baber/WOPTO huggingface dataset:
Patent SI-9300089-B (SI)
Title: Ventilated filter cigarette
Inventor: SEIDEL HENNING
IPC: A24D1/04
Filed: 1993-02-22
Abstract: The invention relates to a ventilatable filter cigarette having three chambers (2, 4, 6), the chamber (2) at the tobacco rod end having a high pressure drop and a low tar retention owing to the fact that a core (12) of air-permeable cellulose acetate fibres is surrounded by a shell (14) of virtually air-impermeable cellulose acetate fibres. <IMAGE>
Patent SI-9520153-B (SI)
Title: Human DNase I variants
Inventor: LAZARUS ROBERT A
IPC: A61K38/00
Filed: 1995-02-24
Abstract: The present invention relates to amino acid sequence variants of human DNase I that have reduced binding affinity for actin. The invention provides nucleic acid sequences encoding such actin-resistant variants, thereby enabling the production of these variants in quantities sufficient for clinical use. The invention also relates to pharmaceutical compositions and therapeutic uses of actin-resistant variants of human DNase I.
Patent ZA-9510669-B (ZA)
Title: Process and apparatus for burning oxygenic constituentes in process gas
Inventor: RUEHL ANDREAS
IPC: F23G7/06
Filed: 1995-12-14
Abstract: A process and apparatus for burning combustible constituents in process gas in a main combustion enclosure, preferably a thermal post-combustion device, whereby the main combustion enclosure is separated from a combustion chamber (16) into which oxygenic gas and gaseous fuel are fed, mixed and burnt. The fuel for the apparatus is fed through a lance (22) which opens into a mixing chamber (14) which is supplied with oxygenic gas and either is itself the combustion chamber or merges with it, and the outer surface (66) of the combustion chamber is exposed at least partially to the process gas. The fuel is burned completely or nearly completely in the burner combustion chamber, and the mixture of burned fuel and gas leaving the combustion chamber oxidizes the combustible constituents in the process gas flowing outside the combustion chamber by yielding flameless heat energy to them.
Patent ZA-9711606-B (ZA)
Title: Cyclosporin derivatives, their preparation and the pharmaceutical compositions which contain them.
Inventor: BARRIERE JEAN-CLAUDE
IPC: A61K38/00
Filed: 1997-12-23
Abstract: A cyclosporin compound of the formula (I): wherein Alk and R are as defined herein, or a pharmaceutically acceptable salt thereof, which derivatives are is useful in the treatment and/or prophylaxis of retrovirus infections.
Patent AT-411140-B (AT)
Title: Breakfast cereal dispenser, comprises base plate with cereal containers mounted on it, each one having upper shaft and bottom removal sections
IPC: A47F1/02
Filed: 2000-08-10
Granted: 2003-10-27
Abstract: The cereal containers (2) mounted on a base plate (1) comprise an upper shaft section with an opening (6) in the top side for filling it with cereal, and a lower removal section extending towards the front with an opening (9) in the top side for removing cereal. The container is formed by two side wall panels (11, 12), an inner part forming the rear wall, base and front wall of the removal section, and a shaft section front wall that extends downwards into the removal section.
Patent CN-1014792-B (CN)
Title: 透明热塑性模塑组合物的制备方法
Inventor: WIENERS GERHARD
IPC: C08F20/16
Filed: 1988-03-10
Abstract: 公开了一种主要由(甲基)丙烯酸与环醇的酯制备的透明热塑性模塑组合物。可用简单而经济的方法制备这种组合物。在该组合物中，酸基和醇基可以是被氘化和(或)氟化的。特别好的醇组分是1，4，5，6，7，7-六氯代二环[2.2.1]庚-5-烯-2-醇。这种模塑组合物可被加工成高透明度和耐热变形性物品。
Patent FI-110540-B (FI)
Inventor: PELTONEN VESA
IPC: E21D21/00
Filed: 1999-12-02
Granted: 2003-02-14
Abstract: An arrangement for feeding soldering material into a space between a bolt and rock includes a sleeve-like nozzle which can be pushed tightly against a feed chamber on the rock bolt so that a feed hole in the feed chamber is connected to the inner space of the nozzle. The arrangement further includes a device for placing the nozzle around the feed chamber so that soldering material can be fed from the inner space of the nozzle into the drill hole.
