baber/WOPTO huggingface dataset:
Patent KR-20000042675-A (KR)
Title: Method of manufacturing semiconductor device
Inventor: RYU HYEOK HYEON
IPC: H01L21/28
Filed: 1998-12-26
Abstract: PURPOSE: A method of manufacturing a semiconductor device is to remove a cleaning process utilizing NOE(Neutral Oxide Etchant) chemicals, thereby improving yields and reliability of the semiconductor device. CONSTITUTION: A method of manufacturing a semiconductor device comprise the steps of: providing a semiconductor substrate(11) with a device isolation film(12) and a gate electrode(14) formed thereon; forming on a whole surface of the semiconductor substrate a photoresist film pattern exposing a predefined contact hole area and the adjacent isolation film; ion-implanting impurity in the exposed portion of the semiconductor substrate to form a source/drain area(16) in an active area of the substrate and to form a plug ion layer(17) on the upper portion of the device isolation film; removing the photoresist film pattern and forming an interlayer insulation film(19) on the resultant product thus obtained; and performing photo-etching process to form a contact hole(20) exposing the source/drain area.
Patent KR-20000043035-A (KR)
Title: Method for forming insulation film of semiconductor device
Inventor: MOON YOUNG HWA
IPC: H01L21/31
Filed: 1998-12-28
Abstract: PURPOSE: A method for forming an insulation film of a semiconductor device is provided which can suppress the generation of void by increasing the flowage of a BPSG film and can prevent the short of a metal layer by using a lightly doped BPSG film as a contact part with a wire. CONSTITUTION: A method suppresses the generation of void by increasing the flowage of a BPSG film and prevents the short of a metal layer by using a lightly doped BPSG film as a contact part with a wire. The method includes the steps of: forming a spacer film on top of the whole structure after forming a gate polysilicon transistor on top of a substrate(201) where a cell region and a peripheral region are separated; performing a RTP(Rapid Thermal Processing) process and a reflow process after forming a heavily doped BPSG film on top of the whole structure; removing the heavily doped BPSG film formed on the peripheral region after etching the heavily doped BPSG film partially; forming a lightly doped BPSG film(209) having a lower B density than the heavily doped BPSG film on top of the whole structure; and planarizing the surface of the lightly doped BPSG film.
Patent KR-20000043670-A (KR)
Title: Filling material for filling neighbour of refractory brick for preventing tundish nozzle
Inventor: HONG KI KON
IPC: C04B35/12
Filed: 1998-12-29
Abstract: PURPOSE: A filling material is provided, for filling neighbour of refractory brick to prevent a tundish nozzle. CONSTITUTION: A filling material comprises 95-98 wt% of magnesia-chromia (MgO-Cr2O3) based pulverized waste refractory brick; and 2-5 wt% of magnesium salts. Preferably the particle size of the magnesia-chromia based pulverized waste refractory brick is 5 mm or less. The purity of the magnesium salts is preferably more than 95%.
Patent KR-20000043830-A (KR)
Title: Analog/digital converter
Inventor: LEE YONG SEOB
IPC: H03M1/12
Filed: 1998-12-29
Abstract: PURPOSE: An analog/digital converter is provided to improve an accuracy and to reduce a conversion time, by removing an error owing an offset voltage generated from a comparator for determining digital data. CONSTITUTION: An analog/digital converter comprises a digital-to-analog converting part(40), a comparator(41), a successive approximate register(SAR) part(42), and an offset compensating part(43). The SAR part(42) determines a bit value by setting a most significant bit to '1' and remaining bits to '0'. The digital-to-analog converting part(40) converts an output signal of the SAR part(42) into an analog signal to generate a comparison voltage. The comparator(41) compares the comparison voltage with an input analog signal to determine the most significant bit value of '0' or '1'. The most significant bit value is supplied to the SAR part(42). The offset compensating part(43) is located between the digital-to-analog part(40) and the SAR part(42), and determines an initial offset value of the comparator(41) to compensate the offset according to the determined value.
