baber/WOPTO huggingface dataset:
Patent KR-20010099094-A (KR)
Title: 폐 패각 분쇄물을 이용한 복합 과립 비료의 제조방법
Inventor: CHOI U SIK
IPC: C05G3/00
Filed: 2001-08-29
Abstract: 본 발명은 폐 패각 분쇄물을 이용한 복합 과립 비료의 제조방법에 관한 것이다. 
     우리나라 남해안에서 생산되고 폐기되는 패각은 그 투기되는 양도 많지만 적절히 재활용되는 방안도 없어 그대로 방치되고 있으므로 귀중한 자원 낭비는 물론 그 후처리에 있어서는 적지 않는 비용과 노력이 요구되고 있다. 한편 토양 개선 및 식물 배양을 목적한 석회석 비료는 분말화되고 있어 이를 시비할 때는 바람에 날리는 등 비산에 의한 손실과 이로 인한 환경 오염은 물론 살포 작업 면에 있어 적지 않은 문제로 지적되고 있을 뿐만 아니라 농촌 노동력의 노령화로 인한 이의 대체 방안으로 기계적 대량 시비 시는 과립상의 복합비료가 요구되고 있으나 이에 만족 할만한 과립상의 복합비료는 개발되지 않고 있는 실정이다. 
     본 발명은 이상의 문제점을 해결하고자 발명한 것으로 이의 발명 요지를 과립상의 복합 비료를 제조함에 있어 이의 원료(시료) 구성비는 폐 패각을 소성하여 얻은 폐화석(원조 칼슘)과 축산 폐기물에서 얻어진 뼈를 소성하여 미분쇄한 미분말과 산화마그네슘(MgO) 미분말에 결합제로서 수용성 규산(SiO 2 ) 미분말을 각각 50:18:30:2 %중량비로 조성하여 예비 혼합한 후 이에 물(H 2 O)을 결합제로 적량 투입하여 교반된 것을 과립상으로 조립함에 있어서는 조립 시스템 내에 설치된 교반 날개 및 해쇄 날개의 소정 회전 속도를 설정하여 일정시간 조립한 후 이를 건조 포장함으로서 0.5∼5 mm 경의 복합 과립 비료를 얻을 수 있게 함으로서 이를 기계적 장치에 의해대량 시비 시에는 바람에 의해 비산 손실되는 폐단을 방지할 수 있게 한 것이다.
Patent KR-20030018840-A (KR)
Title: Structure for cooling air supply in refrigerator
Inventor: CHOI YEONG SEOK
IPC: F25D17/08
Filed: 2001-08-31
Abstract: PURPOSE: A structure for supplying chilled air of a refrigerator is provided to rapidly achieve uniform distribution of temperature in a refrigerator compartment. CONSTITUTION: A structure includes a supply duct formed on one side of a rear side of a refrigerator compartment to supply air introduced from a freezer compartment; a ceiling duct formed on a ceiling of the refrigerator compartment frontward from the supply duct; a ceiling discharge port formed on a front end of the ceiling duct to discharge chilled air supplied to a lower side of the refrigerator compartment; a door suction port(24) formed on an upper side of a door(D) of the refrigerator compartment, and connected with the ceiling discharge port when the door is closed to be supplied with chilled air; a door duct(25) formed on an inside of the door downward from the door suction port; and a door discharge port(26) formed on a middle or end part of the door duct to discharge supplied chilled air to the inside of the door. The door discharge port is formed to discharge chilled air toward a door basket(14) installed on the inside of the door.
Patent KR-20030021799-A (KR)
Title: Roller device for Refrigerator
Inventor: JUNG GWAN SIK
IPC: F25D25/00
Filed: 2001-09-07
Abstract: PURPOSE: A roller apparatus of a refrigerator is provided to securely support a roller member used in a refrigerator. CONSTITUTION: An apparatus includes a shaft(50) comprising a main axis inserted and fixed to an inner wall of a refrigerator, a flange(50d) extending from the main axis inward and attached on the inner wall and a support part(50c) extending from the flange inward, all of which are integrally formed; a roller assembly including a roller member(31) and a bush(34) to be installed on the inner wall of the refrigerator and support load; and a screw including a roller support axis(62) to which the roller assembly is inserted to rotate, and coupled to the support part to support the roller assembly.