Patent FI-117009-B (FI)
Title: Guidance system for multi-route elevator system, has guiding devices connected via data transfer link to set of control units controlling elevator system, where units comprises unit for controlling sub-assemblies
Inventor: RUSANEN NIKO
IPC: B66B/
Filed: 2005-03-08
Granted: 2006-05-15
Abstract: The system has guiding devices (2a-2d) which are connected via a data transfer link to a set of control units controlling an elevator system. The set of control units comprises a unit for controlling sub-assemblies of the elevator system. The set of control units comprises a destination call device e.g. a key panel, for receiving passenger`s destination calls. The guiding devices contain a control unit (3) and a number of sound reproduction devices (4) for the reproduction of guiding sounds. An independent claim is also included for a method for guiding passengers in a multi-route elevator system.
Patent FI-121456-B (FI)
Inventor: NYMAN BROR
IPC: B01F27/86
Filed: 2008-10-17
Granted: 2010-11-30
Abstract: The invention relates to a method and apparatus for mixing gas into slurry during flotation and for guiding the slurry dispersion upwards in the reactor in a controlled manner. The method utilises the combined effect of a powerful mixer and devices placed inside the reactor. The method and apparatus are especially suitable for the flotation of metal-bearing ores that are difficult to process.
Patent FI-127294-B (FI)
Inventor: PASANEN OTTO-PEKKA
IPC: F27B15/10
Filed: 2015-05-20
Granted: 2018-03-15
Abstract: Tässä julkaisussa on kuvattu leijutekniikkaa käyttävän reaktorin
arinan suutinkokoonpano (AI), joka koostuu painehäviön säätävästä
hoikista (3), alapuolisesta keraamisesta suutinlohkosta (I),
kiinnityspinnoista (8), yläpuolisesta keraamisesta suutin lohkosta
(2), lukitusrenkaasta (10) ja suojamuurauksesta (7).
Suutinkokoonpano asennetaan reaktoriin siten, että alapuolinen
keraaminen suutinlohkosta (1) asennetaan eristävän pohjan (Bl)
päälle ilmaa syöttävien putkien (a) kohdalle. Holkki (3) lukitsee
alapuolisen keraamisen suutinlohkon (1), kun se hitsataan ilmaa
syöttävään putkeen (a) asennettaviin kiinnityspinnoihin (8). Päälle
asennetaan yläpuoleinen keraaminen suutinlohko (2), joka lukitaan
tappiin (5) hitsattavalla kiinnitysrenkaalla (10). Tätä suojaamaan ja
epäjatkuvien pintojen poistamiseksi asennetaan yläpuoliseen
keraamiseen suutinlohkoon vielä suojamuuraus (7).
Suutinkokoonpanossa voi olla yksi tai useampi kaasupurkausaukko
(12), jollainen muodostaa suoran tai kaarevan rakenteen.
Patent FI-127892-B (FI)
Title: Method and apparatus for producing elongate fibre product
Inventor: PIHKO RIKU
IPC: D21F11/00
Filed: 2016-10-05
Granted: 2019-05-15
Abstract: According to an example aspect of the present invention, there is provided an apparatus and a method comprising a forming section (1) for feeding an aqueous furnish of fibres on a moving surface (2, 3) to form a shape of a product and a pressing and heating section (6) for removing water from the shaped product received from the moving surface (2). The pressing and heating section (6) comprises a felt (7) and metal belt (9) that are set to run against each other for receiving the furnish from the moving surface (2) and heating elements (11, 13, 14) for heating the web in at least two pulses including at least one first pulse wherein the product is pressed for at least 10- 200 ms on a first pressure and at least one second heating and smoothing pulse wherein the product is heated at least for 10 - 200 ms on a pressure that is higher than the first pressure, and at least one of the surfaces pressing the product being the smooth metal belt (9).
Patent FI-127458-B (FI)
Title: Apparatus and method for measuring physiological parameters of eye
Inventor: SALKOLA MIKA
IPC: G01N21/3581
Filed: 2017-05-18
Granted: 2018-06-29
Abstract: Disclosed is an apparatus and a method for measuring physiological parameters of an eye. The apparatus comprises a transmitter for transmitting a first set of electromagnetic waves of a first set of frequencies towards the eye, a receiver for receiving reflected electromagnetic waves corresponding to the transmitted first set of electromagnetic waves of the first set of frequencies, a comparator configured to compare the transmitted first set of electromagnetic waves with the received reflected electromagnetic waves for determining an amplitude response and a phase response for each of the electromagnetic waves of the first set of frequencies, and a calculation unit configured to fit the determined amplitude response and phase response to a physiological model of the eye to determine the physiological parameters of the eye.
