baber/WOPTO huggingface dataset:
Patent FR-2606115-A1 (FR)
Title: Butterfly valve particularly for a motor vehicle, and its application to a carburetter
Inventor: LAINE GABRIEL
IPC: F16K27/02
Filed: 1986-10-31
Abstract: The butterfly valve for an inlet duct of an internal combustion engine is essentially made up of a body 10 traversed by the duct 11 and of a regulating member 20 composed of a flap 201 which can be oriented in the duct, of a spindle 202 integral with the flap to make it tilt, and mounting and control means 210, 220 associated with the spindle. This valve is such that its body is made of two shells 12A, 12B joined along a joining plane AB which passes through the spindle 202, and such that its regulating member 20 constitutes a removable single-piece assembly. Application to carburetters.
Patent FR-2607234-A1 (FR)
Title: Echangeur de chaleur a passes methodiques
Inventor: CRETEUR JEAN-PIERRE
IPC: F28D1/053
Filed: 1986-11-20
Abstract: ECHANGEUR COMPORTANT AU MOINS UNE PLAQUE COLLECTRICE RECOUVERTE PAR UNE BOITE A EAU MUNIE INTERIEUREMENT D'AU MOINS UNE CLOISON LONGITUDINALE PRENANT APPUI DE FACON ETANCHE SUR LA PLAQUE COLLECTRICE POUR DELIMITER AVEC DEUX RANGEES DE TUBES UN ECHANGEUR A AU MOINS DEUX PASSES METHODIQUES, L'ETANCHEITE ETANT ASSUREE PAR UNE PARTIE EN ELASTOMERE SERREE ENTRE LE BORD LIBRE DE LA CLOISON ET LA PLAQUE COLLECTRICE, CARACTERISE EN CE QUE LA PLAQUE COLLECTRICE PRESENTE UNE RAINURE LONGITUDINALE 16 PARTIELLEMENT REMPLIE PAR UNE NERVURE SOUPLE 17 PRESENTANT ELLE-MEME UNE RAINURE 17A POUR RECEVOIR LE BORD LIBRE DE LA CLOISON 7 ET EN CE QUE, DE PLUS, DES PROTUBERANCES 18 SONT FORMEES POUR AUGMENTER LA RIGIDITE LONGITUDINALE DE LADITE CLOISON 7.
Patent FR-2609271-A1 (FR)
Title: Rigging for a wind-propelled machine
IPC: B63H9/06
Filed: 1987-01-05
Abstract: The invention relates to rigging for a wind-propelled machine. In such a rigging, a sail assembly 5 with an aircraft wing shape comprises at least one element 13 which is associated, preferably by sliding, with one or more longitudinal members 6 mounted so as to tilt about an axis 8 on one or more masts themselves mounted so as to pivot about an axis 4 perpendicular to an upper surface 1 of the machine. Use particularly on single-hull, catamaran and trimaran sailing boats, drifters, sand yachts and sailboards.
Patent FR-2610143-A1 (FR)
Title: Monopulse square array antenna with electronic scanning
Inventor: BEGUIN DANIEL
IPC: H01Q9/04
Filed: 1987-01-23
Abstract: The invention relates to a monopulse square array antenna with electronic scanning. This antenna comprises N radiating dipoles laid out regularly in a plane and a supply network in microstrip lines with N outputs S1 to S16 in order to supply these N dipoles. This supply network is subdivided into four identical quarters I to IV. According to the invention, each quarter is derived from the adjacent quarters by a 90 DEG rotation, in the plane of the array, about the centre P of the antenna. The perturbations due to the external couplings between the various parts of the antenna are thus compensated. The invention applies to printed-circuit antennas.
