baber/WOPTO huggingface dataset:
Patent CA-2173896-A1 (CA)
Title: Continuous in-situ process for upgrading heavy oil using aqueous base
Inventor: BRONS GLEN BARRY
IPC: C10G19/08
Filed: 1996-04-11
Abstract: The  present  invention  relates  to  a  continuous  in-situ process for  the  removal  of organically  bound  sulfur  existing  as mercaptans, sulfides  and  thiophenes  comprising  the  steps  of  (a) contacting a heavy oil with aqueous sodium hydroxide at a  temperature of about 380°C  to about 450°C  for a time  sufficient to form  sodium sulfide, and (b) steam stripping the  sodium sulfide of step (a) at  a temperature sufficient  to  convert  said  sodium  sulfide  to  sodium hydroxide and recirculating the sodium hydroxide from step (b) back to step (a)  and  removing  hydrogen  sulfide and  the  metals  from  the organically bound metal complex  of the sodium  sulfide to convert  it back to sodium hydroxide, in which case the sulfur may be recovered as H2S rather than the metal sulfide.  Optionally, molecular hydrogen may be added  in the  first  step.  The  present  invention is  useful  in removing organically  bound  sulfur that  has  been recognized  to  be difficult to remove,  such as thiophenes.   Beneficially, the  process also removes  other  heteroatoms  (nitrogen  and  oxygen)  and  metals (vanadium, iron,  nickel) and  reduces asphaltene  content  (n-heptane insolubles), micro concarbon residue, coke, 975°F fractions, TGA fixed carbon, average molecular weight, density and viscosity.
Patent CA-2174332-A1 (CA)
Inventor: MAYER HORST
IPC: C07D251/16
Filed: 1994-10-10
Abstract: Described is a method of preparing unsymmetrically substituted triazines of formula (I), in which R1 is hydrogen, methyl or ethyl, R2 and R3, independently of each other, are an optionally substituted hydrocarbon group, by reacting a cyanoguanidine of formula (II) with a carboxylic acid derivative in the presence of an alcohol of formula (III), the method being characterized in that the reaction is carried out with a carboxylic acid ester of formula (IV), in which R3 is as defined above and R4 is an optionally substituted hydrocarbon group, in the presence of a base or a carboxylic acid amide selected from the group comprising N,N-dialkylformamide, N,N-dialkylacetamide and N-methylpyrrolidone and in the presence of a salt or a salt-like compound of one of the elements magnesium, calcium, aluminium, zinc, copper, iron, cobalt, nickel and chromium.
Patent CA-2180057-A1 (CA)
Inventor: SHARMA SANDEEP
IPC: C09D11/03
Filed: 1996-06-27
Abstract: The present invention is directed to a paste printing ink containing a suitable solvent, a hard resin, pigment and other typical additives, the improvement comprising the addition of a small amount of a surfactant to the printing ink to enable the ink to be water washable on clean-up.  The invention is also directed to a method for cleaning the printing apparatus with an aqueous cleaning solution, the method comprises utilizing a conventional printing ink to which a small amount of surfactant has been added in combination with an acidic fountain solution and washing the printing apparatus with a aqueous washing solution at a pH of between about 8.5 and 13.5, the washing solution containing detergent and a small amount of surfactant.
Patent CA-2181207-A1 (CA)
Title: Polymeric stencil for use in electronic assemblies and method of making same
Inventor: CARROLL KEITH C
IPC: H05K3/34
Filed: 1996-07-15
Abstract: A method of manufacturing a polymeric stencil, and in particular a polyimide stencil, for use in solder paste printing of electronic circuit boards involves assembling the polymeric stencil to a frame structure of metallic material such as aluminum.  The polymeric stencil is secured tautly across the frame structure. The polymeric stencil typically has a thickness in the range of 0.005 to 0.012 inches and lends itself to being readily cut by low power lasers. The preferred method of cutting land patterns from the stencil utilizes a CO2 laser. The process lends itself to pre-fabrication of the frame and stencil prior to cutting to reduce the turn around time to produce a stencil once an order is taken. The polymeric stencil can be readily cleaned with a mild detergent after laser cutting.
