baber/WOPTO huggingface dataset:
Patent IT-MI952722-A1 (IT)
Title: Sistema di trasmissione di segnali ottici modulati e depolarizzati
Inventor: FONTANA FLAVIO
IPC: H04B10/06
Filed: 1995-12-21
Abstract: Viene descritto un sistema di comunicazione ottica comprendente una sorgente ottica; un modulatore ottico, ricevente un segnale di trasmissione avente frequenze comprese in una banda di segnale ed atto ad emettere un segnale ottico modulato avente una prefissata larghezza di banda ottica; una linea di trasmissione ottica comprendente un tratto di fibra ottica; un ricevitore ottico atto a ricevere il segnale ottico in presenza di un prefissato SNR nella banda di segnale, misurato con una banda di 5 MHz.Il sistema di telecomunicazione comprende inoltre, connesso otticamente fra il modulatore ottico e la linea di trasmissione ottica, un depolarizzatore comprendente due tratti di fibra ottica a mantenimento di polarizzazione, collegati fra loro otticamente in modo che i rispettivi assi di polarizzazione formino un angolo di 45°, in cui la larghezza di banda ottica, le lunghezze e la birifrangenza delle fibre ottiche a mantenimento di polarizzazione sono operativamente scelte in modo che il SNR al ricevitore nella banda di segnale non differisca per più di 1 dB dal SNR al ricevitore misurato con una banda di 5 MHz sostituendo al tratto di fibra ottica della linea di trasmissione un attenuatore passivo di pari attenuazione.
Patent IT-MI962091-A1 (IT)
Inventor: VEZZANI CORRADO
IPC: B01D1/22
Filed: 1996-10-10
Abstract: The present invention relates to a method for the concentration of liquid mixtures, comprising the step of causing a continuous stream of the liquid mixtures to flow in the form of a turbulent thin layer in contact with a heated wall. For that purpose, a continuous stream of liquid mixture is fed into a turbo-concentrator comprising a cylindrical tubular body (1), a heating jacket (4) and a bladed rotor (8) rotatably supported in the cylindrical tubular body (1). The liquid mixture is centrifuged to form a dynamic and tubular thin layer, the thin layer advancing inside the cylindrical tubular body (1) then being discharged continuously in the form of a stream of concentrated liquid mixture. <IMAGE>
Patent IT-MI982364-A1 (IT)
Inventor: BERNINI EVA
IPC: A61K9/00
Filed: 1998-11-03
Abstract: The invention is directed to a process for the preparation of suspensions of drug particles for inhalation delivery, said process providing particles of optimised particle size and distribution homogeneously dispersed in the carrier.  The process, which is also suitable for the preparation of sterile suspensions, includes the step of homogenising and micronising the formulation in a turboemulsifier provided with a high-potency turbine, optionally followed by a treatment in a high-pressure homogeniser.  A further aspect of the invention is directed to a process for preparing micronised sterile beclomethasone dipropionate by gamma-irradiation.
Patent IT-MI991575-A1 (IT)
Inventor: CARPANETO GIACOMO
IPC: B01D53/56
Filed: 1999-07-15
Abstract: The present invention relates to a method for reducing environmental emissions in liquid-fuel combustion processes, comprising a step of injecting an urea aqueous solution, by a carrier fluid, into a region of a heat generator where the combustion products have a temperature from 800 DEG C to 1000 DEG C.  <IMAGE>
Patent IT-PG990061-A1 (IT)
Inventor: CALZOLARI SERGIO
IPC: B29C33/20
Filed: 1999-10-28
Abstract: A molding machine for polystyrene elements with locking systems of die halves (2, 3) obtained by means of multiple mechanical irreversible screw actuators (4). Each actuator (4) receives motion from a chain drive that rotates the toothed crown (27) and the female screw, driving the shaft (15) into motion by means of its acme thread screw (21). The pin engages on the cam (30) located in the body. The cam profile drives the shaft (15) first into rotation-translation and then into axial translation. Further to these movements, the locking element that is joined to the shaft locks the two die halves (2, 3). Therefore, locking and unlocking of the moving die half (2) is obtained by means of the synchronized motion of a series of kinematic mechanisms that allow for obtaining high closing forces with small controlling forces.
