baber/WOPTO huggingface dataset:
Patent KR-20030050694-A (KR)
Title: method for fabricating of semiconductor device
Inventor: HAN DONG WON
IPC: H01L21/02
Filed: 2001-12-19
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of preventing problems due to the failure of gap-fill while increasing capacitance by using an inorganic insulating layer made of FOX(Flowable OXide) material. CONSTITUTION: After sequentially forming the first interlayer dielectric(21), a barrier insulating layer(22), and the second interlayer dielectric(23) on a substrate, the second interlayer dielectric is selectively etched for exposing the barrier insulating layer. After forming a semiconductor layer on the entire surface of the resultant structure, the semiconductor layer is transformed into a demi-spherical semiconductor layer(25) by carrying out a heat treatment. Then, an inorganic insulating layer(26) is deposited on the resultant structure. A hardened inorganic insulating layer(26a) is formed by annealing the upper portion of the inorganic insulating layer.
Patent KR-20030052824-A (KR)
Title: A wafer guide device of bake oven in the lithography process
Inventor: BAEK SEUNG WON
IPC: H01L21/027
Filed: 2001-12-21
Abstract: PURPOSE: A wafer guide apparatus of a semiconductor bake oven is provided to be capable of improving the uniformity of a wafer and preventing the collision between the wafer and a robot arm by using a wafer guide and a vacuum chuck capable of moving up and down. CONSTITUTION: A semiconductor wafer(14) is loaded on a heating plate(10). A vacuum chuck(34) capable of moving the semiconductor wafer(14) up and down, is installed and connected with the heating plate(10), wherein the vacuum chuck(34) includes a loading pedestal(32). A plurality of wafer guides(38) are installed at both sides of the vacuum chuck(34) on the heating plate(10) for guiding the semiconductor wafer(14) by contacting the semiconductor wafer(14).
Patent KR-20030053189-A (KR)
Title: Hot water and floor heating device of geothermal cooling and heating system
Inventor: SIM DU BO
IPC: F24J3/08
Filed: 2001-12-22
Abstract: PURPOSE: A hot water generating and floor heating apparatus is provided to achieve maximized efficiency of energy utilization by generating hot water without using an additional heating source. CONSTITUTION: A cooling operation is performed in that the first refrigerant compressed by a compressor(1) is condensed in the second heat exchanger unit(5) by using the second refrigerant circulating through a geothermal heat exchange line(6) buried into the ground, and heat-exchanged in the first heat exchanger unit(3) while passing through an expansion valve(4) and the first heat exchanger unit. A heating operation is performed in that the first refrigerant compressed by the compressor is heat-exchanged in the first heat exchanger unit, and the first refrigerant whose temperature is lowered by the heat exchange operation in the first heat exchanger is heat-exchanged with the second refrigerant in the second heat exchanger unit and re-supplied to the compressor. A hot water heat exchanger unit(10) raises the temperature of the water flowing through a hot water circulation line(11), by using the high temperature of the first refrigerant flowing through a refrigerant circulation line(8) arranged in the outlet side of the compressor.
Patent KR-20030053662-A (KR)
Title: Traction linking apparatus between electromotive car and quenching car for transportation of the dried coke
Inventor: LEE IN YUN
IPC: C10B39/14
Filed: 2001-12-22
Abstract: PURPOSE: A traction linking apparatus is provided which is formed of a rubber spring to fundamentally prevent gap from being generated between composing elements by always closely adhering a space between the composing members using elastic force of the rubber spring during running process of the apparatus. CONSTITUTION: The traction linking apparatus between electric rail car and quenching car for transportation of coke includes a connection base(10a) fixed to the rear part of the electric rail car by bolt and connection base(10b) fixed to the front part of the quenching car by bolt with being spaced apart from each other in a certain distance; a central rubber spring(50) installed between the connection bases(10a,10b); rubber springs(40a,40b) respectively installed at the inner side of the both connection bases(10a,10b); a traction bar(60) for connecting the rubber springs(40a,40b) to the both connection bases(10a,10b) through the central rubber spring(50); semispherical bushes(20a,20b) inserted into both ends of the traction bar(60); and bush sheets(30a,30b) for the semispherical bushes(20a,20b) correspondingly contacted with the rubber springs(40a,40b) inside the both connection bases(10a,10b).