Patent CA-2182982-A1 (CA)
Title: Bifurcated endoluminal prosthesis
Inventor: GOICOECHEA GEORGE
IPC: A61F2/07
Filed: 1995-02-06
Abstract: The invention comprises: an introducer for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method for delivering into the vasculature a straight or bifurcated stent or prosthesis; a method of treating an angeological disease using a bifurcated stent; an endoluminal stent having perpendicular hoop members, each hoop member formed of wire in a sinuous configuration, at least some of juxtaposed apices in neighboring hoops being secured to one another, such stents also forming axially aligned segments in straight stents, and segments of bifurcated stents in particular embodiments. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markets.
Patent CA-2183789-A1 (CA)
Inventor: BETHOUX OLIVIER
IPC: H02M3/07
Filed: 1995-12-28
Abstract: The multilevel convertor includes a voltage source (SE), a current source (C) and a succession of controlled switching cells (CL1,CL2...,CLn) each having switch pairs (T1,T`1,T2,T`2...,Tn,T`n) controlling the switching of capacitors (C1,C2...,Cn). The capacitors have nominally charge voltages proportional to their row in the convertor. The convertor has in parallel with the current source (C), a RLC filter circuit (CF). The filter circuit is designed to preferentially dissipate, at least in part, the energy of any component having a frequency included in a frequency band extending from the fundamental frequency of the voltage applied to the current source to a frequency equal to n times the convertor frequency, called the decoupling frequency, n is the number of convertor stages. These two frequencies, fundamental and decoupling, are not included in the frequency band.
Patent CA-2184822-A1 (CA)
Inventor: FRANCOIS MARC KAREL JOZEF
IPC: C07D311/00
Filed: 1995-04-10
Abstract: The present invention relates to a composition comprising an antimigraine compound of formula (I) and chitosan, which is particularly suited for intranasal administration. Process for preparing said composition, its use as a medicine and a nasal spray device, especially a unidose nasal spray device containing said composition.
Patent CA-2186059-A1 (CA)
Title: Process for the hydrogenolysis of c-o and c=o bonds in organic substances
Inventor: LANSINK ROTGERINK HANS
IPC: C07C1/20
Filed: 1996-09-20
Abstract: The invention relates to a process for hydrogenolysis of C-O and C=O bonds in organic substances by reaction with hydrogen in the presence of a catalyst system which contains at least one metal from groups VIII and/or IB of the Periodic System of elements on a support consisting of at least one solid acid with an acid activity index of at least 90 %.
Patent CA-2186097-A1 (CA)
Title: Dripless drive resistance assemblies for caulk dispensing devices
Inventor: CHANG PETER J Y
IPC: B05C17/01
Filed: 1996-09-20
Abstract: Simple and economical embodiments of a drip-stop resistance assembly for caulking guns incorporating a resistance clip, or alternatively, an elastic grommet or constricted spring. The drip-stop assembly may be used with various manually-operated caulking guns including those with metal enclosures and single piece molded plastic open frames, and with various types of plunger shafts including those with a circular or hexagonal cross-section, or ratchet teeth. The drip-stop assembly includes a resistance clip formed of resilient steel wire or the like, and bent or cast in the form of an annular yoke for encircling the plunger shaft and providing frictional resistance against sliding. The resistance clip may be inserted onto the plunger shaft (from above or below the housing) at various positions along the shaft. A back-plate formed by a conventional washer, or angle-bracket is inserted on the plunger shaft and is spaced from the resistance clip for allowing the latter to frictionally slide a short distance. An elastic grommet and constricted spring are also shown as substitutes for the resistance clip. All of the illustrated drip-stop assemblies provide an initial momentary release feature to terminate the bead of caulk upon initial release of the trigger, reduce blow-back, and prevent inadvertent retraction of the plunger shaft. The assemblies are all simple and inexpensive to manufacture, yet highly effective. Its simplicity allows them to be manufactured OEM or retrofit for minimal additional cost.
