baber/WOPTO huggingface dataset:
Patent KR-910002675-B1 (KR)
Title: Soil repellent fluorinated esters of multi-ring anhydride systems
Inventor: KELLY MICHAEL
IPC: C07C315/04
Filed: 1983-03-05
Granted: 1991-05-03
Abstract: Fluorinated esters based on multi-ring anhydride systems are disclosed which have excellent anti-soiling properties, durability and resistance to laundering. The compounds are represented by the formula   <IMAGE>   wherein n is 2 or 3, Q is a linking group such as -CO-, -O-, or (CaH2a+2-n-(O2C)n, Rf is a fluorinated radical, and R is derived from an epoxide such as ethylene oxide or epichlorohydrin. Also disclosed are polyester and nylon fibers having these compounds incorporated therein, and a process for producing such soil-repellent fibers.
Patent KR-860001334-B1 (KR)
Title: Apparatus for producing a tube from a continuous formed extruded supporting material and a profiled material
Inventor: HAWERKAMP MANFRED
IPC: B29C47/00
Filed: 1983-04-11
Granted: 1986-09-15
Abstract: This device for the production of a tube (1) from a helically wound hollow profile material (2) has an extruder (5) preceded by a feeder (9) which draws a hose preform from a bobbin (3) and urges it into the extruder. The feeder (9) preferably has two rolls (11) forming a channel (10) for the supporting hose (4), with one roll power-driven and one roll adjustable relative to the other. One roll is provided with a high friction grooved face formed by a ribbed face coated with rubber or plastics.
Patent KR-910001898-B1 (KR)
Inventor: HAUGER HARRY L
IPC: B05B7/30
Filed: 1983-12-06
Granted: 1991-03-30
Abstract: 내용없음.
Patent KR-870000128-B1 (KR)
Title: Control apparatus for industrial robot
Inventor: HO GYONG-MU
IPC: B25J13/00
Filed: 1984-08-20
Granted: 1987-02-12
Abstract: This invention is a controller of an industrial robot which does welding and fabrication. Several microprocessors which share the progress of work enable the robot to do the real time control so that performance will be promptly executed. To modify the progress partially, we modify that CPU or extend it. The ratch and the decorder which combine with D/A converter can execute multiplexing so that only one D/A converter operates six driving mortors. The block diagram is the figure 1. There are a CRT, I/O ports, driving motors, CPU's, a ratch, a D/A converter, a 3 bit decorder, a sample and holder and a transmission RAM.
Patent KR-910008676-B1 (KR)
Inventor: YAMAGUJI SADORU
IPC: G11C11/02
Filed: 1984-09-17
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-840002492-B1 (KR)
Title: Improvements in signal processing systems and switching system therefor
Inventor: DOLBY RAY MILTON
IPC: G11B20/04
Filed: 1984-09-19
Granted: 1984-12-31
Abstract: Signals in the high and/or low frquency extremes of a signal transmission system, in which those extremes are subject to errors in the transmission channel, are attenuated so as not to control the action of a compressor feeding the transmission channel and so as to be attenuated in the compressor output to the channel. Consequently, a complementary expander fed by the channel is not subject to control by signals at frequencies subject to transmission channel errors.
Patent KR-890002128-B1 (KR)
Title: Shadowmask of making method
Inventor: ODAKE YASHISA
IPC: C23F1/04
Filed: 1984-09-26
Granted: 1989-06-20
Abstract: Both surfaces of a metal sheet except those regions in which small and large openings are to be formed are coated with resist films. The upper surface of the metal sheet is further coated with an organic synthetic film.  Etching soln. is sprayed on the lower surface of the metal sheet kept in a substantially horizontal position to etch the region corresponding to the small opening so forming the small recesses.  The metal sheet is then turned over and the regions corresponding to the large openings are etched until the large recesses are reached to the resistant layer.  Resist film and the remaining resistant layer are then removed.
Patent KR-900008936-B1 (KR)
Inventor: SCHUTZ JOSEPH D
IPC: G11C11/4094
Filed: 1985-02-14
Granted: 1990-12-13
Abstract: 내용 없음.
