baber/WOPTO huggingface dataset:
Patent FR-2606744-A1 (FR)
Title: Goods handling pallet with detachable raising blocks
Inventor: SABIS GUY JEAN
IPC: B65D19/00
Filed: 1986-11-14
Abstract: The elements 2 which form the frame of the pallet are provided in a tubular shape in such a way as to form housings for the raising blocks 6 once the latter are removed from the ferrules 32 provided for this purpose on the assembly brackets 3.
Patent FR-2609466-A1 (FR)
Title: New 4,4-dimethyltetrahydro-2-pyrone derivatives, process for their preparation and their application to the synthesis of pyrethroid products
Inventor: TESSIER JEAN
IPC: C07D307/93
Filed: 1987-01-09
Abstract: The subject of the invention is, by way of a new chemical product, under its various d, l and dl forms, the compound of formula I: and the mixtures of these various forms. The product of formula I is useful in the preparation of pyrethroid products.
Patent WO-8801030-A1 (WO)
Inventor: RICHAUD MICHEL JEAN-PIERRE
IPC: G09F19/02
Filed: 1987-08-05
Abstract: Dispositif d'entraînement d'objets mobiles suivant des trajectoires relatives alternativement de même sens (parallèles) puis de sens opposés et application aux objets et enseignes animées. L'invention concerne un mécanisme constitué par des roues dentées E1, E2, E3 etc. munies de biellettes B activant des tiges leviers D1, D2 etc. dont les extrémités animent des objets O1, O2, O3 (écrans, filtres, sujets, essuie-glaces etc...) dont la trajectoire sera soit parallèle soit opposée de façon cyclique. Alternances provoquées par leur entraînement ou leur non entraînement par rapport à une roue dentée de base R1, entraînement lié à la présence ou non de dents sur des roues dentées superposées R2, R3 leur faisant face. Ce dispositif est particulièrement destiné à l'animation d'enseignes lumineuses ou non suivant la présence de source lumineuse sur l'objet mobile et la nature des objets en mouvement.
Patent FR-2601139-A1 (FR)
Title: Dispositif d'aimantation pour le controle magnetosc opique de pieces
Inventor: NOVIKOV ALEXEI EVSEEVICH
IPC: G01N27/85
Filed: 1987-02-10
Abstract: L'INVENTION CONCERNE UN DISPOSITIF D'AIMANTATION POUR LE CONTROLE MAGNETOSCOPIQUE DE PIECES. SELON L'INVENTION, IL COMPREND UN ELECTRO-AIMANT PRINCIPAL 1, DES ELECTRO-AIMANTS AUXILIAIRES 2 ET 7 PLACES DANS L'ENTREFER DE L'ELECTRO-AIMANT 1 AVEC UN MOYEN 8 FAISANT VARIER LA DISTANCE ENTRE LES ELECTRO-AIMANTS 2 ET 7, UN BLOC D'ALIMENTATION 11 ET UN GENERATEUR D'IMPULSIONS A FREQUENCE VARIABLE 13, LES ELECTRO-AIMANTS AUXILIAIRES 2 ET 7 ETANT DISPOSES AVEC UN DECALAGE PAR RAPPORT A LA ZONE CENTRALE DE L'ENTREFER DE L'ELECTRO-AIMANT 1. L'INVENTION S'APPLIQUE NOTAMMENT A LA METALLURGIE.
Patent FR-2602027-A1 (FR)
Title: Guide de chaine
Inventor: FLAIG HEINZ
IPC: B66D3/26
Filed: 1987-05-13
Abstract: LA PRESENTE INVENTION CONCERNE UN GUIDE POUR CHAINE, NOTAMMENT D'UN ORGANE DE TRACTION A CHAINE, GUIDEE SUR UNE ROUE DENTEE ENTRAINEE, LA CHAINE ETANT GUIDEE DANS DES RAINURES ENTRE DEUX MOITIES DE GUIDE. SELON L'INVENTION, LES MOITIES DE GUIDE, CONSTITUANT DES COQUILLES DE GUIDAGE 5, SONT FORMEES A PARTIR DE PIECES EMBOUTIES, QUI, SOUS L'ARBRE D'ENTRAINEMENT 2, PRESENTENT DES EMPREINTES 6 EN CROIX CORRESPONDANTES POUR LA CHAINE 4, ET, POUR LES MAILLONS VERTICAUX DE CELLE-CI, PRESENTENT DES BECS DE GUIDAGE 9 JUSQU'AU-DESSUS DE L'ARBRE D'ENTRAINEMENT 2, QUI, SAUF UNE FENTE D'INTRODUCTION 11, SONT ADAPTES A LA COURBE DE LA CHAINE 4. L'INVENTION S'APPLIQUE A UN ORGANE DE TRACTION A CHAINE.
