baber/WOPTO huggingface dataset:
Patent JP-H07205344-A (JP)
Title: Taking-out method of sheet from corrugated cardboard caster
Inventor: NAGAMATSU JUNICHI
IPC: B31B50/76
Filed: 1994-01-07
Abstract: PURPOSE:To perform work stably in addition to prevention of taking-out of two sheets of corrugated boards at a time or defective taking-out from being performed and production efficiency can be improved. CONSTITUTION:In a lower corrugated cardboard taking-out type corrugated cardboard magazine, after the first corrugated cardboard is sucked by a sub- vacuum cup 5, an air layer 20 is formed between the corrugated cardboard sheets 1 by pulling out a little distance, for example, of about 10-20mm, during a period until the sheet 1 is sucked by a main vacuum cup 15 from that time and the corrugated cardboard sheet 1 is allowed to hold at a fixed angle by the sub-vacuum cup 5 or a sheet angle holding stopper.
Patent JP-H09255368-A (JP)
Title: Glass for building
Inventor: FUJISAWA AKIRA
IPC: C03C17/245
Filed: 1997-01-07
Abstract: PROBLEM TO BE SOLVED: To improve transmittance and reflectance for visible rays, resistance of a coating film and reflectance for electromagnetic waves by forming a specified oxide coating film on a glass substrate. SOLUTION: A mixture liquid prepared by mixing a Sn source material, a Sb source material and a Ti source material is sprayed on a glass substrate 3 at high temp. which is preliminarily washed and dried. Thus, a coating film 2 of an oxide containing 10 to 97.9wt.% Sn oxide (calculated as a metal), 2 to 50wt.% Sb oxide (as metal) and 0.1 to 75wt.% Ti oxide (as metal) and having >=10<5> Ω/unit sq. surface resistance and 10 to 200nm thickness is formed.
Patent JP-H02180075-A (JP)
Title: Semiconductor device
Inventor: FUJISAWA AKIRA
IPC: H01L29/78
Filed: 1989-01-05
Abstract: PURPOSE:To suppress an increase in the size of an element and to perform high breakdown strength of a semiconductor device by forming a first semiconductor region to be offset on the surface of a groove formed on a substrate. CONSTITUTION:At least drain region of source, drain is formed of a recess not directly under a gate, a second conductivity type low concentration first semiconductor region 6 formed on the surface of the recess and a high concentration second semiconductor region 7 in contact with the semiconductor region 6. The first semiconductor region 6 is offset for controlling the breakdown strength of a transistor. If it is necessary to increase the length of offset, the effective length of the offset can be increased by increasing the depth of the groove. Accordingly, the breakdown strength of an element can be enhanced without altering the width of the element. Thus, the breakdown strength of the transistor can be improved without increasing the occupying area of the element.
Patent JP-H09187398-A (JP)
Title: Tissue paper
Inventor: KIMURA TAKASHI
IPC: A47K10/16
Filed: 1996-01-08
Abstract: PROBLEM TO BE SOLVED: To maintain various effects of fragrance for a long period by impregnation of perfume precursor to provide fragrance controlled releasing performance and persistence. SOLUTION: As fragrance precursor, any that is decomposed by hydrolase to generate fragrance components is applicable, so glycoside of known perfume, glyceride, peptide derivative, amino acid derivative, phosphoric acid derivative, or the like can be used. One sort of such perfume precursor may be impregnated, or plurality may be blended. As the glycoside, that comprising alcoholic perfume, phenolic perfume, monosaccharide, oligosaccharide, and polysaccharide is applicable. Though usage quantity of the perfume precursor differs by the sort of applied perfume, it is set to be 0.01-20wt.% to tissue paper. At the timing when the tissue paper has absorbed water content, microorganism acts for the first time, when the perfume precursor makes hydrolysis to emit fragrance. As an enzyme, α-amylase or the like is used.
Patent JP-H04251353-A (JP)
Title: Security protection system for information processing system
Inventor: YAMAGAMI JUN
IPC: G06F21/62
Filed: 1991-01-09
Abstract: PURPOSE:To set privacy levels at every operator and operators group in addition to the privacy levels set at every position. CONSTITUTION:A privacy level information storing section 3 stores privacy level information. An information input displaying section 1 inputs data for making an access request to the information to be subject to security protection and displays the secret information when the access is permitted. An information control section 2 reads out the privacy level information from the section 3 and discriminates the presence/absence of an access right against the information by collating the information with the above-mentioned data when the data are inputted. When the section 2 discriminates that the access to the information must be permitted, the section reads out the secret information from a secret information storing section 4 and displays the information on a displaying section 1.