Patent KR-880001400-B1 (KR)
Title: Integrated circuit for two phase-logic
Inventor: KONG JIN-HEUNG
IPC: G06F7/50
Filed: 1985-06-21
Granted: 1988-07-30
Abstract: The serial addition/subtraction integrated circuit performs the data processing in serial according to the 2-phase logic and operates the addition and subtraction function simultaneously. This integrated circuit is composed of a data input section which generates the initial carry of input data signal, an addition/ subtraction control section (2) which supplies one shot pulse in order ot select addition or subtraction, an arithmetic section (4) for generation of enable signal, an arithmetic control section (3) and an output section (5).
Patent KR-920009138-B1 (KR)
Inventor: KALINA ALEXANDER I
IPC: F01K25/06
Filed: 1985-08-07
Granted: 1992-10-13
Abstract: 내용 없음.
Patent KR-900006374-B1 (KR)
Title: High pressure clamping device
Inventor: KRAUSE LUDWIG
IPC: B25B1/10
Filed: 1985-10-08
Granted: 1990-08-30
Abstract: The end of the vice body comprises a fixed jaw. The body has a guideway for a slide carriage with a moving jaw. A counterbearing at the other end of the body for the moving jaw drive comprises a power booster and a threaded spindle driven by a common crank, the spindle working in a nut in the slide carriage. In the retracted position of the slide carriage, the moving jaw is above the power booster, which is contained in the body between the counter and the threaded spindle. The nut on an extension of the slide carriage, exerts a downward and forward pull on the moving jaw in the clamping position.
Patent KR-910008469-B1 (KR)
Inventor: YAMAKUCHI DAKESHI
IPC: A21D6/00
Filed: 1985-11-21
Granted: 1991-10-18
Abstract: 내용 없음.
Patent KR-910006638-B1 (KR)
Inventor: OGAWA KAZUO
IPC: A61K31/425
Filed: 1985-12-31
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-910005008-B1 (KR)
Title: 주형 부착물의 제거방법
IPC: C11D7/50
Filed: 1986-01-07
Granted: 1991-07-20
Abstract: 내용 없음.
Patent KR-890004660-B1 (KR)
Title: Automatic air conditioning system
Inventor: YIIDA KATSUMI
IPC: G05D23/20
Filed: 1986-03-18
Granted: 1989-11-24
Abstract: The system includes a combined signal producing arrangement which calculates combined signals on the basis of room temperature, fresh air temperature, set temperature and intensity of insolation.  A blower is controlled so that conditioned air is blown at a rate corresponding to the combined signals.  Air mixing door control controls the opening of an air mixing door according to the combined signals.  A mode changing arrangement which, according to a mode changing signal based on the opening of the air mixing door and the heat exchanger temperature, establishes a defrosting mode where conditioned air is blown through a window defrosting opening.
Patent KR-940005550-B1 (KR)
Inventor: ZEHLER EUGENE R
IPC: C10N20/04
Filed: 1986-06-20
Granted: 1994-06-20
Abstract: 내용 없음.
Patent KR-930008094-B1 (KR)
Title: Method for preparing inhibit angiotensin converting enzyme
Inventor: SHOLKENS BERNHARD
IPC: A61P7/02
Filed: 1986-10-15
Granted: 1993-08-25
Abstract: The preferred angiotensin converting enzyme inhibitors have the formula I <IMAGE> in which n is 1 or 2, R, R<1>, R<2> and R<3> are identical or different and each is hydrogen or an organic radical, and R<4> and R<5> form, together with the atoms carrying them, a mono-, bi- or tricyclic heterocyclic ring system. Agents containing these compounds for treating the specified diseases are also described.
Patent KR-900006351-B1 (KR)
Title: Analying method of steel
Inventor: LEE YONG-DUK
IPC: G01N31/20
Filed: 1986-12-30
Granted: 1990-08-28
Abstract: The method for quantitatively measuring precipitations comprises (i) polishing the steel sample with diamond powder, (ii) covering a half of sample surface with Lacomit paint, (iii) etching the sample surface, (iv) measuring the number(ns) and average diameter (ds) of precipitations per unit surface area of the etched sample, (v) measuring the etched depth on the boundary face of the etched part and the painted part after peeling the covered paint, and (vi) converting the number of precipitations into volume percentage by the following formula; fv'= /6.ns(ds2+as2). (ds/te).
