baber/WOPTO huggingface dataset:
Patent KR-890003866-B1 (KR)
Title: The complicated magnetic material
Inventor: SATO GAZHICO
IPC: H01F1/12
Filed: 1985-09-30
Granted: 1989-10-05
Abstract: The composite magnetic material includes a combination of a body of a magnetic metal material (11) and a magnetic oxide material (12) joined together to provide improved strength.  The two bodies are joined together with a thin magnetic metal film initially formed on the oxide material body by vapour deposition or sputtering.  The thin magnetic metal film can be made of the same material as the magnetic metal material body.  The two bodies have a mirror like smoothness.
Patent KR-930002736-B1 (KR)
Inventor: BERNER ROLF G
IPC: C12P21/02
Filed: 1985-11-05
Granted: 1993-04-09
Abstract: 내용 없음.
Patent KR-910001127-B1 (KR)
Title: Immune response to tumors and riruses induced by anti-idiotype antibodies
Inventor: ELAINE DEFREITAS
IPC: C07K16/00
Filed: 1984-11-05
Granted: 1991-02-25
Abstract: Anti-idiotype antibodies, their production and their use in inducing an immunological response to viruses.
Patent KR-930002332-B1 (KR)
Title: Apparatus for detection of image movement
Inventor: U YONG-SOP
Filed: 1986-04-18
Granted: 1993-03-29
Abstract: The  circuit  is  an  estimating  encoder  equipeed  on  the transmitter transmitting the television picture image having  wide band through the telephone line having narrow  band.  The  circuit detects the image motion by the method that searches the algebraic distortion function with two parallel step. The  image  motion  is estimated in real time and the estimated transmission  information is minimised because the unnecessary harmonics are removed.
Patent KR-890004556-B1 (KR)
Title: Process for preparing preventing agent for skin elastosis
Inventor: HADAE SHINKITSI
IPC: A61K31/35
Filed: 1986-06-04
Granted: 1989-11-15
Abstract: A compsn., for application to the skin in the form of ointment, cream or soln., to prevent skin elastosis, is prepd. by (a) dispersing a cyclodextrin in water with stirring, (b) adding a kojic acid gradually with stirring, and then (c) making 0.1-5 wt.% of cyclodextrin kojic acid ointment, cream or soln..
Patent KR-920002975-B1 (KR)
Inventor: OKKUZONO SHUICHI
IPC: C23C16/509
Filed: 1986-07-16
Granted: 1992-04-11
Abstract: 내용 없음.
Patent KR-940001656-B1 (KR)
Title: Transparent non-vitreous zirconia microspheres
Inventor: WOOD THOMAS E
IPC: C04B35/48
Filed: 1986-11-21
Granted: 1994-02-28
Abstract: Solid, transparent, non-vitreous, zirconia and zirconia- silica ceramic microspheres, useful as lens elements in retroreflective pavement markings. The microspheres are characterized by:(a) containing at least one additive metal oxide selected from alumina. magnesia, yttria and mixtures thereof;(b) an index of refraction greater than 1.6; and(c) being virtually free of cracks.These microspheres are formed by a sol-gel technique of extractive gelation (extracting carboxylic acid away from zirconyl carboxylate) of a sol in liquid medium such as hot peanut oil. The microspheres of this ceramic composition have been made with relatively large diameters, (e.g. 200-1000 micrometers) making them quite useful as lens elements in pavement marking sheet materials.
Patent KR-920005610-B1 (KR)
Inventor: HIRAMA KOOICHI
IPC: H03H9/56
Filed: 1986-04-11
Granted: 1992-07-09
Abstract: 내용 없음.
Patent KR-900004598-B1 (KR)
Title: Full-automatic work finishing machine with high-speed rotating barrel containers
Inventor: KOBAYASHI HISAMINE
IPC: B24B31/02
Filed: 1987-01-14
Granted: 1990-06-30
Abstract: The finishing machine includes several work finishing units each supported by a high-speed turret for carrying barrel containers to be driven for both orbital and axial rotations. It further includes a circulating transport path for carrying a barrel container from the unloading location where it is to be demounted from a work finishing unit to the loading location where it is to be mounted to the same unit. Various devices are disposed along the circular transport path between the unloading and loading locations which handle one barrel container and/or the works and abrasive media under the control of a central programmable sequential controller.
