baber/WOPTO huggingface dataset:
Patent KR-860001134-B1 (KR)
Title: Apparatus for forming spirally wound pipe
Inventor: LUPKE MANFRED A A
IPC: B29C53/56
Filed: 1984-04-03
Granted: 1986-08-16
Abstract: A series of independent mould blocks are arranged to travel serially along a helical track so as to define a rotating and axially advancing mandrel surface. The track has a hollow core through which the mould blocks are returned, a run out device being provided to transfer the blocks serially from the helical track to the return passage through the hollow core at a downstream position, and a run in device for transferring the blocks from the return passage to the helical track at an upstream position with a drive system driving the blocks serially through the block return system.
Patent KR-860002137-B1 (KR)
Title: Bag sealing method
Inventor: KIM HYONG-SHIN
IPC: B65B43/39
Filed: 1984-05-16
Granted: 1986-12-11
Abstract: This is a improved method of bag sealing by using an assistant plate. The manufacturing process is as follows; fold one side of the main body (1), made of synthetic resins film, and attach the tube-shaped opening and shutting tool(4) on the folded side by heat, and attach the assistant plate on the tube-shaped opening and shutting plate, and fold the other sides (2), (3), and fix the side (6) by heat, and finally take out the assistant plate.
Patent KR-900000206-B1 (KR)
Title: Semiconductor device
Inventor: DAKAHAMA SINOBU
IPC: H01L23/538
Filed: 1985-04-06
Granted: 1990-01-23
Abstract: The interconnection structure of the power semiconductor for a high density and a small size has an insulating substrate on which is applied a conducting layer in the form of a conductor pattern.  The conducting layer comprises an insulating base layer soldered up to a copper film or an aluminium film ; alternately, a bottom copper film with an aluminium film on top can be used.  The insulating substrate has a thickness of 80 microns and is made of an epoxy type resin.  On the substrate, a semiconductor device provides or interrupts the flow of electric current, and a current terminal is connected to the substrate and to the semicondutor device.
Patent KR-920002410-B1 (KR)
Title: Stapler
Inventor: LEE DEOG-EON
IPC: B65C5/06
Filed: 1985-06-19
Granted: 1992-03-23
Abstract: In the apparatus comprising  (A)  section  including  a  sock feeder, (B) section for feeding toe pin band and (C)  section  for fastening toe pin to the sock: the A section includes  a  clamping unit having a clamp bar fixed to the main body and the  other  bar being movably actuated; the (B) section  includes  two  countering dies one of which having two contact points on its end, a toe  pin feeding lever whose one member being fixed while the other  member being movably actuated, and a press bar of a  reciprocating  block to press fit into a contact member; the (C) section  includes  two clamp levers and a cutter for bending the supplied  toe  pin  with the actuation of the clamp members and the block into the sock  to be cut from the band by the cutter.
Patent KR-930006873-B1 (KR)
Inventor: WALLAS ALAN C
IPC: H02K9/04
Filed: 1985-09-11
Granted: 1993-07-24
Abstract: 내용 없음.
Patent KR-930010416-B1 (KR)
Inventor: CRUE ALBERT W
IPC: G06F11/16
Filed: 1985-10-31
Granted: 1993-10-23
Abstract: 내용 없음.
Patent KR-900007168-B1 (KR)
Title: Time axis correction circuit using memory map of digital audio
Inventor: KIM YONG-SUK
IPC: G11B20/18
Filed: 1985-11-30
Granted: 1990-09-29
Abstract: A digital audio memory map (IV) compensates the time-axis deviation caused at recording the data with multiple head. A serial/parallel converting register (I), 10 bit register (II), and tri-state buffer (III) are connected in series per one track. Each series track is connected in parallel and outputs of the tri-state buffer are connected to a EPROM (V) and a shift register (VI) through the memory (IV) at which the read and write sequence of data are different to compensate the deviation of the time-axis.
Patent KR-900004793-B1 (KR)
Title: Process for thepreparation of nylon -6- block copolymer
Inventor: GABBERT JAMES D
IPC: C08G69/00
Filed: 1985-12-16
Granted: 1990-07-05
Abstract: A compsn. suitable for admixing with a C3-12 lactam magnesium halide (LMH) catalyst to provide an admixt. which polymerises to form a nylon-6 blcok copolymer, comprises (A) epsilon-caprolactam, (B) an initiator (or its precursor) being capped with at least one activatied gp. capable of initiating epsilon-caprolactam polymerisation in the presence of the catalyst and providing elastomeric segments to the nylon-6 block copolymer when it is incorporated in it, and (C) 2-oxo-1-pyrrolidinyl gps. (OPG) present in the compsn. as 2-pyrrolidinone or as the activated gps. of the initiator. The concn. of OPG is about 0.05-2 equivs. per equiv. of (B).