Patent KR-900004369-B1 (KR)
Title: Bridge circuit
Inventor: MIYAZAKI ATSISI
IPC: G01B7/00
Filed: 1987-03-20
Granted: 1990-06-23
Abstract: The strain gauge bridge circuit has a bridge circuit comprising strain gauges. A zero-point temp. compensation circuit is connected to one of a pair of output terminals of the bridge circuit and includes a voltage dividing resistor circuit. A voltage is generated, equal to a potential appearing at one output terminal at a predetermined temp. A second temp. compensation circuit is connected to the other of the output terminals and includes a resistive element having a temp. characteristic which is the same as that of the semiconductor strain gauges.
Patent KR-900004725-B1 (KR)
Title: Power voltage regulator circuit
Inventor: TZUJIMOTO JUNYICHI
IPC: H03F3/34
Filed: 1987-05-30
Granted: 1990-07-05
Abstract: The power voltage regulator circuit has a power terminal to which an external power voltage is supplied, an output line, and a voltage- drop circuit connected between the power terminal and the output line. The voltage drop circuit includes an N-channel MOS transistor having a drain connected to the power terminal and a source connected to the output line, a constant voltage generator for supplying a voltage, lower than the external power voltage, to a gate of the MOS transistor, and a semiconductor well whose surface area serves as a channel region of the MOS transistor.
Patent KR-900000045-B1 (KR)
Title: The cmos column decorder involving static moving
Inventor: CHOI YUN-HO
IPC: G11C11/407
Filed: 1987-06-25
Granted: 1990-01-18
Abstract: The decoder for making output of I/O gate zero without the help of auxiliary clock signals when I/O gate is not selected includes a main decoder (302) for inputting decoding clock signals (0AI,0AJ,0AK) to PMOS transistors (201,202,203) and NMOS transistors (109,110,111) and for driving I/O gates (300,300',300", 300"',303,303',303",303"') according to the decoding clock signals, and an I/O gate driver (301) for driving I/O gates (300,303) when signals of I/O gate drivers is not selected utilizing the output signals of main decoder and decoding clock signals.
Patent KR-940011457-B1 (KR)
Inventor: MEGURO KANJI
IPC: A61K31/535
Filed: 1987-07-01
Granted: 1994-12-15
Abstract: 내용 없음.
Patent KR-900007144-B1 (KR)
Title: Recording/reproducing apparatus of optical disc
Inventor: ONO DAKURO
IPC: G11B19/04
Filed: 1987-08-25
Granted: 1990-09-29
Abstract: A gear member includes a projection, the gear member being rotatable by a motor. An ejection slider has a first end engageable by a projection, the ejection slider being translatable along a first direction when the motor is energised to rotate the gear member to bring the projection into contact with the first end, the first direction lying along an axis between the first and second end of the ejection slider. A first ejection lever has a first end, a second end, and a rotation pint between, the rotation pint being rotatably fixed to the main chassis.
Patent KR-910001251-B1 (KR)
Inventor: SUYAMA MICHIYO
IPC: G01C17/28
Filed: 1987-10-06
Granted: 1991-02-26
Abstract: 내용 없음.
Patent KR-900009098-B1 (KR)
Inventor: KENZOU KASSAI
IPC: B62B7/08
Filed: 1987-11-25
Granted: 1990-12-22
Abstract: 내용 없음.
Patent KR-900000572-B1 (KR)
Title: A composite membrane/electrode structure having islands of catalytically active particles
Inventor: MCMICHAEL JAMES W
IPC: C25B1/46
Filed: 1987-12-18
Granted: 1990-01-31
Abstract: A composite membrane-electrode structure comprises an ion exchange membrane having islands of catalytically active particles bonded to at least one surface of the membrane.  The islands have a diameter or width of 6 micron-1cm.  Less than 75% of the membrane surface is covered with the active particles.  The active particles are disposed on an electrically conductive, pref. electroformed metallic, screen having openings passing therethrough.  The electrode is suitable for fuel cells.
Patent KR-900006874-B1 (KR)
Title: Fuel control device
Inventor: YAMADA TOSHIHIRO
IPC: F02D45/00
Filed: 1987-12-24
Granted: 1990-09-24
Abstract: The fuel control device has a proper correction value calculated from the contents of memories corresponding to adjacent representative points. Every condition of the amount of mixture drawn in is met by selecting representative points to represent the tendency of a flow- dependency characteristic change of intake sensor output. A proper correction value is so obtained in a region where the negative feedback of air-fuel ratio is controlled as well as in a region where the negative feedback can not be controlled.