Patent KR-890002216-B1 (KR)
Title: Process for preparing cephalosporin derivatives
Inventor: JANG MOON-HO
IPC: C07D501/34
Filed: 1987-03-03
Granted: 1989-06-23
Abstract: Cephalosporin derivs. (of formula (I), R1=C1-4 aliphatic alkyl) are new.  Thus, suspend 7-amino-3-carbamoyloxymethyl-3cephem-4-carboxylic acid 2.73g into ethylacetate 75mL, add N-trimethylsyllylacetamide 5.20g at 30-35 deg.C with stirring (1.5 hr), cool to 1-3 deg.C, add 2-(fur-2-yl)-2-methoxyiminoacetic acid 1.86g, diphenyl-2-pyridon-1- yl-phosphate 3.77g and (Et)3N 1.53ml sequently at same temp. and stir for 3.5hr, add ethylacetate 80ml and water 80ml, adjust pH to 2.0 with 2N HCl and stir for 1hr at 0-5 deg.C to give 3- carbamoyloxymethyl-7-2-(fur-2-yl)2-methoxyiminoacetamide-ceph-3-em-4- carboxylic acid 3.86g (87.5% yield).
Patent KR-960002042-B1 (KR)
Inventor: YASUSHI MIYAUCHI
IPC: G11B7/243
Filed: 1987-05-01
Granted: 1996-02-09
Abstract: 내용 없음.
Patent KR-900005241-B1 (KR)
Title: Floating object observer
Inventor: KOHATA DAKEO
IPC: G01N21/00
Filed: 1987-08-14
Granted: 1990-07-21
Abstract: ing material in liquid is detected by directing light beam through fluid in light shielded viewing enclosure. Fluid is sealed in a viewing chamber (20) which is shielded from ambient light, a beam of light (16) from a source (10) is directed through the fluid in the chamber and an optical system (40) magnifies material floating in the fluid and appearing on the light beam.
Patent KR-890002036-B1 (KR)
Title: Spinning finished effect yarn's making method
Inventor: KIM JONG-JO
IPC: D02G1/00
Filed: 1987-09-22
Granted: 1989-06-08
Abstract: The invention feeds two different multifilaments respectively at different rates of feeding for air jets to entangle the two filaments with each other and produce numerous short loops and performs twisting, heatsetting and relaxation simultaneously at twist zone. One feeder feeds at 10-15% over-paid rate while the other feeds at 1.05-1.2 times the former rate to apply water.  The air nozzles slanted to the stretch direction blow air at 3.0-5.0 kg/sq. cm.  The produced yarn improves the touch feel with smoothness.
Patent KR-970008658-B1 (KR)
Inventor: SCHLOSSER KRAIG J
IPC: F16H48/08
Filed: 1987-12-09
Granted: 1997-05-28
Abstract: 내용없음
Patent KR-910003948-B1 (KR)
Inventor: KANAZAWA HIROTAKA
IPC: B60G3/20
Filed: 1988-04-04
Granted: 1991-06-17
Abstract: 내용 없음.
Patent KR-100195894-B1 (KR)
Inventor: CANAVAK THOMAS
IPC: A61K/
Filed: 1988-07-09
Granted: 1999-06-15
Abstract: 내용 없음.
Patent KR-940004580-B1 (KR)
Title: Dram access circuit
Inventor: IM DO-JIN
IPC: G06F13/16
Filed: 1988-07-30
Granted: 1994-05-25
Abstract: The access circuit for a 1M byte dynamic random access memory (DRAM) includes a control signal generator for receiving address signals from a microprocessor and generating a control signal; a DRAM control signal generator for generating a DRAM control signal; a controller; a multiplexer for multiplexing the control signal generated from the controller; and a DRAM for accessing high and low bytes. The circuit improves the function of a computer.
Patent KR-960007526-B1 (KR)
Title: 2-pyrimidinyl-1-piperazine derivatives for treating alcoholism
Inventor: TRABER JORG
IPC: A61K31/505
Filed: 1988-08-19
Granted: 1996-06-05
Abstract: Pharmaceuticals containing 2-pyrimidinyl-1-piperazine derivatives can be used for the treatment of alcoholism. 
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Patent KR-970005393-B1 (KR)
Inventor: BAGGEN CONSTANT PAUL MARIE JOZ
IPC: G11C29/00
Filed: 1988-08-23
Granted: 1997-04-15
Abstract: 내용 없음.
Patent KR-910007175-B1 (KR)
Inventor: TANAKA TADAO
IPC: B60G17/015
Filed: 1988-09-03
Granted: 1991-09-19
Abstract: 내용 없음.