Patent IT-RE940073-A1 (IT)
Title: Metodo e attrezzatura per controllare la presenza delle piantine  nei vassoi di germinazione
Inventor: ORIOLI GIACOMO
IPC: A01C/
Filed: 1994-09-12
Abstract: L'invenzione si applica ad alveoli (3) di germinazione del vassoio (2) aventi una superficie con micro - fessure/micro - porosità, quale la superficie del polistirolo espanso; attraverso il foro passante (5) di ciascun alveolo (3), viene spinta verso l'alto un'asta di spinta (11) in modo da spingere verso l'alto il substrato (4) con la piantina e viene accertata la presenza o l'assenza della piantina in funzione della resistenza che l'asta di spinta (11) .incontra contro il substrato (4).
Patent IT-RM920915-A1 (IT)
Inventor: BOLOGNESI MARIA LAURA
IPC: C07C/
Filed: 1992-12-21
Abstract: The present invention relates to a proces for manufacturing L-(-)-carnitine from D-(+)-carnitine or a derivative thereof. D-(+)-carnitine is esterified in order to protect the carboxyl group and subsequently converted to an acyl derivative. The acyl derivative is then converted to a lactone of L-(-)-carnitine. Finally, the lactone is reopened to obtain L-(-)-carnitine.
Patent IT-TO950125-A1 (IT)
Title: Elemento assorbente e protettivo per applicazioni cutanee, ed indumen-  to intimo ottenuto con uno o piu' di tali elementi
Inventor: LEVI MARINA
Filed: 1995-02-22
Abstract: Un elemento assorbente e protettivo destinato all'applicazione su parti del corpo umano soggette a sudorazione e sensibili agli sbalzi termoigrometrici è composto da una massa di materiale assorbente (16), rivestita su entrambe le facce da fogli (18) di materiale filtrante. Un'armatura di rinforzo reticolare (20) sostanzialmente inestensibile è preferibilmente incorporata nella massa di materiale assorbente.L'elemento assorbente e protettivo può essere sotto forma di un materasso (10) suddiviso da un reticolo di doppie cuciture (12) che definiscono linee di quindi per ritagliare dal materasso stesso cuscinetti (14) o pannelli della forma e delle dimensioni più adatte alla parte del corpo su cui è prevista l'applicazione.(Figura 2).
Patent IT-TO950535-A1 (IT)
Title: Dispositivo di controllo della messa a terra  di un utilizzatore elet-  trico, in particolare della carrozzeria nei veicoli elettrici.
Inventor: GUERZONI ROBERTO
IPC: H02H3/33
Filed: 1995-06-27
Abstract: Il dispositivo (1) coopera con un interruttore differenziale (7) avente dei contatti (5, 6) sulla linea di alimentazione (2, 3) tra la rete di distribuzione dell'energia elettrica (34) ed un utilizzatore elettrico (33), e comprende una sezione di monitoraggio (28) dell'integrità del collegamento di terra, atta a generare un segnale di controllo in caso di mancanza di tale integrità; ed una sezione di intervento (29) ricevente il segnale di controllo e destinata, quando attivata a generare un passaggio di corrente tra le linee di alimentazione (2, 3) tale da far intervenire l'interruttore differenziale 7.
Patent IT-TO960040-A1 (IT)
Title: Sacca sanitaria a molteplice contenimento di luiquido fisiologico in  genere.
