baber/WOPTO huggingface dataset:
Patent KR-820002079-B1 (KR)
Title: Esters of amino acid for the control of pests
Inventor: HENRICK CLIVE A
Filed: 1978-03-20
Granted: 1982-11-04
Abstract: Pesticidal title compds. (I; Y=H, Cl, F; R6=H, CN) were prepd. by reaction of II(X=OH, Br, Cl) and III.  Thus, Me2CHCHBrCO2H was treated with SoCl2 to give the acid chloride, which was esterified with HOCH2C6H4OPh-m to give Me2CHCHBrCO2CH2C6H4OPh-m, which was aminated with PhNH2 to give PhNHCH(CHMe2)CO2CH2C6H4OPh-m.
Patent KR-830001100-B1 (KR)
Title: 4-치환 1, 2-디페닐-3, 5-디옥소 피라졸리딘의 제조방법
IPC: C07D231/34
Filed: 1979-04-12
Granted: 1983-06-11
Abstract: 내용 없음.
Patent KR-820000898-B1 (KR)
Title: Rolling apparatus for steel pipe of steel blank
Inventor: YOSHIDA KEI ICHIRO
IPC: B21B19/06
Filed: 1980-07-31
Granted: 1982-05-24
Abstract: This invention is the rolling apparatus which manufactures the workpiece of steel tube into the worked steel tube which gets thinner in thickness and wider in diameter. The worked steel tube is formed by putting the workpiece, in which the plug is inserted, in the middle of the roll unit, which consists of breakdown rolls and sizing rolls, backing the latter simultaneously with going the former forward, rotating the latter at a constant rate and returning the latter to the original station.
Patent KR-840002007-B1 (KR)
Title: Process for the preparation of a furan derivative
Inventor: BRADSHAW JOHN
IPC: C07D203/12
Filed: 1981-01-08
Granted: 1984-10-27
Abstract: Furan derivs. [I; Me = methyl; R1 = -CH2CH2L; L = leaving group; R2 = H  useful as H2-receptor antagonists, were prepd. by the reaction of thiol[II  and III. Thus, 3.81 g thiourea melted in 12.5 ml conc. chloric acid and mixed with 7.76g 5-[(dimethylamino) methyl -2- furanmethano. This was then reacted with 10 g sodium hydride and 10 g  sodium adithiate to give 5.84 g 5-[(dimethylamino)methyl -2- furanmethylthiol, oxalic acid salt[1:1 .
Patent KR-890001426-B1 (KR)
Title: Process for the preparation of carbapenem compounds
Inventor: MIYADERA TETSUO
IPC: A61K31/40
Filed: 1982-08-19
Granted: 1989-05-03
Abstract: Carbapenem compds. of formula (I) and their pharmaceutically nontoxicant salts are new.  In (I), R1 is H, C2-3 alkyl, 1hydroxyethyl or 1-hydroxy-1-methylethyl; R2 is a group of formula (II) [R=H, alkyl, cyanoalkyl, haloalkyl, alkoxyalkyl, alkythioalkyl, hydroxy, halogen; Y=H, hydroxy, alkyl, aliphatic acyl or -C(R5)=N-R6; R5=R6=H or alkyl ; R3 is (protected) carboxy. (I) are useful as broad spectrum antibacterials with a low toxicity.
Patent KR-920007241-B1 (KR)
Inventor: BOENSTROEM BENGT NILS VIKTOR
IPC: E01B5/04
Filed: 1983-07-19
Granted: 1992-08-28
Abstract: 내용 없음.
Patent KR-830002894-B1 (KR)
Title: Process for preparation of pyridazine derivatives
Inventor: JOJIMA TERUOMI
IPC: C07D413/12
Filed: 1983-10-17
Granted: 1983-12-30
Abstract: The title compds.  I (R1, R3=halo or H, halo; R2=H, lower alkyl, alkox halo, YC(X)NR4R5; R4, R5=halo- or alkyl-substituted Ph or PhCH2, alkyl; NR4R5=(un)substituted heterocyclyl; X, Y=O, S , useful as agricultural fungicides, were prepd.  Thus, refluxing a mixt.  of 1.27g 6-(3,5-dichloro-4-methylphenyl)-3-pyridazone, 0.87g K2CO3, 1.3g N, N-dimethyk-carbamoyk chloride, and 50mL acetnitrile for 14 hrs.  gave 0.9g 3-N, N-dimethylcarbamoyoxy-6-(3,5-dichloro-4methylphenyl)-pyridazine.