Patent KR-20030023902-A (KR)
Title: Jaw coupler and method for manufacturing the same
Inventor: JEONG HAENG WOONG
IPC: B22F3/12
Filed: 2001-09-14
Abstract: PURPOSE: A coupler is provided which not only lowers manufacturing cost most appropriately, but also is manufactured simply, and a manufacturing method of the coupler is provided. CONSTITUTION: The coupler comprises a cylindrical body(50) which is formed by cutting processing, and on the upper surface of which a plural mounting holes(52) having circular cross section are formed; inserting fixed parts(72) which are fixed by being inserted into the mounting holes(52) of the body(50), and which have circular cross section; and jaw members(70) which are formed by metal powder molding process, wherein the inserting fixed part(72) of the jaw members(70) is pressed into the mounting holes(52) of the body(50) to be fixed thereinto, pin holes are formed at the eccentric position on the bottom of the mounting holes(52) while rotation preventing pins inserted into the pin holes are integrally formed on the bottom of the inserting fixed part(72), the coupler further comprises pin holes which are vertically penetrated into the inserting fixed part(72) from the eccentric position of the inserting fixed part(72) and formed on the jaw members(70); pin holes that are formed at corresponding positions of the bottom of the mounting holes(52) of the body(50); and rotation preventing pin members penetrating the pin holes respectively, a circular arc shaped protrusion part is formed on the bottom of the jaw members(70), and a circular rotation preventing groove is formed on the upper surface of the body(50) so that the jaw members(70) are prevented from being rotated by inserting the protrusion part into the rotation preventing groove.
Patent KR-20020074373-A (KR)
Inventor: YAGI HIDESHI
IPC: B66B7/06
Filed: 2001-09-18
Abstract: PURPOSE: To reduce weight of cables, and to facilitate processing and installation. CONSTITUTION: On a branch unit 17, a circuit board 31 and board side connectors 32a-32d are provided, and the branch unit 17 is connected to a control panel, and the branch unit 17 to the branch unit 17, by plural vertical cables 18. The number of pins is varied every combination of connection for the board side connectors 32a-32d, connectors 33a and 33b for the vertical cables, and connectors 33c and 33d for the branch cables.
Patent KR-20030028155-A (KR)
Title: Blast furnace bottom part escape gas combustion apparatus
Inventor: CHO JAE HYO
IPC: C21B7/00
Filed: 2001-09-27
Abstract: PURPOSE: An apparatus for burning leakage gas in hearth bottom is provided to prevent environmental pollution and gas poisoning of workers due to gas leakage by collecting gas leaked to the hearth bottom into gas tank and burning the gas as discharging the gas stored in the gas tank to an ignition part. CONSTITUTION: The apparatus for burning leakage gas in hearth bottom comprises a collection pipe(10) which is installed on the lower end part of the metal case and the upper surface of the base so as to collect gas leaked from a gap (t) formed between a metal case(3) encircling the outer wall of blast furnace and a base(1) installed at the hearth bottom, to one side of which an exhaust pipe(12) is connected, and one side of the upper surface of which a gas detector(11) is installed; a gas tank(20) connected to the exhaust pipe(12) to store leakage gas exhausted through the exhaust pipe(12); a burner(30) connected to the gas tank(20) by means of a combustion pipe(31) to burn gas stored in the gas tank(20); an ignition rod(40) installed at one side of the burner(30) to ignite gas; and a control part(50) for controlling the above respective parts, wherein an ignition pipe(32) for supplying a part of gas into the burner to ignite the gas is installed at the combustion pipe(31), and the ignition rod(40) is installed at a cylinder(41) so that the ignition rod(40) is ascended or descended by the cylinder(41) in the burner(30), and wherein a suction pump(21) is installed on the exhaust pipe(12) to generate suction force so that leakage gas is supplied into the gas tank(20).