Patent KR-970002607-B1 (KR)
Title: Pharmaceutical formulations containing melphalan
Inventor: POOLE STEPHEN WILLIAM
IPC: A61K9/00
Filed: 1988-11-18
Granted: 1997-03-06
Abstract: The present invention relates to a new two-component pharmaceutical formulation of melphalan in which the two components comprise     a) freeze-dried mephalan hydrochloride and b) a solvent-diluent comprising a citrate, propylene glycol and ethanol. Substantially pure melphalan, substantially pure melphalan hydrochloride and methods for preparing them are also described.
Patent KR-910004758-B1 (KR)
Title: The method & apparatus for wire insert a wire
Inventor: LEE JEONG-GAN
IPC: B21D39/04
Filed: 1988-12-09
Granted: 1991-07-13
Abstract: The method using magnetic force, is used for hot  drawing  in making the coated steel wire, which is especially coated with  the dissimilar metals. After the tube material and the core  wire  are coiled for forming  coil  shape  the  coiled  core  wire  (12)  is inserted to the edge of the fixed coiled tube (11) and is rotated. The apparatus comprises a rotary drum  (5)  attaching  magnet  and auxiliary rotating device; fixed  drum  (7)  being  arranged  with clearance at the left side of the drum (5); support  bar  (8)  for preventing eccentricity of the wire (12); support plate  (10)  for preventing gap between the tubes (11).
Patent KR-920000562-B1 (KR)
Inventor: SCHROCK ALAN K
IPC: C08G77/38
Filed: 1988-12-12
Granted: 1992-01-16
Abstract: 내용 없음.
Patent KR-910003735-B1 (KR)
Title: Thermal printing head
Inventor: KIM BON-JUNG
IPC: H01L27/15
Filed: 1988-12-17
Granted: 1991-06-10
Abstract: The device being used for non-impact type printer head, emits radiating light in  the  direction  which  is  parallel  with  the surface of PCB. The device  comprises  a  reflecting  surface  (8) being angled with the PCB surface (11);  wiring  (7,7-11,...)  and wiring (4) for common electrodes which are formed on  the  surface (11); light emitting element chinps (1,1-1,....) with a  plurality of light emitting parts  (2),  which  are  bonded  on  the  wiring (7,7- 11,...); pads (3,3-1,...) of (2) being opposite to the wiring (7,7- 11,...); the surface (8) being bonded with the part (2) so as to be opposite to each other.
Patent KR-910006845-B1 (KR)
Inventor: JUICHIRO TAKADA
IPC: B60R22/24
Filed: 1987-11-16
Granted: 1991-09-07
Abstract: 내용 없음.
Patent KR-910005022-B1 (KR)
Title: Preparation method of bricks
Inventor: OH JAE-DUK
IPC: C04B33/00
Filed: 1989-02-13
Granted: 1991-07-22
Abstract: A brick is produced by (a) mixing 75-85 wt.%  clay  of  8-15% water content with 12-15 wt.% sand of 7-12% water content  in  the mixer (1) and then mixing 12-20 wt.% cement  with  1-15  wt.%  red iron oxide in the mixer  (2),  (b)  agitating  the  mixt.  in  the agitator, (c) molding it in the mold to obtain a  brick,  and  (d) heat-curing the brick in 30-40 deg.C water  for  1-1.5  hr,  40-50 deg.C for 1hr and 60-75 deg.C for 1  hr.  The  brick  has  a  high compressive strength.
Patent KR-920006501-B1 (KR)
Inventor: ONISHI MASAYOSHI
IPC: B62D5/04
Filed: 1989-02-22
Granted: 1992-08-07
Abstract: 내용 없음.
Patent KR-0135289-B1 (KR)
Title: Pharmaceutical granulate
Inventor: OLTHOFF MARGARETHA
IPC: A61K47/38
Filed: 1989-02-24
Granted: 1998-04-23
Abstract: A wet granulate is provided containing a therapeutically useful substance having a water solubility 10 wt% or less and microcrystalline or microfine cellulose or a mixture of both, characterised in that substantial amounts of wet binders are avoided.   Tableting mixtures with the new granulate possess a good flow pattern and may be compressed to tablets which show an excellent disintegration behaviour.
Patent KR-960002058-B1 (KR)
Inventor: KITAMURA YOSHIHATS
IPC: F16D7/02
Filed: 1989-02-28
Granted: 1996-02-10
Abstract: 내용 없음.