Patent CA-2187149-A1 (CA)
Inventor: CHEN ROBERT W P
IPC: B62K15/00
Filed: 1996-10-04
Abstract: A foldable bicycle frame comprises a front frame and a rear frame. The rear frame has a rear down fork, a rear top fork, a seat tube, and a horizontal shaft tube. The front frame has a top tube, a down tube, and a head tube. The rear frame further has an upright shaft tube located by the horizontal shaft tube. The top tube of the front frame is curved and fastened at the rear end thereof with a top seat tube coaxial with the seat tube of the rear frame. The down tube of the front frame is fastened pivotally at the rear end thereof with the upright shaft tube of the rear frame so as to enable the front frame and the rear frame to swivel in relation to each other.
Patent CA-2188618-A1 (CA)
Inventor: KADOTA AKIRA
IPC: C12Q1/26
Filed: 1996-10-23
Abstract: Disclosed are a method for quantitative determination of bilirubin and a reagent for the method, which are useful in clinical examinations.  The method comprises subjecting the bilirubin in a sample to coexist with ascorbate oxidase and a reaction promoter in aqueous medium to thereby oxidize the bilirubin, measuring the change in absorbance of the aqueous medium and comparing the change in absorbance with a calibration curve.  The reagent comprises ascorbate oxidase and a reaction promoter.
Patent CA-2191147-A1 (CA)
Title: Speaker system
Inventor: LEDOUX PATRICE
IPC: H04R1/28
Filed: 1996-11-25
Abstract: Attempts to achieve fidelity of sound produced by speaker systems has led to often large, relatively complicated and expensive speaker cabinets, particularly for reproducing sound in the lower acoustic frequencies.  A simple solution to the problem is a speaker assembly including a housing divided by a partition into a speaker chamber containing a speaker and a sound outlet chamber.  The sound outlet chamber contains a sound outlet box remote from an opening in the partition connecting the speaker chamber to the sound outlet chamber.  A sound outlet tube extends through the box and one wall of the housing.  The interior of the box and at least a portion of the area around the box are filled with sand or another solid material for eliminating vibration or at least reducing vibration to a minimum.
Patent CA-2192898-A1 (CA)
Title: Method for treatment of waste material
Inventor: GUYOT JEAN NOEL
IPC: C05F9/00
Filed: 1996-12-13
Abstract: A method of treating waste materials such as city or animal sewage which may contain toxic chemicals includes supplying the waste materials in slurry form using a dispensing machine in the field to a fibrous crop material so that the waste materials, water and toxic chemicals are taken up by the fibrous materials in the plant to avoid toxic materials collecting in the soil.     The amount of nutrients in the waste material including phosphorous and nitrogen are measured. The volume of materials supplied to the plant is controlled upon the phosphorous level. The amount of nitrogen can be supplemented on the go from a separate tank on the dispensing machine.
Patent CA-2195561-A1 (CA)
Inventor: BACKES THOMAS WITNER
IPC: C11D3/08
Filed: 1995-07-12
Abstract: On décrit un détergent en bloc, solide et sans phosphate, qui contient un sel de métal alcalin d'un acide nitrilotriacétique, un acide, un métal alcalin contenant des hydroxydes et des silicates, et un métal alcalin contenant des carbonates et des sulfates. On décrit aussi un procédé qui permet de produire ce détergent en bloc.