Patent KR-930007420-B1 (KR)
Title: Process for preparing beta-lactam antibiotics
Inventor: SCHMIT GUNTER
IPC: A23K20/195
Filed: 1986-03-08
Granted: 1993-08-10
Abstract: Antibacterially active and animal growth-promoting novel  beta -lactam compounds of the formula   <IMAGE>   in which R1 represents the radical   <IMAGE>  Y representing N or CR9, or Y-R7 representing >C=O or >C=N-R7, Z representing O, S, or NR10, and R2 represents hydrogen or a protective group.
Patent KR-940010858-B1 (KR)
Inventor: LUE HSUE-CHENG
IPC: B65D85/00
Filed: 1986-05-14
Granted: 1994-11-18
Abstract: 내용 없음.
Patent KR-940010004-B1 (KR)
Title: Sole structure of sports shoe
Inventor: TIITOLA ANTTI-JUSSI
IPC: A43B13/18
Filed: 1986-07-31
Granted: 1994-10-20
Abstract: The invention concerns a sole structure of a sports shoe comprising a wearing sole (1) and an intermediate layer (2) and also a cushioning and supporting structure (3, 4, 5) between them. The mentioned cushioning and supporting structure comprises a flexible toe part (5) extending virtually form the tip of the shoe to the ball area of the foot, a resilient heel part (4) tapering wedgelike from the rear edge of the shoe towards the tip of the shoe and extending at least over the heel area as well as a body piece (3) fitted above the heel part (4) and extending virtually from the rear edge of the shoe to the ball area of the foot or to the zone (A) becoming against the heel and the arch.
Patent KR-940011159-B1 (KR)
Inventor: SCHMACHER GERALD F
IPC: C09D175/04
Filed: 1986-08-01
Granted: 1994-11-24
Abstract: 내용 없음.
Patent KR-900002086-B1 (KR)
Title: Heat treatment method of compound semiconductor wafer
Inventor: SIKADA SINZI
IPC: H01L21/316
Filed: 1986-09-20
Granted: 1990-03-31
Abstract: The compound semiconductor substrate having ion implanted layers is annealed to activate them by; forming a gas plasma of specific components by electron cyclotron resonance and making the same reaction with reactive gas to accumulate reaction products on the substrate surface to form a protective film; and heat treating to activate the ion-implanted layers.  Plasma-forming gas is NH3.
Patent KR-900000965-B1 (KR)
Title: Aroylthiazolane compound and their preparation
Inventor: MARTIN GRISAR J
IPC: C07D521/00
Filed: 1986-10-15
Granted: 1990-02-23
Abstract: An aroylthiazolone of formula (I) is prepd. by reacting a thiazolone of formula (II) with or acid halide of formula X-C(=0) -Ra2 in the presence of a Lewis acid catalyst for 1-10 hrs.  In the formulas: R1 is hydrogen or C1-4 alkyl; R2 is unsubstd. benzyl, C1-4 alkyl, C1-4 alkoxy, carboxy, carb-C1-4-alkoxy, imidazolyl, C1-4 alkylthio, C1-4 alkylsultonyl, C1-4 alkylsulfinyl, trifluoromethyl, cyano, amino, mono-and di- C1-4 alkkylamino, pyrrolidino, piperidino, morpholine, piperazine, N-C1-4-alkyl-piperazino or substd. phenyl or benzyl; X is bromo or chloro.  (I) is useful as a cardiac.
Patent KR-910001447-B1 (KR)
Inventor: MASUMOTO TOSHIO
IPC: G06F12/02
Filed: 1986-11-13
Granted: 1991-03-07
Abstract: 내용 없음.
Patent KR-900001236-B1 (KR)
Inventor: NARIMATSU OSAMU
IPC: B24B37/30
Filed: 1985-05-23
Granted: 1990-03-05
Abstract: 내용 없음.
