baber/WOPTO huggingface dataset:
Patent IT-FI940150-A1 (IT)
Title: Macchina per il prelievo pneumatico delle olive da un impianto con  reti di raccolta e canali di concentrazione delle olive
Inventor: CALZOLARI RINO
IPC: A01D51/00
Filed: 1994-08-02
Abstract: La macchina comprende, in combinazione con una struttura (1) motrice e generatrice di potenza meccanica: un braccio meccanico snodato (18, 22, 26, 28) con attuatori di manovra (68, 70, 72, 74), combinato ad un tubo di aspirazione flessibile (30) e non comprimibile terminante con una bocchetta aspirante (30A); un ciclone (46) per la separazione delle olive trasportate dall'aria aspirata, con griglia di separazione (18); un ventilatore (12); un contenitore (62) di accumulo delle olive con mezzi di scarico; ed un distributore (60) di scarico dal ciclone nel contenitore di accumulo.(Fig. 1).
Patent IT-IS940001-A1 (IT)
Title: Sostegni telo per ombra autoveicoli
Inventor: GRECO ANGELO
Filed: 1994-06-07
Abstract: Il settore ove viene inquadrata l'invenzione è quello dell'accessorio autoveicoli. Risolve il problema del parcheggio dell'auto sotto il sole coprendola in maniera pratica e veloce senza ingombri eccessivi e senza invadere aree adiacenti all'autoveicolo. Non occorre preparazione tecnica per il montaggio e non viene adoperato nessun attrezzo. Non costituisce alcun pericolo per le persone e per le cose. E' costituito da un tubo telescopico collegato ad un tubo sagomato a forma di C.Viene montato con semplici movimenti inserendo il tubo sagomato sulla ruota e facendo leva sul tubo telescopico per contrasto il tutto rimane bloccato sulla ruota. Sfilando il tubo telescopico ad altezza desiderata, alla sua estremità si collega il telo.
Patent IT-MC960020-A1 (IT)
Title: Pendulum with rechargeable spring at each turn with weight in indented centrifugation.
Inventor: SERI RANIERO
Filed: 1996-02-19
Abstract: Unlimited Energy for alternators, engines and pumps. In order to gain the perpetual motion of the wheel 2, it is required pendulum with a pressed spring rechargeable at each turn, then a turning fulcrum (in order to lift the world from its increasing problems as Archimedes was hoping) a pole lever of first type, the centrifugal thrust, that nearly doubles the weight at each turn and the reactive thrust of the curved pole that holds the weight- pendulum. Starting from the zenith, after nearly 180 degrees the weight, pressing on the outer side expanding the spring and pressing it and therefore pulling the longer arm of the lever that has the shorter in traction on the larger circumference of the wheel, push that is especially useful in climbing, or dead time to be climbed even with another weight under the pole, for secondary centrifugation. The inventor Seri Raniero, via Acquapagana 2 Cesi di Macerata- 62038 Italy proposes the production of silent generators and CLAIMS: 1) each self rotating pendulum with centrifugal weight with moveable pole for charge of the spring on a pole lever of first type under pressure of the same circle of wheel. NB. For the consequent and growing mass migrations is needed more authority to the UN, the Vatican, the EU, more discipline and Spirituality, more sociality.
Patent IT-MI942610-A1 (IT)
Title: Cooling ring for blown films with system of automatic setting of the thickness.
Inventor: CASAZZA FRANCESCO
IPC: B29C48/92
Filed: 1994-12-22
Abstract: Cooling ring for blown filming machines including, in addition to the main batch of cooling air (9) of the bubble (10), an independent additional batch (1) of cooling air that flows in a group of radial channels (2) provided in the ring where these radial channels (2) can be closed through a corresponding amount of spools that move in axial direction thanks to linear thermal expansion of respective copper holders.