Patent FR-2593733-A1 (FR)
Title: Dispositif d'affutage de couteaux
Inventor: LINDEN OLAVI
IPC: B24B3/36
Filed: 1987-01-30
Abstract: L'invention concerne un dispositif d'affûtage de couteaux comprenant un corps et un élément d'affûtage 10 monté rotatif dans le corps. Cet élément 10 est muni de deux surfaces de meulage 13, 14 de forme tronconique tournées l'une vers l'autre. Ce dispositif permet d'obtenir une arête avec des surfaces latérales convexes, du fait que l'angle de cône alpha des surfaces de meulage 13, 14 varie dans la direction périphérique de l'élément de meulage 10 et que la portion 20 ayant un angle de cône alpha 1 plus petit a une surface plus rugueuse que la portion 21 ayant un angle de cône alpha 2 plus grand. (CF DESSIN DANS BOPI)
Patent FR-2610687-A1 (FR)
Title: Soufflet d'etancheite pour joints de transmission de vehicules automobiles
Inventor: BOTTI JEAN
IPC: F16D3/84
Filed: 1987-02-10
Abstract: SOUFFLET D'ETANCHEITE POUR JOINTS DE TRANSMISSION DE VEHICULE DU TYPE COMPORTANT UN CORPS A PAROI ONDULEE D'EPAISSEUR DETERMINEE ET DEUX COLLERETTES D'EXTREMITE DESTINEES A ETRE EMMANCHEES RESPECTIVEMENT SUR LES PARTIES MENANTE ET MENEE DU JOINT DONT L'UNE EST CONSTITUEE PAR UN ARBRE, CARACTERISE PAR LE FAIT QUE LA SURFACE INTERIEURE 11 DE LA COLLERETTE 8 D'EXTREMITE, TOURNEE VERS LA SURFACE EXTERIEURE DE L'ARBRE 5, PRESENTE AU MOINS UNE RAINURE 12 DE REMPLISSAGE DE GRAISSE ET D'EVACUATION D'AIR DU SOUFFLET ET QUE LADITE RAINURE DEBOUCHE DE PART ET D'AUTRE D'UNE NERVURE 10 ANNULAIRE PORTEE PAR LA SURFACE INTERIEURE DE LA COLLERETTE SUSCEPTIBLE DE VENIR EN CONTACT AXIAL DE RETENUE AVEC LES FLANCS D'UNE GORGE 9 SITUEE A LA PERIPHERIE DE L'ARBRE 5.
Patent FR-2611204-A1 (FR)
Title: Composes intermediaires utiles pour la preparation d'herbicides
Inventor: MULHAUSER MICHEL
IPC: C07F9/38
Filed: 1987-02-19
Abstract: L'INVENTION CONCERNE DES COMPOSES DE FORMULE : (CF DESSIN DANS BOPI) DANS LAQUELLE R EST UN GROUPEMENT HYDROGENOLYSABLE, R ET R SONT DES GROUPEMENTS ALKYLE, X EST UN ANION HSO, C1, RSO L'INVENTION CONCERNE EGALEMENT UN PROCEDE DE PREPARATION DES COMPOSES DE FORMULE I PAR HYDROLYSE DES COMPOSES DE FORMULE II (CF DESSIN DANS BOPI) DANS LAQUELLE R ET R SONT DES GROUPEMENTS ALKYLE LIES A L'OXYGENE PAR UN CARBONE SECONDAIRE AU MOYEN D'ACIDE SULFURIQUE OU CHLORHYDRIQUE. L'INVENTION CONCERNE EGALEMENT L'UTILISATION DES COMPOSES DE FORMULE I POUR LA PREPARATION D'HERBICIDE PAR HYDROGENOLYSE DES COMPOSES DE FORMULE I.
Patent FR-2595748-A1 (FR)
Title: Device for a door having a safety leaf
Inventor: EICHHOLZER MARTIN
IPC: E06B3/88
Filed: 1987-03-12
Abstract: a) Device for a door having a safety leaf. b) The door device consists of a safety leaf having multiple locking and a reinforced fixed frame. The safety leaf has a metal frame 1, reinforcing sections 2 and covering metal sheets 3, 4 fastened to the latter. On the two edges 5, 6 of the leaf are placed additional sections 7, 8 which extend over the entire length of the door. These additional sections 7, 8 are fastened to the metallic frame 1 on the edges 5, 6 by fastening means 21, 22 and are not accessible when the door is closed. One of these additional sections 7 carries the locking device 9 with the sliding bolt 8 and the other additional section 18 carries the hinge plate 10. Covering panels 15, 16 are attached on the two faces of the leaf. The locking elements 12, 13 pass through the metal frame 1. c) The invention relates to a metal safety door providing a high safety factor.
Patent FR-2613223-A1 (FR)
Inventor: DUPINAY PIERRE
IPC: A61K9/16
Filed: 1987-04-03
Abstract: The invention relates to a process for preparing a pharmaceutical dosage form which takes the form of water-soluble grains, and a dosage form, in particular, based on a dry extract of Ginkgo biloba. In the process according to the invention, the following successive operations are carried out: - moistening and/or solubilisation of the active principle by means of an alcoholic or aqueous-alcoholic solvent; - addition of a surfactant and, where appropriate, a binder to the moistened or solubilised active principle; - homogenisation of the suspension or solution thereby obtained, or solubilisation; - mixing of the suspension or solution with a pharmaceutically acceptable water-soluble vehicle which is compatible with the active principle; - granulation of the mixture and evaporation of the solvent by drying.