Patent KR-890000490-B1 (KR)
Title: Scrubber's knitting apparatus
Inventor: CHANG MAN-SU
IPC: D04B9/12
Filed: 1987-03-26
Granted: 1989-03-18
Abstract: The knitting device selectively cuts pile loops of knitting to provide better rubbing effect with cut edges.  In a known tubular knitting machine, a sinker (1) with a cutting blade (12) is interposed in the row of sinkers (1') having no blade after every some sinkers (1') to selectively cut loops, and a frame (4) supports a fixed connection node (5) and a movable connection node (5') having a sensor (6) elastically supported by a spring (7), both nodes connecting to a breaker (8) for interrupting the knitting operation on sensing a malfunction to prevent defective operation.
Patent KR-950010634-B1 (KR)
Inventor: SIEGENTHALER KARL J
IPC: B29D30/06
Filed: 1987-05-20
Granted: 1995-09-21
Abstract: 내용 없음.
Patent KR-960001781-B1 (KR)
Inventor: SAHARA HIROSHI
IPC: G11C11/409
Filed: 1987-06-30
Granted: 1996-02-05
Abstract: 내용 없음.
Patent KR-900005922-B1 (KR)
Title: Method for using serial/parallel data in printer
Inventor: KIM YOUNG-SAM
IPC: G06F13/00
Filed: 1987-11-13
Granted: 1990-08-16
Abstract: A system control switch (10) having informations about the kinds of the serial/parallel ports and about the transmission speed of the ports is connected to a system control registor (15) to convert the serial input data to parallel output data or parallel input data to serial output data according to the command of the switch.  When the input data exists, the process jumps to the interrupt routine to read and store the data and returns to provide the data to the serial/ parallel output port asynchronously.
Patent KR-900003114-B1 (KR)
Title: Method for manufacturing a camouflaging fabric for preventing by infra-red means
Inventor: SIM YU-BONG
IPC: D06P1/20
Filed: 1987-12-12
Granted: 1990-05-08
Abstract: The camouflaging fabric is prepd. by dyeing and printing the union cloth made of nylon and cotton fiber by using four colours of light- green, dark-green, brown and black, where first the light-green is dyed as back ground colour and then the other three colours are printed thereon. The dye of green color is benzandrone dervs. type andraquinone based dye contg. diazole. The dyes of brown and black are vatdyes. The camouflaging fabric is useful in woodland.
Patent KR-960000153-B1 (KR)
Inventor: JEFFREY S CHILDRESS
IPC: H04L1/18
Filed: 1988-01-30
Granted: 1996-01-03
Abstract: 내용 없음.
Patent KR-940001008-B1 (KR)
Inventor: ONARI MIKIHIKO
IPC: G05B13/00
Filed: 1988-04-06
Granted: 1994-02-08
Abstract: 내용 없음.
Patent KR-900005570-B1 (KR)
Title: Solvent for drycleaning
Inventor: OUNO KATSUHIRO
IPC: D06L1/02
Filed: 1988-06-08
Granted: 1990-07-31
Abstract: A dry-cleanign solvent contains (a) low molecular wt. of polyolefin and (b) 0-40 wt.% of petroleum, chlorine and/or fluorine solvent. The polyolefin is pref. polybutene or polypropylene, and its boiling point is pref. 100-280 deg.C. The solvent has an excellent stability and cleaning effect.
Patent KR-910010130-B1 (KR)
Title: Process for obtaining a ceric oxide
Inventor: LELOARER JEAN-LUC
IPC: C01F17/235
Filed: 1988-06-29
Granted: 1991-12-17
Abstract: A process for obtaining a ceric oxide. More precisely, a process for increasing and stabilising the specific surface of a ceric oxide at high temperature. 
<??>The process of the invention, which consists in preparing a ceric oxide by calcining a ceric hydroxide, is characterised in that the ceric hydroxide is subjected to a solvothermal treatment before the calcination operation.
Patent KR-910004163-B1 (KR)
Title: Registor
Inventor: CHO YONG-HWAN
IPC: G07G1/12
Filed: 1988-07-25
Granted: 1991-06-22
Abstract: The cash register includes  a  function  for  separating  the accounts dealt on the credit card  which  one  would  be  returned within the transacted month and another in next month so that  the return account in this month is estimated. The cash register  also publishes the settlement report of  account  to  be  utilised  for business plan. The management program  comprises  a  program  mode programming  the  summing  region  and  the  return  data  of  the respective cash  cards,  a  record  mode  updating  the  separated accounts  selectively,  and  a  report  mode  printing   out   the settlement reports showing the return accounts for this  and  next months.