Patent KR-910004777-B1 (KR)
Title: Spray dryer and operating method thereof
Inventor: LOEFFELMANN RUDOLF
IPC: B01D1/18
Filed: 1984-01-21
Granted: 1991-07-13
Abstract: A spray dryer consisting of a tower-like drying container with spraying elements for introducing therein the material to be dried, pipelines and heater for injecting a heated drying gas, and a separator for separating dry fine material and gas. The dry fine material is agglomerated inside the drying tower. The separator consists of porous filter tubes, on which a dust-laden gas stream impinges, which covers the entire flow cross-section of the drying tower. Fine product material deposited on the filter tubes is shaken off by surges of compressed air and drops into a drying zone, a spraying zone, and finally, into a collecting hopper.
Patent KR-840001185-B1 (KR)
Title: Process for preparing 2-(3-aryl-5-isoxazol) benzoyl halide
Inventor: HOWE ROBERT KENNETH
IPC: C07D261/08
Filed: 1984-02-22
Granted: 1984-08-18
Abstract: Title compd. (I; X, Y=H, trifluoromethyl; X1=halogen) useful as herbicides, were prepd. by the reaction of II and acid halide or H2O. Thus, 30g 3'-(m-trifluouomethhyl-pheyl)- spiro≮isobenzofuran-1(3H), 5'(4'H)-isoxazol≉-3-one, 150 ml thionyl chloride and 5 drops of H2O were refuluxed for 2 hr to give 1.47g 2-≮3-(trifluoromethylphenyl)-5- isoxazole≉benzoyl chloride.
Patent KR-850000655-B1 (KR)
Title: Flexible double face knitting fabrics
Inventor: LEE HAE-U
IPC: D04B1/14
Filed: 1984-05-31
Granted: 1985-05-07
Abstract: Flexible double-faced knitting fabrics, used as hosiery, are composed of synthetic fiber filament (1) and polyester film filament (5) to be metal-coated. (5) protrudes on the surface of the fabric without elongation due to separate feeding of each fiber filament. The following schematic diagram describes the feeding method of each fiber, where 2, 3: feeding hole; 4: bobbin; and 5: polyester film filament.
Patent KR-890004493-B1 (KR)
Title: Fluid measuring meter
Inventor: NOJIMA SINGICHI
IPC: G01F3/18
Filed: 1984-07-11
Granted: 1989-11-06
Abstract: The assembly includes a housing having inlet and outlet ports, at least two pistons provided respectively in respective cylinders in the housing.  Metering chambers are defined respectively on one side of respective pistons and passages are formed in the housing for communicating the metering chambers with inlet and outlet ports.  A valve mechanism is provided in the housing and associated with the movement of pistons for communicating either of the metering chambers with the inlet port and communicating the other of metering chambers with the outlet port. The flow meter for oil supply appts. has high accuracy irrespective of variations in liquid pressure.
Patent KR-910006632-B1 (KR)
Inventor: KISHIDA HIROSHI
IPC: C07C239/00
Filed: 1984-09-04
Granted: 1991-08-29
Abstract: 내용 없음.
Patent KR-940005804-B1 (KR)
Title: Collapsible container
Inventor: BOONE DEBRA G
IPC: B65D83/00
Filed: 1984-10-17
Granted: 1994-06-23
Abstract: A collapsible container 10 comprising a flexible bag including a spot 20 having an opening through which liquid is fed into and dispensed from the bag, and liquid passage means 30 inside of the bag in liquid communication with the spout opening for aiding in the dispensing of liquid from the bag. The liquid passage means is preferably integral with a wall of the bag but may be a separately formed elongate web heat sealed into the bag on making the bag.
Patent KR-910002806-B1 (KR)
Inventor: HAYASI YUKIZI
IPC: G06Q10/08
Filed: 1985-02-15
Granted: 1991-05-04
Abstract: 내용 없음.