Inventor: PAGLIANO GIUSTINO
IPC: A61M/
Filed: 1996-01-25
Abstract: Tramite interposta staffa in materiale sintetico di appiglio, la sacca in oggetto risulta direttamente e rapidamente vincolata al letto di degenza, in valida stabilità e funzionalità ed ottimale dinamicità degli indeformabili cateteri convogliatori, bloccati internamente da pertinenti elastici fermagli, la quale inoltre può risultare presente anche in molteplicità, essendo ricavato nella sacca stessa attigui comparti, determinati da distanziate e monolitiche paretine interne, originandosi la disponibilità della raccolta fluidica post-operatoria di svariata tipologia a controllo volumetrico e qualitativo, a seguito del necessario intervento chirurgico in contemporaneità su diversi organi del tessuto umano.
Patent IT-VI990109-A1 (IT)
Inventor: ANTONIAZZI ANTONIO
IPC: B65G15/34
Filed: 1999-05-27
Abstract: A conveyor belt is formed of an elastic fabric which includes elastic conductive fibers. The elastic conductive fibers are formed by helically winding the conductive fibers around elastic yarn forming the elastic fabric.
Patent NO-20100261-A1 (NO)
Title: Fremgangsmate for a hindre inntrengning av maur
Inventor: ERVIK KENNETH
IPC: A01M1/24
Filed: 2010-02-19
Abstract: Det er beskrevet en fremgangsmåte for å hindre at maur etablerer seg i plater av polystyren benyttet som markdekke og isolasjon i bygningskonstruksjoner. Bygningskonstruksjonen omfatter en ringmur (1). Fremgangsmåten består i å bruke en sperre i form av en plastmembran (9, 5), fortrinnsvis en radonmembran som er UV-stabilisert og har lang holdbarhet, på utsiden av isolasjonsmaterialet. Ved at man legger en plastmembran (9) under polystyrenplatene (2), opp langs ringmur (1), videre over kanten og opp under kledning med en sperre ved overgang vil man hindre maurene å komme til isolasjonen for å etablere reder. En annen løsning er å legge plastmembranen (9) under polystyrenplatene, ned under ringmuren/fundamentet (1), opp utvendig langs ringmuren/fundamentet hvor plastmembranen (9) blir overlappet med vortepapp (10) som brukes for drenering og overlappen tettes med fugemasse.
Patent NO-20130907-A1 (NO)
Title: Noytron tilbakespredningsinstrument
Inventor: PARTINGTON THOMAS JOHN
IPC: G01F23/288
Filed: 2013-07-01
Abstract: Oppfinnelsen angår et instrument for å bestemme nøytrontilbakespredning fra et objekt, som omfatter en nøytronkilde (12), en nøytrondetektor (14) som er i stand til å detektere termiske nøytroner, og et hus (10) som er ugjennomtrengelig for vann og har minst en ytre arbeidsflate (20) for plassering i nærheten av objektet, hvor kilden og detektoren er plassert inne i huset på en slik måte at avstanden mellom detektoren og den ene eller de flere arbeidsflatene er mindre enn 25 mm, og avstanden mellom detektoren og enhver annen ytre overflate for huset er minst 50 mm.
Patent NO-20140373-A1 (NO)
Title: Anordning og framgangsmåte for styring av returstrømningen fra et borehull.
Inventor: RAJABI MEHDI MIR
IPC: E21B33/12
Filed: 2014-03-24
Abstract: Det tilveiebringes en anordning og en framgangsmåte for styring av returstrømning fra et borehull (22) hvor borevæske blir tilført fra en overflaterigg (16) via en borestreng (4) med flere seksjoner til en bunnhullssammenstilling (18), hvor borerørsseksjoner (6) har rørkoplinger (8) som innbefatter et parti (9) med forstørret utvendig diameter, og hvor det er dannet et ringrom (12) mellom et rør (2) og borestrengen (4), og hvor ringrommet (12) står i fluidforbindelse med eller utgjør en del av en returbane (40) for borevæsken, og hvor det er anbrakt en struping (1) i ringrommet (12), og hvor strupingens (1) lengde (L) overstiger avstanden (M) mellom partiene (9) med forstørret diameter på to tilstøtende rørkoplinger (8).