Patent KR-920006712-B1 (KR)
Title: Compact golf facilities
Inventor: KOSCHWITZ HEINZ
IPC: A63B69/36
Filed: 1988-09-07
Granted: 1992-08-17
Abstract: In the centre of an area accommodating the golf course (20) there is a central teeing-off region (22) with teeing-off segments (1-18), arranged adjacently along its periphery, and the greens (1'-18') are grouped at different distances around the central teeing-off region (22). The course can be used simultaneously by several players without mutual interference or risk of injury. This applies particularly if one green (1'-18') is assigned to each teeing-off segment (1-18) and lateral bounding of the teeing-off segments (1-18) ensures that balls can always only be struck into a playing area covering the assigned green (1'-18'). <IMAGE>
Patent KR-910006860-B1 (KR)
Inventor: YASKI SEIZIRO
IPC: H04N9/78
Filed: 1988-09-16
Granted: 1991-09-07
Abstract: 내용 없음.
Patent KR-910006082-B1 (KR)
Inventor: YAMAMURO MIKIO
IPC: G11B7/13
Filed: 1988-09-28
Granted: 1991-08-12
Abstract: 내용 없음.
Patent KR-940006966-B1 (KR)
Inventor: KAWANA KEIICHI
IPC: G01R29/027
Filed: 1988-09-30
Granted: 1994-07-30
Abstract: 내용 없음.
Patent KR-920003714-B1 (KR)
Inventor: HIRAO YOSHIAKI
IPC: H04N5/232
Filed: 1988-10-08
Granted: 1992-05-09
Abstract: 내용 없음.
Patent KR-970008263-B1 (KR)
Title: Liquid crystal compositions
Inventor: SAWADA SHINICHI
IPC: C09K19/42
Filed: 1988-11-09
Granted: 1997-05-22
Abstract: A liquid crystal composition comprise a first component comprising at least one compound of the formula: <CHEM> (in which R<1> and R<2> are each a C1-C8 alkyl group); and a second component comprising at least one compound of the formula: <CHEM> (in which R<3> is an alkyl or akenyl group containing up to 8 carbon atoms; R<4> is a hydrogen or fluorine atom; R<5> is a fluorine atom or a cyano group; and <CHEM>  is a group <CHEM>   The composition may also contain other compounds of defined structure.
Patent KR-910007977-B1 (KR)
Inventor: CENTER PETER D
IPC: A61P43/00
Filed: 1988-11-22
Granted: 1991-10-05
Abstract: 내용 없음.
Patent KR-920005341-B1 (KR)
Inventor: WATANABE TOSHO
IPC: G07F9/10
Filed: 1988-11-29
Granted: 1992-07-02
Abstract: 내용 없음.
Patent KR-910002385-B1 (KR)
Title: Production of magnesium hydroxide from sea water
Inventor: LEE SANG-WAN
IPC: C01F5/14
Filed: 1988-12-30
Granted: 1991-04-20
Abstract: A magnesitum hydroxide [Mg(OH)2  is produced from  sea  water by (1) reacting sea water  with  slaked  lime  to  give  magnesium hydroxide slurry, (2) washing  the  slurry  with  sea  water,  (3) drying the washed slurry, (4) crushing and mixing the dried slurry with industrial water or SiO2-free, refined water  in  a  crusher, and (5)  washing  the  precipitate  with  industrial   water   or SiO2- free, refined water one  or  two  times  after  settling  the crushed  slurry.  The  process  has  an  advantage   of   reducing impurities in magnesium hydroxide with much less amount  of  water compared with the conventional process.
Patent KR-910002661-B1 (KR)
Inventor: MUROI DACAHIDO
IPC: F26B3/04
Filed: 1988-12-31
Granted: 1991-05-03
Abstract: 내용 없음.
Patent KR-940001224-B1 (KR)
Inventor: JOHANSEN LAURIE A
IPC: G02C7/12
Filed: 1988-06-16
Granted: 1994-02-17
Abstract: 내용 없음.
