baber/WOPTO huggingface dataset:
Patent KR-840000555-B1 (KR)
Title: Heat rolls
Inventor: APPEL DAVID W
IPC: D21F1/00
Filed: 1981-03-09
Granted: 1984-04-20
Abstract: A fluid-heated roll (10) comprises an annular fluid chamber between the outer and inner shells (12, 16) with the heating fluid being diverted as it enters the fluid chamber so that it flows at an acute angle to the outer shell. The fluid enters the chamber via apertures in a circumferential groove(66) of the inner shell and the apertures(64) are partially covered to divert the heating fluid. The roll has a very uniform temperature across its surface and is particularly suitable for embossing or calendering thin cellulose or polymeric fiber webs or films.
Patent KR-840000237-B1 (KR)
Title: Preparation of phenols
Inventor: GEEM PAUL C VAN
IPC: C07C37/01
Filed: 1981-06-23
Granted: 1984-03-07
Abstract: Phenols were prepd. by oxidizing benzoic acid in the vapor phase with copper-contg. catalyst. The reaction uses as catalysts copper compds., vanadium compds., and Ag compds.  where the max. atomic ratio of vanadium to copper is 1:2, and that of Ag to copper is 1:2.  Produced phenols are substd. or unsubstd. according to benzoic acids.
Patent KR-840001164-B1 (KR)
Title: Arranging method of heating element
Inventor: SONG YO-SOB
IPC: H05B3/00
Filed: 1982-01-22
Granted: 1984-08-11
Abstract: The heating elements, which form thin plates and are made of carbon, are attached on to the substrate material (2) with spaces (4) that are placed one after another or in parallel. The heating elements are connected to a battery which serves as a power source, and so can be used in cold-weather jackets or shoes.
Patent KR-880001172-B1 (KR)
Title: Letter reproducing method
Inventor: HUSE SHIGERU
IPC: G06K15/00
Filed: 1982-06-10
Granted: 1988-07-02
Abstract: The system is used for storing and photo-typesetting characters stored in the form of data of contours.  Curved contours are not approximated by straight lines, but are approximated by curves, that is, the data is stored to obtain a curve which is approximated to the curve of the contour approximated to contours of characters being reproduced based upon the stored data.  End points and one or more reference points are stored for each segment according to the degree of the approximating curve.
Patent KR-920000573-B1 (KR)
Inventor: HARWOOD LEOPOLD
IPC: A61P27/12
Filed: 1982-10-08
Granted: 1992-01-16
Abstract: 내용 없음.
Patent KR-840001748-B1 (KR)
Title: Automatic yarnbell finishing apparatus
Inventor: PARK SUL-GAP
IPC: D04D7/06
Filed: 1983-07-11
Granted: 1984-10-18
Abstract: A gear(2) is set around a ratating plate(1). Another gear(3) is closely set to the gear(2), repeats the rotations and stops at intervals of 90 deg.C . A rotating wheel(4) rotates continuously regardless of the intermittent rotation of the rotating plate(1). A yarn-bell supporting pin(8) is set in the near side of the rotating wheel(4). A supplying part(13) consists of sewing device(9), which sews the yarn bundle; a supplying roller(10); and a cutter(11). A finishing part916) consists of a rotating blade(15) and a fixed blade(15').
Patent KR-920000559-B1 (KR)
Inventor: MIYOSHI KIMIOH
IPC: H01L21/58
Filed: 1983-12-16
Granted: 1992-01-16
Abstract: 내용 없음.
Patent KR-880001201-B1 (KR)
Title: Method for sweetening chewing gum
Inventor: PATEL MANSUKH M
IPC: A23L27/00
Filed: 1983-12-27
Granted: 1988-07-11
Abstract: The chewing gum compn. consists of a core comprising gum base, sweetener and flavouring, and a surface coating contg. a sweet protein selected from thaumatin and monellin, the sweet protein forming 0.5-100 ppm of the compn. by weight.