Patent KR-20030030057-A (KR)
Title: Method of dry etch
Inventor: KIM YEONG JU
IPC: H01L21/3065
Filed: 2001-10-06
Abstract: PURPOSE: A dry etching method is provided to prohibit the generation of polymers due to carbon gas during the etching process of a polysilicon film by using SF6 as a main reaction gas. CONSTITUTION: A polysilicon film is etched by using a mixture of SF6 and Ar as a reaction gas. The content of SF6 in the mixture is in the range of 10sccm-30sccm, and the content of Ar is in the range of 50sccm-100sccm. The internal pressure of the process chamber is kept to be in the range of 3mT-10mT, and the plasma power is kept to be in the range of 250W-1000W. The thickness of the polysilicon layer can be uniformly formed by reducing the amount of SF6 within the mixture or increasing the amount of Ar within the mixture.
Patent KR-20030029310-A (KR)
Title: Method for transporting control information to dsch in a mobile communication system
Inventor: HWANG SEUNG HUN
IPC: H04B7/26
Filed: 2001-10-06
Abstract: PURPOSE: A method of transmitting control information for a downlink shared channel in a mobile communication system is provided to control dedicated channels where the control information is loaded, according to states of the dedicated channels transmitting the control information, thereby enhancing transmissions for an HI(HS-DSCH(HSDPA Downlink Shared Channel) Indicator) and a shared control channel loading the control information. CONSTITUTION: When a mobile station enters a handover region(81), a target base station of handover decides whether to transmit control information on an HS-DSCH with an HSDPA(High Speed Downlink Packet Access) method through dedicated channels(82). If so, the target base station transmits the control information on the HS-DSCH supplied from a current base station of a target mobile station(83). The target base station receives the control information through a control station or the current base station receives the control information, since the control information on the HS-DSCH has to be exchanged.
Patent KR-20020054268-A (KR)
Title: Electrode alloy powder and method of producing the same
Inventor: KAYAMA MIHO
IPC: B22F1/145
Filed: 2001-10-12
Abstract: PURPOSE: Provided are an electrode alloy powder which is less prone to corrosion in an alkaline electrolyte and exhibits a superior electrode activity even at the initial charge/discharge cycles, and a method of producing the same. By using the electrode alloy powder, an alkaline storage battery of excellent self-discharge and high-rate discharge properties and a long cycle life are obtained. CONSTITUTION: The method of producing the electrode alloy powder comprises: a first step of immersing a starting powder comprising a hydrogen storage alloy containing 20 to 70 wt% of Ni in an aqueous solution containing 30 to 80 wt% of sodium hydroxide at a temperature of 90 deg.C or higher and; a second step of washing with water the powder which has been subjected to the first step.
Patent KR-20010106329-A (KR)
Title: 대장균의 아세트산 대사경로를 부분 억제하는 안티센스유전자를 포함하는 벡터 및 전기 벡터로 형질전환된대장균에서의 재조합 단백질 생산 방법
Inventor: CHA HYEONG JUN
IPC: C12N15/54
Filed: 2001-10-17
Abstract: 본 발명은 대장균의 아세트산 대사경로를 부분 억제하는 안티센스 유전자를 포함하는 벡터 및 전기 벡터로 형질전환된 대장균에서의 재조합 단백질 생산 방법에 관한 것으로, 더욱 구체적으로 본 발명은, 아세트산 생성에 관여하는 두 가지 효소인 아세트산 인산화 효소 A(acetate kinase A, ackA) 및 포스포트랜스아세틸라아제(phosphotransacetylase, pta)의 안티센스(antisense) 유전자 발현을 통해 아세트산 대사 효소의 발현을 mRNA 수준에서 부분 억제시키는 벡터 및 이를 이용한 재조합 단백질 생산방법에 관한 것이다. 