Patent KR-900004523-B1 (KR)
Title: Layered dehydrogenation catalyst particles
Inventor: TAMOZ AMAI
IPC: C10G45/04
Filed: 1987-12-28
Granted: 1990-06-29
Abstract: Catalyst particulates for the dehydrogenation of hydrocarbons are formed by combining a platinum metal component and a modified metal component consisting of thin, germanium, rhenium, or their mixt with a solid heat resistant oxide carrier. The solid carrier has a nominal equivalent dia. of at least 850 microns. The average concn. of the platinum metal component and the modified metal component at the external layer (100 microns thickness) of the catalyst particulates is at least twice the average concn. of the platinum metal component and that of the modified metal component in the central core (200 microns dia.) of the catalyst particulates.
Patent KR-920001365-B1 (KR)
Title: Nozzle
Inventor: CHONG SEONG-GI
IPC: B67C3/02
Filed: 1988-05-02
Granted: 1992-02-11
Abstract: A nozzle set for filling machine comprises a center  housing, a solution supply tube installed perpendicularly to the housing on the side, an air supply tube inserted concentrically into the said housing on the top, a nozzle housing joined by a lower cap to  the lower part of the said center housing, a nozzle  attached  to  the air supply tube in the nozzle housing, and an upper cap mounted on the top of the air supply tube. The nozzle has several holes  with different angles of inclination from  one  another  on  the  lower part. This nozzle set is  used  for  any  solution  regasdless  of viscosity, removes foaming, and cleanses the edge of the nozzle by air.
Patent KR-950010882-B1 (KR)
Title: Tv/video signal auto changing circuit
Inventor: YUN JONG-YOL
IPC: H04N5/44
Filed: 1988-05-14
Granted: 1995-09-25
Abstract: The circuit is for switching a TV mode to a video mode automatically when a video signal is externally applied to a TV. The circuit includes a synchronous signal extractor(9) for extracting a synchronous signal from a video signal externally applied, a control voltage generator(8) for generating control voltage according to integrated synchronous signal, and a switching circuit(11) for switching TV/video mode according to control voltage generated by the control voltage generator.
Patent KR-900003739-B1 (KR)
Title: 5'-inosinic acid producing microorganism
Inventor: HYUN HYUNG-HWAN
IPC: C12N15/00
Filed: 1988-06-04
Granted: 1990-05-30
Abstract: The 5'-inosine acid producing microorganism which is lacking in the activity of urease is presented. Thus, the title microorganism belongs to Brevibacterium sp. and requires adenine for growth. The biochemical characters of the above microorganism (KFCC-10617) are adenine-auxotroph, deficient in activity of urease, and high sensitivity to lysozyme.
Patent KR-900005574-B1 (KR)
Title: Manufacturing method of imitation leather by hemp etc
Inventor: HONG YOUNG-GIL
IPC: D06N7/00
Filed: 1988-06-25
Granted: 1990-07-31
Abstract: A sheet is prepd. by beating of fiber extracted from hemps through the first and second digesting processes in a chester in order to digest a fiber of 100% hemp cellulose, cellulose spray process using a multistep cellulose spraying appts. and impregnation of the fiber with a synthetic polymer (comprising liq.  solution SBR or emulsified SBR);.  The leathe-like paper improves elongation property of hemp fibric.
Patent KR-910008558-B1 (KR)
Inventor: GOHARA YOSIAKI
IPC: C08J7/04
Filed: 1988-07-21
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-970005352-B1 (KR)
Inventor: SAKURAI MASSAAKI
IPC: G06K19/06
Filed: 1988-08-06
Granted: 1997-04-15
Abstract: 내용 없음.
Patent KR-910010086-B1 (KR)
Title: Expansion dowel assembly
Inventor: WEGNER ARNDT
IPC: F16B13/06
Filed: 1988-09-21
Granted: 1991-12-14
Abstract: The expansion dowel, consisting of an anchor bolt (1) and an expansion sleeve (2), is radially enlarged by driving the expansion sleeve (2) onto a broadening (1e) of the anchor bolt (1), and is anchored in the drilled hole. The broadening (1e), designed as a concave bulge, results in an increasing conicity in the insertion direction, as a result of which the subsequent expansion of the expansion dowel is limited. Cutting teeth (2d, 2e, 2f), which are arranged on the front end region of the expansion sleeve (2) and have a saw-tooth-shaped profile, deposit a proportion of the retention material on the wall of the drilled hole, when the expansion sleeve is driven forward, and thus create an undercut. In order to attain easier deformability, the expansion sleeve (2) is provided on its outer side with a ring slot (2g) in the region adjacent to the cutting teeth (2d, 2e, 2f) in the direction opposite to the insertion direction. 