Patent HK-1048524-B (HK)
Title: Thread locking
Inventor: ANDREW HAYWARD
IPC: G06F9/52
Filed: 2002-11-25
Abstract: The invention relates to a method of providing thread locking within a multi-threading object-oriented computer program. Each object (400, 500, 600) includes a reserved lock word which is initially set to zero to indicate that the object is unlocked. When the object is to be locked, the word is changed to a pointer (630) which points to a particular memory block (710) within a separate lock pool (700). That memory block contains all the necessary locking information for the object. When the object is to be unlocked, the pointer (630) is deleted, and the lock word set back to zero. The corresponding block (710) in the lock pool is then released, and may be reused for other locking information or for other data that may be required to be stored by the executing application.
Patent HU-176991-B (HU)
Title: Apparatus for local galvanic coating objects
Inventor: LUKYANCHIKOV VIKTOR E
IPC: C25D5/08
Filed: 1977-07-28
Abstract: 1526648 Selective electro-plating V E  LUKYANCHIKOV I V BAIDALINOV and M Y SELIVANOV 25 July 1977 [28 July 1976] 31058/77 Heading C7B Workpieces are selectively electro-plated whilst held with their lower surface in pressure contact with an upward facing wall having ports 16 for electrolyte and masking means 15 for delimiting the plated area. The workpiece holder has at least two surfaces with workpiece sealing, retaining and positioning means for pressing the work against the wall, and is rotatable such that when one surface is in use the other is free, enabling replacement of the plated work. In Fig. 1 a two-sided rotatable magazine 20 is arranged for vertical movement and has pressure springs 38. Springs 54 engage balls 53 in detents of the shaft 30 for proper positioning of the rotated magazine.
Patent IL-242791-B (IL)
Title: Antibodies directed to ricin toxin
Filed: 2015-11-26
Abstract: An isolated monoclonal antibody or any antigen-binding fragment thereof which binds to ricin toxin, an expression vector including the isolated nucleic acid molecule and a host cell transfected with said isolated nucleic acid molecule or with the expression vector, a pharmaceutical composition including as an active ingredient the isolated monoclonal antibody or any antigen-binding fragment thereof, the bispecific molecule or the immunoconjugate and a pharmaceutically acceptable carrier, excipient or diluent, and a method of prophylaxis, treatment or amelioration of ricin toxin poisoning including administering to a subject in need thereof a therapeutically effective amount of the isolated monoclonal antibody or any antigen-binding fragment thereof, the bispecific molecule, the immunoconjugate or the pharmaceutical composition.
Patent IT-1254076-B (IT)
Title: Impianto di segnalazione luminosa per serrature elettriche
Inventor: ERRANI DEO
IPC: E05B47/00
Filed: 1991-12-05
Granted: 1995-09-07
Abstract: Impianto di segnalazione luminosa per serrature elettriche caratterizzato dal fatto che comprende, collegati in serie ad una tensione alternata di alimentazione, un circuito atto e permettere il passaggio prevalentemente unidirezionale della corrente, generando ai suoi capi, durante detto passaggio, una tensione costante, la bobina dell'elettromagnete ed un primo diodo raddrizzatore, detto circuito comprendendo un diodo polarizzato in contrapposizione a detto primo diodo raddrizzatore, e altresì caratterizzato dal fatto che parallelamente a detto primo diodo raddrizzatore è disposto un pulsante locale, mentre parallelamente a detta bobina e detto primo diodo raddrizzatore è disposto un collegamento in serie di un secondo diodo raddrizzatore, un indicatore luminoso ed un componente semiconduttore per il controllo di detto indicatore luminoso, detto componente essendo pilotato da un oscillatore collegato fra detto primo e detto secondo diodo raddrizzatore attraverso un contatto comandato ad aprirei quando la porta è in posizione di chiusura.