     본 발명에 따르면, 재조합 단백질 생산용 대장균을 고농도로 배양할 때 2차 대사산물인 아세트산의 과량 배출로 야기되는 재조합 단백질 생산 저하 및 세포성장 저해 문제를 해결하여 기존의 방법과 달리 재조합 단백질의 종류에 관계없이 고수율로 발현시킬 수 있으며 공정적 접근방식에 의한 고비용의 문제를 근본적으로 해결할 수 있다.  또한, 포도당 배지로 인한 아세트산 배출에 의한 세포 성장 저해 및 단백질 생산성 저하를 해결함으로써 낮은 생산비로 고가의 단백질을 대량생산할 수 있는 경제적 파급효과가 클 것으로 기대된다.
Patent KR-20020059221-A (KR)
Inventor: CHO SANG WON
IPC: B31F1/07
Filed: 2001-11-10
Abstract: PURPOSE: An embossing machine is provided to recycle various papers including waste newspaper as pollutant removal materials or products packing cushion materials, or a material for preventing the sliding of thin metal plates, and to improve the value of product such as invitation cards, packing papers, handbill, and the like by endowing with various patterns thereon. CONSTITUTION: The embossing machine is comprised of four supports(2) formed with an inner guide rail respectively, rollers(10,20) installed on the guide rail so that a distance therebetween is able to be adjusted with a lever(9), and a power transmission device(30), and an input port and an output port located at the front side and the rear side of the rollers. A plurality of embossing bosses(100) are formed on the whole surface of the rollers.
Patent KR-20020037284-A (KR)
Inventor: HARADA TOSHIHARU
IPC: C04B35/468
Filed: 2001-11-12
Abstract: PURPOSE: Provided is a spherical tetragonal barium titanate particles with a perovskite crystal structure. CONSTITUTION: The spherical tetragonal barium titanate particles with a perovskite crystal structure, have an average particle diameter of from 0.05 to 0.5 mu m, a particle size distribution sigma g of not less than 0.70 and a ratio of Ba to Ti of from 0.99:1 to 1.01:1. The particle have a sphericity (maximum diameter/minimum diameter) of from 1.0 to less than 2.0, and have a BET specific surface area value of from 2 to 20 m/g.
Patent KR-20030040587-A (KR)
Title: Method for producing functional polyester fiber
Inventor: BAEK GWANG HYEON
IPC: D01F1/10
Filed: 2001-11-15
Abstract: PURPOSE: A manufacturing method of functional polyester fiber which is characterized by radiating far infrared rays and having excellent storage effect, antibiosis and deodorizing effect is provided. The functional polyester fiber is useful for underclothes, outer garments, socks, stockings and bedclothes. CONSTITUTION: Functional polyester fiber is obtained by the steps of: mixing 0.3-10% of mica such as sericite particles, illite particles or a mixture thereof based on the total weight of a polyester and 5-30% of silver type inorganic antibacterial agent particles based on the mica; grinding the mixture by a water system and an ethylene glycol system sequentially to manufacture an ethylene glycol slurry; and adding the ethylene glycol slurry while polymerizing a polyester.
Patent KR-20030043243-A (KR)
Inventor: LEE DONG HUI
IPC: B60C11/00
Filed: 2001-11-27
Abstract: PURPOSE: A pneumatic radial tire is provided to prevent generation of water screen and to improve operating stability by minimizing change of grounding pressure on a cornering and having a round grounding shape with shortest radius of a second circular arc and longest radius of a third circular arc. CONSTITUTION: Three circular arcs(TW1,TW2,TW3) comprises curvature of a tread(1). A profile of the tread is symmetric before applying pneumatic pressure to a tire. Each length ratio for circular arcs is TW1:TW2:TW3=25¯35:20¯30:40¯50. Each radius(TR1,TR2,TR3) of circular arcs and sectional width is TR1/SW:TR2/SW:TR3/SW=350%¯500%:50%¯150%:100%¯200% at rate. Thereby, change of grounding pressure is minimized by improving three circular arcs comprising a tread profile. Therein, generation of water screen is prevented and operating stability is improved by having round grounding shape.