Patent KR-20030053843-A (KR)
Inventor: BAE HO MUN
IPC: B21B38/00
Filed: 2001-12-24
Abstract: PURPOSE: A pin-hole detector having an edge filter is provided to detect a hole or a pin-hole formed at an edge of a steel strip by using the edge filter. CONSTITUTION: A pin-hole detector includes a light source for radiating light towards a steel strip to be inspected. A detecting sensor is aligned in opposition to the light source about the steel strip in order to detect light, which passes through a hole or a pin hole of the steel strip. A processor is provided to process data measured by the detecting sensor, thereby calculating positions of the hole or the pin hole. An edge filter(19) is provided at an edge portion of the steel strip. The edge filter(19) reduces intensity of signal measured by the detecting sensor in order to detect the hole or the pin-hole of the steel strip.
Patent KR-20030054704-A (KR)
Title: Device for Offering Compatibility in Gateway System basing on MGCP
Inventor: KIM HYEON GYU
IPC: H04L12/66
Filed: 2001-12-26
Abstract: PURPOSE: A compatible device in an MGCP(Media Gateway Control Protocol)-based gateway system is provided to support compatibility for various MGCs, so as to implement a gateway independent of message flow of MGC characteristics and independent of a message encoding method of the MGC characteristics. CONSTITUTION: An MGCP stack(21) processes MGCP commands. An event handler(22) arbitrates delivery of an event or a signal between a CMP(Central Management Process) and an MG(Media Gateway). An endpoint manager(23) maintains a state machine of an MG, and changes the state according to MGCP messages delivered from MGCs. Also, the endpoint manager(23) decides whether to deliver an event or a signal for an endpoint centered on a corresponding state. A message encoder(24) is a module that processes a message encoding system. The endpoint manager(23) is implemented within a range of maintaining MGCP characteristics of semantic. And the message encoding is defined for setting of the encoding system in a gateway system.
Patent KR-20030055520-A (KR)
Title: Method for manufacturing high Si added high carbon wire rod by forming decarburinized ferritic layer
Inventor: CHOI HAE CHANG
IPC: C21D8/06
Filed: 2001-12-27
Abstract: PURPOSE: A method for manufacturing high Si added high carbon wire rod for bolt by forming decarburized ferritic layer is provided. CONSTITUTION: The method includes the steps of heating a steel billet comprising C 0.65 to 1.50 wt.%, Si 2.0 to 4.0 wt.%, Mn 0.1 to 0.8 wt.%, 0.01 wt.% or less of P and S, N 0.002 to 0.01 wt.%, 0.002 wt.% or less of O, one or more than two elements selected from the group consisting of Ni 0.3 to 2.0 wt.%, B 0.001 to 0.003 wt.%, V 0.01 to 0.5 wt.%, Nb 0.01 to 0.5 wt.%, Mo 0.01 to 0.5 wt.%, Ti 0.01 to 0.2 wt.%, W 0.01 to 0.5 wt.% and Cu 0.01 to 0.2 wt.%, a balance of Fe and incidental impurities up to Ac1 transformation temperature at a rate of 20±5°C/min; heating the steel billet from the Ac1 transformation temperature to Acm transformation temperature at a rate of 4±2°C/min; heating the steel billet up to 1050±100°C at a rate of 15±5°C/min and holding for more than 30 min; and hot rolling the steel billet to wire rod.
Patent KR-20030057741-A (KR)
Title: Method for performance measure of special system and management of special process in remote site
Inventor: KIM YEONG JIN
IPC: G06F15/16
Filed: 2001-12-29
Abstract: PURPOSE: A method for measuring the system performance and managing a process in a remote place is provided to reduce the port use of a server and to obtain the information by decreasing the load of the corresponding system maximally during measuring the system performance and monitoring the process. CONSTITUTION: The allocated port number is initialized to zero if a server program is started(ST11). After the initialization, a socket file descriptor is set by using a socket function(ST12). The socket file descriptor is joined to the system port by using a binding function(ST13). A listen state is waited until an external connection is entered from the outside by using a listen function(ST14). The connection from the outside is checked at a wait state(ST15). If the connection from the outside exists, the number of the allocated port is confirmed(ST16). If the number is zero, a new port is allocated by using an accept function, and the information is transmitted to the new port(ST17). If the number is not zero, the information is transmitted by using the previously used port(ST18).