Patent IT-MI951062-A1 (IT)
Inventor: AZZONI ALFREDO
IPC: C12Q1/32
Filed: 1995-05-24
Abstract: A method is described for the determination of lactic acid in organic materials of alimentary interest that involves reacting, in a buffered aqueous medium, a sample of the said materials, or a solution obtained by extracting them, with an enzyme system comprising L(+) lactate oxidase, D(-) lactate dehydrogenase and horseradish peroxidase and measuring the concentration of any oxygen produced as a result of the oxidation of the lactic acid contained in the said sample with an amperometric electrode that is selective for oxygen. A biosensor that can be used to put the above method into effect is also described. <IMAGE>
Patent IT-MI951144-A1 (IT)
Title: Procedimento per la realizzazione di occhielli in camicie ed altri indumenti
Inventor: ROSATO DOMENICA
IPC: A41D/
Filed: 1995-06-01
Abstract: Procedimento per la realizzazione di occhielli in camicie ed altri indumenti, comprendente le seguenti fasi operative:-	applicare un nastro di stoffa (3) lungo il bordo (4) dell'indumento (1) da dotare di occhielli, mediante una cucitura (5) interrotta nei tratti (6) in cui si vogliono realizzare gli occhielli (10), detta cucitura (5) dividendo longitudinalmente il nastro (3) in due lembi (7, 8);-	ribaltare uno sull'altro i due lembi (7, 8) del nastro (3), unire tra loro i due lembi sovrapposti e disporli rivolti verso i bottoni (2) dell'indumento (1);-	ribaltare all'interno lungo la cucitura (5) il lembo di stoffa (9) compreso tra detta cucitura (5) ed il bordo (4), ed unire detto lembo (9) all'indumento (1).
Patent IT-MI992609-A1 (IT)
Inventor: DOSMO RENATO
IPC: H01H71/08
Filed: 1999-12-16
Abstract: A device for interrupting and protecting a load supply circuit against ground faults, comprising: an interruption unit which has input terminals for connection to a load supply circuit, and at least one fixed contact and one moving contact which are operatively connected to actuation means for opening/closing the power supply circuit; a residual-current protection unit, operatively associated with the interruption unit and comprising a current sensor which is suitable to detect the presence of a residual current, and a control unit which is operatively associated with the sensor and with the actuation means and is suitable to check whether the detected residual current is higher than a preset limit and to cause, in this case, the intervention of the actuation means; the particularity of which resides in the fact that load supply conductors are directly connected to output terminals of the interruption unit and that the current sensor is arranged directly on the conductors.
Patent IT-PD940137-A1 (IT)
Title: Dispositivo di chiusura/apertura particolarmente per contenitori ermetici scatolari
Inventor: BET ENZO
IPC: B65D/
Filed: 1994-07-20
Abstract: Il presente trovato si riferisce ad un dispositivo di chiusura ed apertura particolarmente per contenitori ermetici scatolari il quale si caratterizza per il fatto di comprendere, monolitici, una piastra di base fissata al contenitore scatolare, la quale presenta un foro in corrispondenza della zona di apertura di questo, almeno un tappo di sezione trasversale sostanzialmente corrispondente al summenzionato foro.Il dispositivo di cui sopra comprende inoltre mezzi di articolazione connettenti il tappo e la piastra di base.Ancora il tappo presenta, in corrispondenza della sua estremità libera una punta in materiale plastico o metallico.
Patent IT-RM980293-A1 (IT)
Inventor: TINTI MARIA ORNELLA
IPC: C07C229/22
Filed: 1998-05-06
Abstract: Perfluorinated esters of alkanoyl-L-carnitine of the formula (I):are useful as cationic lipids for the intracellular delivery of pharmacologically active compounds.
Patent IT-TO910750-A1 (IT)
Inventor: FARINAZZO ENZO
IPC: F02C7/047
Filed: 1991-10-03
Abstract: The hollow casing (4) which constitutes the air intake of a turbojet engine has an outlet for the hot air which is used to prevent ice from forming on the front lip of the casing. The outlet is constituted by a plurality of slots (15) which are arranged and shaped in a manner such that they generate a low-pressure jet of hot air which undergoes a high degree of mixing with the external air and is consequently cooled so as not to burn the panels constituting the outer wall of the engine housing immediately downstream of the hot-air outlet. <IMAGE>
Patent IT-TO930933-A1 (IT)
Title: Articolo composito
Inventor: BACINO JOHN E
IPC: B32B5/18
Filed: 1993-12-09
Abstract: Si descrive un articolo composito in politetrafluoroetilene ed un procedimento per la sua produzione. Un articolo in politetrafluoroetilene viene stirato mentre si fa aderire uno strato polimerico termoplastico all'articolo di politetrafluoroetilene, per cui lo strato di polimero termoplastico viene stirato e diventa sottile. L'articolo composito in politetrafluoroetilene espanso può aver la forma di pellicola tubo, barra o filo. L'articolo in politetrafluoroetilene composito espanso, presenta una elevata resistenza al taglio trasversale ed una migliorata resistenza alla penetrazione da parte di liquidi a bassa tensione superficiale.
