baber/WOPTO huggingface dataset:
Patent ES-2362846-B1 (ES)
Title: Dispositivo para el refuerzo y suministro de film plástico.
Inventor: CANALS GUIMERA DAVID
IPC: B29C55/18
Filed: 2011-03-16
Granted: 2012-06-19
Abstract: Dispositivo para el refuerzo y suministro de film plástico.#Este dispositivo comprende: un primer portabobinas (1) de unas bobinas de tiras (11) paralelas de film de refuerzo y un rodillo de concentración (2) giratorio, dotado con unas gargantas perimetrales (21) de paso y concentración de las tiras (11) en cordones (3) independientes destinados a aplicarse paralelamente y en dirección longitudinal sobre la superficie exterior de una bobina de film continuo (41) montada en un segundo portabobinas (4), de forma que dichos cordones (3) quedan distribuidos uniformemente en la anchura del film continuo (41); y una pareja de rodillos (51, 52) de estirado, dotados de motorización y dispuestos en orden consecutivo, por los cuales pasa el film continuo (41) reforzado con los cordones (3), presentando el segundo rodillo (52) de estirado, en su superficie exterior, una velocidad tangencial mayor que la del primer rodillo (51).
Patent ES-2507340-B1 (ES)
Title: Método de obtención de datos útiles para predecir o pronosticar la respuesta al tratamiento con biterapia estándar (interferón pegilado + ribavirina) en pacientes con hepatitis crónica C genotipo 1 (HCC-G1)
Inventor: JIMENEZ MACIAS FERNANDO MANUEL
IPC: G01N33/533
Filed: 2013-04-12
Granted: 2015-10-27
Abstract: Método de obtención de datos útiles para predecir o pronosticar la respuesta al tratamiento con biterapia estándar (interferón pegilado + ribavirina) en pacientes con hepatitis crónica C genotipo 1 (HCC-G1).#La presente invención se refiere a un método de obtención de datos útiles para predecir o pronosticar la respuesta al tratamiento con interferón pegilado más ribavirina en pacientes con hepatitis crónica C genotipo 1 (HCC-G1), combinando varios predictores: los niveles de IP-10, cortisol basal, polimorfismo genético de la Interleucina 28B (IL28B), aclaramiento de la creatina, 2 cargas virales (RNA-VHC) y 5 determinaciones de las lipoproteínas: LDL-colesterol, HDL-colesterol y triglicéridos. Además, la presente invención divulga el kit para predecir o pronosticar la respuesta al tratamiento con interferón pegilado más ribavirina en pacientes con hepatitis crónica C genotipo 1 (HCC-G1) según se indica en la presente invención y sus diferentes usos.
Patent ES-2547930-B1 (ES)
Title: Sistema de tarificación y cobro y procedimiento para el funcionamiento de dicho sistema
Inventor: EGURROLA LEICEAGA JON
IPC: G08G1/017
Filed: 2014-04-08
Granted: 2016-07-15
Abstract: Sistema de tarificación y cobro y procedimiento para el funcionamiento de dicho sistema.#La presente invención da a conocer un sistema de tarificación y cobro y procedimiento para el funcionamiento de dicho sistema que calcula el tiempo real que transcurre entre la entrada y salida del vehículo, que no requiere la utilización de tiquetes que representan un gasto y un consumo de materia prima que podría evitarse. Esto se consigue mediante la implementación de un dispositivo de identificación de entrada (2) que dispone de un lector de datos (23) que adquiere los datos del usuario y gestiona una pre-autorización con un servidor (5) externo de pago con el que el usuario dispone una cuenta. Al salir, un dispositivo de identificación de salida (3) utiliza un segundo lector y correlaciona los datos evitando el uso de tiquetes adicionales.
