baber/WOPTO huggingface dataset:
Patent KR-20000017052-A (KR)
Inventor: MALECHCO CHRISTIAN
IPC: C08J5/00
Filed: 1999-08-04
Abstract: PURPOSE: A polyisocyanate polyaddition product is prepared which has a high hardness, low brittleness and coefficient of thermal expansion and improved light transmittance rate and light scattering rate. CONSTITUTION: Isocyanate is reacted with a compound having reactivity to the isocyanate at 20- 220 degree C for 0.5- 15 minutes in a 1- 20 MPa pressure of mold in the presence of or not catalyst, supplement agent and additives. Thus, 200 g of isocyanate and 30 g of polyol A such as polyether multivalent alcohol having 875 mg KOH/g of hydroxyl value to give isocyanate prepolymer in the presence of 0.001- 0.1 weight % of tin catalyst. 200 g Of the isocyanate prepolymer, 50 g of polyol A, 25 g of polyol B such as polyether multivalent alcohol having 770 mg KOH/g of hydroxyl value, 25 g of polyol C such as polyester multivalent alcohol of diethyl glycol and trimethylol propane having 60 mg KOH/g of hydroxyl value, are injected by RIM process in the presence of 1.0 g of tin and 1.25 g of 1,8-diazabicyclo£5,4,0|undec-7-ene to give the title product.
Patent KR-20000017067-A (KR)
Inventor: TANAKA ASUO
IPC: B29C43/10
Filed: 1999-08-04
Abstract: PURPOSE: A rubber for a heat press buffer is provided to prevent a low molecular gas or a bleed substance from generating as well as to be excellent in the following property of the distortion recovery and the irregularity and to prevent a gap from generating in the pressurized subject. CONSTITUTION: The rubber for a heat press buffer is manufactured by the steps of: manufacturing a mix-milling substrate by mixing and milling a raw rubber, a vulcanizing agent, a vulcanizing accelerator and a plasticizer; manufacturing non-vulcanized rubber sheet by processing the mix-milling substrate on the sheet; manufacturing vulcanized rubber sheet by firstly vulcanizing the non-vulcanized rubber sheet; and volatilizing the plasticizer by secondarily vulcanizing the vulcanized rubber sheet at a temperature more than a boiling point of the plasticizer.
Patent KR-20010016839-A (KR)
Inventor: EOM JU HYEON
IPC: H04Q1/00
Filed: 1999-08-04
Abstract: PURPOSE: A method for generating a message waiting signal of a switching system is provided to generate a rectified voltage source for message waiting signals by using a ring source inside the switching system without an additional power unit, and to timely distribute the rectified voltage source by using a corresponding ring source to periodically control the rectified voltage, so that the operation of a relay can be minimized and the durability of parts can be extended. CONSTITUTION: A rectified voltage generating unit(11) generates a rectified voltage source for message waiting signals, by using a ring source inside a system. A voltage source distributing unit(12) timely distributes the rectified voltage source for message waiting signals generated by the rectified voltage generating unit(11). A voltage source control unit(13) delivers the rectified voltage source for message waiting signals distributed by the voltage source distributing unit(12) to a corresponding subscriber line. A controller(14) periodically controls the rectified voltage source for message waiting signal generated by the rectified voltage generating unit(11), to control the rectified voltage source to be delivered to the subscriber line.
Patent KR-20000017302-A (KR)
Inventor: NAKAMOTO TADASHIGE
IPC: B29K105/06
Filed: 1999-08-14
Abstract: PURPOSE: A surface-treated steel sheet is provided which has good heat-resistance, releasability, and thermal properties such as heat conductivity and coefficient of linear expansion. CONSTITUTION: The resin coating film comprises a resin selected from the group consisting of epoxy resin, phenol resin, polyimide resin, polyamideimide resin, ketone resin, wholly aromatic polyester resin, unsaturated polyester resin and silicone resin. The resin film has a contact angle of a gear oil of more than 15 degree when the contact angle is measured at the surface temperature of steel sheet of 180°C by using a gear oil of viscosity grade ISO VG 460. The pencil hardness of the resin film is more than 2H. Also the resin film contains further silicon resin and/or fluorine resin as a releasing material, The adhesion amount of the resin film is preferably 0.5-8.0 gram per square meter. Preferably the steel sheet has a yield point of more than 200 Newton per square millimeter and a tensile strength of more than 300 Newton per square millimeter.
