baber/WOPTO huggingface dataset:
Patent CA-2280511-C (CA)
Title: Production of 1,3-diaminopentane by hydrogenation of 3-aminopentanenitrile
Inventor: SNYDER JAY LESLIE
IPC: C07C209/48
Filed: 1998-03-27
Granted: 2007-01-09
Abstract: A process for the hydrogenation of 3-aminopentanenitrile to produce 1,3- diaminopentane using a Raney.RTM. cobalt catalyst promoted with chromium nickel molybdenum, iron, manganese or mixtures thereof. Performing the reaction in the presence of aqueous caustic (e.g., alkali metal hydroxide) enhances the selectivity to 1,3-diaminopentane.</SDO AB>
Patent CA-2280773-C (CA)
Inventor: SCHEIN PHILIP S
IPC: A61K31/145
Filed: 1998-02-11
Granted: 2008-07-22
Abstract: La présente invention concerne des procédés d'administration de composés de phosphorothioate d'aminoalkyle et/ou d'aminoalkylthiol à des patients, permettant de réduire ou d'amoindrir considérablement les effets secondaires fâcheux ou indésirables des composés, par rapport à une administration classique par voie intraveineuse.
Patent CA-2288299-C (CA)
Title: Matrice organique pour ensemble de reflecteurs acoustiques
Inventor: MATHEW BARRY C
IPC: G06F3/041
Filed: 1998-04-09
Granted: 2006-11-07
Abstract: L'invention concerne un système à capteur tactile, comprenant un substrat (12) capable de propager des ondes acoustiques de surface; et un ensemble d'éléments réfléchissants (5, 6, 7, 8) formé sur ce substrat et ayant une pluralité d'éléments réfléchissants, chacun de ces éléments réfléchissant une portion d'une onde acoustique de surface incidente. L'ensemble est constitué d'une matrice organique, de préférence chimiquement liée au substrat, et qui est de préférence une résine thermodurcie. De préférence encore, ce type d'ensemble est stable aux changements de teneur en humidité entre 0 et 60 % d'humidité relative à des températures comprises entre 0 et 50  DEG C. On peut aussi utiliser la matrice en question dans un capteur d'humidité ou un capteur chimique.
Patent CA-2291618-C (CA)
Title: Spray unit
Inventor: IWATA RISA
IPC: B65D83/44
Filed: 1999-03-30
Granted: 2004-12-28
Abstract: A spray unit that is attached to an opening at a neck portion of a container for spraying a liquid material in the container, including: a cylinder unit composed of a large-diameter air cylinder and a small-diameter liquid cylinder having a valve hole and an operating member. The operating member is composed of a large-diameter cylindrical piston, a stem having a check valve, and a press-down head having a spray nozzle hole. The liquid is to be sprayed when the operating member is pressed down. When the operating member is pressed down, a liquid flow-out path and an air ejecting path come together via a small gap inside the spray nozzle hole. The spray unit further includes a flow rate control valve which is composed of a valve seat provided at an upper face of a valve hole of the liquid cylinder and a valve body arranged above the valve seat to be seated on or released from the valve seat. At least one of the valve seat and the valve body is provided with a small flow path that is not closed even when the valve body sits on the valve seat and that always communicates the interior of the container with the interior of the liquid cylinder, and the flow rate control valve is provided with a large flow path that is opened when the valve body is released from the valve seat and closed when the valve body sits on the valve seat. The sectional area of the small flow path is smaller than an open area of the valve hole of the air cylinder and that of the valve hole of the check valve provided inside the stem. The combination overcomes the delay in ejecting the liquid.
Patent CA-2296266-C (CA)
Title: Sanitary napkin
Inventor: OTA AKIKO
IPC: A61F13/511
Filed: 2000-01-19
Granted: 2004-03-09
Abstract: A sanitary napkin including a middle region and lateral regions lying adjacent the middle region, and a transversely middle region A of the sanitary napkin 1 being configured to have a rigidity lower than that of the lateral regions B, B.