Patent JO-957-B1 (JO)
Title: Anhydrite- Based Building Element Such As Tiles and Facing Plates
Inventor: KOEPPEL ROBERT
Filed: 1978-03-29
Granted: 1979-12-01
Abstract: Method of producing by moulding building elements such as tiles and facing plates basesd on a binder or an a mixture of binder and aggregate characterised in that the binder is anhydrous calcium sulphate UaSO4 class II or ? also called insoluble anhydrite, of granulometry comprising at least 15% by weight of particles of smaller diameter than 10um and at least 20% by weight of particles of larger diameter than 20um with a median diameter of between 5 and 30 um, associated with one or more anhydrite setting catalysts Materials obtained by the methods of any of claims 1 to 13
Patent JO-2909-B1 (JO)
Title: Gelatin substitution products and applications in the field of foods
Inventor: MARAND PHILIPPE
Filed: 2003-07-15
Granted: 2015-09-15
Abstract: The invention relates to a gelatin substitution product, characterized in that it contains essentially a vegetable fat, in particular in that it contains essentially cocoa butter Application to the production of culinary confectionery preparations Figure 1
Patent KR-790000968-B1 (KR)
Title: Internal combustion engine
Inventor: OHKUNISIHILOSI
Filed: 1974-09-10
Granted: 1979-08-14
Abstract: An engine composed of a main combustion chamber equipping the torch nozzle(5), a sub combustion chamber(6) equipping the internal ignition plug(7) a main carburetor(14) for lean mixture in the main combustion chamber and a sub carburetor(15) for the rich mixture in the sub combustion chamber, has a characteristic that a fixed orifice(21) was installed in the sub-suction air chamber of the sub-carburetor and the velocity of the suction air was fixed in the sonic category when idling.
Patent KR-810001785-B1 (KR)
Title: Casing rinf for watch movement
Inventor: WALKER E
IPC: G04B37/04
Filed: 1977-02-05
Granted: 1981-11-13
Abstract: A casing ring formed of synthetic plastic material is adapted to encircle a watch movement having an external diameter smaller than the internal diameter of a watch case into which it is to be fitted. The ring serves to effectively magnify the movement so that it matches that of the case.  The case is provided with an actuating member intended to cooperate with an operating element.
Patent KR-840000744-B1 (KR)
Title: Improved process for the manufacture of the insectide diazinon
Inventor: SCHILLING BERND
IPC: C07F9/09
Filed: 1980-02-01
Granted: 1984-05-31
Abstract: Diazinone (I) was prepd.  Thus, 170g β-isobutyrylaminocrotonamide and 40g NaOH were boiled with 1000mL isobuthanol at 100≰C and 1200mL xylene, followed by the addn. of 188.5g diethylthiophossphoryl chloride at 120≰C.  After 30 min., the resulting mixt. was cooled to 25≰C and washed with 0.1N HC1 and 0.1N NaOH to give 280g o,0-diethyl-0-(2-isopropy1-4-methyl-6-pyrimidinyl)thionophosphate.
Patent KR-830000899-B1 (KR)
Title: 주파수 트랙킹회로
IPC: H03D3/22
Filed: 1980-02-04
Granted: 1983-04-26
Abstract: 내용 없음.
Patent KR-820001078-B1 (KR)
Title: Precess for preparation of l-chloro-diethylc-arbonate
Inventor: PARK S
IPC: B01J19/12
Filed: 1980-12-23
Granted: 1982-06-21
Abstract: α-Chloro-diethylcarbonate (I), useful for enhancing absorptiveness and durability of medicine, was prepd. by chlorination of diethylcarbonate (II) with Cl2 in the presence of CCl4 under the ultraviolet rays. Thus, dried Cl2 (2 mole) and N2 gas was flowed in the diethylcarbonate 236.6 g (2 mole) at -3-0≰C for 5 hr under the ultraviolet rays and then unreacted diethylcarbonate was eliminated to give compd. (I) 24 g (b.p. 160-163≰C, yield 7.2%).
Patent KR-820000992-B1 (KR)
Title: Elekctrical insulating resin comprizing a polyester resin
Inventor: DACHIKI S
IPC: C08L67/00
Filed: 1982-04-16
Granted: 1982-06-04
Abstract: Title compd., useful for coating material, was prepd. by reacting more than trivalent of polyhydric alcohol and polyacid, divalent alcohol, dibasic acid, monobasic acid contg. aromatic group, 5 membered imide ring compd., and monovalent alcohol contg. aromatic group. Thus, ethylene glycol 297.6g, tris-(2-hydroxyethyl) isocyanurate 556.8g, terephthalic acid 614.2 g, trimellitic anhydride 153.6 g, diaminodiphenylmethane 79.2 g, isophthalic acid 83.0g, phenyl acetic acid 108.8g and meta-cresol 210.4 g was reacted at 185-230≰C for 8 hr. The obtained esterimide resin was mixed with meta-cresol 730 g, TBT 16.5 g, and Zn naphthenate 5.5 g to give varnish.