Patent FR-2618250-A1 (FR)
Title: Adjustment switch for a printed circuit board
Inventor: CORRE NOEL LE
IPC: H01H19/58
Filed: 1987-07-16
Abstract: A switch 10 with indexing for printed circuit board 14 includes a rotary body 12 for driving a contact blade 30 and a centring member 16 having lugs 38 intended to snap-fit into conjugate holes 40 distributed over the board 14 around conductive tracks 32. The rotational guiding of the body 12 is afforded by the passage of the control button 18 into an orifice 36 in the centring member 16 and by the positioning of a swivel 20 in an orifice 22 in the board 14. The indexing is carried out by means of notches 26 for switching, which cooperate with two leaf springs 46, 48.
Patent FR-2619629-A1 (FR)
Title: Method for on-line, real-time determination of the compositions of the supply and of the distillation yields obtained during the distillation of crude oils and their mixtures by near-infrared spectrophotometric analysis of the supply
Inventor: MARTENS ANDRE
IPC: G01N21/35
Filed: 1987-08-18
Abstract: Method for on-line, real-time determination of the compositions of the supply and of the distillation yields obtained during the distillation of crude oils in a distillation unit, by means of a spectrophotometer by measuring the absorbence in the spectral band from 12500 to 3840 cm<-1> (0.8 to 2.6 microns) and by selecting within this band a certain number of frequencies in order to establish statistical correlations with the desired characteristics and by directly calculating the values of the compositions and yields desired by applying a correlative relationship with the n values of absorbence measured.
Patent FR-2620630-A1 (FR)
Title: Butee avant pour la fixation d'une chaussure sur un ski
Inventor: RULLIER PIERRE
IPC: A63C9/085
Filed: 1987-09-18
Abstract: La présente invention concerne une butée avant pour la fixation d'une chaussure sur un ski comprenant un support fixé au ski et sur lequel est montée mobile une mâchoire de retenue de l'avant de la chaussure, des moyens élastiques pour maintenir normalement la mâchoire sur son support dans une position d'enclenchement centrale, et des moyens de liaison entre la mâchoire et son support. Cette butée avant est caractérisée en ce que les moyens de liaison comprennent des moyens 6 pour déplacer vers l'avant la partie supérieure 4a de la mâchoire 4 et des moyens 7 pour déplacer vers l'arrière la partie inférieure 4b de la mâchoire 4, lors du mouvement de la mâchoire 4 dans le sens transversal, afin de provoquer simultanément une ouverture progressive de la mâchoire 4 vers le haut.
Patent FR-2620750-A1 (FR)
Inventor: KISELEV VASILY PETROVICH
IPC: E04H6/04
Filed: 1987-09-23
Abstract: An air-supported construction structure comprises an envelope (1) made of a flexible material and mounted on a base (7), the middle part (2) of which has the form of a cylindrical vault and the end-face parts (3) - the form of a spherical vault. The envelope (1) consists of joint arc-shaped elements (4, 5) provided, at their opposite sides, with flexible pulling means (8). The flexible pulling means (8) of the end-face parts (3) of the envelope (1) are secured, with their ends, to the parts of the base (7) which are located at the opposite sides of the middle part (2) in immediate proximity of the corresponding part (3) and are connected to means (18) for changing their length. The method of mounting the air-supported construction structure provides that once the envelope (1) supported by the pumped air reaches a stable position the deviation of the planes, which pass through the joints of the arc-shaped elements (4), from the vertical position is corrected by shortening the length of the flexible pulling means (8) located at the end-face parts (3) of the envelope (1).
Patent FR-2620950-A1 (FR)
Title: Extraction device for the preparation of standard platelet concentrates
Inventor: BOULANGER PHILIPPE
IPC: A61M1/02
Filed: 1987-09-24
Abstract: Extraction device of the type known per se comprising a press 10 capable of receiving a centrifuged pouch P of platelet-rich plasma, and a clamp system 70 capable of clamping a tubing T connecting the centrifuged pouch P and a transfer pouch. According to the invention the extraction device additionally comprises switch means 80 suitable for changing state when the press chamber 28 reaches a predetermined residual volume and then bringing about the automatic closure of the clamp system 70. The extraction system makes it possible to obtain standard platelet concentrates.