<IMAGE>
Patent KR-910007180-B1 (KR)
Title: Sid-wall doped trench copacitor cell using self-aligned contact and a method manufacturing thereof
Inventor: OM JAE-CHOL
IPC: H01L27/108
Filed: 1988-09-22
Granted: 1991-09-19
Abstract: A dynamic RAM with side  wall  doped  trench  capacitor  cell comprises:  trench  capacitor   formed   in   silicon   substrate, locomotion gate formed at silicon surface adjacent to the  trench, drain N+ region connected with charge storage electrode of  trench capacitor, source N+ region connected with conducting layer of bit line. The polysilicon layer for interconnection line  is  used  to connect the drain N+ region with the charge storage electrode  and to overlap with the first insulating layer deposited at upper side of gate electrode. The bit line is connected  at  center  part  of polysilicon layer for interconnection line.
Patent KR-920000301-B1 (KR)
Inventor: YASUDA MASAHIRO
IPC: A45D8/24
Filed: 1988-09-23
Granted: 1992-01-11
Abstract: 내용 없음.
Patent KR-930006644-B1 (KR)
Inventor: NAKAYAMA SHIRO
IPC: G01P15/09
Filed: 1988-10-14
Granted: 1993-07-22
Abstract: 내용 없음.
Patent KR-950000140-B1 (KR)
Title: Amorphous silicon tft
Inventor: HO CHANG-U
IPC: H01L29/772
Filed: 1988-11-30
Granted: 1995-01-10
Abstract: The method for manufacturing the amorphous silicon transistor comprises forming a gate (2) on a part surface of a glass substrate (1), depositing an insulating layer having two layers structure consisting of strong dielectrics and one dielectrics including SiN or SiO2, and forming amorphous silicon layer (a-Si:H), n+ amorphous silicon layer (n-a-Si:H) and Al layer for source/drain electrode.
Patent KR-950010085-B1 (KR)
Inventor: PRAGER BERNHARD CHRISTIAN
IPC: C07D501/00
Filed: 1987-09-09
Granted: 1995-09-06
Abstract: 내용 없음.
Patent KR-920005319-B1 (KR)
Inventor: SAEKI SYUJO
IPC: H01L25/07
Filed: 1989-04-04
Granted: 1992-07-02
Abstract: 내용 없음.
Patent KR-930005881-B1 (KR)
Inventor: OHNO YUDAKA
IPC: B25J9/12
Filed: 1989-07-20
Granted: 1993-06-25
Abstract: 내용 없음.
Patent KR-0172447-B1 (KR)
Inventor: BRADLEY RALPH AMPTON
IPC: G02B3/00
Filed: 1989-08-22
Granted: 1999-03-30
Abstract: 전면 투사 스크린은 홈들에 의해 분리된 렌즈들을 구비한다.  블랙 리브들이 돌출하는 블랙 플라스틱 구조체가 상기 렌즈들과 함께 정렬되어 상기 리브들이 홈의 양 측면에 대해 간극을 가지면서 상기 홈들로 돌출한다.  전면 투사 스크린에 있어서, 리브들이 돌출하는 베이스는 상기 렌즈들의 팁부의 형태에 합치되는 형태를 이루면서 광을 흡수한다.  양호하게, 상기 구조체는 렌즈 어레이를 생성하는 동일한 기구 및 복제 기술을 이용해서 제조되는 금형 플라스틱이다.
Patent KR-930006875-B1 (KR)
Inventor: USUI JUNICHI
IPC: B61L23/00
Filed: 1989-08-31
Granted: 1993-07-24
Abstract: 내용 없음.