Patent KR-880000139-B1 (KR)
Title: Arc extinguish chamber
Inventor: NISHIJAGO SHIZDAKA
IPC: H01H9/34
Filed: 1982-07-06
Granted: 1988-03-12
Abstract: The calcined insulator of an inorganic composite obtd. by moulding and heat treating under pressurised conditions comprises a starting material contg. 10-50, pref. 20-40 wt.% mica powder as base material; 10-50, pref. 20-40 wt.% MgO powder as a charging material; and 25-60, pref. 30-50 wt.% binder comprising a mixt. of boric anhydride, ZnO and boric acid as 20-60 pts. wt.%  100 pts. binder.  The mica is pref. natural phlogopite natural muscovite or synthetic mica.  The MgO is pref. electrofused, sintered or baked MgO.  The binder pref. consists of 20-60, esp. 30-50 pts. boric acid, 5-30, esp. 10-25 pts. boric anhydride; and 30-60 esp. 35-50 pts. ZnO.  The calcined body is pref. moulded at 170-180 deg.C, 150-200Kg/cm2.
Patent KR-850000001-B1 (KR)
Title: Apparatus for manufacturing artificial soil products
Inventor: LEE JON-YONG
IPC: A01G1/00
Filed: 1983-01-21
Granted: 1985-02-08
Abstract: The apparatus for manufg. artificial soil is comprised of a material- transfering screw box (2), a die (7) which has discharge openings (5) , a rotating pulley which has two cutters (7'), a conveyer belt (11), a sawdust dropper (12), an inclined sieve (16) which is vibrated by eccentric shaft (15), piano wires (17), a supporting frame (18), and an amassing box (21). The thickness of product is changed by exchanging a die having the different diam. of the discharge openings.
Patent KR-920007918-B1 (KR)
Title: Recording and playback apparatus of television signal
Inventor: SCHOLZ WERNER
IPC: H04N9/81
Filed: 1984-03-26
Granted: 1992-09-19
Abstract: 1. A device for recording and playing back a television signal which does not contain any line synchronising pulses during the image sweep characterized in that together with the television signal a PCM signal is recorded, the bit clock of which is coupled the line frequency, and that during play back the regenerated bit clock serves as the clock signal for recreating the line synchronising pulses (H1, H2) during the image sweep.
Patent KR-860001217-B1 (KR)
Title: Process for preparing -l-aspartyl-l-phenylalanineester
Inventor: CHOE YONG-HWAN
IPC: C12P21/00
Filed: 1984-11-07
Granted: 1986-08-27
Abstract: α-L-Aspartyl-L-phenylalanine esters(I) were prepd. from aspartic acid derivs. and phenyla anine esters by using microbial protease. Thus, 0.5 mole N-fluorenyl methyl formyl aspartic acid and 0.55 mole phenylalanine ester were dissolved in 2 l of 20% dioxane and adjusted with Tris-boric salt buffer soln. to pH6.4. 0.2 mg Protease from Bacillus colistinus was added into reaction mixt. and reacted at room temp. for 24hr. to give N-fluorenylmethylformylaspartylphenylalanine methyl ester. The resulting esters were reduced on 5% Pd/c catalyst to give 78% (I). (I) is used as artificial sweetner.
Patent KR-920007018-B1 (KR)
Inventor: COTTRINGER THOMAS E
IPC: C01F7/442
Filed: 1985-01-16
Granted: 1992-08-24
Abstract: 내용 없음.
Patent KR-890004455-B1 (KR)
Title: Thin film tr and the manufacturing method
Inventor: TSUGADA TOSIHISA
IPC: H01L29/73
Filed: 1985-03-29
Granted: 1989-11-04
Abstract: An amorphous silicon thin film transistor having an emitter, a control electrode, and a collector, the control electrode having a conductive layer formed by an interfacial reaction between amorphous silicon and metal, is characterized in that the conductive layers of the control electrode has at least a part on which no excess unreacted metal exists.
Patent KR-860002173-B1 (KR)
Title: Weft flat knitting machine
Inventor: OUYOUL HOSE ABURIL
IPC: D04B23/00
Filed: 1985-04-10
Granted: 1986-12-22
Abstract: This machine improves the separation of the weft from the knitting needle. Stopping apparatuses (6,7) are welded on a long bar(8) which is fixed on the bed(1,2) by a screw(9). The stopping apparatus(6) of the front bed(1) helps the separation o the stitch from the needle when the rear needle(4) of the rear bed(2) acts and vise versa. When the needle projects, the weft separates from the needle edge and opens the barrette of the needle. This smooth separation of the weft prevents the drop of a stitch.