Patent IT-TO950846-A1 (IT)
Title: Dispositivo di comando di un deragliatore di bicicletta, comprendente una molla antagonista della molla del deragliatore.
Inventor: CAMPAGNOLO VALENTINO
IPC: B62K23/06
Filed: 1995-10-19
Abstract: Un dispositivo di comando del deragliatore di una bicicletta include un rotore (7) per l'avvolgimento di un cavo flessibile di comando del deragliatore, e mezzi elastici (9) interposti fra il rotore (7) e un corpo di sopporto (3) del dispositivo ed atti a contrastare l'azione di richiamo della molla del deragliatore.(Figura 1)
Patent NO-20101749-A1 (NO)
Title: Umbilikal-klammer
Inventor: HALL KENT
IPC: E21B17/10
Filed: 2010-12-14
Abstract: Det er tilveiebrakt en klemme til navlestrengkabel 3 for å koble i det minste en navlestrengkabel 1 langs en rørformet struktur, slik som et stigerør 8. Klemmen 3 innbefatter et forlenget element 3 og i det minste ett festeelement 2. Det forlengede elementet 3 er utstyrt med i det minste ett spor 7 for å huse navlestrengkabelen 1 fast deri. Det forlegende elementet er tilpasset til å bli festet langs nevnte rørformede struktur av i det minste ett nevnte festelement 2, som derved danner en kontinuerlig klemmeanordning for navlestrengkabelen langs den rørformede strukturen. Et verktøy 5 for å sette inn og fjerne navlestrengkabelen er også tilveiebrakt.
Patent NO-20121371-A1 (NO)
Title: Tanksystem for fartøy
Inventor: SANDSTAD ALF REIDAR
IPC: B63B35/44
Filed: 2012-11-19
Abstract: Det beskrives et tanksystem (2) for et skrog (1) i det vesentlige symmetrisk om en senterakse (111), hvor flere primærtanker (21) er anordnet mellom en senterstruktur (11,12) og to eller flere ballasttanker (22), og hvor to nærliggende primærtanker (21) er innbyrdes adskilt av et primærskott (211) som strekker fra senterstrukturen (11,12) og i det vesentlige i radiell retning utover mot en skrogside (13), hvor en sekundærballasttank (22b) er avgrenset mot to nærliggende primærtanker (21) og mot nærliggende primærballasttanker (22a), idet sekundærballasttankene (22b) oppviser en radiell utstrekning større enn en dimensjonerende, maksimal skadeinntrengningsutstrekning
Patent NO-20130062-A1 (NO)
Title: Polymernanokompositt og anvendelse derav
Inventor: JOHNSON MICHAEL H
IPC: C08L101/00
Filed: 2013-01-11
Abstract: En polymernanokompositt omfatter en polymer; og en nanopartikkel derivatisert til å omfatte funksjonelle grupper omfattende karboksy, epoksy, eter, keton, amin, hydroksy, alkoksy, alkyl, aryl, aralkyl, alkaryl, lakton, funksjonaliserte polymereeller oligomere grupper eller en kombinasjon omfattende minst én av de foregående funksjonelle grupper. Variabiliteten i strekkfasthet og prosentforlengelse for polymernanokomposittet er mindre enn variabiliteten av disse egenskaper oppnådd hvor en uderivatisert nanopartikkel er omfattet istedenfor den derivatiserte nanopartikkel.
