baber/WOPTO huggingface dataset:
Patent KR-820000777-B1 (KR)
Title: Process for preparing n-ethylcarbanilic acid (3-methoxycarbonylamino) phenylester
Inventor: ARNDT F
Filed: 1982-01-12
Granted: 1982-05-10
Abstract: Title compd(I), useful as herbicides, was prepd. by the reaction of compd. II and III at 0-100oC in the presence of tert. organic base.  Thus, 16.7 g 3-hydroxy-carbanilic methyl ester and 2.3 g sodium methylate were reacted in anhydrous methanol.  Obtained product and 18.4 g N-ethyl-N-phenylcarbamoyl chloride were stirred at 30oC in methylisobutylketone, and stirred again at 70oC for 1 hr to give 27.3 g N-ethylcarbanilic-3-methoxycarbonylamino)phenylester(m.p. 110-110.5oC).
Patent KR-860001307-B1 (KR)
Title: Solenoid operated fuel injector and contol valve
Inventor: WILBER DANIS A
IPC: F02M59/46
Filed: 1982-02-22
Granted: 1986-09-11
Abstract: The assembly includes a unit injector having a main pumping plunger and a shuttle piston selectively connected to the pumping plunger by means of a hydraulic link controlled by a ball-type solenoid operated valve. The valve includes a housing containing a valve cavity in which a ball is positioned for movement between a closed position and open position in less than one millisecond. This controls the timing and metering function of the fuel injector. The ball is biased to the closed position by a spring and is moved to an open position spring surrounding the operator stem. The operator stem is withdrawn by energization of solenoid to allow the ball to be moved to the closed position by the ball spring.
Patent KR-860001903-B1 (KR)
Title: Mercapto acyl-carnitines process for their preparation
Inventor: TINTI MARIA ORNELLA
IPC: A61K31/22
Filed: 1982-03-31
Granted: 1986-10-24
Abstract: Mercapto acyl-carnitines (I) [X-=halogen ion, R=C2-10 mercapto acyl! are prepd. for use as medicines for skin disease and respiratory organ disease. Carnitine hydrochloride is reacted with halogen acyl chloride in inert organic solvent at 30-60≰C to give halogen acyl carnitine. The halogen acyl carnitine is reacted with a compd. selected from alkali metal sulfide and acid sulfide at neutral pH, and held at room temp. to give the title compd..
Patent KR-880000240-B1 (KR)
Title: Tape plauing control apparatus
Inventor: YOSHINO TADASHI
IPC: G11B15/32
Filed: 1983-10-15
Granted: 1988-03-15
Abstract: The apparatus includes detectors for sensing revolution information in accordance with the respective revolution numbers of a feed reel stand and a winding reel stand.  A mixing circuit adds. as voltages, the revolution information of both detectors. A circuit compares the output of the mixing circuit with a reference signal to provide a comparison output which is used by a controller to control the revolution number of a winding reel motor.  The apparatus also includes a detector for sensing that at least the tape-winding- diameter of the winding reel is a given diameter or less with the use of the revolution information of both detectors.
Patent KR-910005103-B1 (KR)
Inventor: MACLEROS RICHARD L
IPC: G11B23/38
Filed: 1983-11-21
Granted: 1991-07-22
Abstract: 내용 없음.
Patent KR-920000203-B1 (KR)
Inventor: SAGAWA BRURT K
IPC: B41M5/337
Filed: 1984-01-17
Granted: 1992-01-10
Abstract: 내용 없음.
Patent KR-860001024-B1 (KR)
Title: Process for preparing 1-(4-chlorobenzoyl)-5-methoxy-2-methyl-3-indol acetic acid esters
Inventor: SO JONG-JIN
IPC: C07D209/12
Filed: 1984-02-10
Granted: 1986-07-28
Abstract: Compds. I (R = alkyl, alkenyl, alkoxyalkyl, substd. aryl, aryl, arylalkyl, or cyclo-alkyl) were prepd. Thus, 300 ml dichloromethane was mixed with 10.73g 1-(4-chlorobenzoyl)-5-methoxy-2methyl-3-indole acetic acid and 3.96g 5-methyl-2-mercapto-1,3,4thiadiazole. This mixt. was treated with N,N-dicyclo hexyl carbo diimide and 4- (dimethylamino) pyridine for 6 hr to give 14.02g yellow product.