Patent KR-860002086-B1 (KR)
Title: Series type data communication and power transfer circuit with two lines
Inventor: SONG RAK-IN
IPC: H04L25/00
Filed: 1983-12-26
Granted: 1986-11-24
Abstract: A power and serial data transmission circuit with power lines consists of pulse generators(5,5') generating carrier pulses, NAND gates(G1, G1') receiving transmitting data, first band filters (1,1') providing a modulated sign wave, transformers(T1,T1'), a switching regulator(6) rectifying a power source(Vs) of the power line(L1,L2), second band pass filters(2,2'), a half-wave rectifier (3') rectifying the output of the second band-pass filter, a lowpass filter removing the carrier from the half-wave rectified signal, and demodulators(4,4') providing a corresponding signal to the transmitted  signal.
Patent KR-870001879-B1 (KR)
Title: Manufacture of water-soluble polyimide
Inventor: PIKE ROSCOE A
IPC: C08G73/00
Filed: 1984-10-20
Granted: 1987-10-20
Abstract: A water soluble polyimide is produced by adding water to a soln. of a polyamic acid in an organic solvent to ppte. the acid. The acid is filtered and washed with water and added to an aq. soln. of ammonia or a water soluble amine of sufficient concn. to a dissolve the polyamic acid.  The polyamic acid can be heated to form a polyimide without the hazard of using an organic solvent. The polyamic acid can be dried from the aq. soln. and remains water soluble.
Patent KR-860000825-B1 (KR)
Title: A method of and an apparatus for continuosly manufacturing molded slide fastener
Inventor: HASEGAWA AKIRA
IPC: B29D5/00
Filed: 1984-12-27
Granted: 1986-07-02
Abstract: Method involves (A) introducing thermoplastic synthetic resin successively into cavities around a circumferential surface of a die wheel while the latter is rotating. A strip of coupling element blanks is moulded. (B) The strip of coupling element blanks is continuously removed from the cavities. (C) The strip is then continuously folded about its longitudinal axis. While still hot it is put into a U-shaped cross-section to provide semi-finished coupling heads with legs on each side. Each of the folded coupling element blanks has a width (W2) defined jointly by a pair of the legs. This width, when finished, larger than predetermined widths (W1) of the side fastener coupling elements.
Patent KR-910007462-B1 (KR)
Inventor: MADIOT ANDRE
IPC: G21F5/00
Filed: 1985-04-22
Granted: 1991-09-26
Abstract: 내용 없음.
Patent KR-930004163-B1 (KR)
Inventor: RANDISI SAL
IPC: C10M169/04
Filed: 1985-07-30
Granted: 1993-05-21
Abstract: 내용 없음.
Patent KR-910002868-B1 (KR)
Inventor: MASUMOTO HAKARU
IPC: C22F1/10
Filed: 1985-08-14
Granted: 1991-05-06
Abstract: 내용 없음.
Patent KR-950000303-B1 (KR)
Title: Tissue plasminogen activator (tpa) analogs
Inventor: MAROTI KISS R
IPC: A61K38/00
Filed: 1986-12-12
Granted: 1995-01-13
Abstract: This invention discloses human tissue plasminogen activator (TPA) analogs. The analogs are TPA-like molecules that have had the native domain regions either rearranged, deleted, added or a combination thereof. The analogs are the product of the expression of recombinant DNA also described herein. Additionally, the present invention describes replication and expression plasmids containing the TPA-coding DNA sequences described above and suitable host microorganisms that are capable of expressing the TPA analogs after becoming transformed with an appropriate plasmid.
Patent KR-900002482-B1 (KR)
Title: High-frequency electric resistance welding method using irradiation with a laser beam
Inventor: MINAMIDA KATSUHIRO
IPC: B23K28/02
Filed: 1986-01-09
Granted: 1990-04-16
Abstract: Electric-high frequency resistance welding is combined with irradiation by a laser beam in a welding procedure in which a strip shaped workpiece is continuously formed into a tube in which the edges are brought toghther in a wedge shape.  The edges are heated by an electric high-frequency current and a laser beam is directed towards the apex of the weld preparation.  The cross section of the beam is in a range of 30-80% of the workpiece thickness of the butted edges.  Cross section and beam power are adjusted in rotation to welding speed and physical properties of the workpiece for minimum upset.
Patent KR-940003908-B1 (KR)
Inventor: GERARD JEAN-LOUIS
IPC: F16D55/224
Filed: 1986-05-21
Granted: 1994-05-09
Abstract: 내용 없음.
Patent KR-940004759-B1 (KR)
Inventor: TANAKA MAKOTO
IPC: B65D85/86
Filed: 1986-05-26
Granted: 1994-05-28
Abstract: 내용 없음.