Patent KR-20030059364-A (KR)
Title: Method for limiting seeing and hearing
Inventor: KIM EUN MI
IPC: H04N5/445
Filed: 2001-12-29
Abstract: PURPOSE: A method for restraining watching is provided to restrain under-aged people from watching violent or obscene contents by setting sections for restraining the watching when recording contents by setting a secret code in a predetermined area of the contents. CONSTITUTION: A method for restraining watching includes the steps of recording preliminary areas of predetermined streams of contents by setting a secret code from a menu for restraining the watching of contents and storing the contents to an optical recording medium(200-203), and reproducing the stored contents if the recorded secret code is a newly input secret code(206,207).
Patent KR-20030058074-A (KR)
Inventor: HWANG SEUNG WON
IPC: G02F1/13
Filed: 2001-12-29
Abstract: PURPOSE: A liquid crystal display system is provided to form coupling parts without any limitation of place by forming the coupling parts outside a liquid crystal module, thereby realizing a slim LC module and preventing the damage of the liquid crystal panel by impurities. CONSTITUTION: A liquid crystal display system includes a rear cover(200) formed with coupling bosses(220) on an inner surface, a liquid crystal module(100) mounted to the inner surface of the rear cover and formed with a plurality of protruded structures(120) at both side surfaces, brackets(300) coupled with the liquid crystal module by grooves(320) which receives the protruded structures of the liquid crystal module and formed with holes(340) at positions corresponding to the coupling bosses of the rear cover, and fixing elements(400) to be inserted into the holes of the brackets and the bosses of the rear cover.
Patent KR-20010074961-A (KR)
IPC: B64D45/00
Filed: 1999-09-03
Abstract: A thin flat panel display for aircraft cockpits. These displays use a dual CPU/graphics generator system to produce simulated aircraft instrumentation displays which are color coded to indicate when one of the graphic generators has not correctly received data from the aircraft system bus. The displays use standard graphic generators and CPUs, and do not require additional software. The displays also allow the aircraft systems to be continuously tested while the aircraft is on the ground. Moreover, the inventive systems include input touch devices which access external memories to display necessary flight and landing information which allow the cockpit crew to expand in detail the external information for display on the flat panels.
Patent KR-20010080285-A (KR)
IPC: H01L29/12
Filed: 1999-10-15
Abstract: 본 발명은 전류를 스위칭하기 위하여 여러 가지 형태로 사용될 수 있는 반도체 스위치에 관한 것이다.  상기 스위치는, 예를 들어 전압 레벨이 수천 볼트 이상의 역전압이나 블로킹 전압을 이루는 임의의 회로(I 컨버터, 매트릭스 컨버터)에서 사용된다.  본 발명의 목적은 복수의 부품들로 구성된 복잡한 형태의 구조를 피할 수 있는 단일 스위치를 제조하고자 하는 것이며, 또한 정전력 및 역전력 손실을 감소시키고자 하는 것이다.   본 발명에 따라서, 반도체 스위치는 도핑되지 않거나 약간 도핑되어 있는 반도체 결정으로 제조되며 이 반도체 결정은 활성 영역(1)과 에지 영역(50, 51)을 갖는다.  반도체 스위치의 활성 영역(1)에서 대향 설치면들 중 적어도 한쪽 면, 특히 양쪽 면들에는 넓은 영역에 걸쳐서 분포되며 매우 동일하게 구성된 미세 구조물(10, 11, 12, 13, 14)들이 제공되고, 이로 인하여 상기 미세 구조물들의 각각은 전도성 접속면 KA, KB를 갖는데, 이 전도성 접속면에 의해서 하전 캐리어가 조절될 수 있을 뿐만 아니라 상기 미세 구조물 GA, GB를 거쳐서 반도체 결정의 활성 영역(1)으로 전도될 수 있다.  따라서, 상술한 방식을 통하여 활성 영역(1)에서 하전 캐리어의 농도를 조절할 수 있을 뿐만 아니라 이로 인하여 반도체 스위치의 접속 상태도 조절할 수 있다.