Patent PE-12695-A1 (PE)
Inventor: ORTIZ PEREZ LUIS R
IPC: H04M3/08
Filed: 1994-03-21
Abstract: A self-diagnostic system for checking all functions of a cellular-transceiver system having a cellular-interface unit (10), which interface unit (10) couples a standard telephone set (T,R) to a cellular transceiver, which interface unit (10) converts the DTMF or pulse-type dialing signals into digital format for transmission to the cellular transceiver in which, the dialed number made on the landline telephone may be used to call a number over the cellular system. The present invention not only monitors and checks the proper functioning of the transceiver and associated power supply (figure 11), but will also monitor and check the interface unit (10).
Patent PE-35695-A1 (PE)
Title: Aparato impresor con liberacion diferida de atascamiento
Inventor: MILILLO WILLIAM D
IPC: G03G21/00
Filed: 1994-09-21
Abstract: QUE INCLUYE ELEMENTOS PARA IMPRIMIR UNA IMAGEN SOBRE UNA HOJA, UN APARATO CON ELEMENTOS PLURALES DE PROVISION DE HOJAS, CADA UNO DE LOS CUALES TIENE UNA PLATAFORMA DE SOPORTE DE LA PILA DE HOJAS, ELEMENTOS PARA LA ALIMENTACION Y EL TRANSPORTE DE HOJAS, EL CUAL COMPRENDE UN PAR DE RODILLOS PARA QUITAR EL PAPEL, UNO DE LOS CUALES ES ACCIONADO GIRATORIAMENTE PARA PRODUCIR UN PRESIONADO ENTRE RODILLOS PARA TRANSPORTE DE HOJAS; UN CONTROLADOR PARA CONTROLAR EL FUNCIONAMIENTO DEL APARATO, UN SENSOR PARA SENSAR EL PASAJE DEL BORDE DELANTERO DE LA HOJA Y ENVIAR UNA SENAL AL CONTROLADOR CUANDO ELLO OCURRE. SE EMPLEA EN APARATOS IMPRESORES AUTOMATICOS, COPIADORAS, Y OTROS, DONDE SE REQUIERAN ELEMENTOS DE ALIMENTACION DE HOJAS
Patent PE-56396-A1 (PE)
Title: Proceso para purificar el antigeno de superficie de la hepatitis b viral que comprende al peptido pres2
Inventor: PARK SOON-JAE
IPC: C12P21/02
Filed: 1995-12-07
Abstract: QUE COMPRENDE LA ETAPA DE RUPTURA DE LAS CELULAS DE UN ORGANISMO RECOMBINANTE UTILIZANDO UN TAMPON QUE CONTIENE UNA CONCENTRACION DE SAL CAOTROPICA ENTRE 1M A 8M, PARA OBTENER UN HOMOGENEIZADO DE CELULAS; Y ADICIONALMENTE: (a) ANADIR UN SURFACTANTE AL HOMOGENEIZADO CELULAR PARA EXTRAER EL ANTIGENO DE SUPERFICIE DE LA MEMBRANA CELULAR; (b) INCREMENTAR LA SOLUBILIDAD Y PROMOVER LA FORMACION DE PARTICULAS DEL ANTIGENO DE SUPERFICIE EN EL EXTRACTO OBTENIDO EN EL PASO (a), MEDIANTE ALCALINIZACION DEL EXTRACTO; (c) PRECIPITAR Y RETIRAR LOS RESTOS CELULARES, LIPIDOS Y PROTEINAS CONTAMINANTES DEL EXTRACTO TRATADO EN EL PASO (b), MEDIANTE ACIDIFICACION Y LUEGO CENTRIFUGACION DEL EXTRACTO, CON EL FIN DE OBTENER UNA SOLUCION QUE CONTENGA