Patent FR-2621011-A1 (FR)
Title: Machine for placing a label on a piece of revolution and cassette which can be used in such a machine
Inventor: MAUREL JEAN-PHILIPPE
IPC: B65C3/02
Filed: 1987-09-30
Abstract: The subject of the present invention is a machine for placing a label on a piece of revolution, for example a tube 60. This is placed in a horizontal position on the frame 12 of the machine. A feed mechanism 14, 32, 36 makes it possible to convey, above the tube 60, a length of adhesive strip 22 substantially equal to the circumference of the tube. An element 62 in the shape of an upturned U, integral with a guillotine, makes it possible to cut the strip 22 and to glue it onto the upper half of the tube 60. A carriage 82 equipped with a flexible blade 98 makes it possible, via a to-and-fro (reciprocal) movement, to glue the two ends of the piece of adhesive strip onto the lower half of the tube 60. Application to the marking of tubes used in aeronautics.
Patent FR-2621917-A1 (FR)
Title: New 6,7,8,9-tetrahydro-1-dibenzofuranol derivatives, process for their preparation and their application as medicaments
Inventor: BOAVENTURA ANNA-MARIA
IPC: C07D307/91
Filed: 1987-10-16
Abstract: The invention relates to the compounds of formula I in which A and B each represent a hydrogen atom or form together a carbon-carbon double bond, m represents an integer which can vary from 0 to 8, n represents an integer which can vary from 1 to 6, and either R1 and R2, which are identical or different, represent a hydrogen atom or an alkyl radical containing from 1 to 8 carbon atoms, or else R1 and R2 together form a ring, which can contain one or a number of other optionally substituted heteroatoms, and to their addition salts with inorganic or organic acids. The products of formula I have anxiolytic properties which justify their use in therapeutics.
Patent FR-2605566-A1 (FR)
Title: Retroviseur de vehicule automobile a boitier pivotant par rapport a un axe horizaontal
IPC: B60R1/04
Filed: 1987-10-20
Abstract: RETROVISEUR DE VEHICULE AUTOMOBILE. AU BOITIER 6 EST ASSOCIEE AU MOINS UNE SURFACE D'APPUI 10, 11 QUI EST INCURVEE DE MANIERE CORRESPONDANTE AU RAYON DE PIVOTEMENT R DETERMINE PAR L'AXE 5. INDUSTRIE AUTOMOBILE.
Patent FR-2622197-A1 (FR)
Title: Polyamides transparents, leur procede de fabrication
Inventor: MAJ PHILIPPE
IPC: C08G69/36
Filed: 1987-10-21
Abstract: Polyamides thermoplastiques transparents de structure constituée des restes de diamine cycloaliphatique, de lactame contenant au moins 7 atomes de carbone, ou de l'aminoacide correspondant, et d'acide téréphtalique ou d'un mélange d'acides téréphtalique et isophtalique contenant plus de 50 % d'acide téréphtalique. Ces polyamides sont préparés par réaction dans une première étape du lactame ou du composé aminoacide avec l'acide téréphtalique ou le mélange d'acide téréphtalique et isophtalique et dans une deuxième étape de l'oligomère diacide obtenu avec la diamine cycloaliphatique.
Patent FR-2622797-A1 (FR)
Title: Composition cosmetique a base de yaourt ou de kefir
Inventor: CONTAMIN JEAN-CLAUDE
IPC: A61K8/25
Filed: 1987-11-05
Abstract: Composition cosmétique sous forme de poudre destinée à être hydratée au moment de l'emploi. Cette poudre contient de 55 à 100 % en poids de yaourt ou de kéfir revivifiable à l'aide d'un soluté liquide, la poudre ou le soluté contenant un récepteur d'acidité. Cette composition permet d'améliorer les propriétés cosmétiques de la peau notamment sa fermeté.