Patent FR-2597013-A1 (FR)
Title: Plate-bending press
Inventor: TAKAHASHI HIDEAKI
IPC: B21D5/02
Filed: 1987-04-10
Abstract: The invention relates to bending machines. <??>It relates to a machine in which all the clearances between an eccentric shaft 15 and guide pillars 9R, 9L, and between these pillars and an upper bending tool 11 are eliminated so that the upper bending tool can be very accurately adjusted with respect to the lower tool 3 carried by a base. <??>Application to plate-bending presses.
Patent FR-2600816-A1 (FR)
Title: Programmer
Inventor: JABS KLAUS
IPC: H01H43/10
Filed: 1987-05-12
Abstract: Programmer characterised in that a runner 10 is mounted on the slide 8 so as to be able to move counter to the force of a spring 9, in that the slide 8 drives the runner 10 under the effect of the energising of the electromagnet 5, so that this runner halts the programming drum, and in that a stop 24 is arranged on a counting wheel 21 controlled by the reverser drum 1, it being possible to move the runner 10 with the stop 24, after a certain number of control notches, so that it allows the switching of the switching drum.
Patent FR-2617405-A1 (FR)
Title: Folding racquet for ball games, particularly tennis
Inventor: JEANROT PATRICK
IPC: A63B49/02
Filed: 1987-07-02
Abstract: The invention relates to a folding racquet for ball games, particularly tennis, composed of a head frame 14 including two lateral arms 18, 20 extending towards each other, a shaft 22 received between the said lateral arms and continuing as far as the base 15 of the frame, an articulation member 32 of offset axis, including a central portion 32c connected to outer portions 32e via intermediate portions 32i, which is arranged between the lateral arms and the shaft, and removable fastening means 26 between the shaft and the frame. The shaft 22 includes an elongate aperture 34 receiving the said articulation member 32 with limited longitudinal clearance and lateral housings 36, 38 intended to receive the ends of the lateral arms 18, 20 of the frame and the intermediate portions 32i of the articulation member 32.
Patent FR-2619940-A1 (FR)
Title: Tree-structure circuit with partitionable pipeline architecture
Inventor: FAUDEMAY PASCAL
IPC: G06F13/364
Filed: 1987-08-26
Abstract: The invention relates to the field of tree-structure circuits in digital electronics. The object of the invention is to supply a tree-structure circuit whose structure allows a significant acceleration with respect to existing circuits. This object is achieved with the aid of a tree-structure circuit broken down into independent sub-trees 41, 42, each represented by a subassembly of adjacent nodes, each of the said sub-trees 41, 42 operating in pipeline mode with respect to the adjacent sub-trees 42, 41 in the said tree-structure circuit 30. The invention finds an advantageous application in multi-component associative memories and the like.
Patent FR-2644746-A1 (FR)
Title: Device allowing the assembly and quick separation of the two parts of a motor vehicle
IPC: B60K20/04
Filed: 1987-10-16
Abstract: Device for separating motor vehicles into two parts. The invention relates to an enhancement and to an improvement in motor vehicles, allowing the two parts to be separated and assembled quickly, in less than fifteen minutes. It consists of a chassis which is reinforced at eight points, bodywork which is reinforced at eight points 21 to 28, a system for joining the two parts, composed of a socket on the chassis and a plug on the bodywork, of a pedal block, of a gearbox block, of an electric socket block, of a steering system block, of a fuel tank block system, of a throttle cable block, of a system for locking the two parts together, a handbrake block system, and a jacking-up system block. This device is particularly intended for the motor industry, for road safety, safety at work, and for a better state of the car market.