EL ANTIGENO DE SUPERFICIE; (d) JUNTAR LA SOLUCION OBTENIDA EN EL PASO (c) CON LA SILICA PARA ABSORBER EL ANTIGENO DE SUPERFICIE EN LA SILICA, LAVAR LAS PROTEINAS CONTAMINANTES Y RETIRAR EL ANTIGENO DE SUPERFICIE DE LA SILICA UTILIZANDO UN TAMPON PARA OBTENER UNA FRACCION DE ANTIGENO DE SUPERFICIE PURIFICADO; (e) SOMETER LA FRACCION DEL ANTIGENO DE SUPERFICIE PURIFICADO A CROMATOGRAFIA HIDROFOBICA EN COLUMNA; (f) PURIFICAR LAS FRACCIONES OBTENIDAS EN EL PASO (e) MEDIANTE CROMATOGRAFIA CON FILTRACION EN GEL, PARA OBTENER EL ANTIGENO DE SUPERFICIE PURO
Patent PE-18897-A1 (PE)
Title: Articulos fotocromicos estables a la temperatura y protegidos de la luz solar
Inventor: FLORENT FREDERIC HENRI
IPC: C08F220/30
Filed: 1995-12-11
Abstract: SE REFIERE A MATERIALES ORGANICOS TRANSPARENTES FOTOCROMICOS QUE CONSISTEN DE: 1) UNA MATRIZ POLIMERICA SELECCIONADA DEL GRUPO QUE CONSISTE DE A) HOMOPOLIMEROS DE DIMETACRILATO DE BISFENOL ETOXILADO DE FORMULA (I), EN LA QUE R ES H o CH3, Y m Y n SON INDEPENDIENTEMENTE 1 o 2, PREFERIBLEMENTE R ES H, Y m=n=2; Y B) COPOLIMEROS DE DIMETACRILATO DE BIFENOL ETOXILADO QUE CONTIENE A LO SUMO 30% EN PESO DE UN MONOMERO AROMATICO CON FUNCIONALIDAD VINILICA, ACRILICA O METOACRILICA; Y 2) POR LO MENOS UN AGENTE COLORANTE O UNA MEZCLA DE AGENTES COLORANTES SELECCIONADOS DEL GRUPO CONSISTENTE DE ESPIROOXACINAS, ESPIROPIRANOS Y CROMENOS, QUE OTORGA PROPIEDADES FOTOCROMICAS A DICHA MATRIZ, PREFERIBLEMENTE UNA MEZCLA DE AGENTES COLORANTES FOTOCROMICOS QUE OTORGUEN UN TINTE GRIS O MARRON AL VIDRIO EN ESTADO OSCURECIDO; SE REFIERE ADEMAS A UN PROCEDIMIENTO PARA PREPARAR EL MATERIAL ORGANICO FOTOCROMICO, QUE COMPRENDE LAS ETAPAS DE POLIMERIZAR LA MATRIZ POLIMERICA (1A o 1B) EN PRESENCIA DE UN INICIADOR DE UN RADICAL DIAZOICO Y EN AUSENCIA DE UN INICIADOR DE UN RADICAL PEROXIDO, SE INCORPORA ADEMAS UN AGENTE COLORANTE FOTOCROMICO (2) QUE PUEDE SER AGREGADO ANTES DE LA POLIMERIZACION O DESPUES DE LA POLIMERIZACION MEDIANTE UN PROCEDIMIENTO DE DIFUSION TERMICA. ES UTIL PARA LA PRODUCCION DE LENTES OFTALMICOS ORGANICOS FOTOCROMICOS
Patent PL-222970-A1 (PL)
IPC: C07D295/20
Filed: 1980-03-24
Abstract: The m-Cyanoalkoxy-phenylureas of the formula I    <IMAGE>  (I) wherein X is hydrogen or halogen, Y-O is a preferably branched-chain cyanoalkoxy group, and -NR1R2 is a primary, secondary or heterocyclic amino group, exhibit surprisingly good herbicidal activity against mono- and dicotyledonous plants, with a selective action in crops of maize, cereals, cotton and soya bean, and in the case of some of these compounds also in rape crops.