Patent KR-930009755-B1 (KR)
Inventor: WATANABE NOBUHISA
IPC: G06F9/22
Filed: 1985-12-04
Granted: 1993-10-09
Abstract: 내용 없음.
Patent KR-930011889-B1 (KR)
Inventor: TAGUCHI YOSHINORI
IPC: G06F3/033
Filed: 1985-12-11
Granted: 1993-12-22
Abstract: 내용 없음.
Patent KR-890003463-B1 (KR)
Title: Method and apparatus involving electromagnetic energy heating
Inventor: KLAILA WILLIAM J
IPC: C10G32/02
Filed: 1985-04-19
Granted: 1989-09-21
Abstract: There are disclosed methods and apparatus for increasing the fluidity of hydrocarbon fluids, by applying to those fluids electromagentic energy in the frequency range of from about 300 megahertz to about 300 gigahertz.
Patent KR-880001357-B1 (KR)
Title: Pump
Inventor: KIM CHON-KYONG
IPC: F04C21/00
Filed: 1986-03-07
Granted: 1988-07-28
Abstract: A pair of pan-shaped plantes are supported by a connection bar at each end in a plane chamber which is formed with a radial groove from the center of side wall of circular rotor.  The two sides of left and right of casing are a sloped for adhering closely to plantes.  The section width of pump chamber was expanded or contracted by rotating the plant and the difference of volume capacity of pump chamber is able to maintain the pump action.
Patent KR-940005902-B1 (KR)
Inventor: GOSIZADE JOSEF
IPC: A23L27/10
Filed: 1986-04-30
Granted: 1994-06-24
Abstract: 내용 없음.
Patent KR-890005018-B1 (KR)
Title: Water proofing cloth of moisture transpiration
Inventor: LEE YONG-JUN
IPC: D06M15/564
Filed: 1986-11-06
Granted: 1989-12-06
Abstract: The water-proof fabric having lots of micropores is manufd. by (a) an adhesive layer on a surface of fabrics with the mixing soln. of polyurethane resin, acrylic resin, inorganic substance such as silicagel, foaming agent, polyisocyanate and organic solvent, (b) forming a microporous layer on the adhesive layer with polyurethane resin, inorganic substance, surfactant, waterrepellent agent, polyisocyanate and organic solvent, and (c) forming a surface layer on the microporous layer with polyurethane resin, paraffin wax, inorganic substance, fluoro polymer (I; R1= H, lower alkyl; R2= C2-21 Perfluoro alkyl; n=10-200).
Patent KR-940009969-B1 (KR)
Inventor: HAKAMADA KUNIO
IPC: H04N5/45
Filed: 1986-12-23
Granted: 1994-10-19
Abstract: 내용 없음.
Patent KR-920007636-B1 (KR)
Inventor: PAINE JOHN C
IPC: G07C5/00
Filed: 1984-11-15
Granted: 1992-09-09
Abstract: 내용 없음.
Patent KR-960002565-B1 (KR)
Inventor: AOYAMA TAKASHI
IPC: F25B15/00
Filed: 1987-01-16
Granted: 1996-02-22
Abstract: 내용 없음.
Patent KR-900000247-B1 (KR)
Title: Measuring instrument of thermometer
Inventor: KIM JONG-SHIN
IPC: G01K7/02
Filed: 1987-03-11
Granted: 1990-01-24
Abstract: A temperature compensation leading wire and temperature measurement selection SW(SW1-SWn) wires from a thermocouple connector (65) are connected to a temperature indicator (TI).  Cold junction thermocouples (A1-An) and a copper wire (61) are connected to a reference junction box (RJ) in which the temperature is uniform.  The electrical error occuring at the junctions are to be eliminated by making the e.m.f. indicated by the TI according to the selection of the SW(SW1-SWn) to be equal to the e.m.f. generating at the thermocouples.
Patent KR-900006647-B1 (KR)
Title: Continuous conveyor apparatus
Inventor: SHIBATA KATSUAKI
IPC: B65G17/12
Filed: 1987-09-12
Granted: 1990-09-15
Abstract: The conveyor has a coaxial wheel arrangement (5-8) with a pair of inner wheels and a coaxial pair of outer wheels. A tandem wheel unit (3,4) has a pair of inner wheels (3b), and a horizontal pair of outer wheels at distance. The conveyor also has load containers. There are four chains (1), moving about the coaxial and the tandem wheel units. The containers are fastened to the chains via connection units. The wheel units have a grooved wheel, with a circumferential groove to accommodate a vertical link of the chain.