Patent FR-2621759-A1 (FR)
Title: Procede et dispositif pour la detection automatique d'emissions radioelectriques de signaux
Inventor: BENSADOU JEAN-CLAUDE
IPC: H03J7/32
Filed: 1987-10-09
Abstract: Le procédé consiste à fixer automatiquement un seuil de détection des signaux radioélectriques. Ce seuil est fixé en fonction d'une estimation en temps réel de la valeur moyenne de la puissance de bruit atmosphérique. L'estimation de la valeur du bruit s'effectue en prélevant 5 des échantillons de bruit et/ou de signal utile appliqués à l'entrée du récepteur, en discriminant 6 les échantillons de bruit des échantillons de signal utile et en calculant 7 une valeur moyenne des échantillons de bruit sur un nombre déterminé N d'échantillons. Le seuil de détection est ensuite déterminé par la probabilité pour que l'amplitude instantanée du bruit présent à un instant donné à l'entrée du récepteur ne dépasse pas d'un nombre déterminé de décibels la valeur moyenne des échantillons de bruit calculés. Application : récepteurs de radiosurveillance.
Patent FR-2607952-A1 (FR)
Title: Cassette de bande magnetique
Inventor: KARIBE HARUYUKI
IPC: G11B23/087
Filed: 1987-12-03
Abstract: L'INVENTION CONCERNE LES CASSETTES DE BANDES MAGNETIQUES. ELLE SE RAPPORTE A UNE CASSETTE DE BANDE MAGNETIQUE DANS LAQUELLE UN DISPOSITIF INDICATEUR EST FORME PAR TROIS TRONCONS 56, 57, 58 DU FOND, SOLIDAIRES DE CELUI-CI ET DELIMITES PAR DECOUPES 54, 55. CHAQUE TRONCON PEUT ETRE SEPARE DU FOND, PAR CASSURE, ET PERMET ALORS LE PASSAGE D'UNE TIGE DE DETECTION 60, 61, 62 DE L'APPAREIL DE LECTURE OU D'ENREGISTREMENT. APPLICATION AUX CASSETTES POUR MAGNETOSCOPES.
Patent FR-2612873-A1 (FR)
Title: Structure close flottante de service en mer
Inventor: OLIVEIRA FLORENCIO DE FILHO
IPC: B63B35/44
Filed: 1987-12-22
Abstract: CETTE STRUCTURE EST CONSTITUEE PAR UNE PLATE-FORME METALLIQUE QUI SE PRESENTE SOUS LA FORME D'UN CARRE INTERIEUREMENT OUVERT 10 QUI FLOTTE SUR L'OCEAN, QUI EST ANCREE AU FOND DE LA MER PAR UN ENSEMBLE DE CABLES ATTACHES A UN ENSEMBLE DE PIEUX ET QUI RETIENT EN SON INTERIEUR UNE PARTIE DE LA MER QUI COMMUNIQUE AVEC L'OCEAN EXTERIEUR PAR UNE OUVERTURE 11 DES PAROIS DE CETTE PLATE-FORME METALLIQUE 10 D'UNE MANIERE TELLE QUE, DANS CETTE PARTIE CONFINEE DE LA MER, LES BATEAUX DE SERVICE SERVANT AU TRAVAIL EN MERPEUVENT ETRE AMARRES ETANT DONNE QUE LA MER EST CALME PAR RAPPORT A LA FORTE MER SE TROUVANT A L'EXTERIEUR DE CETTE STRUCTURE 10, UNE CONTRIBUTION A CETTE POSSIBILITE D'OBTENIR UNE MASSE D'EAU CONFINEE CALME ETANT OFFERTE PAR LA RESISTANCE PRESENTEE A L'IMPACT DES VAGUES PAR LES PAROIS LATERALES 16, 19 DE LA STRUCTURE 10 QUI SONT IMMERGEES JUSQU'A UNE PROFONDEUR D'EAU D-3 DE PLUS DE 30 METRES, AINSI QUE PAR LE FAIT QUE LES FACES POSSEDENT DES ELEMENTS 20 DE DEVIATION DES EAUX ET DES CHAMBRES SPECIALES 21 PERMETTANT D'AMORTIR CET IMPACT DES VAGUES.
Patent WO-8806430-A1 (WO)
Title: Intraocular lens
Inventor: LECOQ CLAIRE
IPC: A61F2/16
Filed: 1988-03-03
Abstract: An opthalmological surgical device comprises a supporting element integral with the sclerotic, and a supported element consisting of an intraocular lens attached to the supporting element after being introduced separately into the eye. The lens attached in this manner is in the aqueous humour, and is not in contact with the intraocular structures, in particular the uvea. In the case of a supporting system with four points of sclerotic penetration and in the simplest embodiment, the supporting element is U-shaped with an intrasclerotic (22) horizontal arm (13) and two vertical arms (11) the end (14) of which is attached to the sclerotic on the opposite side to the horizontal arm. Viewed from the pupil (5), a lens (19) of the required strength is attached to this kind of rigid intraocular framework, the lower part of the lens being rigidly attached (18) to one of the two vertical arms, and the upper part (20) being sutured to the other arm. The device according to the invention is designed to correct errors of refraction, in particular aphacia and myopia.