Patent KR-20000044081-A (KR)
Title: Device for playing back audio data of cd-rom and dvd-rom
Inventor: SEO WON HO
IPC: G11B20/00
Filed: 1998-12-30
Abstract: PURPOSE: A device is provided to play back audio data of a DVD-ROM without using an external apparatus by installing a CD decoder and an audio MPEG decoder. CONSTITUTION: A CD(Compact Disk) or a DVD(Digital Video Disk) is inserted to a deck unit(4), and a user feeds an establish signal through a playback establish unit(1). A microcomputer(2) operates the playback of the CD-ROM or the DVD-ROM. The audio signal of the disk is applied to a digital signal processing unit(5) for processing the audio signal. The processed signal is applied to a CD decoder(7) and to an audio MPEG decoder(8). Herein, the microcomputer detects the signal output from the digital signal processing unit for detecting the format of the output signal. The microcomputer controls a switching instrument(9) for applying the audio signal from the CD decoder or from the audio MPEG decoder to a D/A converter(10) according to a configuration of a file output.
Patent KR-20000045957-A (KR)
Title: Method for preparing reflection plate for advertising light box
Inventor: PAEK SEUNG HUI
IPC: B32B15/08
Filed: 1998-12-30
Abstract: PURPOSE: A reflecting plate for advertising light box is provided to exclude defects of related conventional reflecting plate that is poor diffused reflection effect and low efficiency of work. CONSTITUTION: A method for preparing a reflecting plate for advertising light box according to the present invention comprises: a) coating polyethylene(PE) resin on one face of non-woven fabric by T-Die method for the lamination of long fiber non-woven fabric and polyethylene film; b) heat laminating the said coated non-woven fabric and PE film; c) coating PE resin on the other face of the non-woven fabric by T-Die method; d) coating PE resin on the rear face of polyester(PET) film on which aluminum is vapor-deposited; e) laminating the PE-coated PET film on the PE film-laminated non-woven fabric by passing a heating roller to form the heat-adhesion thereof; and f) heating and cooling the laminate obtained from the step e).
Patent KR-20000046517-A (KR)
Title: Infrared absorption bolometer with improved absorption efficiency
Inventor: KIM DONG GYUN
IPC: G01J1/02
Filed: 1998-12-31
Abstract: PURPOSE: An infrared absorption bolometer with improved absorption efficiency is provided to achieving re-absorption of infrared ray permeating an absorption level by an infrared reflection film, thereby increasing the absorption efficiency of the infrared absorption bolometer. CONSTITUTION: An infrared absorption bolometer with improved absorption efficiency includes a driving substrate level(210) including a substrate(212), more than one pair of connecting terminals(214) formed on the substrate, and a protecting layer(216) covering the substrate, a supporting level(220) including more than one pair of supporting bents(240) having a conductive line(255) of which one end is electrically connected with a corresponding one connecting terminal, an absorption level(230) including an absorption band(295), bolometer elements(285) surrounded by the absorption band, and an infrared absorption coating(297) formed on a top surface of the absorption band, an infrared reflection film(270) formed under the absorption level, and at least more than one pair of posts(260) positioned between the supporting bents and the absorption level, surrounded with an insulating material and having an electric tube(262) for connecting the bolometer element with the conductive line electrically, wherein the bolometer elements of the absorption level are respectively connected with corresponding connecting terminals electrically via the electric tube and the conductive line.
Patent KR-20000046782-A (KR)
Title: Method for manufacturing semiconductor device
Inventor: JEON SEOK BO
IPC: H01L21/82
Filed: 1998-12-31
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to simplify the manufacturing process not only for MOS transistors but also BJ transistors. CONSTITUTION: A method for manufacturing a semiconductor device includes following steps. At the first step, a field oxide layer(12) is formed on the substrate(11). At the second step, a gate oxide layer(13), a multi crystal silicon(14), a dielectric layer(15) and another multi crystal silicon(16) are vaporized on the surface of the substrate. At the third step, capacitor upper electrode(17) is formed on the upper portion of the field oxide layer(2) by using a photolithography process. At the forth step, a dummy gate(18) is formed on the surface of the center of the substrate(1). At the fifth step, a low concentration source and drain(19) are formed on the rear surface of the substrate(1). At the sixth step, a sidewall(20) is formed on the side wall of the upper electrode. At the seventh step, a gate electrode(22) is formed on the portion from where the dummy gate is removed.