Patent KR-920007649-B1 (KR)
Inventor: HIRATA TOICHI
IPC: B62D11/04
Filed: 1989-05-10
Granted: 1992-09-14
Abstract: 내용 없음.
Patent KR-910008711-B1 (KR)
Title: Transposing mode of electronic musical instrument
Inventor: HUH TAE-KYUNG
IPC: G10H1/20
Filed: 1989-06-28
Granted: 1991-10-19
Abstract: The method for shifting the play tone with  sequential  input of the keys  corresponding  to  the  present  and  desired  tones comprises steps:  a)  resetting  the  key  transpose  flag   when selecting the key transpose mode; b) identifying  the  key  number (a) if the next key is within the preset  region;  c)  identifying the key number (b) if the next is within the preset region; and d) performing the transpose as much as half tone upward  or  downward after calculating the (a) and (b) values.
Patent KR-940003053-B1 (KR)
Title: Preparing process of physiologically active substance with anticancer effect and substance obtained thereby
Inventor: SATO ICHIEI
IPC: A61K35/28
Filed: 1989-08-09
Granted: 1994-04-13
Abstract: Preparing process of physiologically active substance with anticancer effect and the substance prepared by the process. This process comprises: transplanting of cancer cells in a mammal abdominal cavity; administering an anticancer agent in the abdominal cavity; intravenously administering spleen cells extracted from a normal and the same kind of mammal in a vena of the mammal to which cancerous cells have been transplanted; collecting ascites retained in the abdominal cavity after elapse of a predetermined time period; and fractionating a supernatant liquid of the ascites by Cohn's fractionation to isolate Cohn V fraction of said supernatants.
Patent KR-0125091-B1 (KR)
Inventor: O'BRIEN JR WILLIAM D
IPC: C03B37/018
Filed: 1989-08-30
Granted: 1997-11-27
Abstract: 내용없음.
Patent KR-970006302-B1 (KR)
Title: Hanging dot elimination circuit
Inventor: KIM KYUNG-SUB
IPC: H04N9/77
Filed: 1989-08-31
Granted: 1997-04-25
Abstract: The hanging dot eliminating circuit is provided by the construction that a delayer(2), an adder(3) and a deducting part(4) are connected to an A/D converter(1), that the adder(3) is connected with a band-pass filter(5) and an adder(6) through a multiplier(8), that the deducting part(4) is connected with a low pass filter(7) connected whose outputting side is connected to the adder(6), a band-pass filter(13), a rectifier(17), a multiplier(21) and a low pass filter(24), that an outputting terminal of the adder(6) is connected with a band-pass filter(10) whose output side is connected with a deducting part(11) and an adder(12), the deducting part(11) and a multiplexer(14), that an outputting side of the band-pass filter(13) is connected to a multiplexer(15) through the adder(12) and is simultaneously connected directly to the multiplexer(15), that the band-pass filter(5) is connected to an input terminal of one side of an AND gate(18) through a rectifier(16) and simultaneously a multiplier(21) through a delaying circuit(20) is connected to another side of an OR gate(26) through a low pass filter(22) and a comparator(23), that an output of an AND gate(19) to which an output of the AND gate(18) and an output of the OR gate(26) are inputted, is connected to the multiplexers(14,15), whereby improving a quality of a screen.
Patent KR-920002481-B1 (KR)
Title: Clock system maintenance method in switching center
Inventor: LEE JAE-SUB
IPC: H04Q3/545
Filed: 1989-09-06
Granted: 1992-03-26
Abstract: The method comprises the steps of requesting and receiving  a hardware clock from a network sync. processor (NSP), checking  the received clock so that it does not fall between a set minimum  and a set maximum range to, if so,  provide  an  alarm  message  which requires an operator to provide information on a  reference  clock and to, if not, request and receive reference clocks from  all  of the processors. except  an  operation  and  maintenance  processor (OMP),  and  comparing  the  hardware  clock  with  the   received reference clocks to, if a difference is less than or  equal  to  a set time for more than the set  number  of  times,  determine  the hardware clock as a reference clock of the system and to, if  not, provide an alarm message which requires the  operator  to  provide information on a clock as necessary  to  determine  the  reference clock of the system.