Patent JP-H07205564-A (JP)
Title: Thermal mimeographing base paper and manufacture thereof
Inventor: KAWAZU YUKIO
IPC: B32B27/36
Filed: 1994-01-10
Abstract: PURPOSE:To improve vividness of images and prevent generation of offset by a method wherein a porous support body made of a thermoplastic resin fiber having predetermined aperture face integration ratio and aperture average diameter is layered on a thermoplastic resin film. CONSTITUTION:A porous support body consisting of a thermoplastic resin fiber such as a polyester and having 5-80% of aperture face integration ratio and 5-100mum of aperture average diameter is layered on a thermoplastic resin film such as the polyester so as to form a thermal mimeographing base paper. In the thermoplastic resin fiber, a flame retarder, a heat stabilizer, an antioxidant, and an ultraviolet absorbent can be mixed. When the aperture face integration ratio is 5% or lower, ink permeability is low. When it is 80% or higher, ink retentive property lowers. When the average diameter is 5mum or less, the ink permeability is low, and the ink retentive property lowers when the average diameter is 100mum or more.
Patent JP-S62228285-A (JP)
Inventor: GUUEN GURABOUSUKII KURIBI
IPC: C12N15/00
Filed: 1987-01-06
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent PH-20896-A (PH)
Title: Pyrazolopyridines, pharmaceutical composition containing same and method of use thereof
Inventor: GIORGIO WINTERS
IPC: C07D471/04
Filed: 1983-12-20
Abstract: The present invention is directed to new 4,7-dihydro-pyrazolo[3,4-b]pyridines. The compounds possess Ca2+-antagonist, antihypertensive, vasodilating and antiangina activity. A process for producing them as well as pharmaceutical compositions containing them are also described.
Patent UY-31746-A (UY)
Title: Un sistema intrauterino
Inventor: HANNU NIKANDER
IPC: A61F6/00
Filed: 2009-03-31
Abstract: La presente invención se refiere a nuevos sistemas intrauterinos y a métodos para fabricar tales sistemas. Un sistema intrauterino de acuerdo con la invención comprende un depósito y un marco continuo, cerrado y flexible.
Patent UY-32271-A (UY)
Title: Cartucho, un dispensador de medicamentos que contiene el cartucho, así como también usos del cartucho y del dispensador de medicamentos
Inventor: SABINE LEIFELD
IPC: A61J1/03
Filed: 2009-11-26
Abstract: Para el almacenamiento seguro y la ingestión sencilla y segura de comprimidos (T) por un usuario se crean un cartucho (900) que se puede introducir en un dispensador de medicamentos (1) para porciones de medicamentos sólidos (T) y que está configurado con un depósito de almacenamiento para el alojamiento de la porciones de medicamentos así como también un dispensador de medicamentos (1) para ese cartucho.  De acuerdo con la invención el cartucho comprende un seguro de transporte para evitar el movimiento de las porciones de medicamentos durante el almacenamiento y el transporte de cartucho.
Patent UY-38270-A (UY)
Title: Compuestos
Inventor: HELEN RACHEL LAGIAKOS
IPC: C07D417/12
Filed: 2019-06-20
Abstract: Un compuesto de fórmula (I), o una sal farmacéutica del mismo
Patent YU-20397-A (YU)
Inventor: MARKO DRVAR
Filed: 1997-05-20
Abstract: Držač forme ženskih cipela i sandala se ubacuje u prednji deo cipele odnosno sandale poprečnim savijanjem na dole leptira (1) i uzdužnim savijanjem na dole produžetka (2) održavajući tako formu prednjeg dela unutrašnjosti cipele odnosno sandale. Zadnji deo (10) ima funkciju zadnjeg oslonca šipke (4) dok je prednji oslonac šipke (4) njena sama čvrsta veza sa leptirom (1).