Patent KR-890003937-B1 (KR)
Title: Rotational and retractable container holding device and conveyor therefor
Inventor: WILLISON BEVERLY G
IPC: B65G15/00
Filed: 1986-06-30
Granted: 1989-10-13
Abstract: The system is used for receiving newly formed containers and for conveying the containers through a series of bottle forming operations, including coating, labelling, etc..  A conveyor (56) is supported in contilever fashion by supports extending along the path.  A number of container holding devices extend in a horizontal orientation from one side of the conveyor.  These devices each include an inner housing slidably mounted on a supporting spindle and an outer housing rotatably mounted with respect to the inner housing.  A container gripper (76) is provided at the outer end of the outer housing for gripping a container by the neck.
Patent KR-890003585-B1 (KR)
Title: Coating method with a rainbow colors using a vaccume deposition
Inventor: KIM JAE-KUN
IPC: C23C14/24
Filed: 1986-07-05
Granted: 1989-09-25
Abstract: A coating method with rainbow colors using a vacuum deposition comprising the process of adapting tungsten or Mo plate to be deposited in independently heatable vacuum tank and depositing interfering film on Matrix phase by successive melting of Cd and Se, or Co and MgF, followed by successive depositing of TiO2, gives rainbow colors.
Patent KR-900001162-B1 (KR)
Title: Plant growth regulating triazoles
Inventor: RECK JAMES R
IPC: A01N43/653
Filed: 1986-11-12
Granted: 1990-02-27
Abstract: Triazoles of formula (I) or their botanically useful salts are new. In (I), X= -O- or -S-; Ar=substd. Ph by halo or C1-3 alkyl; R1=C1-4 alkyl; R2=hydroxy, C1-4 alkoxy or -NR4R5; R3= H or C1-4 alkyl; R4 and R5 are each H, C3-6 cycloaklyl or C1-3 alkyl, and may form pyrrolidino or piperidino by bonding with N atom. (I) are useful as a plant growth regulator.
Patent KR-900003769-B1 (KR)
Title: Flying height control method of magnetic head
Inventor: CHO JAE-SEUNG
IPC: G11B21/12
Filed: 1986-12-08
Granted: 1990-05-31
Abstract: Method for controlling the flying height of a magnetic head includes the following steps: (a) setting the control tracks on the outer side of a zero track and on the inner side of a final track; (b) detecting the signal of a control track with a magnetic head; (c) controlling the flying height of a magnetic head with microprocessor until the signal value is equal to the reference value; (d) storing the control signal value equal to a reference value in the register A, B; and (e) controlling the flying height of the magnetic head with the value of the stored control signal.
Patent KR-900007060-B1 (KR)
Title: Call automatic distributing system
Inventor: BAE KEUN-WAN
IPC: H04M3/22
Filed: 1987-10-13
Granted: 1990-09-27
Abstract: The circuit for processing the subscriber line management is connected to a trouble report trunk (9). The reported channel is transfered to a desk trunk (12) through a time switch (11) whose time slot distributes the trunk to a information desk (16) sequentially and evenly. A CPU (19) supervises the report call of the information desk and provides the hold signal to the call if the line is busy. A RAN trunk (15) provides the guide message at first hold and music at second hold. An auxiliary controller (30) controls the peripheral printer (20,23) with a monitor (24) and keyboard (25).
Patent KR-920004503-B1 (KR)
Inventor: TOMITA MASATOSHI
IPC: C23C28/00
Filed: 1987-11-20
Granted: 1992-06-08
Abstract: 내용 없음.
Patent KR-920008714-B1 (KR)
Inventor: HELLIGER MARTHA C
IPC: B01D17/02
Filed: 1987-11-20
Granted: 1992-10-08
Abstract: 내용 없음.
Patent KR-910003428-B1 (KR)
Inventor: RICHARD WAREING J
IPC: G02B6/44
Filed: 1986-05-16
Granted: 1991-05-31
Abstract: 내용 없음.