Patent KR-20020012533-A (KR)
IPC: A61F2/90
Filed: 1999-04-30
Abstract: 본 발명의 팽창가능한 스텐트는 관강의 개방을 유지하기 위해 혈관이나 다른 신체내의 관강내에 이식가능하도록 되어 있는 바, 이 스텐트는 다수개의 상호연결된 스텐트모듈로 이루어지고, 각각의 스텐트모듈은 모듈의 직경방향으로 반대되는 면들에 위치된 제 1연결부와 제 2연결부에 의해 함께 결합되는 제 1분할부와 제 2분할부를 포함한다. 제 1분할부와 제 2분할부는 사인곡선 형태로 형성되고, 평평한 형태와 팽창된 형태 사이에서 이동가능하며, 스텐트모듈들은 인접한 모듈들의 연결부들 사이로 뻗는 상호연결부재들과 공통의 길이방향축을 따라 결합되는 바, 이러한 정렬은 추가적인 길이방향 유연성 뿐만 아니라 방사상의 안정성을 갖는 스텐트를 제공하며, 모듈들은 실질적으로 동일한 길이를 갖는 같은 수의 와이어가닥들로 된 저렴한 장비를 이용하는 자동화된 제조방법으로 제조될 수 있다. 본 발명의 다른 실시예에서, 이식재료는 목표로 하는 손상지점에 약품을 이송하는 스텐트의 와이어벽 부분들 사이에 고정될 수 있다.
Patent KR-20010101030-A (KR)
Title: Antibacterial medicinal compositions
IPC: A61K9/20
Filed: 2000-09-18
Abstract: A technique for realizing the wide application of penem compounds as pharmaceutical antibacterial compositions is disclosed. The composition contains a penem compound as an active ingredient characterized in that it contains an  alpha , omega -diamineacetate compound.
Patent KR-20010080733-A (KR)
Title: Ｂｉ 알콕시화물을 사용하여 강유전체 박막을 준비하는 저온 ＣＶＤ 방법
IPC: C23C16/40
Filed: 1999-12-06
Abstract: 화학 증착은 기판의 표면 상에 Bi 산화물, Sr 산화물, 및 Ta 산화물 전구체를 분해함으로써 가열된 기판 상에 Bi 산화물, Sr 산화물, 및 Ta 산화물 박막을 형성하는데 사용된다.  Bi 산화물 전구체는 하나 이상의 알콕사이드기를 포함하는 Bi 복합체이며 450℃ 이하의 온도에서 분해되고 증착된다.  저온 CVD에 의해 얻어진 Bi, S, 및 Ta 산화물 박막은 주로 비강유전성이지만, 연속적인 열처리에 의해 강유전성으로 전환될 수 있다.
Patent KR-20010101413-A (KR)
IPC: H03L3/00
Filed: 1999-12-30
Abstract: 본 발명은 사인파 출력 신호를 발생시키고 발진기를 포함하는 장치에 관한 것이다. 발진기는 장치 공급 전압 중 하나를 각각 접속시키기도 하고 접속시키지 않기도 하는 수단을 포함하여, 상기 공급 전압을 접속시킬 때 사인파 출력 신호의 1 내지 5 주기 간격에 대응하는 시간 주기 후에 사인파 출력 신호는 안정된다. 또한, 본 발명은 사인파 출력 신호를 고속으로 시동시키는 방법에 관한 것이다.
Patent KR-20020012539-A (KR)
IPC: G06F11/00
Filed: 2000-02-08
Abstract: Method of dynamically sharing management of a redundancy group (40) in a data storage system between two or more array management functions (AMFs) (80), wherein the AMFs (80) are able to concurrently access the redundancy group (40), the redundancy group (40) including a plurality of resources, the method comprising the steps of: 
determining an arbiter AMF for a first one of the resources, wherein the arbiter AMF is one of the two or more AMFs sharing management of the redundancy group (40), and wherein the arbiter AMF is able to grant a lock for the first resource; 
communicating a lock request from a first one of the AMFs to the arbiter AMF requesting a lock on the first resource; and 
performing an operation on the first resource by the first AMF once the lock on the first resource has been granted by the arbiter AMF;  characterized in that the step of determining the arbiter AMF includes assigning the AMF that last had a write lock on the first resource to be the arbiter AMF.
Patent KR-20010112403-A (KR)
IPC: C08F4/02
Filed: 2000-02-25
Abstract: 본 발명은 중성의 다가 아자시클릭 리간드, 및 이들과 3-10 족 및 란타나이드 금속과의 착물에 관한 것이다.  이 리간드는 식 R a -A-(L) b 으로, 상기 식 중 R은 수소 또는 히드로카빌이고, A는 규소, 게르마늄, 주석 또는 납이며, 각 L은 피라졸릴, 트리아졸릴 또는 테트라아졸릴 기이고, a = 0 내지 2, b = 2 내지 4, a+b = 4이다.  통상의 활성체로 활성화되는 경우, 상기 금속 착물은 올레핀을 중합시킨다.