Patent YU-30890-A (YU)
Inventor: ZARKO KIJAMETOVIC
Filed: 1990-02-16
Abstract: Čamac-prtljažnik predstavlja konstrukciono rešenje čamca, zahvaljujući kome se čamac ove konstrukcije može po potrebi preobratiti u prtljažnik za prevoz stvari i obrnuto. Čamac je konstruisan iz dva posebna dela od tvrde plastike (1) i (2), od kojih prednji deo (1), nakon pretvaranja čamca, služi kao donji deo prtljažnika, dok zadnji deo (2) funkcioniše kao poklopac prtljažnika odnosno gornji deo prtljažnika, zahvaljujući zglobnoj vezi (7).Pretvaranje čamca u prtljažnik ostvaruje se sklapanjem prednjeg i zadnjeg dela (1) i (2), pomoću zglobne veze (7), a pretvaranje prtljažnika u čamac ostvaruje se rasklapanjem, zatim, učvršćivanjem u zglobnoj vezi (7) ovih rasklopljenih delova, kako bi se dobilo kompaktno korito čamca, i najzad, upumpavanjem vazduha u pneumatsku komoru (3).
Patent YU-47297-A (YU)
Inventor: ANDREJ BREZNIK
IPC: A61H15/00
Filed: 1997-12-02
Abstract: Masažni aparat sa vertikalno ekscentričnim kuglicama ima suštinu u okruglom držaču, koji je pričvršćen na vrhu diska sa samostalno zaskočnim ovjesima na kojima su vertikalno ekscentrične kuglice, sa okretanjem oko vlastite ose i ekscentrično oko ovjesa. Masažni aparat omogućava jednostavno pomeranje po svim delovima tela i to u sve smerove i time i u smeru kruženja. Masažni aparat sa vertikalno ekscentričnim kuglicama po inovaciji je sastavljen tako da je valjak (2e) držača (2) umetnut u unutrašnji valjak (1d) diska (1). Nizak valjak (2e) držača (2) je umetnut u okrugli prsten (1c) diska (1). U unutrašnjem delu nastavka (11) sa četiri pera (1m) i sa malim klinovima (1m') je umetnut čep (4f) ovjesa (4) koji je uglavljen u četiri pera (1i') diska (1). U sredinu nastavka (1j) sa četiri pera (1i) i malim klinovima (1i') uguran je čep (4f) ovjesa (4) čiji rub (4f) uhvati male klinove (1i'). Na taj način su kuglice (3) jednostavno i pouzdano smaozaskočno uglavljene. Kuglice (3) mogu biti jednostavno izvučene.
Patent YU-52998-A (YU)
Title: Atomizing device
Inventor: TERENCE DUNNE STEPHEN
IPC: B05B1/34
Filed: 1991-03-21
Abstract: Invention refers to a device for dispersion applicable, in paricular, as the inhalator, with measure doses for the exhaustion of the measured amount of liquid, in the form of dispersed jet that produces drops suitable for inhalataion in the lungs by exhausting the measured amount of liquid under pressure. The essence of the invention lies in the new construction of the device where the shrinking tube (51) with liquid product (50) has integrally elongated nozzle (52) placed movable in the cylinder (53). At the end of the nozzle (52) there is an irreversible valve (56), connected to a head (57) for dispersion. Cylinder (53), valve (56) and head (55) are placed in the box (58). Outside the box (58), there are ring shaped ribs (59) for the placement of box (58) in the fist main part (60) of the body, while the upper part of the tube (51) is made with the outer rib (62) for the placement of the tubes (51) situated in the other main part (62) of the body of that device. The application contains variable solution of the invention.