Patent KR-860001069-B1 (KR)
Title: Time sharing access control method of common ram in multiprocessor system
Inventor: LEE KWANG-MU
IPC: G06F12/02
Filed: 1984-08-03
Granted: 1986-08-04
Abstract: A time sharing access control method for a common RAM prevents signal conflict at the data bus while communicating with different systems. One period of the pulse posseses n control pulses (n is a number of CPUs connected in this system) which are provided to each CPU sequentially. While one control pulse is provided to one CPU, other accesses of different CPUs are prohibited so that simultaneous read or write functions with a number of CPUs in the common RAM are not possible.
Patent KR-880001617-B1 (KR)
Title: Apparatus and method for continuously weighing and dividing dough
Inventor: URUSHIJAKKI SEJIGI
IPC: G01G13/285
Filed: 1984-11-17
Granted: 1988-09-02
Abstract: Continuously operating dough conveyor (1) passes through a weighing station (4) which emits a signal when a predetermined weight of dough has passed.  This signal operates a dough divider (15) which severs a length of dough (12).  Pref. the weighing station comprises a load sensor which is activated at a fixed point along the conveyor.  An integrator calculates the total dough weight which has passed the sensor since the integrator was preset.  A comparator compares the output of the integrator with a reference signal corresponding to the required dough weight and activates the divider when the comparator is triggered.  The weighing station is coupled to a head which measures the speed of the conveyor.
Patent KR-900006311-B1 (KR)
Title: Magnetic recording and reproducing apparatus
Inventor: TAZUMI KEISUKE
IPC: G11B15/665
Filed: 1985-03-04
Granted: 1990-08-28
Abstract: The apparatus pulls out the magnetic tape from a tape cassette and records/reproduces the signal with a rotary magnetic head drum. The apparatus includes magnetic tape pulling means (5,6) for pulling out the magnetic tape and transfering the magnetic tape to the rotary head drum, position decision fixing means, a sash element (1-3) having guide grooves (3-3,4-3) for the magnetic tape pulling means.
Patent KR-890000612-B1 (KR)
Inventor: SATAJEM TOSHIHIKO
IPC: B65G15/42
Filed: 1985-04-20
Granted: 1989-03-22
Abstract: 내용 없음.
Patent KR-890002508-B1 (KR)
Title: Display utilizing gas flame
Inventor: GANAMARU DOSHIHISA
IPC: G09F9/00
Filed: 1985-05-29
Granted: 1989-07-10
Abstract: One or more burners (3) generate flames (2) at flame nozzles (1) to display a desired shape or pattern of flames.  A fine metal powder spray device (5) connecting to gas ripe supplies in mist fine powder of a metal or metal compound or its aqueous solution. Each burner (3) combined with four nozzles (6) can display a flower shape with the flames (2) given at the tips (1) of the nozzles (6).
Patent KR-890003820-B1 (KR)
Title: Burner device
Inventor: YOSHINAGA SADAO
IPC: F23D14/28
Filed: 1985-07-06
Granted: 1989-10-05
Abstract: A valve has a passage to which fuel is supplied from a body, the passage including a variable control member.  A combination device comprises a nozzle supporting member connected to the side of the valve and in communication with the passage.  A nozzle pipe, whose rear end is connected to the supporting member, is bored with an air intake hole opened and closed by an air control cylinder rotatably and retractably fitted while permitting a coiled spring to act.  A nozzle head is fitted into a nozzle tip at the extreme end of the nozzle pipe to form a passage into a main passage and a sub-passage.
Patent KR-910009324-B1 (KR)
Inventor: KOSER JAMES R
IPC: H01R27/00
Filed: 1985-09-20
Granted: 1991-11-09
Abstract: 내용 없음.
Patent KR-890004436-B1 (KR)
Title: Basic signal playback devices
Inventor: DANABAE DOSIYOKKI
IPC: H04N7/035
Filed: 1985-09-28
Granted: 1989-11-03
Abstract: The circuit generates a reference signal in phase with an incoming synchronising signal such as the horizontal synchronising signal in television receivers.  A clock signal is divided by a factor N determined by a phase comparison loop.  A decoder connected to the counter produces the reference signal and a reset signal for the counter.  A phase comparator which compares the phase of the regenerated reference with the incoming signal is followed by a phase discriminator which provides one of three outputs to indicate whether in phase, ahead or delayed.