Patent CA-2195699-A1 (CA)
Title: Organoclay compositions manufactured with organic acid derived ester quaternary ammonium compounds, their preparation and non-aqueous fluid systems containing such compositions
Inventor: MARDIS WILBUR
IPC: C09D7/43
Filed: 1997-01-22
Abstract: A novel organophilic clay comprising the reaction product of: (a) a smectite-type clay; and (b) a quaternary ammonium compound or compounds selected from the group consisting of: (see above formula) wherein R1 is an unsaturated alkyl-ester group having 8 to 30 carbon atoms as described below and R2, R3 and R4 are independently selected from the group consisting of (i) R1, (ii) long chain linear or branched alkyl (including methyl), aliphatic or aromatic groups having 1 to 30 carbon atoms (such groups can also include hydroxylated groups); (iii) aralkyl groups, which are benzyl and substituted benzyl moieties, including such groups having fused ring moieties having linear chains or branches of 1 to 30 carbon atoms; (iv) aryl groups such as phenyl and substituted phenyl including fused ring aromatic substituents; (v) beta, gamma unsaturated groups having six or less carbon atoms or hydroxyalkyl groups having 2 to 6 carbon atoms; and (vi) hydrogen and M- is an anion selected from the group consisting of chloride, methylsulfate, acetate, iodide and bromide. The organophilic clay is used in a non-aqueous fluid system such as paints, inks, and coatings to provide improved rheological properties.
Patent CA-2198374-A1 (CA)
Inventor: FISCHER E BARRY
IPC: A24B3/18
Filed: 1995-08-24
Abstract: L'invention se rapporte à un procédé et à un appareil d'expansion du tabac qui comprend une source de gaz de colonne, un conduit d'acheminement oblong et plat (20) communiquant avec la source de gaz, un chargeur de tabac (18) situé en un point le long du conduit d'acheminement (20) et un séparateur (22) récupérant le tabac de l'appareil d'expansion. Le chargeur de tabac (18) permet d'introduire le tabac uniformément dans la largeur du conduit d'acheminement oblong (20). L'appareil améliore le pouvoir de remplissage du tabac traité et peut fonctionner à des vitesses de production très élevées qui entraînent une réduction des bris de tabac, ce qui permet d'améliorer la production de tabac.
Patent CA-2199832-A1 (CA)
Title: Anti-sickling beta-globin protein, compositions and methods for treating sickle cell disease
Inventor: LEBOULCH PHILIPPE
IPC: A61K38/00
Filed: 1995-09-19
Abstract: Gene therapy methods and compositions for high level expression of anti-sickling beta-globin proteins in erythroid cells for treating Sickle Cell Disease are described.
Patent CA-2203030-A1 (CA)
Inventor: AOKI SHUJI
IPC: B65B69/00
Filed: 1997-04-17
Abstract: A flexible container includes a main body having a sealable input opening in an upper portion thereof, and a sleeve extending from a lower portion of the main body. The flexible container has a connector formed at a distal end of the sleeve to be connected to a discharge unit of a particulate material transmitting apparatus in a sealed condition. A method and apparatus for transmitting a particulate material use this flexible container, and a discharge unit for the flexible container.
Patent CA-2203381-A1 (CA)
Title: Feed system for particulate material and transition hopper therefor
Inventor: DODGE DENNIS W
IPC: B29B13/02
Filed: 1995-11-07
Abstract: A feed system for conveying loose pieces of a coarse particulate or pelletized hot melt material such as adhesives from a storage container to a melt tank (16). The system includes a transition hopper (14) having insulation (83) between the hopper (14) and the melt tank (16) to prevent premature melting of the loose adhesive pellets or pieces before they pass into the melt tank (16). An air supply for providing air pressure to the interior of the hopper can be attached to the hopper to prevent vapors from rising from the hot melt tank into the transition hopper and a vent opening (91) for exhausting vapors from the hot melt tank (16) can be located in the top of the melt tank (16).