Patent KR-19990078865-A (KR)
IPC: A62C2/06
Filed: 1999-08-14
Abstract: 본 발명은 방화도어의 단열구조를 개선하고, 방화도어 힌지의 외부노출이 없도록 함과 동시에 힌지로 도어의 수평 조작이 용이토록 하여 단열 및 방음효과와 더불어 도어의 장식적 미감을 돋보이도록 한 방화도어에 관한 것으로, 문틀(20)과, 문틀(20)에 힌지수단을 통해 연결되어 실내외를 개폐시킴과 동시에 방화기능을 갖는 방화도어(30)에 있어서, 상기 방화도어(30)는, 내측단열판체(36), 내측단열판체 (36)와 소정의 간격을 두고 마주보는 외측단열판체(42A,42B), 외측단열판체 (42A,42B)의 사이에 배치되고 일측면에 요철문양을 갖는 중간판체(50), 내측단열판체(36) 및 외측단열판체(42A,42B)의 전둘레면을 마감하기 위한 세로마감재 (32A,32B,34A,34B) 및 상,하부가로마감재(72,74), 상기 중간판체(50)와 외측단열판재(42A,42B)를 매개시켜 마감처리 하기 위한 중간판체 세로마감재(46A,46B), 및 중간판체(50)의 상,하단을 마감하기 위한 중간판체 상,하가로마감재(90A,90B)를 포함하고; 상기 힌지수단은, 브래킷(62), 브래킷(62)에 회전자재가능하게 설치된 이송볼트(64), 이송볼트(64)에 나사결합된 피봇블록(66)을 각각 갖는 상,하부도어힌지 (60A,60B)를 구비하고, 상기 하부도어힌지(60B)를 하부가로마감재(74)측에 장착하여 상기 문틀(20)의 하측에 입설된 피봇축(23)에 결합하고, 상부도어힌지(60A)를 상부가로마감재(72)측에 장착함과 동시에 문틀(20)의 상측에 장착된 피봇축 조작기구(70)에 의해 결합되도록 하되, 상기 피봇축 조작기구(170)는 문틀(20)의 상부측에 장착된 플레이트(172), 플레이트(172)상에 회동지지된 피봇축 레버(174), 피봇축 레버(174)의 일단에 연결된 피봇축(175) 및 피봇축 레버(174)의 타단에 연결된 피봇축 조절나사(176)를 포함한 것을 특징으로 한다.
Patent KR-20000017377-A (KR)
Title: Grate for Incineration Plants
Inventor: PRIER MUTE FRIDRICH
IPC: F23H3/02
Filed: 1999-08-18
Abstract: PURPOSE: A grate is provided to simplify the drive unit of a grate-lining unit, to secure the use of the plant and to idealistically apply the working grate-lining heat to the burning movement of each combustible material. CONSTITUTION: The grate is made up with the steps of:containing a grate track consisted of a fixing and working grate-lining row(2, 3) having plural grate-lining units(4, 5) which are laid in parallel, arranged in the flow direction of the combustible material(1) by turns; connecting the grate-lining unit to the fixing and working grate-lining carrier(6, 7) in the rear end area and then moving on the next grate-lining unit or over the next grate lining unit with the front end; attaching a driving unit(9) having a torsion bar leaded toward the outside of an under-blast area(8) on the working grate-lining unit(5).
Patent KR-20010019757-A (KR)
Inventor: KIM KYU HO
IPC: H04B1/40
Filed: 1999-08-30
Abstract: PURPOSE: A power source for a radio apparatus is provided to minimize a transformer's volume and to facilitate usage and handing by supplying a power source to a stationary radio apparatus and a portable handy radio apparatus through one power source's supply device. CONSTITUTION: A power source for a radio apparatus adds an additional control part. The apparatus contains a main control part(40a) which successively selects voltage by a variable resistance performing a volume role and a subcontrol part(40b) which selects the specified voltage by a selector(SEL) to the general structure.