Patent KR-0140213-B1 (KR)
Inventor: ISHIHARA NOBORU
IPC: H03K19/086
Filed: 1989-11-21
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-940006166-B1 (KR)
Title: Flat panel display connecting method
Inventor: CHOE SONG-BONG
IPC: H01R43/00
Filed: 1989-12-31
Granted: 1994-07-08
Abstract: The method for attaching a connector of a flat-type display device is arranged that a connector is compressed on a predetermined portion of a flat-type display device by a thermal compressing head, and at the same time, infrared rays of high calorie are irradiated to the attached portion of the connector, thereby firmly securing the display and connector.
Patent KR-920010736-B1 (KR)
Title: Ink jet array
Inventor: HOISINGTON PAUL A
IPC: B41J2/175
Filed: 1988-09-01
Granted: 1992-12-14
Abstract: In the representative embodiments of an ink jet array described in the specification, a linear array of ink jet orifices (31-34) is supplied with ink from pressure chambers (35-38) alternately disposed on opposite sides of the array to permit close spacing of the ink jet orifices. At the end opposite from the ink jet orifice, each pressure chamber (35-38) communicates with a low acoustic impedance chamber (43-46) to reflect negative pressure pulses from the pressure chamber back through the chamber as positive pulses and to prevent pressure pulses from being transmitted to the ink supply. In addition, a high-impedance passage (47-50) between the low acoustic impedance chamber associated with one pressure chamber and the pressure chamber for the adjacent ink jet provides a continuous flow-through passage from the ink supply port for one ink jet to the ink supply port for an adjacent ink jet. This permits continuous circulation by thermal convection of the ink when the ink jets are not in use to prevent settling of pigment in a pigmented ink and to transport ink containing dissolved air from the region of the ink jet orifice to a deaeration passage.
Patent KR-0137136-B1 (KR)
Title: Heat curable coating composition for cathodic electrodeposition
Inventor: SCHWERZEL THOMAS
IPC: C09D5/44
Filed: 1990-02-28
Granted: 1998-04-25
Abstract: The heat-curable coating agent according to the invention for cathodic electrodeposition, which is water-thinnable or protonation with an acid comprises A) 50 to 95% by weight of a chain growth polymerisation, polycondensation or polyaddition product having an average molecular weight of 500 to 20,000 and primary and/or secondary hydroxyl groups and primary, secondary and/or tertiary amino groups and (B) 5 to 50% by weight of a crosslinking agent, obtainable by reaction  a) of an aliphatic polyhydroxy compound and  b) of an aromatic polyhydroxy compound with  c) an aliphatic and/or cycloaliphatic polyisocyanate and d) a blocking agent.
Patent KR-920000484-B1 (KR)
Title: A brim-net feeding of the fish and the mussels
Inventor: SONG JUNG-SIK
IPC: A01K61/00
Filed: 1990-03-14
Granted: 1992-01-14
Abstract: The breeding fish cage is framed in  the  shape  of  a  vinyl green house of a half cylinder to be lined with the fishing net on the inner side and the cage detachably attaches float boxes (2) on both sides to charge or discharge water or air into the boxes  for sinking in or floating on water.  The  cross  pipes  at  the  cage bottom ends is arranged to have weights (4) each at the respective ends for steadying the cage that is  connected  by  ropes  to  the ground facility and supplied with feeds through the feeder (3)  on the top. The float boxes are connected through  pipes  with  water and air supplying units for floating actuation.
Patent KR-100201716-B1 (KR)
Inventor: MICHEL ADWORD GRIPIN
IPC: H04B10/27
Filed: 1990-03-20
Granted: 1999-06-15
Abstract: 내용 없음.
Patent KR-920004205-B1 (KR)
Title: Purifying apparatus for water tank
Inventor: KIM KYUNG-SOO
IPC: B01D35/00
Filed: 1990-03-30
Granted: 1992-05-30
Abstract: The tank for removing impure substance from water comprises a drain port (6) for clean water in the middle of  the  one-side,  a drain port (7) for impure substance  in  the  lower  part  of  the other- side, a drainage canal  (8)  for  leading  impure  substance which precipitates on the  lower  tank,  an  inclined  plate  (12) forming the rooms (C,D,E,F) with  partition  plates  (9,10,11)  to precipitate impure substances to the lower part of tank. An outlet port (13) mounted on the side of  the  upper  tank  (1')  prevents excessive storage of water supplied through the supply pipe (3).
Patent KR-930007540-B1 (KR)
Inventor: OKUMURA HIROSHI
IPC: B25J9/18
Filed: 1990-04-03
Granted: 1993-08-12
Abstract: 내용 없음.