Patent KR-20020070087-A (KR)
IPC: H04L29/06
Filed: 2000-11-22
Abstract: 전자 네트워크(110) 상에서 장치 사이에 연속적 대화형 통신을 제공하는 방법과 시스템을 개시한다.  서버 응용 프로그램과 클라이언트 장치(164) 사이에 영구적 대칭성 전용 연결이 제공된다.  그러므로, 클라이언트와 서버는 모두 양방향으로 통신할 수 있다.  클라이언트가 오프라인이거나 달리 연락 가능하지 않은 동안 메시지의 저장을 허용하는 메시지 기억 장치(166, 178)가 제공된다.  이 방법과 시스템은 전자 네트워크 상의 어떠한 주소 지정이 가능한 장치(164, 174)에서도 작동이 가능하다.  본 발명은 종래기술의 전자 네트워크 통신 방법들의 대체안으로 또는 이들과 병행하여 사용될 수 있다.  본 발명에서는 고급 메시지 라우팅 시스템이 구현된다.  이러한 메시지 라우팅 시스템 위에 기본 기능의 세트가 구축된다.  본 발명에 따른 통신 방법과 시스템에서는 그래픽 사용자 인터페이스를 사용하여 전자 네트워크와의 대화에 사용되는 응용 프로그램들을 실제로 표시한다.  이러한 그래픽 표현(276)은 전자 네트워크에 걸친 메시지의 원활한 전송과 수령을 위해 사용된다.  본 발명에 따른 응용 프로그램은 파워와 특이성이 증가하는 순서에 따라 여러가지 그룹으로 분류된다.  인터페이스(384, 472)는 또한 통신 시스템의 기반 대화형 연결을 아이콘으로 표시하기 위해 제공된다.  본 발명은 메시지의 양방향 공시와 수신을 위한 일대일(one-to-one) 연결 및 일대다(one-to-many) 연결을 제공한다.  이 인터페이스를 사용하는 어떠한 유형의 집중된 기능성이라도 전송할 수 있다.
Patent KR-20020012282-A (KR)
Title: Method for connection establishment in a radio system relaying packet-switched traffic
IPC: H04L12/28
Filed: 2000-06-20
Abstract: The invention relates to a method for connection establishment and a radio system relaying packet traffic, in which system a terminal (402) is arranged to inform (700) the system network part (400) that it wishes to transmit data to the network part; the network part (400) is arranged to receive the message and to allocate a default amount of radio resources to the terminal; the network part (400) is arranged to inform (702) the allocated resources to the terminal; the terminal (402) is arranged to send a first control message (710) to inform the terminal's radio path characteristics to the network part. According to the solution of the invention, when the network part (400) allocates the default amount of radio resources to the terminal (402), the network part is arranged to reserve one or more radio blocks for the terminal's control messages. When the terminal (402) sends the network part information about its radio path characteristics, the terminal is arranged to inform in the message if there are additional characteristics. In that case, the terminal sends a second control message (712) comprising information about its radio path characteristics.
Patent KR-20020064656-A (KR)
Inventor: SHIOHARA AKIRA
IPC: B65G47/68
Filed: 2002-01-07
Abstract: PURPOSE: To provide a commodity merging control method for improving merging efficiency and working efficiency by reducing an empty space on a main carriage line. CONSTITUTION: When an empty space (a picking space s) having a predetermined length or more between lots of commodities 1 being carried or between the commodities 1 is detected on a main line 2, the detected empty space is reserved in an arrival line 3 where the commodities accumulate. When the empty space comes close to a merging point of the reserved arrival line 3, the accumulated commodities 1 corresponding to the length of the reserved empty space are picked out from the arrival line 3 to the main line 2. In this method, the empty space on the main line 2 where the commodities 1 are not carried is reduced to improve merging efficiency, and the accumulated commodities 1 on the side of the arrival line 3 are reduced and a waiting time for charging work is reduced to improve the efficiency of charging the commodities 1.
Patent KR-20030060562-A (KR)
Title: one body tube flange
Inventor: KANG SUOK JA
IPC: F16L23/00
Filed: 2002-01-09
Abstract: PURPOSE: An integrated flange pipe is provided to prevent a water leakage by integrally forming a flange at one end of a pipe and keeping the watertightness of the pipe. CONSTITUTION: A plurality of bolt holes(3) are formed at the outer circumference of a body(2). A flange(1) is integrally formed at one end of a pipe(4). A groove(6) is formed at the outer circumference of an inlet(5) in the flange. A watertight packing(7) has a plurality of protrusions(7'), and is fit into the groove.