Patent FR-2606667-A1 (FR)
Title: Annular trough mixer for e.g. concrete
Inventor: WAHL WOLFGANG
IPC: B01F7/16
Filed: 1987-11-10
Abstract: An annular trough mixer, e.g. for concrete, is fitted with revolving mixer arms carrying the mixer tools. A coupling unit between the two permits the tools to become displaced at right angles to their direction of motion, if they meet an obstruction such as an oversize block.
Patent FR-2608241-A1 (FR)
Title: Dispositif de commande de serrage de freins d'avions a commande electrique
Inventor: MORRIS RICK
IPC: F16D65/18
Filed: 1987-12-07
Abstract: L'INVENTION CONCERNE UN DISPOSITIF DE COMMANDE DE FREINS D'AVIONS A COMMANDE ELECTRIQUE. CE DISPOSITIF COMPORTE UN MECANISME D'ENTRAINEMENT 60 A GALETS FILETES 66, QUI EST ENTRAINE PAR UN MOTEUR COUPLE ELECTRIQUE 50 PAR L'INTERMEDIAIRE D'UN SYSTEME D'ENTRAINEMENT A PIGNONS 54, 56, 58, LE PIGNON 58 ETANT ASSOCIE A UN ORGANE FORMANT VIS 64 OU A UN ORGANE FORMANT ECROU 62, DE SORTE QUE LA ROTATION DU PIGNON 58 ENTRAINE L'UN OU L'AUTRE DES ORGANES 64, 62 DE MANIERE A L'APPLIQUER AXIALEMENT CONTRE UNE PLAQUE 32 REALISANT LE SERRAGE DU FREIN PAR L'INTERMEDIAIRE D'UNE PILE DE DISQUES 24, EN REPONSE A UN SIGNAL DE COMMANDE ELECTRIQUE ENVOYE AU MOTEUR 50. APPLICATION NOTAMMENT AUX SYSTEMES DE FREINAGE DES ROUES D'AVIONS.
Patent FR-2624117-A1 (FR)
Title: Derives de hydroxy-3 (methoxy-4 phenyl)-2 (methylamino-2 ethyl)-5 dihydro-2,3 5h-benzothiazepine-1,5 one-4, leur preparation et leur application en therapeutique
Inventor: LOCHEAD ALISTAIR
IPC: C07D281/10
Filed: 1987-12-08
Abstract: Composés répondant à la formule générale I : (CF DESSIN DANS BOPI) dans laquelle R1 représente un atome d'hydrogène ou un groupe alcanoyle en C2 -C4 , n représente un nombre de 1 à 4, et R2 représente soit un groupe phényle portant éventuellement de 1 à 3 substituants choisis parmi les atomes d'halogène et les groupes trifluorométhyle, nitro, méthylènedioxy, éthylènedioxy, acétyle, hydroxy, mercapto, alcoxy ou alkylthio en C1 -C4 , benzyloxy, amino, ou acétylamino, soit un groupe naphtyle, soit un groupe thiényle, soit un groupe pyridinyle, ainsi que leurs sels d'addition à des acides acceptables en pharmacologie. Application en thérapeutique.
Patent FR-2625149-A1 (FR)
Title: Novel section forming a clamp for car seals
Inventor: MESNEL GERARD
IPC: B60J10/00
Filed: 1987-12-23
Abstract: The invention relates to a section forming a clamp for a car seal, this section being called upon to cap a projecting element 2 of the bodywork and comprising a longitudinal metal core 4 with a U-shaped cross-section, coated with a plastic material 5 which, on the faces of the U opposite one another, has projecting parts 9, 10 intended to come into contact with the lateral faces of the said projecting element 2 of the bodywork. According to the invention, a projecting part on at least one of the said faces of the U, is made up of a tubular element 10 inside which is housed at least one longitudinal reinforcement member 11 capable of exerting a constant back pressure on the internal face of the wall of the said tubular element 10 which is called upon to come into contact by its outer face with the said projecting element 2 of the bodywork.
Patent FR-2626957-A1 (FR)
Title: Lightweight boom for taking photographs
IPC: F16M11/24
Filed: 1988-02-04
Abstract: The invention relates to a dismantlable lightweight device which is small when dismantled and easy for a single person to transport and use. It consists of a central support 1 connected on either side by pairs of intermediate tubes 4 to a camera support 2 and to a counterweight support 3. The device according to the invention is intended for still or motion picture photography and for amateurs as well as professionals.