Patent KR-20010026263-A (KR)
Title: Hinge cam for refrigerator
Inventor: KIM JONG JIN
IPC: F25D23/02
Filed: 1999-09-03
Abstract: PURPOSE: A hinge cam for refrigerator is provided to minimize wear and friction deformation of the hinge cam by allowing lubrication oil to be directed to the contact surface between hinge cams during slide motion. CONSTITUTION: A hinge cam(30) includes a fixation section(32) to be fixed to the lower surface of a refrigerator door or the top surface of a hinge, and a rotation support section(34) protruded upwardly from the fixation section. The fixation section has a coupling hole(32a) for fixation to the refrigerator or hinge, and the rotation support section has a hinge hole(33) for insertion of a hinge axis. The rotation support section has three protrusions(36) with inclined surfaces(36a,36b,36a',36b'), and a groove(38) formed between adjacent protrusions. The hinge cam has a contact surface consisting of protrusions, groove, inclined surfaces, and a lubrication oil storing groove(40) formed along the circumferential direction of the contact surface of the hinge cam. The lubrication oil is fed to the contact surface, to thereby allow for smooth sliding motion.
Patent KR-20010036139-A (KR)
Inventor: KIM WAN SIK
IPC: H01L21/68
Filed: 1999-10-06
Abstract: PURPOSE: An anti-looseness screw for semiconductor manufacturing equipment is provided to prevent fine errors by preventing a loosing effect of a combination part between a vibration isolator and an align bridge. CONSTITUTION: An anti-looseness screw for semiconductor manufacturing equipment comprises a screw body(14), a fixing nut(16), and a locking screw(18). The screw body(14) is inserted into a penetrating hole(10a) of a fixing body(10) and a combination hole(12a) of a fixed object(12). The fixing nut(16) having a ring shape is installed at a pillar between a screw thread(14a) and a head part(14b) of the screw body(14). The fixing nut(16) is formed with a multitude of locking hole(16a). The locking screw(18) is combined with the locking holes(16a) of the fixing nut(16) in order to fix the fixing body(10) and the fixed body(12).
Patent KR-20010036685-A (KR)
Inventor: CHOI YEONG GWON
IPC: A61K31/445
Filed: 1999-10-11
Abstract: PURPOSE: A composition for administering fentanyl transdermally laminated by separating two adhesive polymers having different solubility to each adhesive polymer into a first matrix layer and a second layer respectively and setting on the same surface in a specified ratio is provided, which has a remarkable effect when used as formulations for the treatment of severe pain of terminal cancer or after operation. CONSTITUTION: This matrix type composition for transdermal administration of fentanyl comprises a supporting layer(1) having a thickness of 25 to 75mm; a first matrix layer(2a) fixed on the support layer and containing 0.1 to 2.0% by weight of fentanyl; a second matrix layer(2b) placed the same surface as the first matrix layer, fixed on the supporting layer and containing 0.1 to 2.0% by weight of fentanyl; and a peeling layer attached on the first matrix layer and the second layer to protect the matrix layer and to be removed before attaching to the skin.
Patent KR-20010038703-A (KR)
Inventor: CHOI YEONG YUN
IPC: C01G23/00
Filed: 1999-10-27
Abstract: PURPOSE: A method for preparing fibrous alkali titanate by acid gas treatment is provided which reduces two-step heat treatment process for conventional method to one-step heat treatment process. CONSTITUTION: The method comprises steps of: (i) mixing raw materials consisting of M2O and TiO2(S100); (ii) adding an excessive amount of alkali metallic compound to the mixed raw materials to be crystally grown as M2O·2TiO2, M2O·4TiO2 or mixtures thereof at a temperature of 900-1,350 deg.C(S110); and (iii) reacting the crystally grown materials from the step (ii) with acid gas to remove excessive alkali salt of alkali metal oxide from a reaction system and obtain fibrous alkali titanate(S120), wherein M is an alkali metal.
Patent KR-20010029409-A (KR)
Inventor: FUJIMATSU AKIRA
IPC: A01G31/00
Filed: 1999-11-05
Abstract: PURPOSE: To provide a plant culture device which can increase a crop yield per unit, facilitates culture works and harvest works, does not have a fear of the root rot of plants, and can be manufactured at a low installation cost. CONSTITUTION: This plant culture device is obtained by forming plural holes 2 on the upper surface side of an obliquely disposed long pipe 1, inserting short pipes 3 filled with a plant growth culture medium 4 into the holes 2, respectively, forming a naturally flowing culture liquid passage 6 between the inner surface of the long pipe 1 and the long pipe inner surface-facing tip surfaces 3a of the short pipes 3, and arranging a plurality of the long pipes 1 to form a slope.
