), 심볼율, FEC 코딩 레벨 및 프레임과 프리앰블 구조를 제공한다.   본 장치는 하이브리드 파이버 동축케이블 텔레비젼 시설에 의한 업스트림 전송에 이용하는데 특히 적합하다.
Patent KR-20000064315-A (KR)
Title: 액정표시패널의 검사장치, 액정표시패널의 검사방법 및 액정패널의 제조방법
IPC: G01R1/073
Filed: 1997-09-02
Abstract: 액정표시패널의 검사장치에 있어서, IC 칩의 실장 전에 거의 완전한 패널검사를 할 수 있는 동시에, 외부 단자 위의 배선 패턴의 검사도 동시에 할 수가 있는 신규의 구성을 제공하는 것이다. 
     유지판(40)의 선단에는 급기공(40a)과 광구 개구부(40b)가 설치되고, 광구 개구부(40b)를 밀폐하도록 탄성시트(42)가 설치된다.  탄성시트(42)의 외면 위에는 IC 칩 A이 접착 고정된다.  유지판(40)의 아래면에는 플렉시블 회로 기판(43)이 접착 고정되고, 플렉시블 회로 기판(43)에는 배선 패턴(43a)이 설치된다.  배선 패턴(43a)의 선단부는 접속 단자부(43b)로 되어 있고, 접속 단자부(43b)에는 도전성 와이어(44)의 일단이 본딩되고, 타단은 접촉 단자(45)에 본딩된다.  접속 단자부(43b)와 도전성 와이어(44)를 몰드하는 몰드체(46)가 형성되어 있다.
Patent KR-20000064323-A (KR)
Title: 범용 직렬 버스 인터페이스 방식의 동영상 카메라
IPC: H04N7/15
Filed: 1997-08-28
Abstract: 처리 시스템의 하우징 외측에 외부 커넥터(154)를 통해서 처리 시스템(120,120')에 연결될 수 있는 카메라(110,110')가 제공된다. 카메라(110,110')는 카메라 하우징(100)을 포함한다. 이미지 장치(111)가 동영상을 비디오 신호로 변환하는 카메라 하우징(100) 내측에 제공된다. 또한 비트율 축소 회로(115)가 카메라 하우징(100) 내측에 제공되는 동시에, 이미지 장치(111)에 연결된다. 비트율 축소 회로(115)는 비트율 축소 전에 비디오 신호보다 작은 대역폭을 갖는 비트율이 축소된 비디오 신호를 제공하기 위해 동영상의 비트율을 축소한다.
Patent KR-19990072147-A (KR)
IPC: G01N33/00
Filed: 1996-12-12
Abstract: PCT No. PCT/GB96/03064 Sec. 371 Date Sep. 17, 1998 Sec. 102(e) Date Sep. 17, 1998 PCT Filed Dec. 12, 1996 PCT Pub. No. WO97/21999 PCT Pub. Date Jun. 19, 1997A method and apparatus for measuring ethanol vapor concentration wherein a cell output is plotted with respect to time. The gradient of the steady rate portion of the plot is determined and an ethanol vapor concentration signal is generated from the determined gradient.
Patent KR-20000064440-A (KR)
Title: 개선된비스페놀제조법
IPC: C07C37/68
Filed: 1996-12-18
Abstract: 비스페놀의 생성을 위한 개선 방법은 산성 양이온 교환 수지 및 메르캅탄 보조 촉매의 존재하에 케톤과 페놀의 반응으로 표현된다.   반응 이전에, 알킬 알콜은 케톤 스트림에서 제거된다.   촉매로부터 디설파이드 이온과 같은 보조 촉매 유도체를 제거하여 촉매독의 가능성을 감소시키기 위해 보조 촉매는 반응기에서 제거된다.
Patent KR-20000064477-A (KR)
Title: 라미네이트의제조방법
IPC: C09J151/06
Filed: 1996-12-18
Abstract: 본 발명은 제 1 기재(I), 및 에틸렌 또는 프로필렌 중합체를 포함하고 중합성 접착제에 의해 제 1 기재에 결합되는 제 2 기재(II)를 포함하는 라미네이트의 제조 방법으로, A) 유기 용매, 및 불포화 카복실산 또는 이의 무수물, 에스테르, 아미드, 이미드 또는 금속 염이 그래프트된 에틸렌 또는 프로필렌 중합체를 포함한 하도제를 상기 제 1 기재(I)에 도포하는 단계; 및 B) 에틸렌 또는 프로필렌 중합체 및 선택적인 첨가제를 상기 하도된 기재(I)상으로 사출 성형하는 단계를 포함하는 방법에 관한 것이다.
Patent KR-20000005172-A (KR)
Title: Tape cast silicon carbide dummy wafer
Inventor: HOLMES THOMAS M
IPC: C04B35/573
Filed: 1997-03-31
Abstract: PURPOSE: The aim is to provide an inexpensive silicon carbide dummy wafer which possesses the dimensional, physical and mechanical properties required for use in applications with temperatures less than about 1000°C. CONSTITUTION: A process for making a thin, crack-free green silicon carbide sheet comprises the steps of:a) forming a slip comprising a liquid carrier and a ceramic powder consisting essentially of silicon carbide; b) tape casting the slip to produce a wet green sheet having a thickness of between 0.6 and 1.2 mm; c) evaporating essentially all the liquid carrier from the wet green sheet to produce a dry green sheet having a thickness which is at least 80 % of the wet green sheet thickness; d) forming a shape from the dried green sheet to produce a silicon carbide green wafer; e) recrystallizing the silicon carbide green wafer to produce a recrystallized silicon carbide wafer having a thickness of 0.5 to 1.0 mm and flatness of less than 130 micrometer and, optionally f) grinding the silicon carbide wafer to reduce its thickness by no more than 5 %.