Patent KR-900006375-B1 (KR)
Title: Tool bit for use with mechanical socket tool sets
Inventor: LEE SOO-WOONG
IPC: B25B27/18
Filed: 1988-05-07
Granted: 1990-08-30
Abstract: The socket wrench comprises a ratchet wrench comprising a handle, a driver wheel rotatably mounted in one end of the handle along an axis perpendicular to the handle, and ratchet for connecting the driver wheel to rotate with the handle around the axis in only one direction, and a socket detachably connected to the driver wheel, wherein the improvement comprises, the socket comprising a barrel of uniform polygonal transverse section having an axial polygonal wrenching aperture at the centre and a slant inward chamfer at the outer surface of each end of the barrel.
Patent KR-910005823-B1 (KR)
Title: Scan converter
Inventor: KO HAN-IL
IPC: H04N5/66
Filed: 1988-05-24
Granted: 1991-08-03
Abstract: The scan converter converts the vertical resolution  rate  to double one as considering the picture movement so that the natural motion of the picture is  reproduced.  The  interpolation  signals produced by 1H and 262H delay elements where H is  the  horizontal scanning period are distributed properly according to  the  output of a detector (20)  detecting  the  motion  of  the  picture.  The interpolated  scanning  lines  against  the   original   one   jis sequentially scanned so that the smooth motion is reproduced.
Patent KR-910008383-B1 (KR)
Inventor: IWAI RYOU
IPC: G06F9/445
Filed: 1988-06-16
Granted: 1991-10-15
Abstract: 내용 없음.
Patent KR-900004878-B1 (KR)
Title: Process for preparing of quinoline derivatives
Inventor: KIM YU-SEUNG
IPC: C07D401/04
Filed: 1988-06-17
Granted: 1990-07-09
Abstract: Quinolone derivs. of formula (I) are prepd. by the cyclization of a cpd. of formula (II) in the presence of metal hydrides and organic solvents. In the formulas, R1 is halogen or substd. amino gp. e.g. pyrrolydinyl, imidazolyl, piperidinyl, piperazinyl, pyridyl etc.; R2= C1-3 alkyl; X= halogen. (I) are useful as potent antibacterials.
Patent KR-950000126-B1 (KR)
Title: Playing circuit & method of track jump
Inventor: HA TA-YONG
IPC: G11B7/00
Filed: 1988-07-19
Granted: 1995-01-10
Abstract: The circuit includes a tracking-error signal generator (4) which indicates a tracking error, an amplifier (5) which amplifies the error signal, a mode-selection switch (7) which has an auto track mode (7a) and jump mode (7b) in the operation of the first track jump of an optic disk drive, a pulse switching point decision unit (200) which generates an decision signal of accelerating/decelerating pulse switching point (TRZ), a microprocessor which not only operates the mode selection the switch (7) but also generates control signals (D0-D7), and a digital-analog converter (12) which generates a jump pulse to a coil drive circuit (8) with the control of a microprocessor (11) in the jump mode.
Patent KR-910009486-B1 (KR)
Title: Expandable collapsible product and method and apparatus for its manufacture
Inventor: NEFF CRAIG A
IPC: B31D3/02
Filed: 1988-08-26
Granted: 1991-11-19
Abstract: An expandable collapsible product is made by providing a pleated sheet (8,10) having legs (20) which are made by securing two parts of a fold (17) together. Two sheets are combined by securing the end of a leg (20) to a crease (16) or a leg (20) of an opposite sheet. The sheet material can be folded to provide alternating taller folds (17) and shorter folds (16), and the taller folds are modified to provide the legs (20) by glueing parts of the taller folds (17) together. Glueing can be accomplished by moving glue heads across the sheet at high velocity through the use of linear motors. The glue lines may be heated after being laid down by the use of electro-magnetic radiation, preferably from a high-powered laser. The finished product may be used as insulated window coverings, or the like.
Patent KR-0152433-B1 (KR)
Inventor: MALHERBE ROGER FRANCOIS DR
IPC: C08K5/3435
Filed: 1988-09-21
Granted: 1998-10-15
Abstract: 내용 없음.
Patent KR-910009881-B1 (KR)
Inventor: NINOMIYA YOUIZI
IPC: H04N19/50
Filed: 1988-09-28
Granted: 1991-12-03
Abstract: 내용 없음.
Patent KR-920003932-B1 (KR)
Inventor: DAKAYUKI OZAGGI
IPC: G01R31/26
Filed: 1989-05-10
Granted: 1992-05-18
Abstract: 내용 없음.