Patent KR-20010054142-A (KR)
Title: Circuit for preventing static electricity of vacuum cleaner
Inventor: BAEK JONG GEUN
IPC: A47L9/28
Filed: 1999-12-03
Abstract: PURPOSE: An antistatic circuit of a vacuum cleaner is provided to prevent static electricity in a suction port of a power brush from being generated, and a control circuit from being damaged in cleaning a carpet with the power brush. CONSTITUTION: A vacuum cleaner is composed of an extension pipe(100) passing air and dust; a first lead wire(200) electrically connected to the extension pipe; a resistance(400) connected to the first lead wire; a discharge unit(500) connected to the resistance in series, and conducted in applying high voltage; and a second lead wire(300) connected to the discharge unit, and electrically connected to a power cord. The vacuum cleaner discharges static electricity generated in a suction port of a power brush and accumulated in the extension pipe without electrical shock. A control circuit is prevented from being damaged by static electricity, and the reliability of the vacuum cleaner is improved.
Patent KR-20010054494-A (KR)
Inventor: KONG I TAEK
IPC: F01P11/14
Filed: 1999-12-07
Abstract: PURPOSE: A device for discriminating a failure of a water pump is provided to inform a driver of the failure of the water pump via a display a detected change of a resistance value, thereby preventing the overheat of an engine due to the failure of the water pump. CONSTITUTION: A device for discriminating a failure of a water pump includes a plate element(4) mounted on a supporting shaft(5) to rotate by water flow via a pump discharge hole(3) of the water pump, a torsion spring(6) for applying force to the plate element for the plate element to block the water flow, a brush(7) fixed at an end part extended to the outside of the pump discharge hole of the supporting shaft in a perpendicular direction with respect to the supporting shaft, a variable resistance(8) having a resistance value variable depending on the change of a contact position as the brush rotates, and a display(9) to be driven when an output voltage becomes a reference voltage by the change of the variable resistance value.
Patent KR-20010063339-A (KR)
Inventor: YANG SEONG RYEOL
IPC: F02D45/00
Filed: 1999-12-22
Abstract: PURPOSE: An electronic device control unit in a vehicle is provided to reduce the size of each control unit by adopting a single hybrid IC(Integrated Chip) having the same pin structure for a master interface module in a master control unit and slave interface modules in a slave control unit of a vehicle. CONSTITUTION: An electronic device control unit for a vehicle consists of: a master CPU(1100) outputting a control signal for controlling each electronic unit in a vehicle and a time synchronizing clock for time synchronization with a slave control unit(2000); a master control unit(1000) having a master interface module(1200) for interfacing between the slave control unit and the master CPU; a slave CPU(2100) generating a control response signal from the control signal and the time synchronizing clock and outputting the control response signal synchronized to the time synchronizing clock; and plural slave control units having slave interface modules(2200) for interfacing between the slave CPU and the master control unit. The electronic device control unit has a single hybrid IC having the same pin structure of the master interface module and the slave interface modules so that the size of each control unit is reduced.
Patent KR-20010058168-A (KR)
Inventor: KIM GWANG HO
IPC: G02F1/1335
Filed: 1999-12-24
Abstract: PURPOSE: A reflecting assembly of a backlight unit is to prevent light reflected from a mold frame, which is disposed at a lower portion of a reflecting plate, and thus prevents forming of an absorbing pattern. CONSTITUTION: The reflecting assembly is disposed at a lower portion of a light guiding plate(10) to reflect light transmit through a lower portion of the light guiding plate to an upper portion. A main reflecting plate(20) is disposed at a lower portion of a light guide plate. A re-reflecting plate(21) is disposed at a lower portion to re-reflect light passing through the main reflecting plate to the upper portion. The main reflecting plate and the re-reflecting plate are apart from each other at a desired distance so that the light is continuously re-reflects between the main reflecting plate and the re-reflecting plate and then incident to the light guiding plate. The re-reflecting plate is formed of silver. A protecting plate(22) is disposed at a lower face of the re-reflecting plate.