Patent PE-77299-A1 (PE)
Title: Composiciones limpiadoras liquidas suaves antimicrobianas que se quitan enjuagando
Inventor: BAIER KAYTHLEEN GRIESHOP
IPC: C11D3/20
Filed: 1998-06-04
Abstract: CARACTERIZADA PORQUE COMPRENDE a)DE 0,1% A 5% DE UN ANTIMICROBIANO EN PARTICULAR TRICLOSAN, TRICLOCARBAN, OCTOPIROX, ENTRE OTROS; b)DE 9% A 14% DE UN SURFACTANTE ANIONICO, DONDE 67% SON SURFACTANTES DE CLASE A Y CLASE C, LA RELACION EN LA QUE ESTAN PRESENTES ES DE 4:1 A 1,5:1 Y EL SURFACTANTE ANIONICO TOTAL ES MENOS DE 50% DE SAL DE AMONIO DE CONTRACATION; c)DE 4% A 8% DE UN AGENTE DONANTE PROTONICO DE UN INDICE DE ACTIVIDAD BIOLOGICA Z SUPERIOR A 0,75, ES UN ACIDO ORGANICO; d)UN AGENTE MEJORADOR DE SUAVIDAD COMPRENDE DE 0,1% A 1% DE UN POLIMERO MEJORADOR DE SUAVIDAD Y DE 20% A 70% DE UN COSURFACTANTE MEJORADOR DE SUAVIDAD; e)DE 69,4% A 84,9% DE AGUA. LA COMPOSICION SE AJUSTA A UN pH DE 3,5 A 4,5. LA RELACION DE SURFACTANTES NO ANIONICOS Y ANIONICOS ES INFERIOR A 1:1. LA COMPOSICION ES UTIL PARA REDUCIR EL NUMERO DE GERMENES EN LA PIEL Y DISMINUIR LA PROPAGACION DE BACTERIAS TRANSITORIAS GRAM NEGATIVAS Y GRAM POSITIVAS
Patent PE-16191-A1 (PE)
Title: Seleccion de visualizacion de campo disparador
Inventor: YANKER PETER CORNELIUS
IPC: G06C13/00
Filed: 1990-06-12
Abstract: CARACTERIZADO POR PROPORCIONAR UN CONJUNTO DE CIRCUITOS PARA MOVER EL CURSOR Y PERMITIRLE PONER EN PRACTICA UNA OPERACION DE SELECCION PARA UNA SUBRUTINA DETERMINADA. EL APARATO EMPLEA UN METODO QUE PERMITE A LOS CAMPOS DISPARADORES SER INVISIBLES. DICHO METODO COMPRENDE: VISUALIZAR LA IMAGEN SIN LOS CAMPOS DISPARADORES Y ALTERAR EL CURSOR EN LA REPRESENTACION VISUAL DE UNA CONFIGURACION A OTRA UNA VEZ QUE EL CURSOR SEA MOVIDO A UN CAMPO DISPARADOR A FIN DE INDICAR MEDIANTE ESTA AL USUARIO LA PRESENCIA DEL CAMPO DISPARADOR. SE EMPLEA EN COMPUTADORAS
Patent PL-242376-A1 (PL)
Title: Synergetic agent for fighting against plant diseases
IPC: A01N47/14
Filed: 1983-06-06
Abstract: The invention relates to plant protection compositions based on a two-component system of plant fungicides, one of which is 1-[2-(2,4-dichlorophenyl)pentyl]-1H-1,2,4-triazole and the other is Mancozeb, which is an [ethylenebis(dithiocarbamato)]manganese complex with [ethylene-bis(dithiocarbamato)]zinc of the formula II    <IMAGE> (II)  In the range from 1:3 to 1:100 the disclosed mixtures display enhanced fungicidal activities.
Patent PL-287642-A1 (PL)
Title: Method of obtaining captopril
Inventor: ANDERSON NEAL G
IPC: C07D207/46
Filed: 1990-11-06
Abstract: A process is disclosed for direct isolation of captopril from a substrate of the formula <CHEM> wherein R is lower alkyl or lower alkoxy. In this process, the substrate is first treated with an aqueous alkali metal hydroxide capable of forming a water-soluble salt of the substrate, wherein the alkali metal hydroxide has a concentration of 4 M or greater. The substrate is then neutralized, preferably with a mineral acid. By this process, captopril may be directly crystallized from an aqueous solution, avoiding the prior art use of organic solvents and zinc treatment to reduce levels of sulfide and disulfide impurities, respectively. In an alternative embodiment, neutralization is carried out by use of a hydrogen-supplying ion exchange resin.