Patent KR-910005286-B1 (KR)
Title: Method making of mayonaise
Inventor: LIM DAI-WON
IPC: A23L27/60
Filed: 1989-07-07
Granted: 1991-07-24
Abstract: A  process  for  making  a  myonaise  based  on  soybean  (I) comprises (A) boiling (I) milk from swelled (I)  for  10  min.  to inactivate (I)'s lipoxidase, (B) aggregating to get tofu of 80-85% water    content    from    (A)    with    0.2-0.5%    MgCl2    or glucono-delta-lactone, (C) mixing 70 part of (B), 20 part  of  (I) oil, 2 part of seasoning and additives, 2.5 part of vinegar, small amount of salt and sugar and 0.05 part of natural gum  and  gluten to improve texture, (D) 1st homogenizing under 730 mmHg to  remove foams, (E) sterilizing (D) at 80-90 deg. C for 50-60 min. for long shelf life, and (F) 2nd homogenizing at 3600  rpm  10-15  min.  to prevent aggregation. The cholesterol in eggs is substituted.
Patent KR-920001449-B1 (KR)
Title: Process for the colorimetric determination of an analyte by means of enzymetic oxidation
Inventor: HINNES JOACHIM
IPC: G01N33/68
Filed: 1989-08-09
Granted: 1992-02-14
Abstract: The invention relates to a method for the colorimetric determination of an analyte by means of enzymatic oxidation of the analyte in the presence of an electron acceptor and determination of the reduced electron acceptor by colour formation as a measure of the amount of the analyte, characterised in that the analyte is oxidised with an appropriate oxidoreductase in the presence of a substance from the group of compounds with nitrogen in an oxidation state between +1 and -1 as direct electron acceptor, and an agent suitable for this purpose. 
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Patent KR-0143084-B1 (KR)
Title: Heparin fragments and fractions with anti-hiv action
Inventor: OTTENHEIJM HENRICUS CARL J
IPC: A61K31/715
Filed: 1989-08-21
Granted: 1998-07-15
Abstract: The invention relates to the use of heparin fragments and fractions with an anti-thrombin activity which is less than 50 U/mg for the preparation of a medicament which inhibits or prevents the replication of the human immunodeficiency virus (HIV).
Patent KR-960014594-B1 (KR)
Inventor: DAKKEHANA DASSUO
IPC: D03D47/34
Filed: 1989-10-11
Granted: 1996-10-16
Abstract: 내용 없음.
Patent KR-910008965-B1 (KR)
Title: Printing method of midsole
Inventor: HA BONG-JU
IPC: A43D95/06
Filed: 1989-12-20
Granted: 1991-10-26
Abstract: A midsole having grooves on its side walls is placed within a film tube of a length 5-10cm longer than the length of the midsole for the midsole in wrapping of the film to be heated in a  heating chamber at 90-130 deg.C for 10-30 sec to obtain a tightly  wrapped midsole. Then, an iron heated to  50-70  deg.C  applies  over  the groove to cut and remove the film covering  off  the  groove.  The uncovered groove is sprayed  with  a  coloring  agent  to  form  a coating layer over the inner face of the groove. After 1 to 2 min, the whole wrapping film is removed off the midsole to produce  the final midsole product.
Patent KR-920003168-B1 (KR)
Inventor: SCHUSTER RICHARD L
IPC: B65D5/10
Filed: 1988-08-05
Granted: 1992-04-23
Abstract: 내용 없음
Patent KR-930009779-B1 (KR)
Inventor: MORI YOSHIHIRO
IPC: G11B27/034
Filed: 1990-03-28
Granted: 1993-10-11
Abstract: 내용 없음.
Patent KR-930012168-B1 (KR)
Inventor: SHIMOTE YUJI
IPC: G11B11/10
Filed: 1990-05-10
Granted: 1993-12-24
Abstract: 내용 없음.
Patent KR-930001774-B1 (KR)
Title: Control system of kerosene fan heater
Inventor: MUN JUNG-KI
IPC: F24H9/20
Filed: 1990-07-31
Granted: 1993-03-13
Abstract: The voltage control apparatus,  used  for  the  kerosene  fan heater, prevents the heater  overheating  in  the  surged  voltage range and the heater underheating in the low  voltage  range.  The apparatus comprises an input power voltage detector (1)  detecting the power voltage supplied for an AC power  source  (1);  a  power tansformer (3) transforming 220 volt into 110 volt when the supply power voltage is 220 volt; a heater controller  (4)  processing  a phase control according to an output signal  of  a  microprocessor (7) connected with the input power voltage detector (1); a  heater temperature sensor (6).