Patent KR-20010065362-A (KR)
Inventor: OH SEOK AM
IPC: B01D46/04
Filed: 1999-12-29
Abstract: PURPOSE: An air impact gun is provided to remove the dust from a filter by applying a compression air impact by an instant opening and closing operation of a diaphragm valve and prevent the frequent failure of a solenoid valve by employing a current control method, thereby preventing the decrease of the dust remove ratio of the filter. CONSTITUTION: An air impact gun includes a cylinder(1) formed in a pressure container(7) having an air outlet(6) and mounted with a filter at a side, a working element(2) mounted at a front part in the cylinder movably but not to deviated from the air outlet, a fixing element(5) fixed at a rear part in the cylinder and mounted with an outlet valve(4) and an air inlet tube connected to an injection side(10) of a three-way valve(100), forming an inner space(8), and a plurality of through holes(9) formed in a front outer periphery of the cylinder to be opened or closed by the working element which moves to and fro by air pressure, wherein a seat ring(30) is held on a protruded stepped part of the cylinder for preventing the deviation of the working element and an O-ring(32) is mounted to the seat ring for maintaining sealed state.
Patent KR-20010066471-A (KR)
Inventor: KOO YEONG DEUK
IPC: B60T7/08
Filed: 1999-12-31
Abstract: PURPOSE: A parking brake system is provided to reduce noise generated when a parking brake is operated. CONSTITUTION: A parking brake system comprises an operation lever(10), a rotary axis(16), an arm(18), a cable(20) and a coil spring(22). The operation lever is rotatably installed and axially supported by the first supporting member(12) fixed in a car room. The rotary axis is engaged with the operation lever, rotatably installed and axially supported by the second supporting member(14) fixed to face the first supporting member. The arm is rotatably engaged integrally with the rotary axis. The cable is connected with the arm and extended to transmit park operating force to shoes of rear wheels. The coil spring is placed inside the rotary axis and integrally has a movable end(22a) exposed to the outside to face a release rod(10b) pressed and moved by a push button of the operation lever and a fixed end(22b) exposed to the outside and fixed to the first supporting member.
Patent KR-20000068290-A (KR)
Title: 합성 폴리에스테르 흡수 물질
IPC: D01D5/253
Filed: 1997-08-22
Abstract: 본 발명은 기저귀, 생리대 및 성인 실금자용 패드와 같은 다양한 흡수 제품에 일시적 포획/분배 흡수 구조체 및 영구적 저장/분배 흡수 구조체로서 유용성을 가진 합성 중합체 섬유를 제공한다.  이들 섬유는 짧고 매우 비틀려있으며 벌크하고, 2 내지 약 37 mm 범위의 길이, 5 내지 70 범위의 짧은 범위 비틀림 계수, 0.05 내지 0.9 범위의 긴 범위 비틀림 계수 및 0.5 내지 10.0 범위의 단섬유 벌크 계수를 가진다.  이들은 표면 상에 모세관 채널을 갖거나 갖지 않을 수 있다.  이들 물질의 잇점은 개선된 흡수능, 저밀도에서의 감소된 습윤 붕괴도, 감소된 재습윤성, 감소된 가압하 액체 손실, 및 모세관 채널 섬유와 같은 분배 물질에 의해 또는 플러프 펄프 또는 초흡수성 중합체 섬유 또는 분말과 같은 통상적인 저장 물질에 의해 탈착되는 능력이다.
Patent KR-20000068452-A (KR)
Title: 수면 중 코골기 및 호흡정지를 방지하기 위한 장치
IPC: A61F5/56
Filed: 1997-09-05
Abstract: 본 장치는 수면 중 코골기 및 호흡정지를 억제하기 위한 것이다.  본 장치는 수면 중 구인두에 그리고 구강 부위에 위치된다.  본 장치는 적어도 혀뿌리부(14)까지 내려가서, 혀(13)와 연구개(15) 사이에 위치되기에 해부학상 적절한 디자인의, 가로로 평평하고 아치형인 가요성 튜브(1)로 이루어져 있다.  필터(2)는 이 튜브의 외측단부에 고정된다.  이 필터는 제거될 수 있다.  따라서 호흡되는 공기는 코골기나 호흡정지를 일으키지 않으면서 외부로부터 후두까지 자유롭게 이동된다.  고정 시스템(24)은 수면 중에 이 튜브가 입 내측에 잘 유지되도록 제공된다.