Patent PL-307246-A1 (PL)
Title: Apparatus for receiving light beams
Inventor: BECK JIM
IPC: G01N21/27
Filed: 1993-07-27
Abstract: An apparatus and a method are provided for selectively eliminating weeds in agriculture operations. To provide selective elimination, at least two light (radiation) emitters, powered by an internal power source, are modulated to switch on and off at very high speeds. Each emitter emits radiation of a different emitter wavelength. The on/off modulation of one emitter is phase shifted by approximately 90 DEG  with respect to the modulation of the other emitter. The pair of emitters are focused on a particular spot on the ground. The light beams, provided by the emitters, are reflected off a plant or the soil and are intercepted by a photodetector. Because plants have a characteristic spectral reflectance in regions of the electromagnetic spectrum which can be discriminated from the spectral reflectance of the background earth, the relative amplitudes of the reflected radiation at the two emitter wavelengths varies depending on whether the radiation is reflected off a plant or the soil. A ratio of the radiation at the two emitter wavelengths received by the photodetector is converted to a phase. This phase is compared to an initial reference phase of the modulation of one of the emitters. A controller uses this phase information to determine the presence or absence of a plant and then eliminates the weed.
Patent PL-310052-A1 (PL)
Title: Improvement in relation to balloons
Inventor: LANG PHILIP EDWARD
IPC: A63H27/00
Filed: 1994-01-31
Abstract: Balloons are sorted by dropping them into a hopper located above a suction device. A movable carrier is arranged between the hopper and the suction device such that balloons dropped into the trough and urged towards the suction device are gripped by means of the movable carrier. In an alternative arrangement, balloons are dropped onto a table, and a pair of gripper rods is moved so as to engage the necks of the dropped balloons, thereby to orient the gripped balloons in a desired direction. <IMAGE>
Patent PL-311745-A1 (PL)
Title: Substituted derivatives of beta-aryl beta-heteroaryl-alpha-cyanoacrylamides as inhibitors of tyrosine kinase
Inventor: BUZZETTI FRANCO
IPC: A61P37/06
Filed: 1995-03-02
Abstract: PCT No. PCT/EP95/00758 Sec. 371 Date Nov. 21, 1995 Sec. 102(e) Date Nov. 21, 1995 PCT Filed Mar. 2, 1995 PCT Pub. No. WO95/26341 PCT Pub. Date Oct. 5, 1995The present invention relates to new compounds of formula    <IMAGE>  (I)  wherein A is a bicyclic ring chosen from naphthalene, tetrahydronaphthalene, quinoline, isoquinoline and indole. B is a R2 substituted benzene ring or an unsubstituted pyridine or thiophene ring; R is hydrogen, C1-C6 alkyl, halogen, nitro, cyano, carboxy or a group NR3R4 wherein each of R3 and R4 is independently hydrogen or C1-C6 alkyl; R1 is hydrogen, C1-C6 alkyl or C1-C6 alkanoyl; R2 is hydrogen, C1-C6 alkyl, halogen, nitro, cyano, carboxy, hydroxy, C1-C6 alkoxy, C1-C6 alkanoyloxy or a group NR3R4 wherein R3 and R4 are as defined above; n is zero or an integer of 1 to 2; x is zero or an integer of 1 to 5; and the pharmaceutically acceptable salts thereof. The compounds of the invention are useful as tyrosine kinase inhibitors.
Patent PL-317944-A1 (PL)
Title: Paper-making machine head box
Inventor: JOURDAIN JEAN-PIERRE
IPC: D21F1/02
Filed: 1996-05-02
Abstract: PCT No. PCT/FR96/00667 Sec. 371 Date Mar. 24, 1997 Sec. 102(e) Date Mar. 24, 1997 PCT Filed May 2, 1996 PCT Pub. No. WO96/35017 PCT Pub. Date Nov. 7, 1996In the headbox of a papermaking machine; the backplate has a diverging passage for each tube and opens out into the corresponding channel via its largest section; and the partitions are of length shorter than the length of the chamber between the backplate and the turbulence generator. The invention is useful for paper-making machines in which dilution is controlled upstream.
Patent PL-319659-A1 (PL)
Title: Diazepinodioles as inhibitors of phosphodiesterases iv
Inventor: PASCAL YVES
IPC: C07D487/06
Filed: 1995-10-13
Abstract: The invention relates to diazepinoindoles of formula:   <IMAGE>   in which R is hydrogen, lower alkyl or lower alkoxy; A is aryl or nitrogen-containing heteroaryl, each of which is optionally substituted by from one to three groups of halogen, lower alkyl, haloalkyl, lower alkoxy and acetamido, or their racemic forms, isomers or pharmaceutically acceptable salts, wherein for the racemic forms of the (S) configuration, A is not phenyl, haloalkyl, or 2-indolyl when R is hydrogen, and for the racemic forms of the (R) configuration, A is not 2-indolyl when R is hydrogen. Also, the invention relates to a method for inhibiting cyclic nucleotide phosphodiesterase activity by administering these compounds to a subject in an amount which is therapeutically effective to inhibit cyclic nucleotide phosphodiesterase activity.