Patent KR-20030044495-A (KR)
Title: Biochemical fuel cells with installed membrane-electrode assembly
Inventor: HYUN MUN SIK
IPC: H01M8/16
Filed: 2001-11-30
Abstract: PURPOSE: A biological fuel cell using a polymer electrolyte membrane-electrode assembly and a method for using the fuel cell as a biosensor are provided, to reduce the internal resistance of a biological fuel cell, thereby improving the efficiency of a fuel cell and increasing the amount of current generated. CONSTITUTION: The biological fuel cell comprises; a positive electrode; a negative electrode(G); a polymer electrolyte membrane-electrode assembly(C) which has directly combined the positive electrode and the negative electrode with a polymer electrolyte membrane; and a microorganism catalyst adjacent the negative electrode. Preferably the positive electrode uses a platinum-catalyzed electrode, and/or air or pure oxygen is inserted into the positive electrode. The biological fuel cell is used as a biosensor for measuring BOD in an aqueous solution.
Patent KR-20030048666-A (KR)
Title: A drying apparatus using hot blast and microwave
Inventor: KIM HYEON GU
IPC: F26B3/347
Filed: 2001-12-12
Abstract: PURPOSE: A dryer using hot air and microwave is provided to quickly discharge steam in a drying chamber and to dry agricultural products by installing a microwave irradiating unit, a hot air supply unit, and a discharging unit in the drying chamber. CONSTITUTION: A body has a drying chamber. A microwave irradiating unit(9) irradiates microwave into the drying chamber. A hot air supply unit(B) supplies hot air to the drying chamber, and controls the inner temperature of the drying chamber and easily removes steam. A discharging unit(19) discharges the steam from the drying chamber.
Patent KR-20030049782-A (KR)
Title: Method of erasing date from a flash memory cell
Inventor: JUNG JONG BAE
IPC: G11C16/16
Filed: 2001-12-17
Abstract: PURPOSE: A method for erasing data of a flash memory cell is provided to reduce the stress applied to unerased cells by reducing equally the well bias and the word line bias to approach the well bias to a ground voltage. CONSTITUTION: A flash memory cell array of a triple well structure is formed with a structure of NAND array. The structure of NAND array is formed with a plurality of blocks. Data of a flash memory cells(C11-C2n) are erased in block units. In the erasing process, a voltage difference is maintained between triple wells(12,13) and word lines and the well bias applied to the triple wells and the word line bias applied to the word lines are reduced as the predetermined electric potential in order to prevent the stress of the flash memory cells of unerased blocks due to the well bias and erase the flash memory cells of a particular block.
Patent KR-20030054763-A (KR)
Title: Structure for connecting terminal of backlight lamp in liquid cristal display(LCD)
Inventor: KIM BU YEONG
IPC: G02F1/1335
Filed: 2001-12-26
Abstract: PURPOSE: A structure for connecting terminals of a lamp for a back light in a liquid crystal display device is provided to minimize leakage current and prevent wave noise inferiority by electrically connecting an inverter with the lamp without a wire, and improve assembly. CONSTITUTION: A square mold frame(30) is installed at a rear surface of a liquid crystal panel for putting and supporting the liquid crystal panel. A lamp(27) is installed inside one edge of the mold frame and is electrically connected with an external inverter for emitting light. Both end parts of the lamp are combined with terminal pins(50) having end parts exposed to the outside through grooves(35) formed at mold frame parts adjacent to the end parts of the lamp, so that the lamp is connected with terminals of the inverter.