Patent FR-2625751-A1 (FR)
Title: Biological medium specially adapted to the field of analyses of mycoplasmas in human pathology
Inventor: ESCARGUEL CLAUDE
IPC: C12Q1/04
Filed: 1988-01-07
Abstract: This medium is composed of a first so-called reactive phase comprising: known elements necessary for the culture of mycoplasmas of the type including cholesterol, yeast extracts, foal's serum; elements for visualising the metabolism of the mycoplasmas of the type including urea, arginine or glucose; an indicator of change in colour (phenol red) and at least one antibiotic; and of a second phase comprising a dilution medium which also serves as vehicle for the sample to be analysed, this medium essentially consisting of a known broth specific for mycoplasmas, supplemented with 1 g/1000 of agar and capable of also containing an antibiotic.
Patent FR-2611150-A1 (FR)
Title: Composition de moulage d'un noyau en ceramique, procede de fabrication d'un tel noyau et noyau en ceramique ainsi obtenu
Inventor: ROTH HILTON ANDREW
IPC: C04B35/80
Filed: 1988-02-24
Abstract: LA PRESENTE INVENTION CONCERNE UNE COMPOSITION DE MOULAGE DE NOYAU QUI EST DESTINEE A LA PRODUCTION D'UN NOYAU EN CERAMIQUE CONVENANT POUR UNE UTILISATION DANS UN PROCEDE DE MOULAGE A LA CIRE PERDUE. CETTE COMPOSITION EST CARACTERISEE EN CE QU'ELLE COMPREND UN MELANGE CERAMIQUE COMPORTANT DES PARTICULES CERAMIQUES DISPERSEES DANS UN LIANT, CE LIANT ETANT AJOUTE EN UNE QUANTITE SUFFISANTE POUR MOULER ET MAINTENIR UNE FORME MOULEE AVANT LA CUISSON, DES FIBRES STABLES A HAUTE TEMPERATURE REPARTIES DANS LE MELANGE CERAMIQUE, CES FIBRES ETANT AJOUTEES EN UNE QUANTITE SUFFISANTE POUR REDUIRE LES CONTRAINTES DE RETRAIT PENDANT LA FABRICATION DU NOYAU, ET UN MATERIAU CERAMIQUE SOUS FORME DE TRES FINES PARTICULES QUI EST AJOUTE EN UNE QUANTITE SUFFISANTE POUR PERMETTRE D'EFFECTUER LE FRITTAGE A BASSE TEMPERATURE ET POUR INTERAGIR AVEC LES FIBRES AFIN DE REDUIRE LES CONTRAINTES DE RETRAIT ET DE CONTROLER LA DEVITRIFICATION.
Patent FR-2619865-A1 (FR)
Title: Plateau de distribution pour petite pompe
Inventor: JONES DAVID T
IPC: F04B39/10
Filed: 1988-07-07
Abstract: L'invention concerne un plateau perfectionné de distribution destiné à être utilisé avec une pompe à fluide à piston à mouvement alternatif. Une pièce moulée élastique 33 de distribution en caoutchouc est mise en place sur une plaque 30 présentant des orifices d'entrée et de sortie 31, 32, de façon à former un joint étanche entre la plaque et une culasse 28, à former un clapet de retenue d'entrée 52 et à former un clapet de retenue de sortie 49. Domaine d'application : compresseurs d'air à faible capacité et autres pompes à fluide à piston à mouvement alternatif.
Patent FR-2635409-A1 (FR)
Title: Memoire de type eprom a haute densite d'integration possedant un facteur de couplage eleve, et son procede de fabrication
Inventor: BERGEMONT ALBERT
IPC: H01L27/115
Filed: 1988-08-11
Abstract: La présente invention concerne une mémoire non volatile électriquement programmable, composée d'un réseau de lignes de mot LM2 s'étendant suivant des rangées, reliant des grilles de commande de transistors à grille flottante 23, et de lignes de bit LB1, LB2 s'étendant suivant des colonnes, reliant des drains des transistors à grille flottante 23. Une zone conductrice 35, de dimensions supérieures à celles de la grille flottante 23 des transistors suivant un plan horizontal, est reliée à la grille flottante 23 de chaque transistor de la mémoire, tout en étant située en regard de la ligne de mot LM2 correspondante dont elle est séparée par une couche d'isolement 28.