Patent KR-920008225-B1 (KR)
Title: Memory control circuit and method for storing display character
Inventor: IM CHUNG-BIN
IPC: G11B20/10
Filed: 1989-07-20
Granted: 1992-09-25
Abstract: The circuit gives priority to  read  request  when  read  and write request occurs simultaneously on RAM  of  on-screen  display system. The circuit comprises a signalselector (100) for selecting signal between  input   display   signal   and   display   signal synchronized to input strobe signal, a signal generator (200)  for generating acknowledge signal for input gate  control  signal  and for stopping the acknowledge signal  when  the  strobe  signal  is stopped, and a gating unit (300)  for  transmitting  gate  control signal only when the most  significant  bits  of  read  and  write address are identical.
Patent KR-0127638-B1 (KR)
Inventor: DANIEL GARCERA
IPC: B01D53/86
Filed: 1989-07-28
Granted: 1997-12-30
Abstract: 없음
Patent KR-910004365-B1 (KR)
Title: Preparation method for vaccine
Inventor: YUN JI-BYUNG
IPC: C12N7/00
Filed: 1989-07-31
Granted: 1991-06-26
Abstract: A method for purification of envelop  protein  (I)  comprises harvesting amplified ozeski virus on swine kidney PK-15 culture on dubelcco's modified  eagle's  mediums;  mixing  the  harvest  with triton X-100 at 4'C for 90 min., and seperating (I) from lysate at 10,000 rpm for 60 min. by centrifugation. (I)  is  stable  at  -20 deg.C for long time. The formulation of ozeski vaccine  for  swine is composed of (I) 0.5 mg/ml in saline;  mineral  oil;  surfactant (8:9:1). The surfactant is  the  mixture  of  span  85:  tween  85 (54:46).
Patent KR-940008809-B1 (KR)
Title: Motion detecting apparatus of hdtv
Inventor: JO HYON-DOK
Filed: 1989-10-13
Granted: 1994-09-26
Abstract: The motion detecting apparatus for detecting a picture motion in a high quality television set for receiving a television transmitting signal of a band compression including a device for playing back motional image signal, a device for playing back still image signal, a mixing device for mixing motional image signal and still image signal according to a given mixing rate and playing back the mixed image signal, and a motion detecting device for generating motion detecting signal generated from a difference between the still image signal and the mixed image signal and applying the motion detecting signal to the mixing device.
Patent KR-0137938-B1 (KR)
Inventor: IPRI ALFRED CHARLES
IPC: G02F1/1368
Filed: 1989-10-20
Granted: 1998-06-01
Abstract: 내용없음
Patent KR-920007947-B1 (KR)
Title: Data base system realization method
Inventor: KIM KWANG-HUN
IPC: G06F13/00
Filed: 1989-12-30
Granted: 1992-09-19
Abstract: The static  roll-back  relational  data  base  system  having functions for supervising history of data base  state  change  and Hangul data processing is realized using the  method.  The  method includes  steps:  (A)  displaying  initial  screen   and   opening corresponding data base directory; (B) receiving a data base  edit instructions; (C) importing  present  state  relation  and  change history relation, displaying  relation  manupulating  screen,  and displaying a first tuple; (D) receiving screen  mode  instructions transmitted from a user; (E) executing Hangul data  inserting  and processing module, historical query processing module, and a tuple change history screen manipulating module, and  (E)  changing  the mode from execution to instruction when the input  instruction  of the step (D) is a transition instruction.
Patent KR-970005231-B1 (KR)
Title: Improvement in or relating to avian control
Inventor: GREIG-SMITH PETER WILLIAM
IPC: A01N35/02
Filed: 1988-12-14
Granted: 1997-04-14
Abstract: Compounds of formula (I) <CHEM> wherein X<1> and X<5> are each separately selected from hydrogen and C1-4 alkyl, halogeno and halogeno-substituted C1-4 alkyl groups; X<2>, X<3> and X<4> are each separately selected from hydrogen and C1-4 alkyl, hydroxy, C1-4 alkoxy and phenoxy groups; R<1> and R<2> are each separately selected from hydrogen and C1-4 alkyl groups; R<3> and R<4> are each hydrogen or together constitute the second bond of a carbon-carbon double bond joining -CR<1>R<3>- and -CR<2>R<4>-; and Y is hydroxymethyl, formyl, cyano, carbamoyl,carbamoyl N-substituted by one or two of the same or different C1-4 alkyl groups, carboxy or a carboxylic ester or carboxylate salt, are of value as avian repellents.
Patent KR-0138994-B1 (KR)
Title: Bonded abrasive products containing sintered sol gel alumina abrasive filaments
Inventor: KALINOWSKI PAUL W
IPC: C04B35/10
Filed: 1990-04-27
Granted: 1998-04-28
Abstract: Resinoid and vitrified bonded abrasive products containing filament shaped sintered alumina based abrasive made up predominantly of fine alpha alumina crystals.