Patent KR-20030054937-A (KR)
Inventor: JUN JAE YEONG
IPC: G02F1/1362
Filed: 2001-12-26
Abstract: PURPOSE: A liquid crystal display device is provided to prevent signal lines from corroding by exposing transparent metal patterns instead of the signal lines when a lower substrate is cut following a section cut line. CONSTITUTION: A plurality of data lines(72) are formed inside a section cut line on a substrate. A shorting bar is formed outside the section cut line to test the data lines. The shorting bar is formed of a first shorting bar(54a) connecting with odd-numbered data lines, and a second shorting bar(54b) connecting with even-numbered data lines. Transparent metal patterns(90) connect the data lines and the shorting bar, crossing the section cut line. A plurality of first contact holes(80a) are formed to connect the shorting bar with the transparent metal patterns. A plurality of second contact holes(80b) are formed to connect the transparent metal patterns with the data lines.
Patent KR-20030057631-A (KR)
Title: Shelf structure and interface matching of data network system
Inventor: KIM TAE WON
IPC: H04L29/10
Filed: 2001-12-29
Abstract: PURPOSE: A shelf structure of a data network system and an interface matching method thereof are provided which processes communication between processors in an internal board through ATM(Asynchronous Transfer Mode) for interface matching with a physical link with other node in a GGSN/PDSN, and performs external matching through a matching board of various physical links including a Gigabit Ethernet. CONSTITUTION: A resource shelf(110) comprises a processor block for external interface, and a processor block for internal interface, and a processor block for PPP(Point-to-Point Protocol) processing, and a processor block for internet processing. And a control shelf(130) controls and manages each processor block in the resource shelf. A communication according to an ATM(Asynchronous Transfer Mode) is performed between processor blocks in the resource shelf and processor blocks in the control shelf.
Patent KR-20030058565-A (KR)
Title: Wireless Protocol Monitor Apparatus and Method in Radio Network Controller
Inventor: AHN JIN SIK
IPC: H04W4/12
Filed: 2001-12-31
Abstract: PURPOSE: A radio protocol monitoring apparatus in a wireless communication control station and its operation method thereof are provided to effectively monitor a protocol message transmitted and received through an Iu interface defined between a wireless network controller and a core network. CONSTITUTION: A monitoring data interface unit(21) receives wireless network protocols to be analyzed from a wireless network controller and concatenate them with the wireless network controller. A protocol discriminator(22) receives plural types of radio protocols from the wireless network controller and discriminate them to upper layer protocols and lower layer protocols by referring to each head part of the protocols. A protocol analyzer(23) analyzes the upper layer protocols and lower layer protocols according to a user's instruction. A protocol analysis result output unit(25) generates an output control signal, determines an output form and a database storage degree according to a user's instruction inputted through an instruction processor(26), and outputs a protocol analysis result. A protocol information storing unit(24) stores the protocol basis information received through the protocol analyzer(23) and performs a high speed data processing. The instruction processor(26) processes an instruction of the user.
Patent KR-20010075709-A (KR)
IPC: G01R31/3183
Filed: 2000-09-08
Abstract: 메모리 어레이(memory array)는 행 자극 시퀀스(row stimuli sequence)를 생성하는 자극 생성 수단과 자극의 시퀀스에 기인한 응답의 시퀀스를 평가하기 위한 응답 평가 수단쌍에 접속함으로써 테스트된다.  비 테스트 조건(non-test condition)에서 수단쌍은 투과 모드(transparent mode)로 되고, 테스트 조건에서 그 수단쌍은 각각 자극 생성 모드와 응답 평가 모드로 되며, 후속하는 수리 조건에서 행 및/혹은 열에 기초한 수리 개입(intervention)은 사전결정된 수리 가능한 각각의 행과 열의 최대수까지 허용된다.  특히, 전술한 테스트 조건에서, 각각의 열에대해 수리 가능한 행의 최대수를 초과하는 오류의 수를 달성할 때까지 그 오류의 수에 대해 계수가 행해지고, 후속하여 그 열은 "수리되어야만 하는 것(must be repaired)"으로서 신호된다. 신호에 대하여, 관련 행 기초 수리 가능성(row-based repairability)에 대해 전술한 신호화된 열 밖의 행에 존재하는 하나 이상의 후속 오류들은 보류된다. 테스트 조건을 종료한 후에, 후속하는 오류의 신호들과 표시(representation)의 출력을 통하여 수리 조건(repair condition)에 전송한다.