Patent KR-870001212-B1 (KR)
Title: Magnetic head assembly of floppy disk driver
Inventor: JONG JAE-UNG
IPC: G11B5/48
Filed: 1985-03-04
Granted: 1987-06-20
Abstract: A supportor(6) is projected in the rear portion of the head cartridge which has the lower magnetic head on its edge.  The rear portion of the head arm(4), which is provided on the upper magnetic head edge, is connected to the upper plane of the supporter by plate springs(5,5').  A supporting piece(11), which has a fixing portion and a supporting portion, is fixed on the supportor(6).  Hollowed portions are made in the front portion of the head arm with a constant distance.  A winding spring(12) is fixed on the mid portion of the piece(11) and its one edge is inserted to the hollowed portion(4C).  An adjusting bolt(13) is inserted to the bolt hole of the piece and its lower portion is in contact with the spring(12).
Patent KR-870001516-B1 (KR)
Title: Manufacturing method of regin coverted iron wire
Inventor: CHOE O-YONG
IPC: B05D7/20
Filed: 1985-03-08
Granted: 1987-08-22
Abstract: This invention relates to the manufacturing method of a resin covered iron wire which has a characteristics of maintaining the operatisual temperature for covering under the melting point of the resin for coating.  The method is as follows; an iron wire is heated by electic resistance once or more and cooled by a cooling apparatus.  After the scale is removed from the iron wire through the sanding apparatus, the wire is coated with a liquid resin.
Patent KR-930000389-B1 (KR)
Inventor: PEAL SAMIEL B
IPC: H01J29/86
Filed: 1985-06-24
Granted: 1993-01-16
Abstract: 내용 없음.
Patent KR-940003704-B1 (KR)
Inventor: POSTER JOHN P
IPC: G21C3/07
Filed: 1986-03-04
Granted: 1994-04-27
Abstract: 내용 없음.
Patent KR-880000262-B1 (KR)
Title: Brominated hydroxyaromatic compounds and process for the preparation
Inventor: MENDOZA ABEL
IPC: C08G59/06
Filed: 1986-08-01
Granted: 1988-03-15
Abstract: Compounds (I) are prepared by bromination of the formula (III) with Br. 20.0g tetramethylbis phenol E in 75ml CCl4 was refluxed with 8.4ml Br at 23-25≰ to give 29.2g solid which contained 93% dibromo tetramethyl bisphenol and 7% mono- or tri-bromo tetramethyl bis phenol.  In the formula, n is o or a positive integer; X is Br or H; R is primary or secondary C1-6 alkyl; Ra is H or C1-12 alkyl and the hydroxyl group can be replaced by the corresponding eposide.
Patent KR-910005769-B1 (KR)
Title: Preparation for the p-oxi benzoil copolyester
Inventor: PARK HO-JIN
IPC: C08G63/185
Filed: 1986-08-05
Granted: 1991-08-03
Abstract: The P-oxybenzoil copolyester (I) is  prepd.  by,  adding  the trimer ART-II (II) and the RD cpd (III) with the TPA  (IV),  where the mole wt. is equal to or more 5 mole. % than TPA,  heating  and stirring to 220-330 deg.C in presence of N2 gas;  removing  acetic acid  of byproduct  forming  during  the  stirring,  and  vacuumreacting for 0.5-60 min. to make the molecular wt.  for  moulding. In the formulas, k, l, m, n and p are 0-1500; k/(k+l+m+n+p) x 100= a(%), a=50-100%.
Patent KR-890002415-B1 (KR)
Title: Expression vector pksobh producing method for human r-interferon
Inventor: KO HYONG-GON
IPC: C12N15/00
Filed: 1986-08-07
Granted: 1989-07-03
Abstract: A method for producing polypeptide using transformed E. coli is presented.  Thus, 6.7Kb of DNA fragment from pHK-3 (KFCC-10237) and 1.6Kb of DNA fragment from pKSγ 3B were ligated by T4 DNA ligase to produce pKSγ3BH, which has an ability to express Hu-IFNr with high yield.  The productivity of Hu-IFN-γ by the E. coli contg. recombinant plasmid vector pKSγ 3BH was 1,000 copies/cell.
Patent KR-910005112-B1 (KR)
Inventor: COTZAS GEORGE M
IPC: H02K9/19
Filed: 1986-09-15
Granted: 1991-07-22
Abstract: 내용 없음.
Patent KR-950007899-B1 (KR)
Inventor: BELL ISAAC M
IPC: H04N5/44
Filed: 1986-09-26
Granted: 1995-07-21
Abstract: 내용 없음.