Patent IT-1258558-B (IT)
Title: Machine for cutting the teeth of a circular saw
IPC: B23D/
Filed: 1992-07-13
Granted: 1996-02-27
Abstract: Machine for cutting the teeth of a circular saw characterised by the fact that it comprises means for supporting a circular saw so that it can rotate, means for the step by step rotation of the said saw, a grinding wheel with associated motor drive that has its axis parallel to that of the means of support and has a working area on the trajectory of the end of the teeth in order to make swarf-breaking cuts. <IMAGE>
Patent IT-1247919-B (IT)
Title: Impianto per il rivestimento sotto vuoto di substrati ottici
Inventor: CIPARISSO DELIO
IPC: C23C14/50
Filed: 1991-05-10
Granted: 1995-01-05
Abstract: L'impianto di rivestimento sotto vuoto mediante deposizione per vaporizzazione di strati di nobilitazione su substrati ottici (10) comprende dei mezzi portapezzi (3) che ruotano sopra sorgenti d'evaporazione in un recipiente, nel quale può essere generato il vuoto. I mezzi portapezzi (3) comprendono una pluralità di portapezzi voltabili (33) che presentano almeno approssimativamente una forma a settore di cerchio e sono montati in modo da formare una calotta su un albero rotante comune (32), in modo da poter essere ribaltati ciascuno di 180°. Ciascun portapezzi voltabile (33) presenta su entrambi i suoi lati delle superfici reggipezzi con dei mezzi per il bloccaggio mediante serraggio di una pluralità di substrati (10) che devono essere rivestiti unilateralmente ed appoggiano sulla rispettiva superficie reggipezzi.
Patent IT-1248053-B (IT)
Title: Apparatus for automatically operating and controlling copying machines
Inventor: BRUGGI MARIO
IPC: A43D/
Filed: 1991-06-13
Granted: 1995-01-05
Abstract: Apparatus for automatically operating and controlling copying machines comprising, in combination, drive means 5 designed to move a carriage 4 which is engaged with corresponding guide means 1 at a constant speed along a circular path around a fixed spindle, and means 12, 14 designed to follow at a variable speed a path corresponding to a predetermined template shape, these means 12, 14 being attached to a movable spindle parallel with the said fixed spindle, via suitable transmission means 8, 9, 10 and means 6, 7 which compensate for the difference in length in the trajectories followed by the said carriage, the said movable spindle and the said means 12, 14, with power supply means 18 and means for controlling the beginning and end of the cycle and/or the beginning and end of an alternative path during copying also being provided. <IMAGE>
Patent IT-1274685-B (IT)
Title: Machine for the stretching and braking of cables during laying
Inventor: PEGURRI ANGELO
IPC: B66D/
Filed: 1994-07-29
Granted: 1997-07-24
Abstract: The present invention refers to a machine for the stretching and braking of cables during laying, comprising means of adhesion that are placed opposite each other along an operating segment, essentially rectilinear, of their length, and which can be engaged at times with a segment of cable being stretched or braked that is made to pass between the means of adhesion along the operating segment. There are provided means of moving the means of adhesion along the operating segment in the direction of movement of the cable and means of controlled actuation of the means of movement for applying a predetermined traction to the cable. <IMAGE>
Patent IT-1253455-B (IT)
Title: Procedimento per l'incastonatura di pietre preziose
IPC: A44C/
Filed: 1991-07-17
Granted: 1995-08-08
Abstract: Il presente trovato concerne un procedimento per l'incastonatura di pietre preziose.Esso prevede l'impiego di una montatura (1) provvista di una sede cava in forma di canale (3) lungo la quale vengono distribuite le pietre (2). Il corretto posizionamento e reciproco distanziamento delle pietre è realizzato per mezzo dell'inserimento di una parte delle pietre stesse in incavature o fori (4) già predisposti lungo la parete di fondo della sede in forma di canale (3).
Patent IT-1258471-B (IT)
Title: Apparecchiatura e metodo per il lavaggio della superficie superiore di autoveicoli
IPC: B60S3/06
Filed: 1992-08-28
Granted: 1996-02-26
Abstract: Un telaio di guida (9) che supporta uno spazzolone di sommità per i movimenti di sollevamento e di abbassamento viene preliminarmente inclinato nella direzione di una freccia a per mezzo di un cilindro, quando un telaio mobile (4) deve essere fatto spostare verso un veicolo in direzione destrorsa, come si vede nella figura 2. Quando lo spazzolone di sommità o superiore (8) che si appoggia contro il veicolo viene sollevato lungo il telaio di guida per mezzo della forza motrice generata da un motore (24), esso viene dolcemente fatto salire lungo il telaio di guida (9) che è stato inclinato nella direzione a da una forza di reazione che viene generata dal veicolo, per cui si elimina la possibilità di un eccessivo incremento della pressione superficiale. In aggiunta, l'intervallo del movimento oscillante dello spazzolone superiore (8) viene allargato e pertanto, anche se la velocità di movimento del telaio mobile viene aumentata, lo spazzolone superiore (8) può essere fatto salire dolcemente.