Patent KR-920005573-B1 (KR)
Inventor: LEE KYE-JUN
IPC: C01C3/10
Filed: 1990-05-09
Granted: 1992-07-09
Abstract: 내용 없음.
Patent KR-940006494-B1 (KR)
Inventor: BARREAU GUY
IPC: C22B43/00
Filed: 1990-09-03
Granted: 1994-07-21
Abstract: 내용 없음.
Patent KR-930010729-B1 (KR)
Title: Isolation forming method of ic
Inventor: RA SA-KYUN
IPC: H01L21/76
Filed: 1990-11-13
Granted: 1993-11-08
Abstract: The method for forming an isolation region of a semiconductor device is characterized by (a) forming a base oxide  film  (3)  on the silicon substrate, and implanting a nitrogen ion into the film (3), (b) forming a nitride film (4) for an active region  mask  on the film (3), and removing the films (3,4) of  the  field  region, (c) implanting a field ion into the field region, and (d)  forming a field oxide film (5) into the field region by the heat oxidizing process. The method for the mfr. of a high grade device prevents a narrow width effect, and improves a punch-through characteristic.
Patent KR-930009212-B1 (KR)
Inventor: OKITANI OSAMU
IPC: C09D11/101
Filed: 1990-11-17
Granted: 1993-09-24
Abstract: 내용 없음.
Patent KR-930007178-B1 (KR)
Title: Apparatus for recopying compact disk
Inventor: HA TAE-YONG
IPC: G11B7/28
Filed: 1990-12-29
Granted: 1993-07-31
Abstract: The  apparatus  copies  voice  signals  and  control   data, generated from a regeneration-exclusive compact disk player, on  a writable disk. The apparatus comprises an input terminal (110) for inputting standard pulses; a first disk (12) storing data; a first rotary means (120); a first pickup  means  (140);  a  means  (160) modulating the RF signals, captured by the means (140),  into  EFM wave, and detecting synchronous signals; a servo  controller  (40) generating linear velocity control  signals  for  the  first  disk (12); a second disk (42), erasable and writable; a  second  rotary means (130), controlled by the servo controller (40), rotating the second disk (42); a second pickup means (150); a  laser  modulator (58).
Patent KR-930006108-B1 (KR)
Title: Nozzle exchanging device for electronic parts attached head
Inventor: PARK KU-UNG
IPC: H05K13/02
Filed: 1990-12-29
Granted: 1993-07-07
Abstract: The apparatus automatically changes  mount  head  nozzles  as required for mounting the components concerned. With  a  plurality of stand-by nozzles being inserted each in one of the  ports,  one of the ports is always empty to receive and keep a nozzle  removed from a mount head after a work. After  positioning  a  mount  head over the empty port, the nozzle on the head  is  lowered  for  the nozzle holder to be hooked by a hook member  of  the  port  to  be detached from the head and held for stand-by  for  use.  The  head raised moves to pick up the replacement nozzle in reverse  to  the detaching actuation. The apparatus improves work efficiency.
Patent KR-940011410-B1 (KR)
Title: Preparation of thermoplastic resin composition
Inventor: LEE CHAN-HONG
IPC: C08L67/02
Filed: 1991-01-21
Granted: 1994-12-15
Abstract: The thermoplastic resin is produced by blending at least 70 wt.pts. of a graft polymer resin, 5-25 wt.pts. of polybutylene terephthalate and at most 5 wt.pts. of a styrene-acrylonitrile copolymer resin, and dipping the blend into a solvent i.e. 95 % ethyl alcohol, gasoline or methylene chloride for 3 months. The graft polymer resin is produced by graft copolymerizing a mixt of 20-50 wt.pts. rubber latex having 0.25-0.35 of average particle size, 10-40 wt.pts. vinyl aromatic cpd., 30-60 wt.pts. vinyl cyane cpd., 2-6 wt.pts. acrylamide, 2-5 wt.pts. glycidyl(meth)acrylate, 0.2-0.5 wt.pt. polymerization initiator, 0.1 wt.pt. sodium phosphate, at most 3.0 wt.pts. emulsifier and 1.5-2.5 wt.pts. molecular wt. regulator.
Patent KR-950008503-B1 (KR)
Inventor: TAKADA KOJI
IPC: G05D16/10
Filed: 1991-02-08
Granted: 1995-07-31
Abstract: 내용 없음.