Patent KR-20010005950-A (KR)
Title: 안테나 및 스위치 방식의 증폭기가 구비된 무선 수신용
IPC: H04N5/44
Filed: 1998-03-25
Abstract: 주파수 튜너를 갖는 방송 수신 장치(12)에 연결된 무선 수신 부시스템은 피드 포인트, 상기 피드 포인트에 연결된 증폭기, 상기 안테나 및 상기 증폭기의 상기 피드 포인트로부터 주파수 튜너를 갖는 방송 수신 장치의 신호 입력부로 연장된다. 트랜스미션 라인은 한쌍의, 예를 들어 동축케이블 도체(24, 26)를 갖는다. 수동식으로 작동하는 스위치(28)가 도체들을 지나 DC 전압을 인가하기 위해 트랜스미션 라인에 배치되며, 릴레이 스위치(22)는 전압에 응답하여 트랜스미션 라인에 증폭기의 연결 상태를 변화시키기위해서 트랜스미션 라인에 연결된다.
Patent KR-20010006355-A (KR)
IPC: A61K9/00
Filed: 1998-04-14
Abstract: A throat drop comprises from 60 to 95% of a candy shell and from 5 to 40% of an aqueous filling, by weight of the drop. The filling comprises, by weight, by 8 to 20% water, from 50 to 85% bulk sweetener, and sufficient emulsifier to provide a contact angle of from 90° to 120°, the filling having a contact angle of greater than 120° in the absence of the emulsifier. The reduction in contact angle relative to a composition without the emulsifier provides an improved perception of liquidity of the filling.
Patent KR-20010012951-A (KR)
IPC: A61K31/5377
Filed: 1998-05-27
Abstract: The below-described compound has good oral adsorption and exhibits markedly excellent antagonistic action against both NK1 receptors and NK2 receptors.   Hydrochloride or fumarate of 1-ä2-Ä(2R)-(3,4-dichlorophenyl)-4-(3,4,5-trimethoxybenzoyl)morpholin-2 -ylÜethylüspiroÄbenzo(c)thiophene-1(3H),4'-piperidinÜ-(2S)-oxi de.
Patent KR-20010020487-A (KR)
Title: 박형 컴퓨터 디스플레이의 저온 유리 프릿 밀봉
IPC: G09F9/00
Filed: 1998-06-18
Abstract: 본 발명은 평면 디스플레이 및 저온 유리 프릿 증착(101)을 이용하여 평면 디스플레이를 형성하는 방법에 관한 것이다.  일 실시예에서 어셈블리(102)는 튜브가 없는 밀봉부를 형성하기 위해 단계(104)에 의하여 진공에서 약 220도의 낮은 프릿 밀봉 온도로 가열된다.  저온 프릿은 종래 공정 보다 낮은 온도에서 유리 프릿이 용해되도록 한다.  또한, 배출 튜브를 통한 배출과 관련된 공정 단계가 생략된다.
Patent KR-20010073468-A (KR)
Title: Pick-up speed variableness control method
Inventor: BAEK JEONG GI
IPC: G03G15/00
Filed: 2000-01-15
Abstract: PURPOSE: A variable control method of pickup speed is provided to be capable of preventing the paper mis-pickup due to friction coefficient difference between papers. CONSTITUTION: In a variable control method of pickup speed of an image forming device having a pickup roller rotated by an engine motor to pickup a paper, it is first detected whether an image forming command is input. Then, the paper pickup is performed by rotating the engine motor at a speed lower than a normal speed when the image forming command was input. Next, the paper is transferred by rotating the engine motor at the normal speed after the paper pickup. Further, a paper re-pickup process is performed by rotating the engine motor at a speed lower than the normal speed after the paper pickup.
Patent KR-20010073712-A (KR)
Title: Method for preparing Titanium dioxide film on polymer substrate
Inventor: CHOI JIN HO
IPC: B01J37/02
Filed: 2000-01-19
Abstract: PURPOSE: A method for forming titanium dioxide photocatalyst thin film on polymer support is provided, which can prepare thin film at room temperature and decompose nonbiodegradable toxic organic matter such as phenol, coloring compound such as methylene blue and organic matter such as salad oil. CONSTITUTION: The manufacturing method is as follows: (i) prepare antase titanium dioxide nanosol solution by reacting titanium alkoxide, complex forming agent and water in the presence of acid catalyst; (ii) dilute by adding alcohol solution to the prepared titanium dioxide nanosol solution; (iii) washcoat the diluted titanium dioxide nanosol solution on a polymer support; (iv) dry the washcoated thin film at 25-100 deg.C; and (v) repeat the washcoating and drying steps of the washcoated thin film serially.