Patent FR-2636082-A1 (FR)
Title: Footbridge, in particular for pedestrians
IPC: E01D19/04
Filed: 1988-09-06
Abstract: The subject of the invention is a footbridge, comprising at least one continuous crosspiece, abutments for the ends of the crosspiece provided on the edges of a zone to be crossed by the footbridge, and possibly support pillars located in the zone between the abutments, characterised in that the crosspiece 7-8 is made of a composite material and comprises a sandwich bearing structure, formed by a bottom consisting of a glass fibre reinforcement embedded in a cured resin matrix and a walkway surface, of the same structure as the bottom, delimiting with the latter a space reserved for a flexible filling material, the bottom being shaped to connect to the structure under its side edges and being extended by extensions forming, with the walkway surface, a defined angle in order to constitute guard rails for protecting the crosspiece, on either side of the latter.
Patent FR-2636539-A1 (FR)
Title: Game, leisure and sports ball
IPC: A63B65/10
Filed: 1988-09-20
Abstract: The present invention consists of a novel ball making it possible to play outdoors and indoors. In order to facilitate the description of the shape of the ball, although it is manufactured in a single piece by moulding and not by the assembly of several parts, we are able to describe it in detail and to state that it is characterised by two truncated cones a and a1 adhering via their base to the two sides of a wheel b whose periphery is a bead which looks like a tyre c having a plane surface outside the latter; it also has two grooves g and g1, one on each side of the ball. A particular feature of the ball is that it converts its horizontal position when thrown into a vertical position on catching and vice versa, the movement being caused by the shape of the ball and not being the product of the thrower's initiative.
Patent FR-2638512-A1 (FR)
Title: Humidifier for an air conditioning system
IPC: B64C13/00
Filed: 1988-10-27
Abstract: It comprises, in the trunking 1 for the circulation of hot air to be humidified, an ultrasound water atomizer 2. The outlet from the water atomizer 2 emits particles of water in the immediate vicinity of the top of an axisymmetric surface 12 which is open towards downstream with a top having substantially the shape of a spherical cap. The centre of the said top is pierced for the passage of the water atomizer 2. The axisymmetric surface 12 extends as far as the wall of the trunking 1 and is pierced with holes 14 through which the hot air passes. The axisymmetric surface 12 consists of a spherical cap pierced at its centre and extended by a cone frustum.
Patent FR-2638187-A1 (FR)
Title: Construction block of compressed earth
IPC: B28B3/02
Filed: 1988-10-24
Abstract: The invention relates to a construction block of compressed earth. It is characterised in that, in order to form each of the so-called exposed faces 5, 6 of the block, at least two so-called protecting plates 13 are anchored opposite each other in the said block. The plates on the one hand each extend substantially over the entire face in question and, on the other hand, are each made of a material resistant to erosion.
Patent FR-2640270-A1 (FR)
Title: Procede de preparation de mercaptides d'antimoine
Inventor: FUJITA KOHTAROH
IPC: C07C313/00
Filed: 1988-12-09
Abstract: L'invention concerne un procédé de préparation de mercaptides d'antimoine, dans lequel on fait réagir du trioxyde d'antimoine avec un mercaptan organique de formule R**1-SH ou R**2-OCO-(CH2 )n -SH (dans lesquelles R**1 représente un groupe alkyle, alcényle, aryle, aralkyle, cycloalkyle ou hétérocyclique, comportant de 1 à 18 atomes de carbone et comportant éventuellement une liaison sulfure ou une liaison éther ou un substituant hydroxyle ou un substituant carboxyle, R**2 représente un atome d'hydrogène ou un groupe alkyle, alcényle, aryle, aralkyle, cycloalkyle ou hétérocyclique, comportant de 1 à 18 atomes de carbone et comportant éventuellement une liaison sulfure ou une liaison éther ou un substituant hydroxyle ou un substituant carboxyle, et n vaut de 1 à 3), en présence d'un acide carboxylique aliphatique inférieur. Ce procédé permet d'obtenir, avec des rendements élevés, des mercaptides d'antimoine Sb(-SR**1)3 ou Sb(-S-(CH2 )n -COOR**2)3 présentant une pureté élevée. Ces produits présentent une excellente stabilité au cours du temps et une excellente action en tant qu'agents de passivation pour des catalyseurs de craquage catalytique d'hydrocarbures.