Patent FR-2610953-A1 (FR)
Title: Machine a tricoter rectiligne
Inventor: GOLLER ERNST
IPC: D04B15/96
Filed: 1988-02-17
Abstract: MACHINE A TRICOTER RECTILIGNE AVEC UN DISPOSITIF SERVANT A LA MISE EN MARCHE, A L'AJUSTEMENT A LA VITESSE DE TRAVAIL ET A L'ARRET DU MOTEUR DE COMMANDE DU CHARIOT, DONT AU MOINS UNE MANETTE DE COMMANDE MANUELLE, S'ETENDANT SUR LA PLUS GRANDE PARTIE DE LA LONGUEUR DE LA MACHINE, COTE OPERATEUR, EST EN LIAISON MECANIQUE AVEC UN DISPOSITIF EFFECTUANT LA MISE EN MARCHE, L'AJUSTEMENT A LA VITESSE DE TRAVAIL ET L'ARRET DU MOTEUR, CARACTERISEE EN CE QUE LE DISPOSITIF EFFECTUANT LA MISE EN MARCHE, L'AJUSTEMENT A LA VITESSE DE TRAVAIL ET L'ARRET DU MOTEUR 23 COMPREND UN CAPTEUR 13 ELECTRIQUE, AJUSTABLE PROGRESSIVEMENT AU MOYEN DE LA MANETTE DE COMMANDE 12 ET QUE LA SORTIE DU CAPTEUR 13 DONNE LA PROPORTION DE LA VARIATION RELATIVE DE LA VITESSE DE TRAVAIL PREDETERMINEE.
Patent FR-2629327-A1 (FR)
Inventor: FIGINI JEAN-LUC
IPC: A47J27/04
Filed: 1988-03-31
Abstract: Said household appliance for steam-cooking of food has a steam production chamber (1), a cooking chamber (2) linked to the former and means (7) to extract the liquid particles suspended in the steam flow. It can be used as a household appliance for the steam-cooking of one or several individual portions.
Patent FR-2629455-A1 (FR)
Inventor: GADRAS ALAIN
IPC: C07F7/08
Filed: 1988-03-29
Abstract: Fungicidal compounds of formula (II): in which: R denotes - a lower alkyl radical optionally substituted by one or more substituents chosen from halogen atoms, preferably chlorine, fluorine or bromine, a lower alkoxy radical, a radical -Si(CH2)xR1R2R3, x = 0, 1, R1, R2 and R3, which are identical or different, being lower alkyl, lower alkoxy, aryl (especially phenyl) or aralkyl (especially benzyl); - an alkenyl, preferably allylic, radical, optionally substituted as when R denotes alkyl or by a C1-C3 alkyl group; Y = lower haloalkoxy, preferably containing 1 to 3 carbon atoms, advantageously trifluoromethoxy, lower haloalkyl, preferably containing 1 to 3 carbon atoms, advantageously trifluoromethyl, halogen (preferably chlorine or bromine). n = 1, 2, 3, it being possible for Y to be identical or different when n = 2, 3.
Patent FR-2631331-A1 (FR)
Title: Process for manufacturing a lightened material of construction and product for its use
Inventor: ROBERT ALBERT
IPC: C04B28/02
Filed: 1988-05-10
Abstract: Process for manufacturing a lightened material of construction, especially intended for filling, characterised in that it comprises the following stages:   a) a mixture of sand and of expanded polystyrene beads is produced,   b) cement, an adjuvant and water are added to this mixture at the time of use, and c) the product obtained in stage b) is mixed until a fluid homogeneous mixture is obtained. h
Patent FR-2634666-A1 (FR)
Title: Plant for the separation of solid and liquid constituents in a mixture by distillation
Inventor: MARMET RENE
IPC: D06F43/08
Filed: 1988-07-29
Abstract: The plant comprises a cylindrical tube 1 arranged to be driven in rotation about its axis of revolution, a rotary shaft 10 provided with means to be driven in rotation in the same direction as the tube 1 at a higher and variable speed. The shaft 10 extends axially over the whole length of the tube 1 and carries arms 14A, 14B extending radially, supporting devices 17 for scraping the inner wall of the tube 1. The arms 14A, 14B are arranged so as to permit a close contact, while rotating, between the scraping devices 17 and the inner wall of the tube. Near one of its ends the tube 1 comprises a device 21 for recovering solid components and, at the other end, a device 22 enabling vapour to be removed. Tube 1 is provided with heating means 4. The plant is particularly useful for the distillation of dirty solvents employed by the chemical industry.