Patent KR-20030061632-A (KR)
Title: System Of Diaphragm Pump
Inventor: JUNG DONG KWAN
IPC: F04B43/02
Filed: 2002-01-15
Abstract: PURPOSE: An operating system of a diaphragm pump is provided to allow precise dispense under bad conditions. CONSTITUTION: A system comprises the steps of: a suction step in which a suction valve(40) is opened by operation of a controller, and a piston(30) is moved back by rotation of a stepping motor to transform a diaphragm(22) so that photochemical in a container is introduced through a suction line and the suction valve into a pump chamber by negative force of the pump chamber; a purge step in which the piston is stopped and the suction valve is closed as the suction step is completed, and a purge valve(50) is simultaneously opened to primarily remove bubble introduced through the suction line or formed by cavitation and to discharge the bubble through a purge line to the container; a dispense step in which a discharge valve(42) is opened by outside signal as soon as the purge step is completed so that photochemical is dispensed through a discharge line; a vent process step collecting bubble generated due to difference of pressure as an inline filter installed on the discharge line is moving along the discharge line, or inevitably introduced as the container or the inline filter is replaced, and discharging the bubble to the outside; and a preparation step closing the suction valve, the discharge valve and the purge valve as the suction step is completed, keeping pressure of fluid in the pump chamber and the inline filter, and awaiting next input of dispense signal.
Patent KR-20030062468-A (KR)
Title: Distributed constant type filter and Method for the same
Inventor: LEE CHUNG GUK
IPC: H01F27/00
Filed: 2002-01-17
Abstract: PURPOSE: A distributed constant filter and a manufacturing method thereof are provided to increase the capacitance and inductance per unit area by forming a long-length pattern and increasing a crossing area. CONSTITUTION: Signal line coil patterns(311,321,331,341,351) of a laminated body(35) start from a first edge, are extended along neighbored sides(35a,35b), and end at an opposite second edge. A signal line coil pattern(341) of a neighbored laminated body(34) starts from the second edge, is extended along the neighbored sides(34a,34b), and ends at the first edge. A most upper laminated body(36) is provided with fetch patterns(361,362) connected to the signal line coil pattern(351) and a ground line coil pattern(352). A most lower body(30) is provided with fetch patterns(301,302) connected to the signal line coil pattern(311) and a ground line coil pattern(312).
Patent KR-20020062846-A (KR)
Title: Process for producing cyclopropanecarboxylates
Inventor: IWAKURA KAZUNORI
IPC: C07C67/08
Filed: 2002-01-24
Abstract: PURPOSE: Provided is a process for conveniently producing cyclopropanecarboxylates through dehydration reaction from a cyclopropanecarboxylic acid and an alcohol in the presence of the catalyst. CONSTITUTION: The process for producing a cyclopropanecarboxylate of formula (1) comprises reacting a cyclopropanecarboxylic acid of formula (2) with a monohydroxy compound of formula (3): R6OH, in the presence of a compound comprising an element of Group 4 of the Periodic Table of Elements. In formula (1) and (2), R1, R2, R3, R4, and R5 independently represent a hydrogen atom, a halogen atom, an alkyl group which may be substituted, an alkenyl group which may be substituted, an alkynyl group which may be substituted, an aryl group which may be substituted. In formula (3), R6 represents an alkyl group which may be substituted, or an aryl group which may be substituted.
Patent KR-20030063929-A (KR)
Title: Preparation method of alkylpolyglycosides and reactor used for the prepartion method
Inventor: CHO DONG HYEON
IPC: C07H1/06
Filed: 2002-01-24
Abstract: PURPOSE: A preparation method of alkylpolyglycosides and a reactor used for the preparation method are provided, thereby cheaply preparing alkylpolyglycosides(APG) having improved color, transparency and storage. CONSTITUTION: A preparation method of alkylpolyglycosides comprises the steps of: reacting C8-C22 higher lipid alcohol with glucose to prepare an APG containing solution; first distilling the APG containing solution at 95 to 150 deg. C and 2 to 20 torr; and second distilling the APG containing solution at 150 to 220 deg. C and 0.5 to 5 torr for a shorter time than the first distilling process, wherein the temperature increasing rate of the first distilling process is 8.5 deg. C per hour and the temperature increasing rate of the second distilling process is 50 deg. C per hour.