Patent KR-19990067309-A (KR)
Title: 열 활성화가능한 접착제 조성물
IPC: C08F220/12
Filed: 1996-10-10
Abstract: 본 발명은 아크릴 공중합체를 포함하는 열 활성화가능한 접착제 조성물에 관한 것이다. 상기 공중합체는 유리 전이 온도가 약 0℃ 이하인 비삼차 알킬 알콜의 아크릴레이트 또는 메타크릴레이트 에스테르로 된 단량체; 유리 전이 온도가 약 50℃ 이상인 알콜의 아크릴레이트 또는 메타크릴레이트 에스테르로 된 단량체; 및 작용성 단량체를 포함한다. 선택된 구체예는 역반사 제품을 포함하는데, 이 제품은 실질적으로 평평한 표면 및 다수의 정확하게 형성된 돌출부를 포함하는 구조화된 표면; 상기 구조화된 표면에 배치되고, 다수의 불연속 지점에 의해 부착된 착색된 층; 및 상기 착색된 층에 위치된 열 활성화가능한 접착층을 포함한다.
Patent KR-19990067622-A (KR)
IPC: A61K31/454
Filed: 1996-11-07
Abstract: The present invention relates to novel substituted piperidine derivatives of formula (1), stereoisomers thereof, and pharmaceutically acceptable salts thereof which are useful as histamine receptor antagonists and tachykinin receptor antagonist. Such antagonists are useful in the treatment of allergic rhinitis, including seasonal rhinitis and sinusitis; inflammatory bowel diseases, including Crohn's disease and ulcerative colitis; asthma; bronchitis; and emesis.
Patent KR-19990071924-A (KR)
Title: 주사시스템
IPC: G02B5/09
Filed: 1996-12-04
Abstract: 광자 빔이 1차 주사 수단 상에 충돌하여 1차 일반 주사 방향 내에서 광자 주사 효과, 즉, 라인 스캔 효과를 발생하도록 광자 빔을 1차 주사 수단을 향하게 하는 광원과 ; 상기 1차 주사 방향에 대하여 대체로 우측에 각을 이루는 2차 일반 주사 방향 내에서 일반적으로 상기 광자의 주사 효과, 즉, 프레임 스캔 효과를 발생하는 2차 주사 수단으로 구성됨으로써 영상을 감지 할 수 있다. 상기 광원은 통상 화상 정보를 전송하기 위하여 변조된다. 상기 주사 수단은 대체로 각각의 주사 장치로부터 반사된 동조 라이트 빔을 감지함으로써 영상 생성 라이트 빔의 변조와 동조되며, 상기 동조 라이트 빔은 상기 영상 생성 빔과 뚜렷이 구별된다.
Patent KR-19990072211-A (KR)
Title: 폴리에틸렌테레프탈레이트용기를치수안정시키는방법
IPC: B29K67/00
Filed: 1997-10-15
Abstract: 본 발명은 블로우잉 단계 동안 열 처리하는 단계를 포함하는 사출 블로우 성형에 의해 성형된 PET 또는 COPET의 용기를 치수 안정화 시키는 방법에 관한 것으로서, PET 또는 COPET로부터 수득한 예비성형품은 방향족 테트라카르복실산의 이무수물, 바람직하게는 피로멜라이트 이무수물의 적은 양(0.01 내지 0.2 중량%)의 존재하에 고체 상태에서 업그레이드된다.
Patent KR-20000010762-A (KR)
Title: Fluid control valve
Inventor: HEINZ RUDOLPH
IPC: F16K31/02
Filed: 1997-11-19
Abstract: PURPOSE: A fuel spraying valve is provided to place a piezo actuator at a position separated beside from a valve body and to prepare a space to install the piezo actuator if the piezo actuator is big. CONSTITUTION: The fuel spraying valve comprises:a valve box(1) having a vertical hole(2); a valve pin(3) connected to the inner part of the vertical hole; a conical closing face(4) placed on one end of the valve pin and collaborating with a seat at a peak(5) installed in the valve box and protruded inward a combustion chamber; a double cylinder(7) connected with a large pressure chamber(8) connected with a pressure pipe all the time; and spraying openings connected to the seat and connecting the double cylinder(7) surrounding the valve pin with the combustion chamber to perform spraying when the valve pin is separated from the seat.
Patent KR-20000016422-A (KR)
Title: Toothed belt
Inventor: YAMADA MITSUHO
IPC: D03D1/00
Filed: 1998-04-07
Abstract: PURPOSE: A toothed belt is provided to have an excellent durability and a low noise while driving. CONSTITUTION: A toothed belt being excellent in durability and less noisy during drive and having a foundation cloth (2) stuck along meshing surfaces (5), characterized in that yarns of the foundation cloth (2) extending in a lengthwise direction of the toothed belt comprise a plurality of false twist yarns twisted in the same direction of false twisting, and the yarns and yarns intersecting them are woven in twill weave formation on both surfaces, and that surfaces of the foundation cloth (2) where the false twist yarns are less exposed are exposed outside.