Patent PL-323392-A1 (PL)
Title: Gypsum composition and application thereof
Inventor: LEPSIUS TILWIN
IPC: C04B24/08
Filed: 1996-08-14
Abstract: A gypsum-containing composition is characterised in that it contains 0.1 to 30 % of a special fatty additive, in relation to the whole dry mixture. Also disclosed is the use of said compositions to produce gypsum products, plaster facing, plaster floor, knifing fillers, mounting glues and modelling masses.
Patent PL-335214-A1 (PL)
Title: Motor vehicle exhaust system
Inventor: HOHEISEL GERHARD
IPC: F16B37/04
Filed: 1998-03-13
Abstract: The invention relates to a device for an exhaust gas system having two components, an exhaust gas system element which can be subjected to heat and a thermal shielding plate (1). Said thermal shielding plate (1) is fitted beneath the exhaust gas system element, and connected to it via a joining device (2) in such a way as to allow relative displacement of the exhaust gas system element and the thermal shielding plate (1) in relation to each other, as a result of different thermal expansion behaviour. The invention aims to create a sure and reliable connection between the exhaust gas system element and the thermal shielding plate, while nonetheless being simple and economical to produce. To this end, the joining device (2) has sliding tongues (7a, 7b, 17a, 17b) with sliding surfaces (9) for slidably accommodating a first component which accommodate the first component (3) with a predetermined, substantially horizontal spring resistance. Furthermore, the joining device is rigidly connected to the second component (1), and clamping agents (5, 6) make it possible to fix the second component (1) onto the joining device (2) and to brace the joining device (2) with the first component (3).
Patent PL-340715-A1 (PL)
Title: Method of obtaining monofilaments, films and other products of modified soluble cellulose
Inventor: STRUSZCZYK HENRYK
IPC: C08B1/00
Filed: 2000-06-12
Abstract: The method for the manufacture of fibres, films and other products from modified, soluble cellulose consists in that the starting cellulose pulp in a suspension of water, aqueous buffer with pH not lower than 2.5 and/or in an aqueous solution of enzymes like xylanases or cellulases is mechanically or enzymatically pretreated. Afterwards, the pretreated cellulose pulp, after a possible removal of the water - or solution surplus, is subjected to an enzymatic treatment with an aqueous solution of an enzyme composition containing a cellulase, preferably originated from Aspergillus niger or Trichoderma reesei fungi with an endo-1,4- beta -glucanase activity not lower than 0.1 U/cm<3>, preferably 1-3 U/cm<3>,  beta -glucosidase activity not lower than 0.01 U/cm<3>, preferably 0.05-0.1 U/cm<3>, filter paper activity FPA not lower than 0.01 U/cm<3>, preferably 0.1 to 1.0 U/cm<3>, and/or xylanases, preferably originated from Trichoderma reesei fungi with endo-1,4- beta -xylanase activity not lower than 0.5 U/cm<3>, preferably 30-100 U/cm<3>. The surplus of the enzymatic solution is next removed and the enzymes remaining in the cellulose are deactivated by water-washing at temperature above 60 DEG C. The obtained cellulose pulp is dissolved in aqueous solution of alkali metal hydroxides with concentration not lower than 5%, at temperature not lower than 0 DEG C, during at least 1 minute. The obtained alkaline cellulose solution is filtered and deaerated and subjected to coagulation in water or in an aqueous solution of an acid. The manufactured cellulosic products are washed with water to a neutral reaction and possibly dried.
Patent PL-350548-A1 (PL)
Title: Compositions of naltrexone microspheres for injection and their application in getting out of the habit of heroin and alcohol abuse
Inventor: TICE THOMAS R
IPC: A61K47/34
Filed: 2000-04-08
Abstract: An injectable slow-release naltrexone formulation is provided comprising naltrexone in a poly(D,L-lactide) matrix with a small amount of residual ethyl acetate. Upon intramuscular injection of the composition, naltrexone is released in a controlled manner over an extended period of time. The composition finds use in the treatment of heroin addicts and alcoholics to reduce consumption of the abused substances.