Patent PL-239510-A1 (PL)
Title: Process for manufacturing novel derivatives of bicycloheptane
IPC: C07C43/196
Filed: 1982-12-14
Abstract: A process for the preparation of a 2-exo-hydroxy-7-oxa-bicyclo[2.2.1]heptane, wherein the corresponding cis 3,4-expoxycyclohexanol is cyclised by treatment with an acid. Specific 2-exo-hydroxy-7-oxabicyclo[2.2.1]heptanes and intermediates thereof.
Patent PL-240765-A1 (PL)
Title: Method of obtaining iii-rd order butyl-alkyl ethers
Inventor: ANCILLOTTI FRANCESCO
IPC: B01J31/10
Filed: 1983-02-24
Abstract: In producing t-butyl alkyl ethers by etherifying with aliphatic alcohols isobutene in a hydrocarbon feedstock containing butadiene in addition to the isobutene, the increase in the pressure drop in the etherification reactor(s) that is due to the butadiene is eliminated by feeding the reactants from the bottom upwards. The reactors preferably contain an acidic ion-exchange resin catalyst.
Patent PL-251908-A1 (PL)
Title: Fungicid
IPC: C07C259/00
Filed: 1985-02-11
Abstract: The invention provides N-acyl amino acid derivatives of general formula <CHEM> salts and esters thereof, wherein X represents an oxygen or sulphur atom, R<1> is an optionally substituted alkyl, alkenyl, cycloalkyl, aryl or aralkyl group or an optionally substituted alkylamino, cycloalkylamino, arylamino or aralkylamino group, R<2> is an optionally substituted alkyl, cycloalkyl or aryl group and R<3> is a hydrogen atom or an optionally substituted alkyl, cycloalkyl or aryl group; processes for their preparation and their use as fungicides.
Patent PL-270367-A1 (PL)
Title: A catalyst and a method for manufacturing catalyst for polymerization ofunsaturated monomers and their mixes
Inventor: TURNER HOWARD W
IPC: C08F4/08
Filed: 1988-01-29
Abstract: A catalyst is prepared by combining a first compound consisting of a bis(cyclopentadienyl)zirconium compound having one of the following general formulae:Wherein:(A-Cp) is either (Cp)(Cp*) or Cp-A'-Cp* and Cp and Cp* are the same or different substituted or unsubstituted cyclopentadienyl radicals;A' is a covalent bridging group;L is an olefin, diolefin or aryne ligand;Zr is zirconium;X<sub>1</sub> and X<sub>2</sub> are, independently, selected from the group consisting of hydride radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organometalloid radicals and the like;X'<sub>1</sub> and X'<sub>2</sub> are joined and bound to the zirconium atom to form a metallacycle, in which the zirconium, X'<sub>1</sub> and X'<sub>2</sub> form a hydrocarbocyclic ring containing from about 3 to about 20 carbon atoms; andR is a substituent on one of the cyclopentadienyl radicals which is also bound to the zirconium atom. With a second compound comprising a cation capable of donating a proton and a bulky, labile anion containing a single boron atom, and a plurality of aromatic radicals capable of stabilizing the zirconium cation formally having a coordination number of 3 and a valence of +4 which is formed as a result of the combination, said second compound having the general formula:         [L'-H]<sup>+</sup>[BAr<sub>1</sub>Ar<sub>2</sub>X<sub>3</sub>X<sub>4</sub>]<sup>-</sup>Wherein:L' is a neutral Lewis base;H is a hydrogen atom;[L'-H]<sup>+</sup> is a Bronsted acid;B is boron in a valence state of 3;Ar<sub>1</sub> and Ar<sub>2</sub> are the same or different aromatic or substituted-aromatic hydrocarbon radicals which may be linked to each other through a stable bridging group; andX<sub>3</sub> and X<sub>4</sub> are, independently, selected from the group consisting of hydride radicals, halide radicals, hydrocarbyl radicals, substituted-hydrocarbyl radicals, organometalloid radicals and the like. Many of the catalysts thus formed are stable and isolable and may be recovered and stored. The catalysts may be preformed and then used to polymerize olefins, diolefins and/or acetylenically unsaturated compounds either alone or in combination with each other or with other monomers or the catalysts may be formed in situ during polymerization by adding the separate components to the polymerization reaction. The catalyst will be formed when the two components are combined in a suitable solvent or diluent at a temperature within the range from about -100°C to about 300°C. The catalysts thus prepared afford better control of polymer molecular weight and are not subject to equilibrium reversal. The catalysts thus produced are also less pyrophoric than the more conventional Ziegler-Natta olefin polymerization catalysts.