Patent KR-20000022384-A (KR)
Title: High dose liposomal aerosol formulations
Inventor: WALDREP J CLIFFORD
IPC: A61K9/127
Filed: 1997-07-02
Abstract: PURPOSE: A method is provided for high dose pharmaceutical liposome aerosol composition comprising about 12-30 mg/ml of a pharmaceutical compound, and about 130-375 mg of a phospholipid/ml starting reservoir concentration. CONSTITUTION: The high dose pharmaceutical liposome aerosol composition relates to biochemistry. The high dose pharmaceutical liposome aerosol composition is drawn to immunosuppressive compounds, antibiotic compounds, and anticancer compounds delivered via a high dose liposome aerosol composition in a phospholipid. More specifically, the invention provides a high dose cyclosporin A liposome aerosol composition comprising up to about 30 mg/ml cyclosporin A in up to about 225 mg of a phospholipid/ml starting reservoir concentration. Also provided is a high dose budesonide liposome aerosol composition comprising up to about 15 mg/ml budesonide in up to about 225 mg of a phospholipid/ml starting reservoir concentration.
Patent KR-20000050502-A (KR)
Title: A chelate resin for adsorption of heavy metal ion and process for preparing them
Inventor: PARK IN HWAN
IPC: C08J5/20
Filed: 1999-01-11
Abstract: PURPOSE: A chelate resin containing a phosphono group and a sulfon group as a chelate functional group is provided which improves adsorptivity and reusability as compared with conventional chelate resins. CONSTITUTION: A resin represented by the formula 1 is prepared by suspension-polymerizing styrene, divinylbenzene and bis-(2-chloroethyl)vinylphosphonate at 40 to 90°C and hydrolyzing at 40 to 100°C, sulfonating the obtained copolymer using concentrated sulfuric acid or acetyl sulfate at 30 to 90°C, if necessary, neutralized using caustic soda at 30 to 90°C after sulfonation. In formula, A denotes a hydrogen or sodium atom. The resin is characterized in that a phosphono group is introduced on a main chain of the copolymer skeleton and a sulfon group is introduced on its side chain and the resin forms irregularities with the phosphono functional group as a main chain by allowing the sulfon group which is introduced into a phenyl group as a side chain to be located at the top.
Patent KR-20000050724-A (KR)
Inventor: PARK SEONG HO
IPC: H01J9/20
Filed: 1999-01-14
Abstract: PURPOSE: A method for fabricating a color cathode ray tube is provided an optical absorbability to a film for preventing static electricity, thereby reducing a fatigue of a user. CONSTITUTION: A method for fabricating a color cathode ray tube comprises steps of mounting a target mainly made of IT within a vacuum chamber, exerting a physical force while injecting oxygen, controlling a mount of the injected oxygen, forming a film(102) for preventing static electricity and forming a film(103) for preventing reflection which has a different refractive index from that of the film for preventing static electricity and has a lower reflex ratio than that. The film for preventing static electricity has also a function of an optical absorbability in an extent of a visible light area of 400-780nm.
Patent KR-20000050977-A (KR)
Inventor: KIM HEE KYUNG
IPC: B32B27/40
Filed: 1999-01-16
Abstract: PURPOSE: A fiber laminating structure is provided which uses an artificial leather that is consisted of an ultrafine silk rather than a natural leather so that it shows excellence in peeling strength, flexibility and touch. CONSTITUTION: A fiber laminating structure is consisted of 3-layer structures which include a pile knit layer(A), a polyurethane adhesion layer(B) and an artificial leather layer(C) which is made from an ultrafine silk wherein a polyurethane adhesion layer is formed between the pile knit layer and the artificial leather layer as a thin film form with a net structure and the thickness in the polyurethane adhesion layer is 0.01mm-0.1 mm. The peel strength is 1.0-2.0 kg/inch¬2.
Patent KR-19990068082-A (KR)
Title: 포장물의 접합부를 이용한 개봉방법 및 장치
IPC: B65B69/00
Filed: 1999-01-22
Abstract: 피(被)포장물의 외측을 포장재료로 포장한 대략 육면체를 이루는 포장물의 최소한 3면의 접착편을 가진 면을 이용하여 포장재료를 자동적으로 소정 위치를 절단하고, 개봉하기 위한 방법 및 그 장치에 관한 것이다. 