Patent FR-2636485-A1 (FR)
Title: Single-line telephone call diverter
IPC: H04Q3/00
Filed: 1988-09-13
Abstract: Single-line telephone call diverter for automatically diverting a call from a user of a calling line of a party B to a called line of a party A, towards another line of a party C to which the call from B is to be transferred and whose number has been predetermined by A, characterised in that it comprises a call-managing logic unit, which can bring about, after detecting a call signal from the calling party B, the momentary placing on-hold of party B, the automatic dialling of the number of party C and then the connecting of B and C via the automatic switchboard managing the line of A, by setting up between A, B and C the three-way conversation procedure, and, at the end of the communication, the resetting of the lines to the initial state, these successive actions staggered over time preferably being combined with the sending of pre-recorded messages indicating to the calling party B and to the party C to which the calls have been diverted, the condition of the line and the nature of the call thus transferred.
Patent FR-2638645-A1 (FR)
Title: Disposable one-use syringe
IPC: A61M5/50
Filed: 1988-11-07
Abstract: Disposable one-use syringe which can not be re-employed after use. It comprises, in combination: a) a body 1 made of a semi-rigid plastic material having at its base an annular recess 8 projecting from the said body 1; b) a plunger 3 moved by a rod 2 which is made of a flexible plastic material and whose diameter is slightly greater than that of the body 1 of the syringe, in such a way that, at the end of its travel, it sits in the annular recess 8; c) a movable and removable safety ring 7 which is arranged between the flat surfaces 5 constituting the upper end of the body 1 of the syringe and the flat surfaces 6 consituting the upper end of the rod 2 of the plunger 3. The annular recess 8 formed at the base of the body 1 can be surmounted by a slight annular undercut 9 prohibiting the lifting of the plunger 3 after use.
Patent FR-2642732-A1 (FR)
Title: Tube for dispensing objects one by one
IPC: B65D83/04
Filed: 1989-02-09
Abstract: Tube for dispensing substantially spherical objects, characterised in that, at a first end 2 with a thinned wall of the tube 1, there is provided an oblong dispensing ring 2 of width less than the diameter of the objects to be dispensed and of length greater than this diameter, held in the centre of the tube 1 by four diametrically opposed pairs of support arms 7, 7a; 8, 8a, fins 9 protruding from the internal wall of the tube and extending radially practically up to the oblong ring, the quantity of them being sufficient to prevent the passage of the objects through the openings between the support arms, and marks 12 on the external wall of the tube, these being diametrically opposed on the diameter along which the said ring has its length, at the level of the first end 2 of the tube 1.
Patent FR-2644618-A1 (FR)
Title: Process for decontamination of metal surfaces, especially of constituent parts of a pressurised water nuclear reactor, and decontaminating solutions employed in this process
Inventor: BRUNET SOLANGE
IPC: G21F9/00
Filed: 1989-03-14
Abstract: This process consists in performing at least one decontamination cycle comprising the following stages: a)Bringing the surface to be decontaminated into contact with an oxidising solution containing potassium permanganate and either boric acid or lithia, and b) bringing the surface thus treated into contact with a reducing complexing solution containing ascorbic acid and citric acid and optionally EDTA. Very low percentages of residual contamination with Co-58, Mn-54 and Co-60 can be obtained in 72-80 hours by operating at a temperature of 70 to 95 DEG C, for example 85 DEG C, and with periods of 2 h for each stage.
Patent FR-2645225-A1 (FR)
Title: Insert to be implanted using a thermal or ultrasound method
IPC: F16B35/06
Filed: 1989-04-03
Abstract: The present invention relates to a specific assembly device - insert - made of metal, the fitting of which is to be carried out using a thermal or ultrasound method and this being in any technical plastic materials intended for the manufacture of components or of industrial objects requiring a means for producing an assembly, a link or a connection.
Patent FR-2647108-A1 (FR)
Title: Process for the preparation of aromatic ketones
Inventor: GILBERT LAURENT
IPC: C07C45/54
Filed: 1989-05-19
Abstract: The present invention relates to a process for the preparation of aromatic ketones which consists in bringing together an aromatic derivative and a haloformate in a superacidic medium. These ketones are chemical intermediates which are used in the pharmaceutical or plant protection industry.