Patent YU-53688-A (YU)
Title: Process for obtaining new pyrazole derivatives
Inventor: BABA M
IPC: A01N43/56
Filed: 1988-03-16
Abstract: 1. A pyrazole derivative having the formula: <CHEM> wherein A is alkyl, alkenyl or alkynyl; B is hydrogen, alkyl, halogen, haloalkyl, alkoxy, alkylthio, alkoxyalkyl, alkylthioalkyl or alkoxycarbonyl; X is alkyl, alkoxy, halogen, nitro, cyano, haloalkyl, alkoxyalkyl, alkylcarbonyl, alkoxycarbonyl, aminocarbonyl substituted by hydrogen or alkyl, haloalkoxy, alkylthio or alkylthioalkyl; Y is -COOR1 (wherein R1 is hydrogen, alkyl, etc.), -COO-L-OR1 (wherein L is alkylene which may be substituted), -COO-L-R2 (wherein R2 is phenyl group which may be substituted), -COO-M (wherein M is 3 to 6-membered alicyclic residue containing not more than 2 sulfur or oxygen atoms), -COO-L-M, -COO-L-O-L-R2, -COO-L-S(O)n-R1, -CON(R3)(R4) (wherein each of R3 and R4 is hydrogen, alkyl etc.), a <CHEM>   <CHEM>  (wherein R5 is alkyl), <CHEM> -CONHSO2CH3, -CONHSO2CF3, -COO-L-N(R3)(R4), -COO-L-CO-R1, -COO-L-CO-O-R1, -COO-L-CN, -COO-L-NO2, -COOSi(R5)3, -COO-N=C(R6)(R7) (wherein each of R6 and R7 is alkyl), <CHEM> -COO-L-O-SO2-R1, -COO-L-O-CO-R1, -COO-L-O-L-O-R1, -COO-L-Si(R5)3, -C(O)S-R1, -C(S)O-R1, -C(S)S-R1, -L-O-R1, -L-O-L-O-R8 (wherein R8 is hydrogen or alkyl), -L-O-M, -L-O-L-M, -L-NR8R9 (wherein R9 is alkyl group), -L-O-CH2Ph, -L-O-L-COOR9, -L-CN, -L-S(O)n-R1, -L-S-L-O-R9, -L-O-COR9, -L-O-SO2R9, -L-COOR8, -C=CHOR8 or -L-O-L-CN; Z is halogen, nitro, alkoxy, trifluoromethyl, cyano or -S(O)nR10 (wherein R10 is alkyl or haloalkyl); V is a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms or an alkoxy group having from 1 to 4 carbon atoms; W is a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms, a haloalkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, an alkoxyalkyl group having from 2 to 6 carbon atoms, an alkoxycarbonyl group having from 2 to 5 carbon atoms, a haloalkoxy group having from 1 to 3 carbon atoms, a nitro group, a cyano group or a -S(O)n-R group (wherein n is as defined above and R is an alkyl group having from 1 to 4 carbon atoms);Q is hydrogen, alkyl, alkenyl, alkynyl, cyanomethyl, -C(O)-R11 (wherein R11 is phenyl group which may be substituted, alkyl, alkoxy or hydroxyl), -S(O)2R11, -P(O)(OR11)2, -L-C(O)-R11, -L-C(O)-N(R12)(R13) (wherein each of R12 and R13 is hydrogen or alkyl), -L-R14 (wherein R14 is phenyl which may be substituted, alkyl, alkoxy or hydroxy), -L-N(R12)(R13), a -L-OR15 (wherein R15 is hydrogen, alkyl or alkenyl), -L-OC(O)R16 (wherein R16 is alkyl or alkoxy), -L-S(O)nR15, -L-SC(O)R12, <CHEM> (wherein each of L1 and L2 is methylene, oxygen or sulfur and R16 is hydrogen or alkyl), and a salt thereof, useful as a herbicide. n
Patent YU-88392-A (YU)
Inventor: VASILJEVIC D
Filed: 1992-10-02
Abstract: BESKONTAKTNI INDUKTIVNI PREKIDAČ ZA DETEKCIJU PRISUSTVA ELEKTRIČNO PROVODNIH PREDMETA, beskontaktni induktivni prekidač, ostvaren pronalaskom, je uredjaj koji novom vezom integrisanih elemenata i bipolarnog tranzistora omogućava preciznu detekciju položaja provodnog predmeta sa malim brojem jeftinih komponenata u širokim granicama varijacija napona napajanja, temperature ambijenta i parametara upotrebljenih komponenti. Beskontaktni induktivni prekidač, prema pronalasku, je prikazan na slici svojom električnom šemom. Na šemi uočavamo oscilatorno kolo L-C3 vezano na neinvertorski ulaz operacionog pojačavača OP1, kojem se dozira ubačena energija preko otpornika R7, a uslov oscilovanja se odredjuje i reguliše preko razdelnika napona R5-R6, dok diodni limiter DZ1 i DZ2 fiksira amplitudu oscilacija pri promeni napona napajanja V. Detektor vršne vrednosti (amplitude) oscilacija čini operacioni pojačavač OP2 sa diodom D2, otpornikom R8 i kondenzatorom C4 i njime dobijamo visoki izlazni nivo kada postoje oscilacije. Operacioni pojačavač OP3 radi kao Šmitov komparator poredeći amplitudu oscilacija sa referentnim naponom VR dobijenim preko otpornika R4 i kondenzatora C2 koji takodje sprečavaju generisanje impulsa uključenja beskontaktnog induktivnog prekidača kada se promeni napon napajanja V. Dioda D3 i otpornik R11 obezbedjuju mehanički histerezis prilikom aktiviranja induktivnog prekidača. Simetrično napajanje operacionih pojačavača dobija se preko otpornika R1, R2 i R3 i kondenzatora C1 od jed-nostrukog napajanja naponom +V. Operacioni pojačavač OP4 služi kao invertor i predvidjen je za slučaj realizacije induktivnih prekidača NPN tipa. Sam izlazni prkidački element realizovan je sa bipolarnim tranzistorom bilo PNP ili NPN tipa, koji su polarizovani otpornicima R12 i R13, Zener diodom DZ3, i indikatorskom LED diodom DL. Diode D1 i DZ4 služe za zaštitu kola od obrtanja polariteta napona napajanja i prenapona na kontaktu, respektivno.