Patent CA-2299967-C (CA)
Title: Taxoid compound and method for producing the same
Inventor: NAKANISHI KATSUYOSHI
IPC: C07D305/14
Filed: 2000-02-29
Granted: 2005-04-19
Abstract: A taxoid compound represented by general formula (I) (see formula I) where the symbols R1, R2, R3, R4, Bz, and Ac have specified meanings.      Also, a method for producing the taxoid derivative from a baccatin derivative having a .beta.-ketoester group at the 13-position by transesterification and a method for producing taxoid compound such as paclitaxel from the taxoid derivative under mild condition are disclosed.
Patent CA-2307825-C (CA)
Inventor: WRIGHT WILLIAM J
IPC: B65H29/58
Filed: 2000-05-09
Granted: 2007-03-20
Abstract: A method and device for collating a number of sheets, serially and separately entering an entry point, into a stack at an exiting point without slowing down or pausing the sheets. The method and device, according to the present invention, provide a plurality of traveling paths with different path lengths to connect the entry point and exiting point, and use controlling devices to control the paths such that a sheet entering the entry point will travel a shorter path than the preceding sheet. It is preferred that the path length difference between any two adjacent paths is the same. The path length difference can be smaller than or equal to the length of the sheets. When the path length difference is equal to the sheet length, all sheets travel through different paths will arrive the exiting point concurrently.
Patent CA-2310876-C (CA)
Inventor: OLSON JOHN A
IPC: G01D1/16
Filed: 2000-06-06
Granted: 2007-08-14
Abstract: A summing module (10) and method for interfacing a compound meter with two metering signals to a plurality of different output devices for displaying or retransmitting meter data includes an enclosure (20), a summing circuit (32), networks (41) for setting a ratio between the two metering signals before they are summed, and a ratio between one of the input signals and an output signal, and output subcircuits (60, 65) for providing signals compatible with at least two meter data output devices.  The module (10) also provides for testing of the inputs for short circuits and open circuits and passing the result on to the output.
Patent CA-2314221-C (CA)
Inventor: WOODBURN RUSSELL C
IPC: B29C48/07
Filed: 1998-12-17
Granted: 2007-10-16
Abstract: L'invention concerne un système d'extrusion à extrudeur simple (30) ou extrudeurs en tandem (102 et 103), et à mélangeur-refroidisseur (104), qui permet d'extruder un produit d'extrusion expansible à travers une filière (37) dans une enceinte close. Ledit produit est mis en forme et calibré à l'intérieur de l'enceinte. La filière (37) est montée à l'extrémité d'un tube de gel (120) qui s'étend à travers un système d'étanchéité et pénètre dans une cloison fixe (36) formant l'extrémité amont de l'enceinte (40). Le tube de gel (120) et le mélangeur-refroidisseur (104) sont montés sur un chariot mobile, dont le mouvement permet de régler la filière (37) par rapport à l'équipement de mise en forme et de calibrage installé dans l'enceinte. Le mélangeur-refroidisseur (104) offre une plage étroite déterminée de valeurs de viscosité uniforme du produit fondu à la filière (37), en fonction de la taille et de la densité du produit. L'utilisation de ce mélangeur-refroidisseur (104) permet de fabriquer des articles de grande taille, de faible densité, à structure cellulaire uniforme, et sans effondrement cellulaire ni gradient de densité, bien que le produit soit soumis à des changements de pression et de température au moment où, en immersion, il sort de l'enceinte pour venir au contact de l'atmosphère.
Patent CA-2315181-C (CA)
Title: Multilayered tampon cover
Inventor: COLE ROBERT
IPC: A61F13/20
Filed: 1998-12-22
Granted: 2007-07-31
Abstract: The present invention relates to a tampon (10) having an absorbent structure (14) and a multilayered cover (12) substantially enclosing the absorbent structure. The cover has an outer layer (20) capable of retaining liquid and an inner layer (22) disposed between the outer layer and the absorbent structure. The inner layer creates a controlled interruption of fluid flow between the outer layer and the absorbent structure. This interruption allows the outer layer retains sufficient liquid to minimize vaginal wall drying prior to saturation of the absorbent structure.