Patent KR-900005667-B1 (KR)
Title: Semiconductor memory device
Inventor: AOYAMA GAEZO
IPC: G11C11/4076
Filed: 1985-11-18
Granted: 1990-08-03
Abstract: The semiconductor memory device, whose pairs of bit lines are connected to a pair of data buses, are divided into several blocks each comprising a number of parted memory cells, a pair of switching elements, and a block sense amplifier. The block sense amplifier has different driving abilities respectively so that the sense amplifier in the farthest block from the data bus has the most driving ability, the sense amplifier in the block nearer to the data bus has less driving ability, and the sense amplifier in the nearest block to the data bus has the least sensing ability. There is only one sense amplifier activated in a selected block, which is a block having a memory cell to be accessed.
Patent KR-900004774-B1 (KR)
Title: Process for producing mineral fiber sheet
Inventor: AGIYAMA DADASI
IPC: D21J1/00
Filed: 1986-06-28
Granted: 1990-07-05
Abstract: A mineral fiber board is prepared by the stages of manufacturing a moistured mineral fiber mat, layering the paste of mineral fiber on the mat,  making shapeless figures of unevenhess on the mat with moucing forward by rolling the figured roller, dehumidifying by blowing air on the mat, sucking in the other surface of the mat, and heating and drying. The mineral fiber board has a good fireproof, insulation, sound-absorption and bending strength.
Patent KR-940007613-B1 (KR)
Title: Identification system
Inventor: KATZENSTEIN HENRY S
IPC: G01D5/20
Filed: 1987-03-14
Granted: 1994-08-22
Abstract: A reader identifies information, such as the identity of an object at a transponder, provided in binary form by the transponder. The reader initially generates a pulse which activates the transponder into transmitting a series of signals, such as by magnetic induction, to the reader. Upon each count of a particular number of signals in the reader, the reader generates an additional pulse which causes the transponder to transmit a new series of signals to the reader. The generation of the pulses by the reader may occur through the charge and discharge of energy in a storage member such as a capacitance. The series of signals produced by the transponder may have either a first frequency or a second frequency. The signals may be generated in each sequence at the first and second frequencies in an order dependent upon (a) the binary code identifying the object at the transponder and (b) the polarity of the pulse produced by the transponder in such sequence. The signals may be generated at the second frequency by connecting a capacitance across a coupling coil at the transponder. The reader then identifies the information by demodulating the signals received by it at the first and second frequencies. The reader is able to interrupt at any time the generation of the sequences of signals at the transponder when it does not receive the signals transmitted by the transponder. The reader then operates on a free running basis to generate pulses of opposite polarity at a relatively low frequency. In this way, the reader is constantly prepared to activate the transponder when the transponder becomes subsequently disposed within the effective range of the reader.
Patent KR-890005300-B1 (KR)
Inventor: MIURA DOHORU
IPC: C07C67/343
Filed: 1987-03-18
Granted: 1989-12-20
Abstract: 내용 없음.
Patent KR-970005334-B1 (KR)
Title: Antifoaming method in liquid pharmaceutical preparation
Inventor: KARL-DETLEF SCHWABE
IPC: A61K9/10
Filed: 1987-05-29
Granted: 1997-04-15
Abstract: There is described the use of ethylene oxide/propylene oxide block copolymers in the control of foam in pharmaceutical preparations, in particular those for parenteral application, and furthermore liquid pharmaceutical preparations and their production.
Patent KR-910001266-B1 (KR)
Inventor: SEDAM JESON K
IPC: G07F13/06
Filed: 1987-07-20
Granted: 1991-02-26
Abstract: 내용 없음.
Patent KR-950004925-B1 (KR)
Title: Explosively operated tool
Inventor: CENTER WARREN A
IPC: H01R43/027
Filed: 1987-10-02
Granted: 1995-05-16
Abstract: Power tool for the assembly of electrical connectors including a chamber for receiving an explosive element and a firing element associated therewith. The invention is used in assembling electrical connectors installed between a tap wire and a main power cable.
Patent KR-950014720-B1 (KR)
Title: Article of ceramic material and production thereof
Inventor: ALLFORD NEIL M
IPC: C04B35/58
Filed: 1988-04-21
Granted: 1995-12-13
Abstract: A process for the production of a shaped article of a ceramic material in which a composition comprising particulate ceramic material and a liquid medium is shaped, the liquid medium is removed from the shaped composition, and the composition is heated to sinter the particles of ceramic material in which the composition is subjected to high shear mixing such that in the shaped article which is produced the mean maximum size of flaw is less than 25 microns. Also, a shaped article of sintered particulate ceramic material in which the mean maximum size of flaw is less than 25 microns and in which the minimum dimension of the shaped article is in excess of 0.1 mm.