Patent CA-2203955-A1 (CA)
Inventor: HULIBA DAVID A
IPC: B60T13/14
Filed: 1997-04-29
Abstract: A filter assembly is provided for a continuous ink jet printing system, the continuous ink jet printing system having a fluid system and an ink jet printhead . The filter assembly comprises a filter situated in-line with the ink jet printhead and surrounded by a seal . A quick disconnect fitting is provided for capturing the filter housed within the seal to provide an integral quick disconnect filter assembly .
Patent CA-2204950-A1 (CA)
Title: Determination du phenomene de changement de phase de la matiere a l'aide de la technologie de la resonance acoustique
Inventor: SIVARAMAN ALWARAPPA
IPC: G01N29/02
Filed: 1997-05-09
Abstract: Un appareil cylindrique à haute pression avec des transducteurs soniques à ses deux extrémités a été mis au point pour définir avec précision le phénomène de transition de phase de la matière contenue dans le cylindre. Une impulsion sonique dans la plage audible présente des caractéristiques spécifiques de divers types de transition de phase en traversant le récipient cylindrique contenant des échantillons de la matière qui subit le phénomène de changement de phase. L'appareil et la technologie que décrit la présente invention ont été mis au point pour des applications en comportement de phase dans le domaine du génie chimique, de l'industrie du pétrole et de la technologie des réservoirs, et ont été analysés et évalués en ce qui a trait au point de bulle, au point de rosée, à la précipitation de l'asphaltène, à la formation de cire et au développement d'hydrates.
Patent CA-2205205-A1 (CA)
Title: Polyolefin composition and molded article thereof
Inventor: WAKUMOTO HIROSHI
IPC: C08L23/12
Filed: 1996-09-13
Abstract: A polyolefin composition which comprises 45 to 90 parts by weight of a propylene polymer (A) having a [] value of 0.5 to 10 dl/g and a Tm value of 100 ~C or above and comprising 100 to 80 mole % of propylene units, 0 to 10 mole % of ethylene units and 0 to 15 mole % of C4-C12 .alpha.-olefin units, and 5 to 40 parts by weight of an ethylene-.alpha.-olefin copolymer (B) having a [] value of 0.5 to 10 dl/g and comprising 70 to 95 mole % of ethylene units and 5 to 30 mole % of C4-C12 .alpha.-olefin units, and 2 to 25 parts by weight of a propylene-.alpha.-olefin-ethylene terpolymer (C) having a [] value of 0.5 to 10 dl/g and comprising 40 to 77 mole % of propylene units, 20 to 40 mole %  of C4-C12 .alpha.-olefin units and 2 to 20 mole % of ethylene units (with the total amount of the components (A, B and C) being 100 parts by weight) and which is excellent in flexibility, transparency, mechanical strengths and heat resistance.
Patent CA-2205537-A1 (CA)
Inventor: BERGHOLTZ LARS
IPC: B65D1/26
Filed: 1995-09-21
Abstract: A stack (31) of cup-shaped containers (2,4,6) coaxially inserted one inside another is described, each with a side wall (32) on one end of which a base (33) is arranged, and on the other end a flange (1), wherein the container (2,4,6) is composed of a flexible material and the flange (1) is substantially stiffer than the side wall (32) and the base (33).   In order to make such a stack (31) more easy to manufacture and to take apart, it is provided according to the invention that apart from the outermost cup-shaped container (4), each inner container (2) is partially radially folded, and that the degree of folding gradually increases towards the innermost cup-shaped container (2).
Patent CA-2205604-A1 (CA)
Title: Snack food container and coin bank
Inventor: WILSON WARREN J
IPC: B65D55/08
Filed: 1997-05-16
Abstract: A snack food container comprises a blow molded extruded transparent polyvinyl chloride housing having solid wall  and base segments,  a token slot, and an opening through which a solid particulate snack food product is loaded into and removed from the housing.  A releasable seal on an interior surface of the housing covers the token slot. The sealed cap, token slot seal and housing maintain the food product in a sealed state prior to the cap being removed and/or the seal being released.   The housing is used as a token bank by inserting tokens through the released token slot after the food product has been removed from the housing and the seal has been released from the token slot.  In one embodiment  the  token  slot  is  a  pressure  sensitive adhesive strip adhesively attached to the housing, and in a second embodiment the slot is in the cap.  The housing contains visible promotional material unrelated to the snack food.