Patent AT-A142996-A (AT)
IPC: A44C27/00
Filed: 1996-08-08
Abstract: The present invention concerns a gem holder (1) comprising a seat for form-closed setting of the gem and two flanges connected at both ends to form an eye-shaped recess (3) for holding the gem (3). In order to manufacture the jewel more easily, it is suggested that the gem resting in the two opposing recess halves (4) of the one single-piece flanges (2) be clamped in the eye-shaped recess through elastic flange pretensioning.
Patent AT-A178798-A (AT)
IPC: H04R25/00
Filed: 1998-10-23
Abstract: In an implantable sound receptor for hearing aids, the sound sensor is designed as an optical sensor (5) and arranged within the ear at a distance from the surface of a sound transmission part (3) capable of being excited to acoustic vibrations.
Patent BE-898358-A (BE)
Title: Structure de serrage sans oreille.
IPC: F16L33/035
Filed: 1983-12-02
Abstract: Structure de serrage utilisée,en particulier,lorsque des condition d'espace n'autorisent aucune partie saillante. Pour pouvoir serrer la bande autour d'un objet à fixer,on prévoit des bossages emboutis et formés par déformation à froid dans les parties intérieure et extérieure d'une bande et s'étendant généralement dans le sens circonférentiel de telle sorte que chaque bossage embouti reste solidaire au moins sur ses deux cotés,les surfaces d'engagement d'outil pouvant résister à d'importantes forces de serrage dans le sens circonférentiel de façon à pouvoir serrer fortement la structure de serrage.
Patent BE-903598-A (BE)
Title: Procede de separation des composes sulfures gazeux et du dioxyde de soufre des gaz de fumee d'un four.
Inventor: HAMALA S
IPC: F23J15/00
Filed: 1985-11-06
Abstract: Procédé de séparation du dioxyde de soufre des gaz de fumée d'un four, dans lequel en plus d'un combustible contenant du soufre (4) et d'un gaz porteur d'oxygène (5), on introduit dans le four (1) de l'hydroxyde de calcium ou de magnésium pulvérulent (6) en excès par rapport au gaz de dioxyde de soufre formé dans la chambre de combustion, et on pulvérisé séparément de l'eau (9) ou de la vapeur d'eau dans les gaz de fumée porteurs d'oxyde de calcium ou d'oxyde de magnésium (8) dans un réacteur (2) séparé de la chambre de combustion, de l'hydroxyde pulvérulent pouvant etre amené directement dans les gaz de fumée dans le four (1).
Patent BE-905458-A (BE)
Title: Board game with layer of edible material - has material pre-cut into pieces that are removed by players to uncover design
IPC: A63F9/06
Filed: 1986-09-19
Abstract: The game uses a plastics covered cardboard box with a design marked in it. The design is covered by a layer of edible material, e.g. sweets, that is pre-cut into pieces. The pieces are removed by the players to uncover the design. - Squares at the top have numbers marked in them to show the order in which the players play. The players must guess what the picture is and the answer is in a square at the bottom. The player that guesses correctly receives the rest of the sweets.
Patent BE-905672-A (BE)
IPC: A61K9/00
Filed: 1986-10-28
Abstract: A pharmaceutical presentation is proposed, prepared in small, single-dose vials with vessel stoppers for syrups based on ferrous salts which are usable in therapy, so as to ensure complete preservation of the iron ions in ferrous form, the salts being preserved in solid form until preparation immediately before use for therapeutic application in cases of iron-deficiency anaemia.