Patent KR-910004008-B1 (KR)
Inventor: NAKAISHI MASAFUMI
IPC: G03F1/00
Filed: 1987-09-15
Granted: 1991-06-20
Abstract: 내용 없음.
Patent KR-910002172-B1 (KR)
Inventor: KAWANO HUSAO
IPC: C04B35/04
Filed: 1987-11-11
Granted: 1991-04-06
Abstract: 내용 없음.
Patent KR-960000858-B1 (KR)
Inventor: GERALD SUGERMAN
IPC: C08J5/12
Filed: 1987-11-14
Granted: 1996-01-13
Abstract: 내용 없음.
Patent KR-960000434-B1 (KR)
Title: Eryhromycin a derivatives and process of method for the same
Inventor: MORIMOTO SHIGEO
IPC: C07H17/08
Filed: 1987-12-15
Granted: 1996-01-06
Abstract: Erythromycin A derivativ es represented by the general formula <CHEM> wherein R<1> is a group of the formula R<7>CH2- (wherein R<7> is a hydrogen group or a lower alkyl group) or a group of the formula R<8>O- (wherein R<8> is a lower alkyl group), R<2> is R<8>, a cycloalkyl group, a phenyl group or an aralkyl group, or R<2> and R7 together form an alkylene group, R<3> is a hydrogen atom, a lower alkyl group, a phenyl group or an aralkyl group, or R<3> and R<7> together form an alkylene group, or R<2> and R<3> together form an alkylene group, R<4> is a lower alkyl group, R<5> is a substituted silyl group, and R<6> is a hydrogen atom or R5, are useful as intermediates for the synthesis of antibacterial agents.
Patent KR-910006008-B1 (KR)
Title: Furnace for vacuum heat treatment
Inventor: BYUN SANG-KYO
IPC: C21D1/00
Filed: 1988-01-25
Granted: 1991-08-09
Abstract: A furnace for heat treatment under vacuum consists of chamber separated by heat shielded plate (4) at center position (10);  one side (3) can be heated and the other side (2) can be cooled  down, water reservoir (5) sited on chamber, piston rod (7)  operated  by oil pressed cylinder (6) contacting with the connection part (4a), and fan (9) agitating nitrogen gas fed by tube. Because it has two separated chamber in one closed space and can be heated and cooled down by nitrogen gas, successively,  it  has  advantages  of  easy operation, promoting work efficiency and quality.
Patent KR-910002300-B1 (KR)
Title: The method analyzing ladder diagram colume in programmable logic controller
Inventor: LEE JONG-KUN
IPC: G05B19/05
Filed: 1988-02-22
Granted: 1991-04-11
Abstract: The method represents the ladder diagram in graphic  mode  by analyzing it to the row and  column  so  that  the  edit  and  the supervising functions are strengthened.  The  method  comprises  a first process for designating the address of the OR memory area in a user's program region to choose a  network  corresponding  to  a certain row and column, a second process for reading an  operating coil in the address designated  in  the  first  process,  a  third process for analyzing the OR component by analyzing the each  rows of the first column and for storing the analyzed OR  component,  a fourth process for continuing the third process  up  to  the  last column, and a fifth process for quitting  the  analysis  when  the last column is analyzed.
Patent KR-910001119-B1 (KR)
Inventor: SOGAWA KENJI
IPC: B25J9/16
Filed: 1988-04-02
Granted: 1991-02-23
Abstract: 내용 없음.
Patent KR-960012997-B1 (KR)
Title: Magnetic thin film for magnetic head core
Inventor: LIM HONG-KI
IPC: G11B5/133
Filed: 1988-05-06
Granted: 1996-09-25
Abstract: This invention relates to a thin film provided to increase the electric and magnetic quality of a head core, for example effective magnetic permeability, magnetic flux density, hardness and so on. The magnetic film comprises iron, silicon, gallium, palladium and has the formula FexSiyGamPdn wherein x is 60-80 wt %, y is 5-20 wt %, m is 3-20 wt % and n is 1-20 wt %.
Patent KR-960016053-B1 (KR)
Inventor: GOFFI ITALO
IPC: B44C1/17
Filed: 1988-06-18
Granted: 1996-11-27
Abstract: 없음.
Patent KR-960014996-B1 (KR)
Title: Transdermal drug composition with dual permeation enhancers
Inventor: SANDERS HAROLD F
IPC: A61K31/44
Filed: 1988-08-03
Granted: 1996-10-23
Abstract: A dosage form that coadministers a drug and two percutaneous absorption enhancers to a defined area of the skin is described. The dosage form comprises a body that contains supplies of drug and enhancers and has a basal surface that contacts the area of skin and transmits the drug and enhancers to the area for absorption thereby.