Patent CA-2206628-A1 (CA)
Title: Method for forming a cohort for use in identification of an individual
Inventor: LAVERTY WILLIAM
IPC: G10L25/24
Filed: 1995-12-01
Abstract: A method of forming a cohort for use in identification of an individual by comparing a model of characteristics of the individual, such as a model of utterances, with models of the cohort including a model for the client in respect of whom it is desired to test whether the individual is identifiable.  Models of at least a substantial number (preferably all) of the population excluding the client are tested to determine whether they meet an acceptance threshold test as to identify with a model for the client. Then, from each meeting the threshold test, it is determined whether those models are distributed so as to present at least a substantial probability that models for non-members of the population spaced from the client model in all directions will each be closer to a member of the cohort, excluding the client, than to the client. If that probability is less than a predetermined value, a selection is made from the population of another cohort member which will reduce that probability. Alternatively, if the mentioned probability is less than the predetermined value, a "phantom" model is generated for inclusion in the population and which will reduce that probability. The method may employ both the described selection and "phantom" generation techniques.
Patent CA-2208076-A1 (CA)
Title: Polymeric resistance heating element
Inventor: ECKMAN CHARLES M
IPC: H05B1/02
Filed: 1995-12-28
Abstract: Polymeric heating elements (10) and water heaters containing these elements utilize heating elements (10) which include an electrically conductive resistance material (14) capable of heating fluid when energized.  The elements (14) are helically wound and insulated and protected by a polymer layer (30) integrally disposed over the resistance material (14). The elements (10) are lightweight, inexpensive, and minimize galvanic corrosion and lime deposition without sacrificing heating capacity.
Patent CA-2209775-A1 (CA)
Inventor: CHOU TING-CHAO
IPC: A61K31/495
Filed: 1996-11-15
Abstract: The present invention provides a compound having structure (I) wherein R1, R6 and R7 are independently hydrogen, OH, NH2. SH, halogen, C1-C9 linear or branched chain alkyl, alkylmercapto, alkylamino, dialkylamino, alkoxy, phenyl, etc; wherein R0 and R2 are independently hydrogen, OH, linear or branched chain alkyl, -CR3R3-CH(O)CH2, -CR3R3-CH2CH3, -CR3R3-CH2CH2OH, -CR3R3-CH(OH)R4 or -CR3R3-CH-CHR4, wherein R3 and R4 are independently hydrogen, halogen, C1-C9 linear or branched chain alkyl, phenyl, etc; wherein R5 is hydrogen, C1-C9 linear or branched chain alkyl, phenyl, etc; an wherein R8 is hydrogen C1-C9 linear or branched chain acyl, benzoyl, etc; with the proviso that (a) when R2 is -CR3R3-CH(O)CH2, -CR3R3-CH2CH3, -CR3R3-CH2CH2OH, -CR3R3-CH(OH)R4 or -CR3R3-CH=CHR4, then R0 is hydrogen; (b) when R0 is -CR3R3-CH(O)CH2, -CR3R3-CH2CH3, -CR3R3-CH2CH2OH, -CR3R3-CH(OH)R4 or -CR3R3-CH=CHR4, then R2 is OH; and (c) when (i) R0 or R2 is -CR3R3-CH=CHR4, (ii) R3 and R5 are CH3 and (iii) R4 is hydrogen, then R1, R6 and R7 are not all hydrogen. Also provided are related compounds and compositions, and methods of inhibiting the growth of multidrug resistant cells by means of MDR reversal, collateral sensitivity and quantitative synergism.