Patent KR-900003173-B1 (KR)
Title: Magnetic tape's starting and ending marking method
Inventor: SON BIN
IPC: G11B15/08
Filed: 1986-11-27
Granted: 1990-05-09
Abstract: The marks are printed at the begin of tape (BOT) and end of tape (EOT) of magnetic reel tape by applying reflecting paint. Silver white powder (3-4g) is mixed with volatile liquid and the mixture is applied to the BOT and EOT of the magnetic tape. The marks reflect light so that the BOT and EOT are detected by a detecting circuit having light emitting device and photo tran sistor.
Patent KR-890003814-B1 (KR)
Title: Manufacturing method of an electroplating steel sheets with 2-layers zn-ni
Inventor: KIM TAE-YOB
IPC: C25D5/10
Filed: 1986-12-30
Granted: 1989-10-05
Abstract: Zn-Ni alloy is plated in the bath containing total metal ion of 1.5- 2.0 mole/l, mole rate of Ni ion of 0.08-0.10 and chlorine ion of 270- 310g/l, and having pH of 4.0-5.0 at 55-70 deg.C and the speed of current of more than 2.0m/sec.  The method is characterized by (i) preliminary plating on the surface of steel sheet with the current density of 80-140 A/dm2, and (ii) main plating on the surface of preliminary plated steel sheet with the current density of 10-30 A/ dm2.  The plated layer has a good corrosion protection.
Patent KR-940001392-B1 (KR)
Inventor: LYNCH WILLIAM T
IPC: H01L21/033
Filed: 1985-10-18
Granted: 1994-02-21
Abstract: 내용 없음.
Patent KR-930004374-B1 (KR)
Title: Biphenyl esters and liquid crystal materials and devices containing them
Inventor: BRADSHAW MADELINE J
IPC: C07C69/76
Filed: 1986-09-22
Granted: 1993-05-26
Abstract: PCT No. PCT/GB86/00040 Sec. 371 Date Oct. 30, 1986 Sec. 102(e) Date Oct. 30, 1986 PCT Filed Jan. 21, 1986 PCT Pub. No. WO86/04327 PCT Pub. Date Jul. 31, 1986.Biphenyl esters of formula (I), wherein formula (II) represents formula (III) or formula (IV), R1 represents C3-C12 alkyl, alkoxy, alkylcarbonyloxy, alkoxycarbonyl or alkoxycarbonyloxy, j is 0 or 1, R2 represents C3-C12 alkyl or alkoxy, one of Q1 or Q2 is fluorine and the other is hydrogen, provided that when j is 0 and formula (II) is formula (III) and both R1 and R2 are n-alkyl, then the total number of carbon atoms in R1 and R2 is more than 12. These compounds may be used as constituents of liquid crystal mixtures which show a room temperature ferroelectric smectic phase, and a number of such mixtures are described.
Patent KR-960001473-B1 (KR)
Inventor: UEMURA YAHIRO
IPC: A61K38/00
Filed: 1987-05-19
Granted: 1996-01-31
Abstract: 내용 없음.
Patent KR-950001666-B1 (KR)
Title: Variable transmission glazings and method of making same
Inventor: ARRIBART HERVE
IPC: C03C17/42
Filed: 1987-07-03
Granted: 1995-02-28
Abstract: The invention relates to coated glass substrates for obtaining a variable degree of light transmission therethrough. The coated substrate comprises successively, (1) a first transparent support plate, preferably formed of glass, (2) a transparent electroconductive layer, (3) a layer of an electrochromic material, (4) a proton conductive electrolytic layer having an organic polymer base, (4a) an optional counterelectrode layer, (5) a second electroconductive layer and (6) a second transparent support plate. A proton conductive polymer is selected for the electrolyte whose conductivity is greater than or equal to   <IMAGE>   wherein the layer has a thickness of less than 50 micrometers.
Patent KR-920003420-B1 (KR)
Inventor: MINAMISAWA TSUYOSHI
IPC: C08K3/40
Filed: 1987-12-26
Granted: 1992-04-30
Abstract: 내용 없음.