Patent KR-930011759-B1 (KR)
Inventor: KOJO HISASHI
IPC: C08J5/18
Filed: 1988-04-30
Granted: 1993-12-20
Abstract: 내용 없음.
Patent KR-940003084-B1 (KR)
Inventor: TANOI SATORU
IPC: H03K19/177
Filed: 1988-04-30
Granted: 1994-04-13
Abstract: 내용 없음.
Patent KR-910003462-B1 (KR)
Title: Control method of power supply to cdp
Inventor: CHO HUI-CHUL
IPC: G11B19/28
Filed: 1988-05-18
Granted: 1991-05-31
Abstract: The method using the time limsts  decided  according  to  the repeat one, repeat all and, pause, stops the motor and  the  power supplied to the CDP when the mode is not changed  until  the  time limit is over. The method includes steps: (A) checking the endless play mode input; (B) checking the pause mode so that the CDP  when the time limit is over; (C) stopping the CDP when the  time  limit set according to the repeat one-mode is over; and (D) checking the all repeat mode input when the last music is over so that the  CDP plays the first music when the time limit is not over or stops the CDP when the time limit is over.
Patent KR-960006351-B1 (KR)
Inventor: SMOLINSKI CHARLES A
IPC: G09F15/00
Filed: 1988-05-28
Granted: 1996-05-15
Abstract: 내용 없음.
Patent KR-0156908-B1 (KR)
Inventor: YOSHITOSHGI YOU
IPC: G11B7/12
Filed: 1988-07-29
Granted: 1998-12-15
Abstract: 내용 없음.
Patent KR-920004768-B1 (KR)
Inventor: WAKATZKI NOBORU
IPC: G01P15/105
Filed: 1988-08-18
Granted: 1992-06-15
Abstract: 내용 없음.
Patent KR-910002366-B1 (KR)
Title: Method for production of poly styrene foam articles
Inventor: CHONG TAE-GYU
IPC: B29C44/42
Filed: 1988-10-05
Granted: 1991-04-20
Abstract: The styrene foam moulding article is produced and moulded  by melt- adhering the styrene prefoam particles by supplying steam  in state of first vacuum which the inner  pressure  of  the  mold  is about 380 mmHg, and then discharging the steam from  the  mold  to main vacuum tank by making the second vacuum state which the inner pressure of the mold is 450 mmHg.
Patent KR-970001438-B1 (KR)
Inventor: MERRY RICHARD P
IPC: F01N3/021
Filed: 1988-12-03
Granted: 1997-02-06
Abstract: 내용 없음.
Patent KR-900006997-B1 (KR)
Title: Novel streptomyces tende and process for producing of nicomycinx
Inventor: HWANG SUN-GU
IPC: C12N1/20
Filed: 1988-12-30
Granted: 1990-09-25
Abstract: A method for producing antibiotics nikkonycin X by mutagentreated microorganism comprises (a) treating spores of Streptomyces tendae ATCC 31160 with NTG at 37 deg.C, (b) treating the above spores with NQO at 37 deg.C, (c) selecting mutants which are much nikkomycin X producing strains, (d) culturing the selected mutant in liquid medium contg. 2.0% of 20mM leucine soln. and 2.0% of 1.0% sorbitol soln. at 28 deg.C for 6 days and (e) purifying the cultured broth by ultrafiltration and gel filtration. Nikkomycin is an effective fungicide for plant protection.
Patent KR-0171045-B1 (KR)
Inventor: KIM JOO-HAN
IPC: G11C11/00
Filed: 1989-02-28
Granted: 1999-03-30
Abstract: 내용 없음.
Patent KR-0126677-B1 (KR)
Title: Antiviral pharmaceutical composition
Inventor: SUZUKI NOBURO
IPC: A61K38/21
Filed: 1989-06-01
Granted: 1998-04-01
Abstract: Dipyridamole or a salt thereof enhances the antiviral activity of IFN- alpha .
Patent KR-960010371-B1 (KR)
Title: Filter for the separation of solids from heat gaseous of liquid media
Inventor: WALTER HERDING
IPC: B01D29/33
Filed: 1989-06-03
Granted: 1996-07-31
Abstract: The invention relates to a filter for separating solid particles from hot, gaseous or liquid media, which comprises a heat-resistant carrier material having a large pore width and a likewise heat- resistant material of smaller pore width as a covering layer for the carrier material. 