     접착편(a 1 )(a 2 )에 의해 맞붙인 정면(頂面)(A)에 있어서, 상기 접착편과 피포장물(2) 및 절입편(折入片)(b 1 ′)(b 2 ′),(c 1 ′)(c 2 ′)과의 틈에 그 옆가장자리에 절단날이 부착되어 있는 절단날이 부착된 판상체(板狀體)(4)(7)를 삽입하여, 그 면의 능선을 절단하고, 흡인패드를 사용하여 그 절단편을 열고, 그 열린 정면의 양측단에 인출장치의 파지클릭(53)을 삽입하여, 피포장물을 잡아서 꺼내는 개봉방법 및 장치.
Patent KR-20000051631-A (KR)
Inventor: LEE CHANG SEOK
IPC: F25B39/02
Filed: 1999-01-25
Abstract: PURPOSE: A tri tube exchanger for an evaporator is provided to increase the defrosting period by delaying the development of the frost in the surface of the evaporator and accelerate the efficiency of the heat transmission by inducing the destroy of heat boundary layer at surroundings of the fin. CONSTITUTION: In a tri tube exchanger for an evaporator having three tubes formed with a left refrigerant tube(1a) and a right refrigerant tube(1b) and a defrosting tube(1c) for defrosting in which the refrigerant flows, a fin(2) connecting each tube, the tri tube exchanger for the evaporator includes a plurality of louvers(103) formed in the perpendicular direction in the flow direction of the air, and a plurality of the air flowing holes(104) having a diameter of 65-80% range of the louver width formed in the center of the louver at the range not exceeding the width of the louver.
Patent KR-20000052251-A (KR)
Inventor: MIN KYUNG HO
IPC: C04B38/00
Filed: 1999-01-28
Abstract: PURPOSE: A formed composition of foaming stone is provided which has the effect of heat-resistance, sound-absorption, heat insulation and cold insulation and is used as substitution of styrene foam as construction materials, living goods and industrial material. CONSTITUTION: A formed composition comprises 70-80wt% of sodium silicate, 15-20wt% of sodiumsilicafluoride(Na2SIF6) and 10wt% of water proofing solution. The formed composition is prepared by hot-air treatment under 100-200°C for 1-3hours.
Patent KR-20000055802-A (KR)
Inventor: SON SEONG EUN
IPC: C21C5/46
Filed: 1999-02-10
Abstract: PURPOSE: An apparatus is provided to prevent damage of the apparatus and reliably prevent overflow of slag at a tap hole during a tapping of molten steel from a converter. CONSTITUTION: An apparatus comprises a stopper type vertical support board(33) of which one end is fixed to a horizontal structure(30) arranged at a ceiling and the other end is fixed flexibly to a horizontal support board, a piston/cylinder assembly(40) of which one end is fixed to the vertical support board and the other end is fixed to the horizontal support board so as to vertically expand/contract, a horizontal support board(50) of which one end is hinge-coupled to ends of vertical support boards(31,32) and the other end connected to an end of a cylinder rod and the vertical support board(33), the horizontal support board having at a lower portion thereof an elongated hole(51), a support boom(60) mounted beneath the horizontal support board to be horizontally movable and which positions a slag dart(1) detachably arranged at an end of the support boom to a tap hole(11) of a converter(10), and a damage preventing device(70) mounted to the support boom so as to prevent the main body of the apparatus from being damaged by a tilting of the converter at a state where the support boom is positioned within the converter.
Patent KR-20000056068-A (KR)
Title: Disk of pad conditioner
Inventor: KIM BYUNG TAE
IPC: H01L21/304
Filed: 1999-02-12
Abstract: PURPOSE: A disk of a pad conditioner is provided to prevent a diamond attached to a polishing disk from being fallen to a polishing pad, thereby prevent a scratch on a surface of a wafer. CONSTITUTION: A disk of a pad conditioner for controlling a surface roughness of a polishing pad of a chemical mechanical polishing apparatus comprises a body(50) having at least one hole and a polishing portion engaged with the hole to make a surface of the polishing pad rough. The polishing portion comprises a cemented carbide(52). The hole is formed at an edge of the body to be engaged with the cemented carbide. A surface of the cemented carbide alloy is formed into a saw teeth shape. If the cemented carbide is worn, the cemented carbide is replaced with a new one having a same size. In order to increase an engaging force between the polishing disk and the cemented carbide, a slot is formed at a lower portion of the polishing disk.