Patent BE-767532-A (BE)
Title: Beating up weft picks
Inventor: TITOV D V
IPC: D03D47/26
Filed: 1971-05-24
Abstract: A reed is defined by a stack of spaced toothed discs carried on a common rotating shaft, the discs each having pref. three teeth, extending around a given arc, and increasing in height in the opposite direction to the rotational direction, and corresponding teeth along the stack defining a helical surface. As the discs rotate, the first two teeth move the weft pick progressively towards the fabric face, and the third tooth beats the weft pick up.
Patent BE-773214-A (BE)
Title: Composite plastic surfacing - of rigid elements mounted on flexible sheet eg of pvc
IPC: E04F13/08
Filed: 1971-09-28
Abstract: Plastic compsn. is applicable to a resistant surface. The product may be used in place of tiling and can be prefabricated in large sheets with great regularity of finish. It can be adapted to curved surfaces. The flexible impervious support and the rigid elements may be of synthetic material, preferably PVC. The two may be bonded together by welding to the base and joining the tiles with PVC paste. Welding may be assisted by applying a volatile solvent for the PVC.
Patent BE-774718-A (BE)
Title: (co) polystyrene moulding surface treatment - before electroless plating, using aq org solvent emulsion, then chromic acid
IPC: C08J7/02
Filed: 1971-10-29
Abstract: Polystyrene-type resin mouldings are surface treated with aq. emulsion contg. surfactant and 0.2-30 wt.% solvent, such as aromatic, chlorinated or cycloaliphatic hydrocarbon, ketone or ester, then with H2SO4/CrO3 soln. Treatment improves capacity for electroless plating, metal/resin bond having considerably improved peel strength when treatment with emulsion is used. Treatment is suitable for general purpose and high impact polystyrene, acrylonitrile/styrene copolymer and ABS copolymer.
Patent BE-776023-A (BE)
Title: White pigment - with resistance to fire and corrosion consisting of a phosphate of silicon,titanium or zirconium
IPC: C01B25/37
Filed: 1971-11-30
Abstract: White pigment consists of a phosphate of formula (I) contg. at least 0.1% of a water soluble cpd. M'O2. xY. (0.1 is approx. 1.5 + mx/2) P2O5 (I) M2On/2 (II) (where M' is Si, Ti and Zr; Y is a nitrogen base or the oxide of formula (II); M2 is an alkali (ne earth) metal, Al, Pb or Zn; n is the valence of M2; x is a 1-6; and m is 1 when Y is a nitrogen base, or is n when Y is (II). The pigment is cheap and combines a high degree of whiteness with an excellent fire and corrosion resistance. Used in flame-retarding paints and rust-resisting paints. A soln. of TiCl4 and a soln. of orthophosphoric acid were supplied to a reactor to form a white gel. of Ti phosphate, the molar ratio of TiO2:P2O5 being 1:1. The pdt. was calcined for 1 hr. at 400 degrees C, and ground in a ball mill. The pigment consisted essentially of TiP2O7.
Patent BE-776189-A (BE)
Title: 1,2,34-tetrahydro-quinaloyl 2-methyl-6-ethylanilides - useful as local anaesthetics
IPC: C07D215/48
Filed: 1971-12-03
Abstract: Novel title cpds. of formula: (where R = H, 1-6C alkyl or 5-6C cycloalkyl) and their acid addn. salts, are prepd. by reaction of a) tetrahydroquinaldic acid or its active deriv. with 2-methyl-6-ethyl aniline or its salts b) tetrahydroquinaldic acid with 2-methyl-6-ethyl-phenyl-isocyanate, c) tetrahydroquinaldic acid esters and 2-methyl-6-ethyl-aniline magnesium halide Grignard cpd., or d) quinaldic acid or its active derivs. with 2-methyl-6-ethyl aniline followed by hydrogenation at 80-100 degrees C. and 2-5 atm. in the presence of platinum oxide.
Patent CA-1104820-A (CA)
Inventor: SAITO TORANOSUKE
IPC: C07C65/105
Filed: 1972-06-22
Granted: 1981-07-14
Abstract: PRESSURE SENSITIVE RECORDING PAPERS          Abstract of the Disclosure A dyestuff acceptor comprising polyvalent metal salts of aromatic carboxylic acid containing at least 12 carbon atoms and having a hydroxyl radical at the ortho-position to a carboxyl radical thereof forms stable and rich color by rapidly reacting with a dyestuff and constitutes a novel unit of pressure sensitive recording papers in combination with the dyestuff.