<??>While the carrier material can, for example, consist of ceramics, the covering layer is formed by a multiplicity of grains of a material similar or related to the carrier material, so that a bond of identical or approximately identical materials or a eutectic of miscible materials can be formed between the covering layer and carrier material during a subsequent heating step. 
<IMAGE>
Patent KR-920010603-B1 (KR)
Inventor: DERAI KIYOHISA
IPC: H01S3/038
Filed: 1989-06-15
Granted: 1992-12-10
Abstract: 내용 없음.
Patent KR-910003650-B1 (KR)
Inventor: SANDO YOSHITERU
IPC: D06B3/36
Filed: 1989-06-20
Granted: 1991-06-08
Abstract: 내용 없음.
Patent KR-910008112-B1 (KR)
Title: Process for the production of o2,2'-anhydor-1-(beta-d-arabino furanosyl)-thymine
Inventor: MURTIASHAW CHARLES W
IPC: A61K31/7072
Filed: 1989-07-11
Granted: 1991-10-10
Abstract: In the disclosed process, an O<2>,2 min anhydro-1-( beta -D-arabinofuranosyl)thymine is formed by condensing a 2-amino- beta -arabinofurano[1 min ,2 min :4,5,]-2-oxazoline with a compound of the formula <CHEM> wherein R1 is C1-C4 alkyl; X is halogen or OR2, wherein R2 is H, C1-C4 alkyl or phenyl; in the presence of a suitable solvent at about 0 DEG C to about 150 DEG C. Catalytic agents such as dimethylaminopyridine and triethylamine may also be added to accelerate the reaction. Protected intermediates of the anhydronucleosides and aminooxazolines are also disclosed.
Patent KR-930001103-B1 (KR)
Inventor: NAGASE FUMIO
IPC: G11B5/012
Filed: 1989-08-02
Granted: 1993-02-15
Abstract: 내용 없음.
Patent KR-920000404-B1 (KR)
Title: Read control circuit of multi - output semiconductor memory
Inventor: IM BYUNG-YUN
IPC: G11C7/00
Filed: 1989-09-23
Granted: 1992-01-13
Abstract: The read-out control circuit for suppressing the output noise of an output driving unit of a memory device comprises  first  and second clock generators (40)(50) for receiving an  ATD  signal  to transmit clock signals to first and second differential amplifiers (10)(20) under  the  control  of  clock  signals.  The  amplifiers (10)(20) senses a voltage difference on a pair  of  bit  lines.  A data output buffer and driving unit  (30)  transmits  the  amplied output data to an external circuit of a  memory  IC.  The  circuit partitions the differential amplifier group into two subgroups and processes the output data sequentially by using the clock signals.
Patent KR-0150198-B1 (KR)
Inventor: NAKAZUMI TETSUYA
IPC: G11B5/712
Filed: 1989-10-20
Granted: 1998-10-15
Abstract: 내용없음
Patent KR-930005960-B1 (KR)
Inventor: TAKEDA MASAHIRO
IPC: F16B21/18
Filed: 1989-10-30
Granted: 1993-06-30
Abstract: 내용 없음.
Patent KR-0132711-B1 (KR)
Inventor: ICHIMURA KUNIHIRO
IPC: C08F16/38
Filed: 1989-11-14
Granted: 1998-04-14
Abstract: 수성현상액으로 현상기능한, 하기 일반식으로 표시되는 구성단위를 갖는 것을 특징으로 한 감광성 폴리비닐 알코올 유도체가 제공된다. 
     
       
     
     상기식에서 R 1 은 알킬렌기를 표시하고, R 1 는 수소원자 또는 저급알콕시기를 표시하며, 
     
       
     
     는 4급화된 방향족성 질소함유 복소환기를 표시하고, X - 는 SO 3   - 또는 CO 2   - 를 표시하며, m은 0 또는 1, n은 1-6의 정수를 표시한다.
Patent KR-920003132-B1 (KR)
Title: Melt spinning method of polyester fibers
Inventor: IN CHI-WOOK
IPC: D01D5/08
Filed: 1989-12-22
Granted: 1992-04-20
Abstract: In  high  speed  spinning  of  polyester  fiber  whose  main repeating unit is ethylene terephthalate at  3000  m/min,  0.8-4.0 mol % of diol composition, which  is  selected  among  1,3-propane diol,  1,4-butane  diol,  1,5-pentane   diol,   1,6-hexane   diol, 1,4-cyclohexane  diol,  1,4-cyclohexane   dimethanol,   diethylene glycol, neopentyl glycol, triethylene glycol, polyethylene  glycol and ethylene glycol, is copolymerized  and  melt-spun  to  make  a polyester fiber.