Patent KR-930002156-B1 (KR)
Title: Method of making magnetic recording medium
Inventor: JO HYON-SU
IPC: G11B5/702
Filed: 1990-12-21
Granted: 1993-03-27
Abstract: The magnetic  recording  medium  is  prepared  by  coating  a magnetic paint  containing  ferromagnetic  powder,  carbon  black, grinding agent and binder as a main component onto a  non-magnetic substrate. The binder is selected from a polyvinyl  chloride-based binder   or   a   polyvinyl   chloride   copolymer   (e.g.   vinyl chloride-vinyl acetate-vinyl alcohol copolymer  etc.)-polyurethane resin  mixture.  A  calcium  stearate  is  added  as   a   thermal stabilizer. The medium has a good running property and durability, and is used for magnetic tapes and magnetic disks.
Patent KR-950002928-B1 (KR)
Title: Manufacturing method and device of laminate aluminium sheath cable
Inventor: HA JUN-YONG
IPC: H01B13/00
Filed: 1990-12-31
Granted: 1995-03-28
Abstract: This method enhances the complexed works in the old way of fabricating laminate aluminum sheath cable by simultaneously doing both laminate aluminum sheathing job and continuous, safe, and stable gluing of folded parts. The method comprises the steps of: sheathing cylinderically a cable core (1) and laminate aluminum (2) in a former (3); fabricating dices (4) (4') in a form; melting the external coating of laminate aluminum (2) by heating the folded parts of the laminate aluminum sheathed by the cable core; and makeing the extenal coating of laminate aluminum epitaxially grow by itself by a pressure roller (9).
Patent KR-930005913-B1 (KR)
Inventor: YUN IN-BAE
IPC: A61F6/22
Filed: 1988-12-05
Granted: 1993-06-29
Abstract: 내용 없음.
Patent KR-930011838-B1 (KR)
Inventor: SUKIMORI YOSHIO
IPC: H04N7/00
Filed: 1990-02-05
Granted: 1993-12-21
Abstract: 내용 없음.
Patent KR-940000998-B1 (KR)
Title: Cosmetic composition for whitening skin comprising a hydrolysate of lactiv bacteria culture
Inventor: CHON KWANG-HO
Filed: 1991-03-06
Granted: 1994-02-08
Abstract: The fermented mash is prepd. by inoculating lactic acid bacteria, such as streptococcus equi or S.zooe pidermicus and culturing and fermenting at 35-37 deg.C. The fermented mash obtd. is hydrolyzed with hyaluronidase and centrifuged at 8,000 rpm, for 20 minutes. After heating and filtering the supernatant, the hydrolysate fraction of below mol. wt 6,000 is collected. The high concentrated hydrolysate fraction is added to cosmetics, which have skin whitening effect.
Patent KR-0184523-B1 (KR)
Title: Internal combustion engine with delayed charging
Inventor: DAHLGREN JAN
IPC: F02B29/08
Filed: 1991-05-28
Granted: 1999-03-20
Abstract: The invention relates to an internal combustion engine with delayed charging using valves in the intake pipes (8). The valves are held closed during the initial phase of the intake stroke of each cylinder, and are opened rapidly at a certain point of time. The pulse effect produces a supercharging. The valves are flaps (13, 14) controlled by electromagnets (17, 18) and function as non-return valves. <IMAGE>
Patent KR-940008608-B1 (KR)
Inventor: OHNISHI SHINGO
IPC: G06F11/00
Filed: 1991-07-13
Granted: 1994-09-24
Abstract: 내용 없음.
Patent KR-950002838-B1 (KR)
Title: Process for the preparation of azines
Inventor: SCHIRMANN JEAN-PIERRE
IPC: C01B21/16
Filed: 1991-11-23
Granted: 1995-03-27
Abstract: Process for the synthesis of azines from aqueous hydrogen peroxide, ammonia and a reactant bearing a carbonyl group, characterised in that this reactant is brought into contact with an amide of a weak acid and the ammonium salt corresponding to this acid and in that the azine obtained is then isolated. 
<??>The invention also relates to processes in which the reaction takes place in the presence of any mixture containing an amide and the azine is then recovered and the remainder of the reaction mixture is treated to regenerate the amide.