Patent IT-1257668-B (IT)
Title: Toilet process and equipment with the circulation of wash water and the inerting of solid wastes
IPC: E03D/
Filed: 1992-07-06
Granted: 1996-02-01
Abstract: Process and equipment for the treatment of toilet material in which separation is effected between the solids and liquids originating from the toilet, the solids are compacted, dried and inerted, the liquids are prefiltered, the prefiltered liquids are subjected to reverse osmosis in order to obtain virtually pure water and the water treated in this way is oxygenated for reuse. <IMAGE>
Patent MX-169057-B (MX)
Title: Mejoras a cepillo dental inyector de pasta
Inventor: PICAZO RUBEN RAMIREZ
IPC: A46B11/02
Filed: 1984-07-05
Abstract: La presente invención se refiere a mejoras a cepillo dental inyector de pasta que está formado por la combinación de un depósito de pasta que es el mango del cepillo y un módulo autoalimentador de pasta dental caracterizado porque el depósito tiene en su base un disco cilíndrico unido a una espiral que es girada por la acción del disco moviendo una plataforma colocada alrededor de depósito la cual permite el ascenso o descenso del producto que se aloja en el depósito, la plataforma se mantiene nivelada por medio de unas guias que van integradas al cuerpo del depósito, además el depósito tiene un conducto que se comunica con el módulo del cepillo, dicho conducto tiene una punta que rompe el sello de la boca del depósito de pasta, el módulo o cabeza del cepillo tiene una serie de perforaciones entre las cerdas, dichas perforaciones llevan unas compuertas manipuladas por un dispositivo colocado en el tubo o conducto de pasta que permiten abrir o cerrar las perforaciones del cepillo a voluntad asimismo, el tubo del depósito de la pasta dental tiene una perforación en su extremo superior para la retroalimentación de la pasta dental, llevando un tope en la parte superior de la cabeza del cepillo donde acopla la cubierta o tapa del mismo.
Patent PT-103642-B (PT)
Title: Composição de materiais compósitos com aplicação na área de protecção balística
Inventor: BROCKES OTTO COSTA
IPC: C08L3/00
Filed: 2007-01-24
Abstract: A PRESENTE INVENÇÃO REFERE-SE A UMA COMPOSIÇÃO DE MATERIAIS À BASE DE AÇÚCARES E SEUS DERIVADOS, NOMEADAMENTE SACAROSE E DE POLÍMEROS LENHO-CELULÓSICOS DE ORIGEM VEGETAL, NOMEADAMENTE SERRADURA. O MATERIAL OBTIDO APRESENTA UMA RESISTÊNCIA AO IMPACTO ELEVADA E PODE SER UTILIZADO COMO MATERIAL BALÍSTICO, ENTRE OUTRAS APLICAÇÕES.