Patent KR-20010093258-A (KR)
Title: Cold rolled steel
IPC: B22D11/06
Filed: 2000-01-11
Abstract: A steel strip is produced having a tensile strength of at least 680 MPa but is such that the total elongation to break off of the strip after annealing is in the range 9% to 12%. Cold rolling may produce a cold reduction of the strip thickness in the range 40% to 80%. The continuously cast strip may be optionally in-line hot rolled prior to coiling to produce an initial strip thickness in the range 40% to 60%.
Patent KR-20010110341-A (KR)
IPC: H01L23/14
Filed: 2000-10-26
Abstract: 고전력 애플리케이션에 사용하기 위한 다중 반도체칩 모듈은 전기적으로 전도성인 열 싱크((an electrically conductive heat sink)(20) 상에 직접 탑재되는 전력 반도체칩(30) 및 제어 반도체칩(40)을 적어도 포함한다.   상기 전력 반도체칩은 SOI(a Silicon-On-Insulator) 디바이스일 수 있고 상기 제어 반도체칩은 접지 전위에 접속된 기판을 갖는 반도체 디바이스일 수 있다.   상기 전력 반도체칩 및 제어 반도체칩은, 제조하기에 간단하고 경제적이며 우수한 성능 특성을 제공하는 다중칩 모듈을 얻기 위해서, 별개의 전기 절연층을 사용하지 않고 전기적으로 전도성인 열 싱크 상에 직접 탑재된다.
Patent KR-20010089608-A (KR)
IPC: B01D53/22
Filed: 2000-12-18
Abstract: 본 발명은 PFC가스와 희석가스로 이루어지는 희석혼합가스를 고압으로 한 후, PFC가스보다도 희석가스의 투과율이 높은 막에 접촉시키는 것에 의해 희석가스가 풍부한 투과가스류와 PFC가스가 풍부한 비투과가스류로 분리하고, PFC를 분리 및 회수하는 PFC분리회수방법 및 그것에 이용하는 PFC분리회수장치에 관한 것으로, 본 발명은 상기 비투과가스류를 상기 막과 같은 기능을 가진 다른 막에 접촉시키는 것에 의해 다른 투과가스류와 다른 비투과가스류로 다시 분리한 후, 상기 다른 투과가스류의 압력 또는 유량을 검출하고, 그 압력 또는 유량을 일정하게 하도록 상기 다른 비투과가스류의 유량을 제어하고, 본 발명에 의하면, 처리대상이 되는 희석혼합가스 중의 PFC가스농도에 편차가 있어도 처리후 회수되는 PFC가스농도가 안정되어 있고, 또 본 발명에는 고가의 농도분석계가 불필요한 것을 특징으로 한다.
Patent KR-20020003875-A (KR)
Title: (디)카르복시산의 (디)알킬퍼옥시 에스테르의 제조방법
IPC: C07B61/00
Filed: 2000-05-02
Abstract: 본 발명은 (디)카르복시산 (디)비닐 에스테르를 알킬히드로퍼옥시드와 반응시킴으로써 디(알킬퍼옥시 에스테르)를 제조하는 방법에 관한 것으로서, 염기 촉매가 사용되는 것이 바람직한 반면, 상이동촉매의 사용은 선택적이며, 선택적으로는 하나 또는 그 이상의 용매가 사용되고, 형성된 아세트알데히드는 증류에 의해 퍼에스테르로부터 제거되며, 추가의 화학과정에 사용되는 것을 특징으로 한다.