Patent PL-277425-A1 (PL)
Title: Apparatus for improving safety of dispensing suspension based aerosol preparations
IPC: B65D83/14
Filed: 1989-01-27
Abstract: By installation of a funnel-shaped element 5 and/or a covering plate 6 and/or a volume-reducing element 8, the reliability of dosing of apparatuses for the application of suspension-based aerosols which contain ingredients which are prone to sedimentation, is substantially increased. 
<IMAGE>
Patent PL-287708-A1 (PL)
Title: Method of obtaining pure dissimmetrically substituted ureas
Inventor: WOERTHER RUDOLF HELMUT
IPC: C07D277/20
Filed: 1990-11-09
Abstract: Process for the preparation of pure, unsymmetrically disubstituted ureas of the general formula   <IMAGE> I  in which R denotes a phenyl radical which is unsubstituted, or monosubstituted or polysubstituted by halogen atoms or alkyl, alkoxy, aryloxy or trifluoromethyl groups, an oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, benzoxazolyl or benzothiazolyl radical which is unsubstituted, or monosubstituted or polysubstituted by halogen atoms or alkyl, alkoxy or trifluoromethyl groups and R1 and R2 independently of one another denote a hydrogen atom or an alkyl group, where R1 and R2 are not simultaneously hydrogen or R1 and R2 together denote a butylene or pentylene group, by reaction of an N-alkyl- or N,N-dialkylurea with an unsubstituted or substituted arylamine or a heterocyclic amine in the presence of that amine which is already present in the starting material, the respective N-alkyl- or N,N-dialkylurea.
Patent PL-287907-A1 (PL)
Title: Method of obtaining novel derivatives of 6-aryl-5,6-dihydroimidazo(2,1-b) thiazole
IPC: C07D417/06
Filed: 1990-11-23
Abstract: Novel 6-aryl-5,6-dihydroimidazo[2,1-b]thiazole derivatives of formula   <CHEM>  wherein Ar is phenyl optionally substituted with halo, hydroxy, C1-6alkyloxy, mercapto, C1-6alkylthio, C1-6alkyl, nitro, amino, mono- and di(C1-6alkyl)amino, C1-6alkylcarbonylamino, arylcarbonylamino, C1-6alkylsulfonylamino, trifluoromethyl, cyano, aminocarbonyl, mono- and di(C1-6alkyl)aminocarbonyl, hydroxycarbonyl, C1-6alkyloxycarbonyl, carboxaldehyde or hydroxymethyl; pyridinyl; thienyl; furanyl or furanyl substituted with either C1-6alkyl or halo; R<1> and R<2> are C1-20alkyl, (C3-7cycloalkyl)C1-6alkyl, C3-7cycloalkyl, aryl or (aryl)C1-6alkyl; one of R<1> and R<2> may by hydrogen; or R<1> and R<2> taken together may form a C3-6alkanediyl radical; the acid addition salts and stereochemically isomeric forms thereof, said compounds having immunostimulating properties. Pharmaceutical compositions containing such compounds as active ingredient. Processes of preparing said novel compounds and pharmaceutical compositions.
Patent PL-293177-A1 (PL)
Title: Method of making tubes with multilayer heads and tube made thereby
Inventor: KELLER GERHARD
IPC: B29C43/18
Filed: 1991-03-26
Abstract: Collapsible tubes are produced from tubing by pressing plastic tubes into a laminar top whilst bonding this to the main tube. Each of the layers of the laminar top is produced by pressing a fresh plastic item in such a way that each raw item for the following layer is only fed in to the process when its predecessor layer has become stable.