Patent PT-104128-B (PT)
Title: Dispositivo para comunicação de dados e método para a conexão na rede
Inventor: PEREIRA HUMBERTO BENTO AYRES
IPC: H04M11/00
Filed: 2008-07-09
Abstract: A PRESENTE INVENÇÃO DIZ RESPEITO A UM DISPOSITIVO PARA COMUNICAÇÃO DE DADOS, E A MÉTODOS PARA NEGOCIAR, ESTABELECER, ACEITAR E TERMINAR CONEXÕES NA REDE, EM QUE OS DADOS SÃO REPRESENTADOS POR UMA RELAÇÃO ENTRE OCORRÊNCIAS DA CONEXÃO E A EVOLUÇÃO DO ESTABELECIMENTO DA CONEXÃO ATRAVÉS DO TEMPO. O DISPOSITIVO DE COMUNICAÇÃO DA PRESENTE INVENÇÃO COMPREENDE OS SEGUINTES ELEMENTOS: A) UMA LIGAÇÃO A UM MEIO ONDE SE PODE TRANSMITIR UM SINAL; B) UM VÍNCULO A UM SISTEMA COM UM SERVIÇO PARA TRANSMISSÃO DE SINAIS NO MEIO, ORIENTADO À CONEXÃO; D) UM TRANSMISSOR DE DADOS; E) UM RECEPTOR DE DADOS. A PRESENTE INVENÇÃO APRESENTA A VANTAGEM DE ANULAR OS CUSTOS NA TRANSMISSÃO DE DADOS. NO CASO DE UMA REDE TELEFÓNICA, POR EXEMPLO, O CUSTO É ZERO POIS A TRANSMISSÃO DE DADOS OCORRE ANTES DA ACEITAÇÃO DA CHAMADA. PORTANTO, A PRESENTE INVENÇÃO INSERE-SE NA ÁREA TECNOLÓGICA DAS TELECOMUNICAÇÕES E DA TRANSMISSÃO DE INFORMAÇÃO.
Patent PT-104690-B (PT)
Title: Método para fabricar partículas de base polimérica ou de hidrogel utilizando substratos repelentes a líquidos.
Inventor: MANO JOAO FILIPE COLARDELLE DA LUZ
IPC: A61K9/51
Filed: 2009-07-27
Abstract: A PRESENTE INVENÇÃO REFERE-SE AO PROCESSO PARA A PREPARAÇÃO DE PARTÍCULAS SÓLIDAS OU ELÁSTICAS, DE BASE POLIMÉRICA, OBTIDAS A PARTIR DA SOLIDIFICAÇÃO OU ENDURECIMENTO DE GOTAS LÍQUIDAS OU VISCOSAS DEPOSITADAS SOBRE SUPERFÍCIES REPELENTE A LÍQUIDOS. AS FORMULAÇÕES LIQUIDAS PODERÃO CONTER MOLÉCULAS, CÉLULAS, MICROORGANISMOS OU OUTRAS SUBSTÂNCIAS OU OBJECTOS QUE FICARÃO RETIDOS NAS PARTÍCULAS DURANTE O SEU PROCESSAMENTO. O MÉTODO DE PRODUÇÃO DESTAS PARTÍCULAS PERMITE ENCAPSULAR COM GRANDE EFICIÊNCIA ESTES TIPOS DE CONTEÚDOS EM PARTÍCULAS DE VOLUME CONTROLÁVEL, APROPRIADAS PARA SEREM UTILIZADAS EM APLICAÇÕES BIOMÉDICAS, FARMACOLÓGICAS, BIOTECNOLÓGICAS, AGRÍCOLAS, COSMÉTICA OU ALIMENTAR.
Patent RO-90150-B (RO)
Inventor: HEIDRUN JUNGHANSS
IPC: D06M15/643
Filed: 1984-05-28
Abstract: Inventia se refera la un procedeu, conform caruia urzeala de sticla este tratata  cu o substanta de încleiat care se prezinta sub forma dispersii apoase, si este constituita 0,5...10%/g amidon; 0,1....10%/g grasime emulsionata; 0......3%/g substanta de înmuiere a textilelor; 0...3%/g adjuvant cationi activi, restul apa, fiind uscata în continuare la temperaturi de 100...130 degree C printr-o încalzire prin contact repetat cunoscuta în sine. Se aplica în industria textila.
Patent TW-362096-B (TW)
Title: Novel piperidine derivatives and the process for preparing the same
Inventor: KING CHI-HSIN R
IPC: C07D211/70
Filed: 1993-04-07
Granted: 1999-06-21
Abstract: The present invention is related to a novel process for preparing certain piperidine derivatives which are useful as antihistamines, antiallergy agents and bronchodilators.
Patent TW-401392-B (TW)
Title: Preparation of 3-mercaptopropionitrile and 3-mercaptopropionic acid
Inventor: WOODBURY RICHARD P
IPC: C07C323/60
Filed: 1995-04-12
Granted: 2000-08-11
Abstract: Facile process for the production of 3-mercaptopropionitrile and 3-mercaptopropionic acid by reacting thiodipropionitrile with alkaline hydrosulfide in the presence of alkaline hydroxide. Acidification of the resulting reaction product with a strong acid, or saponification, yields the desired mercaptopropionic acid, which can be isolated in high yield.