Patent KR-940000388-B1 (KR)
Inventor: OKUMURA YOSHINORI
IPC: H01L21/336
Filed: 1990-09-22
Granted: 1994-01-19
Abstract: 내용 없음.
Patent KR-0148264-B1 (KR)
Inventor: RIVIER JEAN EDOUARD FREDERIC
IPC: A61P25/02
Filed: 1989-09-28
Granted: 1998-10-15
Abstract: 내용 없음
Patent KR-960016031-B1 (KR)
Inventor: NEKO NORIAKI
IPC: B29C45/77
Filed: 1990-02-26
Granted: 1996-11-25
Abstract: 내용없음.
Patent KR-930009064-B1 (KR)
Title: Communicating method between two systems by using fifo
Inventor: RYU SANG-SHIN
IPC: G06F13/10
Filed: 1991-02-21
Granted: 1993-09-22
Abstract: The method consists of a CPU, a EPROM,  a  RAM,  a  timer,  a interrupt controller, and a FIFO. Transmission messages are stored after detecting the  message  length  and  free  buffer  area  and comparing each other. The message is transmitted after reading and testing the status of FIFO. If the status is free, the  input  and output pointers of transmission memory buffer are read to test the presence of messages. Then if there  are  messages  to  send,  the message pointed out by the output pointer is written in  the  FIFO and the output pointer is increased as  much  as  message  length. When the output pointer of transmission memory  buffer  points  to the  end  of  area,  it  is  initialized  to  the  start  of   the transmission  memory  buffer  and  sends  the  maximum  number  of messages.
Patent KR-0177173-B1 (KR)
Inventor: ARITA KANJI
IPC: A23L7/109
Filed: 1991-05-30
Granted: 1999-02-01
Abstract: 알루미늄제 용기 내에, 삶은 면 또는 찐 면과 소스류와를 소스류가 면의 위쪽 표면전체를 덮게끔 수용되어 있고, 적어도 면이 동결되고, 전체가 표시되어 있는 것으로 된, 요리할 때에 눌어 타 붙지 않는 풍미가 우수한 오븐 또는 오븐토스터 가열용 용기에 들어 있는 냉동면.
Patent KR-970010221-B1 (KR)
Title: Safety length displaying safety apparatus
Inventor: AHN JUNG-OH
IPC: B60Q1/54
Filed: 1991-06-24
Granted: 1997-06-23
Abstract: The present invention relates to a running direction and automatic speed indicator and safety distance indicator radiating device. Sensors (1, 1') sensing the front wheel rotating angle are provided to front wheels steering link (6) and a car body (7), and  a laser light radiating device (4) is moved up and down by a step motor light (3) in response to the speed of the step motor light (3)'s axis (8) to indicate the safety distance from a car in front of this car and the speed by dots and lines. A running direction indicating motor (2) is fixed on the car's front to indicate the speed, direction and safety distance on the road.
Patent KR-100205680-B1 (KR)
Title: Process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates
Inventor: SCHERZER DIETRICH DR
IPC: C07C263/20
Filed: 1991-07-06
Granted: 1999-07-01
Abstract: The invention relates to a process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) having a reduced iodine colour value by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at an elevated temperature, wherein, after the end of the phosgenation, at least one monohydric or polyhydric polyoxyalkylene alcohol, preferably having a functionality of 2 to 3, and advantageously having a hydroxyl number of 20 to 1,800, or a mixture thereof is incorporated into the reaction mixture in an effective amount, advantageously in an amount of 0.1 to 10% by weight, based on the weight of the crude MDI, the phosgene and the inert organic solvent are then separated off, optionally up to 5% by weight, based on the weight of the crude MDI, of at least one phenol-based antioxidant and/or aryl phosphite are added to the reaction product and the reaction mixture is subjected to a thermal treatment.
Patent KR-940003945-B1 (KR)
Inventor: SAGARA MAKOTO
IPC: B23B39/02
Filed: 1991-07-10
Granted: 1994-05-09
Abstract: 내용 없음.