Patent KR-19990045951-A (KR)
Filed: 1999-02-27
Abstract: 본 발명은 건식 사우나에 관한 것으로, 생육광선 방사체인 맥반석으로 생육광선 방사로(爐)를 구성하고, 이 생육광선 방사로가 설치되는 실내의 벽면이나 바닥면, 또는 천정에 피라밋 구조물이나 하니콤 형상의 육각형 구조물(육각형 타일)을 설치함으로서, 상기 생육광선 방사로에서 방출되는 생육광선과, 각각의 구조물이 갖는 신비한 효능, 즉 피라밋 파워나 히란야 파워를 몸소 체험할 수 있게 하여, 신체의 건강과 활력을 증진시킬 수 있도록 한, 맥반석 바이오-룸에 관한 것이다. 
     본 발명의 바이오-룸(1)은, 통상의 사우나 시설과 마찬가지로 사람들을 수용할 수 있는 적정 넓이의 내부 공간을 갖고 있는데, 이 내부 공간의 바닥(12)이나 사방 벽(8), 또는 천정(9)에 신비의 효능을 나타내는 피라밋 형상의 구조물(10)이나 벌집모양의 육각형 구조물(타일)(11)을 배설한다. 한편, 이 구조물들은 형태학상의 특징에 의해 신비한 효능을 갖는 것이지만, 본 발명에서는 그 효과를 증폭시키기 위해, 신비의 약석으로 알려진 맥반석(4)으로 시공한다. 
     상기 바이오-룸(1)의 내부에는, 맥반석(4)으로 만든 생육광선 방사로(2)를 재치하여, 바닥에 깔린 레일(3)을 따라 이동이 가능하게 한다.
Patent KR-20000061018-A (KR)
Inventor: HAN JUNG WOO
IPC: A47G9/00
Filed: 1999-03-23
Abstract: PURPOSE: A pillow of manufacturing type is provided to comfortable sleep by selecting the size of each component for fitting the size into the physical size, and to select the quality of a pillow by possessing some kinds of a component because the fix and take off is easy. CONSTITUTION: A pillow of manufacturing type comprises : a head supporting part(11) to support the rear of a head ; a neck supporting part(14) to be installed on the lower part of a head supporting part(11) ; a side supporting part(12) to be installed on the both sides of a head supporting part(11) and to be higher than a head supporting part(11) ; an embroidery backings(16) to be formed on each part for connecting each part.
Patent KR-20000061283-A (KR)
Title: 종이의 제조방법 및 그 방법에 사용되는 양이온 화합물
Filed: 1999-03-25
Abstract: 본 발명은 종이 또는 그에 상응하는 섬유소 제품의 제조방법에 관한 것이다.  	그 제조방법은 종이 또는 그에 상응하는 섬유소 제품에 소수성을 부여하기 위하여, 종이 또는 그에 상응하는 섬유소 제품에 양이온 화합물을 첨가하는 것이며, 이 때 상기의 양이온 화합물은 다음과 같은 화학식(Ⅰ)로 이루어져 있다. 
     
       
     
     단, 상기 화학식(Ⅰ)에서 R 1 ,R 2 및 R 3 는 서로 동일하거나 상이한 것으로서 각각 포화되거나 불포화된 비환식, 환식 또는 방향족의 1-41 탄소원자를 함유한 탄화수소이고, R4는 포화되거나 불포화된 비환식, 환식 또는 방향족의 1-41 탄소원자와 적어도 하나 이상의 산소원자를 함유한 탄화수소이며, X - 는 음이온이다. 
     또한, 본 발명은 음이온 표면에 부착되는 성능을 가지고 있는 양이온 화합물에 관한 것이다.
Patent KR-19990068758-A (KR)
Filed: 1999-06-14
Abstract: 본 발명은 생황토에 경질 우레탄폼을 혼합하여 건조시간을 현격히 단축시킬 수 있는 황토 건축재의 제조 방법을 제공하기 위한 것이다. 상기 황토 건축재의 제조방법은 생황토 70∼90%를 주성분으로 하고, 여기에 5∼25%의 경질 우레탄폼과 1∼3%의 접착보강제 및 2∼4%의 물을 혼합기에 투입한 다음, 이를 2∼5분 정도 혼합한 후, 상기 혼합물을 성형틀에 부은 다음에 약 20∼40분 동안 발포 및 성형하는 공정으로 이루어진다.