Patent KR-920009538-B1 (KR)
Title: Polyester resin composition
Inventor: OKADA TSUNEYOSHI
IPC: C08L67/00
Filed: 1988-08-09
Granted: 1992-10-19
Abstract: A polyester composition suitable for injection molding comprises 75 to 99 percent by weight of a polyalkylene terephthalate composed mainly of ethylene terephthalate units and 1 to 25 percent by weight of a polyester capable of melt-processing and forming the anisotropic phase in the molten state.
Patent KR-960016046-B1 (KR)
Inventor: BULMAN MELVIN JOHN
IPC: F42B/
Filed: 1988-11-26
Granted: 1996-11-25
Abstract: 내용없음
Patent KR-960005621-B1 (KR)
Inventor: WOZNICKI EDWARD J
IPC: A23L1/00
Filed: 1987-06-19
Granted: 1996-04-30
Abstract: 내용 없음.
Patent KR-920000023-B1 (KR)
Inventor: ISHII MITOSHI
IPC: B30B1/10
Filed: 1987-12-25
Granted: 1992-01-06
Abstract: 내용 없음.
Patent KR-0143417-B1 (KR)
Inventor: STEWART ROGER G
IPC: G09G3/36
Filed: 1989-02-01
Granted: 1998-07-15
Abstract: 저 이동도 재료로 재조된 매트릭스 표시 장치(10)는 표시 소자(12)에 데이터 신호를 인가하는 집적된 정류 회로를 구비한다. 정류 회로는 제 1 래치 소자(20)에 결합된 디멀티플렉싱 회로(19)를 포함한다. 이들 래치 소자(20)는 전송 게이트(21)를 통해 제 2 래치 소자(22)에 결합되며, 제 2 래치 소자의 출력 단자는 열 버퍼에 결합된다. 디멀티플렉싱 회로와 제 1 래치 회로의 결합은 대역폭을 증대시키기 위해 전력 손실로 동작되며, 이로써, 전류 회로의 전체의 스위칭 시간을 짧게 한다.
Patent KR-940010533-B1 (KR)
Inventor: CLIPS JORGE D
IPC: E05C17/00
Filed: 1989-03-29
Granted: 1994-10-24
Abstract: 내용 없음.
Patent KR-910008862-B1 (KR)
Title: Heat resistant sheet and its vessel
Inventor: NEDZU SIGERU
IPC: B32B5/18
Filed: 1989-06-19
Granted: 1991-10-24
Abstract: A heat-resistant composite sheet is composed as the main constituents, either of a foamed polystyrene sheet and a polybutylene terephthalate resin film, or of a foamed polystyrene sheet, a polystyrene resin film and a polybutylene terephthalate resin film, wherein the polybutylene terephthalate resin film layer is laminated to form both or one of the outer layers. The composite sheet can be formed into a container with excellent heat resistant properties.
Patent KR-970006493-B1 (KR)
Inventor: NISHIMURA GUNIO
IPC: A01N33/04
Filed: 1989-07-21
Granted: 1997-04-28
Abstract: 내용없음.
Patent KR-910009983-B1 (KR)
Inventor: SHIMA SHIZUO
IPC: C23C22/00
Filed: 1989-09-25
Granted: 1991-12-09
Abstract: 내용 없음.
Patent KR-930003867-B1 (KR)
Title: 9,10-dihydroxy-9-oxa-phospopenantren-10-oxide derivative and preparation thereof
Inventor: KIM HO-HYON
IPC: C09K21/04
Filed: 1989-09-26
Granted: 1993-05-14
Abstract: 9,10-Dihydro-9-oxa-10-phospho penanthrene derivs. of  formula (I) useful as a flame retardant  are  new.  In  (I),  Z=O;  A=C1-3 alkyl; R1 and R2 each = halogen, S or O-containing C2-19  aryl  or alkyl; R3= phenyl or C6H5O-; X= 1-100; Y=-OH or -O-. Also  claimed is the prepn. of (I) which comprises a reflux reaction of  a  diol deriv. of formula (II) with  a  phosphonic  dichloride  deriv.  of formula (III) in a  nonpolar  solvent  under  an  inert  gas  flow (150-170 deg.C). The cpds. (I) are useful as phosphorus-containing flame retardants.