Patent KR-960016383-B1 (KR)
Title: Improved signalling method for establishing trunked communication
Inventor: SASUTA MICHAEL DAVID
IPC: H04W84/08
Filed: 1988-02-08
Granted: 1996-12-09
Abstract: A trunked communication signalling method is provided by a unifying signalling protocol in which subscribers request communication channels using only their individual IDs encoded into a single ISWs. The central decodes the call request, extracts the requesting subscriber's individual ID, which is cross referenced to determine the subscriber's talk-group affiliation(s). If the requesting subscriber's affiliation(s) are not known, the central commands the subscriber to transmit its affiliation using dual ISW signalling. In another aspect of the present invention, each subscriber automatically informs the central of a change in talk-group affiliation, thereby providing continual affiliation updates. In this way, many thousand subscribers are afforded access to a single trunked system, and control channel traffic congestion is minimized.
Patent KR-960002649-B1 (KR)
Inventor: OKA MITSUKO
IPC: A41B13/10
Filed: 1989-01-05
Granted: 1996-02-24
Abstract: 내용 없음.
Patent KR-950009714-B1 (KR)
Inventor: GERHARD KELLER
IPC: B29C48/30
Filed: 1989-02-09
Granted: 1995-08-26
Abstract: 내용 없음.
Patent KR-930010225-B1 (KR)
Inventor: URATA SUSUMU
IPC: A47J37/00
Filed: 1988-05-27
Granted: 1993-10-15
Abstract: 내용 없음.
Patent KR-930001021-B1 (KR)
Inventor: KOWALSHI JACEK
IPC: G06K19/10
Filed: 1990-01-25
Granted: 1993-02-12
Abstract: 내용 없음.
Patent KR-930009186-B1 (KR)
Inventor: LANG STUART E
IPC: H04N9/68
Filed: 1990-02-14
Granted: 1993-09-23
Abstract: 내용 없음.
Patent KR-920008019-B1 (KR)
Title: Electromotion actuator
Inventor: YUN CHUNG-HO
IPC: F16H3/00
Filed: 1990-05-03
Granted: 1992-09-21
Abstract: The electric actuator for protecting a system from  overloads comprises a planet gear (7) rotated by driving  gear  (3),  a  sun gear and a pinion gear (9). In the center of power gear (5) shaft, a sun gear (8) and a pinion gear (9) with the teeth being one less in number than that of the sun gear (8) are engaged with a  planet gear. A ball clutch controlling rotation forces is  fixed  on  the sun gear shaft, the electric power of motor (1) being cut off from overloads of the output shaft safely to protect a system.
Patent KR-100194089-B1 (KR)
Title: 단일시트 피킹 및 이송 장치
IPC: H04N1/00
Filed: 1990-06-29
Granted: 1999-06-15
Abstract: 내용 없음.
Patent KR-920009790-B1 (KR)
Title: Process for the preparation of 1,1,1-chlorodifluoroethane
Inventor: BERGOUGNAN MICHEL
IPC: C07C17/20
Filed: 1990-09-29
Granted: 1992-10-22
Abstract: Continuous manufacture of 1,1,1-chlorodifluoroethane from 1,1,1-trichloroethane and hydrofluoric acid by liquid phase reaction in the presence of at least one fluorination catalyst. According to the invention the operation is carried out at an absolute pressure of between 6 and 30 bars and at a temperature of between 50 and 120 DEG C, the catalyst content of the reaction mixture, expressed as weight percentage of metal, being between 0.05 and 10% and its content of organohalogen by-products outside 140 series being regulated at a value of less than 40% by weight. This process makes it possible simultaneously to obtain a high degree of conversion of hydrofluoric acid, to minimise the coproduction of 1,1,1-trifluoroethane and of organohalogen by-products, and to make it easier to recover the hydrochloric acid formed.
Patent KR-930010157-B1 (KR)
Inventor: MATSUMOTO TADASHI
IPC: B60N2/02
Filed: 1990-11-10
Granted: 1993-10-15
Abstract: 내용 없음.
Patent KR-930011702-B1 (KR)
Inventor: YOKOTA YOSHIO
IPC: H01L23/48
Filed: 1990-11-16
Granted: 1993-12-18
Abstract: 내용 없음.