Patent KR-970003599-B1 (KR)
Inventor: WINDLE TOM J
IPC: F03B13/22
Filed: 1989-10-06
Granted: 1997-03-20
Abstract: 없음
Patent KR-960011715-B1 (KR)
Title: Sealing member for a container
Inventor: GALDA MICHAEL P
IPC: B65D/
Filed: 1988-08-23
Granted: 1996-08-30
Abstract: A sealing member for a container has a membrane, e.g. aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab, to enable the seal to be detached. The seal can be attached to the neck of a bottle by a hot melt adhesive. The sheet and membrane can be stamped from a compound sheet and be of the same size. The composite portion can extend up to a line extending across a major portion of the membrane, or in another embodiment it covers a major portion of the membrane. Alternatively, the first sheet and the membrane can have a substantially common periphery in the separated portion of the sealing member forming the tab. A further embodiment provides for a sealing member that is entirely planar.
Patent KR-0123372-B1 (KR)
Inventor: BELLOTTI MARC
IPC: A61M1/14
Filed: 1989-04-13
Granted: 1997-11-19
Abstract: 내용 없음.
Patent KR-930005062-B1 (KR)
Inventor: FUJITA TAKESHI
IPC: C11D13/18
Filed: 1990-04-18
Granted: 1993-06-15
Abstract: 내용 없음.
Patent KR-930002878-B1 (KR)
Title: Apparatus and method to autoamtically set the time by the second by time signal
Inventor: PARK JAE-WAN
IPC: G04R20/22
Filed: 1990-05-31
Granted: 1993-04-12
Abstract: An automatic time setting device for  a  watch  automatically sets the time by second level,  receiving  the  broadcasting  time signal. In a watch system made of a  crystal  oscillator,  several counters, a 7-segment transformer, a time  displayer  and  key  in member, the time setting device includes a demodulator, a low band filter, a trinary system counter, AND  gates,  R-S  flip-flops,  a comparator, a NOR gate, a frequency divider, OR gates.
Patent KR-920006782-B1 (KR)
Title: Pyrimidine derivatives
Inventor: HECIK ROBERT
IPC: C07D239/38
Filed: 1990-06-19
Granted: 1992-08-17
Abstract: The present invention relates to a process for the preparation of 2-mercapto-4,6-bis-fluoroalkoxypyrimidines of the formula   <IMAGE> wherein R1 is C1-C4alkyl, phenyl or benzyl and each of T1 and T2 independently of the other is hydrogen or a -CHX1X2 group, wherein each of X1 and X2 independently of the other is trifluoromethyl, fluorine, chlorine or bromine. In accordance with this process, 2-mercapto-4-halo-6-hydroxy-pyrimidines of the formula   <IMAGE> wherein R1 is as defined above and Y is chlorine or bromine, are reacted with chlorodifluoromethane or a 1,1-difluoroalkene of the formula   <IMAGE>  wherein each of the X1 and X2 independently of the other is trifluoromethyl, fluorine, chlorine or bromine, in an inert solvent and in the presence of a strong base, to give a 2-mercapto-4-halo-6-fluoro-alkoxypyrimidine of the formula    <IMAGE> wherein R1, Y and T1 are as defined above, said 2-mercapto-4-halo-6-fluoroalkoxypyrimidine is converted by subsequent reaction with an alkali metal nitrite or an alkaline earth metal nitrite into a 2-mercapto-4-hydroxy-6-fluoroalkoxypyrimidine of the formula   <IMAGE>  wherein R1 and T1 are as defined above, and then said 2-mercapto-4-hydroxy-6-fluoroalkoxypyrimidine is converted by reaction with chlorodifluoromethane or a 1,1-difluoroalkene of the above formula into a 2-mercapto-4,6-bix-fluoroalkoxypyrimidine of the above formula. The 2-mercapto-4,6-bis-fluoroalkoxypyrimidines of the above formula are intermediates for the preparation of herbicidally effective sulfonylureas.
Patent KR-0159768-B1 (KR)
Title: Stable injectable pharmaceutical formulation for folic acid and leucovorin salts
Inventor: HAEGER BRUCE EDWIN
IPC: A61K47/18
Filed: 1990-07-31
Granted: 1998-12-01
Abstract: Injectable aqueous compositions comprising folic acid and leucovorin and their salts, optionally including benzyl alcohol, sodium chloride and agents for adjusting pH are stabilized and buffered in the range of 6 to 10 by adding a combination of tromethamine and monothioglycerol. Such compositions remain stable for prolonged periods even when exposed to sunlight.