Patent KR-950008168-B1 (KR)
Title: Disposable absorbent garment
Inventor: PROXMIRE DEBORAH L
IPC: A61F13/15
Filed: 1987-12-31
Granted: 1995-07-26
Abstract: An anatomically form-fitting generally self-adjusting disposable absorbent garment (10) and methods of integrating and using the garment. The garment (10) comprises a breathable elastomeric nonwoven fabric outer cover (12) resiliently stretchable in cross-body direction (59), including a pair of leg openings (18), front (13) and rear (14) waist sections fastenable with one another defining a waist opening, a crotch section (16) situated between the leg openings (18) and opposing front (28) and rear (80) panels separated by the crotch section (16). An absorbent insert structure (32) is substantially superposable on the front (28) and rear (30) panels and the crotch section (16), including a liquid impermeable barrier (36), a liquid permeable body side liner (34) and an absorbent composite (38) disposed therebetween. The absorbent insert (32) has opposed longitudinal ends (46, 48) which are attached to the outer cover (12) by bonds or snaps at selected waist attachment zones (68, 70), defining one or more free-span zones (72) of outer cover (12) underlying the insert (32) and having substantially unrestricted functional stretchability therein. The insert (32) may also be attached along the leg openings (18).
Patent KR-910000909-B1 (KR)
Title: Process for the production of f.r.p. articles
Inventor: CHO MUN-SOO
IPC: B29C45/14
Filed: 1988-01-18
Granted: 1991-02-18
Abstract: A method used for forming a FRP golf club  head  comprises  a process of inserting a first pin (4), which is for making  a  neck hole, into a mixture of bubble type fillers  and  epoxy  resin,  a process of producing a core body (1) in molds (5,5'), a process of covering glass fiber (2) and carbon fiber (3) over the  core  body (1) with a second pin (4') inserted into the hole  made  from  the first pin, and a process of heating and pressing  molds  (7,7',7") with a sole plate (6) fixed at the mold (7). The  method  provides enhanced repulsive force of the golf club head.
Patent KR-960011115-B1 (KR)
Title: Biologically stabilised and untanned hides and method for their preparation
Inventor: GAVEND GERARD
IPC: C14C3/00
Filed: 1988-02-11
Granted: 1996-08-20
Abstract: These hides, completely free from chromium, have a moisture content of between 15 and 20%, a maximum inorganic matter content of 10 +/- 2%, an aluminium oxide content of 0.7 +/- 0.2% and an acrylic derivatives content of approximately 2%. Their pH is in the region of 4.0% and their dermic substance content is approximately 85 +/- 3%. They are capable of being rewetted in less than an hour. The process for obtaining them, of the type consisting in subjecting the completely delimed and bated hides to a pickling treatment in the presence of acrylic resin and then, after a rest, to a pretanning treatment with the aid of aluminium salts, is characterised in that there is introduced at any stage of the treatment a chemical agent facilitating the rewetting and enabling the hide to retain, after drying, a residual moisture close to 20% and in that the hide thus treated is subjected to drying. This chemical agent is chosen from the group consisting of polyalcohols, condensates of fatty alcohols with ethylene oxide and condensates of alkylphenols with ethylene oxide.
Patent KR-910001777-B1 (KR)
Title: Guide method and circuit of key controled by the voice
Inventor: SIN YUN-BOK
IPC: G10L13/00
Filed: 1988-03-29
Granted: 1991-03-23
Abstract: The method is for explaining the key functions with the audio message and for instructing the operation methods step by step  so that the users can undestand the functions of the home  appliances easily. The circuit includes a memory for storing the audio  data, a microcomputer  for  sensing  the  key   operation,   an   audio synthesizer for generating the audio messages according to the key operations sequentially. The audio message data  corresponding  to each key operation step is read  from  the  memory  and  an  audio signal is synthesized by the read message data. The  audio  signal is amplified to drive a speaker.
Patent KR-950013596-B1 (KR)
Title: Rotary conductive roller for continuous electroplating of metal strips or other electrically conductive strips
Inventor: BERTRAND GILBERT
IPC: C25D7/06
Filed: 1988-07-07
Granted: 1995-11-13
Abstract: A rotary conductor roll intended to be partially immersed in an electrolyte in a manufacturing line for continuously electroplating a strip (2), the roll includes, on its periphery, at least one electrically conductive active zone (3) and at least one coated zone (41) coated with a flexible material which may optionally be associated with an adhesive and which serves to seal the contact between the strip (2) and the conductive active zone (3) from the electrolyte. At least one intermediate ring (42) is interposed between said conductive active zone (3) and said coated zone (41), said intermediate ring being made of a polymer for which at least one of the following coefficients is intermediate in value between the corresponding coefficients of the material constituting the conductive active zone (3) and of the material constituting said coated zone (41), said coefficients being: coefficient of expansion, flexibility, and swelling due to contact with the electrolyte, e.g. by absorption or by chemical combination.
Patent KR-970011088-B1 (KR)
Inventor: MILES JOHN
IPC: B60G3/20
Filed: 1988-07-27
Granted: 1997-07-07
Abstract: 내용없음.
Patent KR-960011760-B1 (KR)
Title: Process for preparing laminated plastics
Inventor: KURT MEIER
IPC: H05K1/03
Filed: 1988-12-15
Granted: 1996-08-30
Abstract: The process comprises the steps
 i) production of one layer by bringing a fibrous support material into contact with a curable mixture containing an epoxy resin having an average of at least two 1,2-epoxide groups per molecule or a mixture of these epoxy resins and a compound of the formula I or a mixture of these compounds 
<IMAGE>
 in which a and b, independently of one another, are 1 or 2, R<1> is a  pi -arene, R<2> is a  pi -arene or an indenyl or cyclopentadienyl anion, X<-> is an anion [LQm]<-> or an anion of a partially or perfluorinated aliphatic or aromatic sulphonic acid, L is P, As or Sb, Q is fluorine, or some of the radicals Q may alternatively be hydroxyl groups, and m corresponds to the valency of L increased by one,
 ii) production of a layer sequence comprising at least two layer-form materials to be bonded to one another, of which at least one is a layer obtainable in accordance with step i) in which the curable material is essentially in unchanged form, and
 iii) pressing said layer sequence at elevated temperature, the pressure and temperature being selected in such a manner that a liquid matrix resin is present at the beginning of this step, a drop in viscosity takes place initially so that virtually all included gases can escape from the layer sequence, and the increase in viscosity during the subsequent crosslinking reaction takes place so rapidly that the resin flowing out does not stick the compression mould together. 
<??>The laminates obtainable in accordance with the invention are suitable for the production of circuit boards and insulation materials.
Patent KR-920000152-B1 (KR)
Title: Preparation method of vermiculite brick
Inventor: CHON WI-JONG
IPC: C04B14/20
Filed: 1989-04-24
Granted: 1992-01-09
Abstract: A vermiculite brick is mfd.  by  heating  and  sintering  raw vermiculite at 1000 deg.C to make inner pores, mixing the sintered vermiculite with water to keep 80 %  water  content,  adding  33.3 wt.% zeolite to the vermiculite to remove the generating  gas  and neturalize the mixture solution, mixing the mixture with 150  wt.% cement and 20 wt.% water to  the  vermiculite,  press-moulding  at 100-200 kg pressure, and steam-curing at 50-60 deg.C for at  least 50 hours. The brick has a high strength and insulating effect.
Patent KR-940000047-B1 (KR)
Inventor: TOWNSEND RAY T
IPC: A23L13/00
Filed: 1989-04-25
Granted: 1994-01-05
Abstract: 내용 없음.
Patent KR-970011742-B1 (KR)
Inventor: KOMAS AKIRA
IPC: B06B1/04
Filed: 1989-04-27
Granted: 1997-07-15
Abstract: 내용없음.
Patent KR-0123908-B1 (KR)
Inventor: TORIHATA TAKASHI
IPC: C10G25/00
Filed: 1989-05-16
Granted: 1997-11-20
Abstract: 내용 없음.
Patent KR-930003719-B1 (KR)
Title: Preparation of poly(aryl ether/thio ether)-poly(aryl carbonate) block copolymers
Inventor: MULLINS MACHAEL J
IPC: C08G81/00
Filed: 1989-07-08
Granted: 1993-05-08
Abstract: Poly(aryl ether/thioether)-poly(aryl carbonate) block copolymers are prepared by reacting a poly(aryl carbonate) with a poly(aryl ether/thioether) having at least one electron-withdrawing group located in a position ortho or para to its ether/thioether linking group, in the presence of an exchange catalyst. At least a portion of the poly(aryl ether/thioether) blocks are joined to the poly(aryl carbonate) blocks through an ether/thioether oxygen or sulfur atom.
Patent KR-0150443-B1 (KR)
Inventor: HENSCHEN HOMER ERNST
IPC: H05B3/12
Filed: 1989-11-28
Granted: 1998-10-15
Abstract: 내용 없음
Patent KR-910004854-B1 (KR)
Inventor: DAVIS MARK E
IPC: C01B25/45
Filed: 1988-08-24
Granted: 1991-07-15
Abstract: 내용 없음.