Patent CA-2320244-C (CA)
Title: Method for producing aqueous polymer dispersions containing colorants
Inventor: MATHAUER KLEMENS
IPC: C07D471/06
Filed: 1999-01-13
Granted: 2009-11-10
Abstract: The invention relates to a method for producing aqueous polymer dispersions containing colorants by radical aqueous emulsion polymerisation of ethylenically unsaturated monomers in the presence of radical-forming initiators. At least a proportion of the monomers is used in the form of an oil-in-water emulsion E1 whose disperse phase contains at least one. oil-soluble colorant. The inventive method is characterised in that the disperse phase of E1 is essentially made up of colorant-containing monomer droplets with a diameter < 500 nm. The invention also relates to perylene colorants of general formula (III) in accordance with claim 35, and to colorant-containing preparations which contain the inventive colorant-containing polymers and pigment- containing preparations which contain an inventive polymer with an optical brightener.
Patent CA-2320375-C (CA)
Title: Contour extraction method and apparatus
Inventor: KIYUNA TOMOHARU
IPC: G06T5/00
Filed: 2000-09-21
Granted: 2007-07-10
Abstract: A contour extraction method and apparatus is disclosed by which a contour can be extracted automatically at a high speed with a high degree of accuracy without the necessity to set a threshold value explicitly. In the contour extraction method and apparatus, from picture image data of a picture image including an image of a body which makes an object of contour extraction, region belonging probabilities with which individual points of the picture image belong to regions are calculated not based on values themselves of the image data but based on attributes of the points of the picture image. Then, the regions to which the individual points of the picture image belong are delimited using the region belonging probabilities, and then a boundary between the regions is extracted as a contour.
Patent CA-2321792-C (CA)
Title: Nitroxyl derivatives with glycidyl or alkylcarbonyl groups as initiators for radical polymerisation
Inventor: FUSO FRANCESCO
IPC: C07D211/46
Filed: 1999-02-26
Granted: 2009-12-29
Abstract: The present invention relates to a compound of formula (Ia) or (Ib) (see formula Ia) (see formula Ib) wherein the R1, are each independently of one another hydrogen, halogen, NO2 , cyano, -CONR5R6, -(R9)COOR4, -C(O)-R7, -OR8, -SR8, -NHR8, -N(R8)2, carbamoyl, di(C1 - C18alkyl)carbamoyl, -C(=NR5)(NHR6); unsubstituted C1-C18alkyl, C2-C18alkenyl, C2-C18alkynyl, C7-C9phenylalkyl, C 3- C12cycloalkyl or C2-C12heterocycloalkyl; or C1-C18alkyl, C2-C18alkenyl, C2-C18 alkynyl, C7-C9phenylalkyl, C3-C12cycloalk yl or C2- C12heterocycloalkyl, which are substituted by NO2, halogen, amino, hydroxy, cyano, carboxy, C1-C4alkoxy, C1-C4alkylthio, C1-C4alkylamino or di(C1-C4alkyl)amino; or phenyl, naphthyl, which are unsubstituted or substituted by C1-C4alkyl, C1- C4alkoxy, C1- C4alkylthio, halogen, cyano, hydroxy, carboxy, C1-C4alkylamino or di(C1- C4alkyl)amino; R4 is hydrogen, C1-C18alkyl, phenyl, an alkali metal cation or a tetraalkylammonium cation; R5 and R6 are hydrogen, C1-C18alkyl, C2-C18alkyl which is substituted by at least one hydroxy group or, taken together, form a C2-C12alkylene bridge or a C2-C12-alkylene bridge interrupted by at least one O or/and NR8 atom; R7 is hydrogen, C1-C18alkyl or phenyl; R8 is hydrogen, C1-C18alkyl or C2-C18alkyl which is substituted by at least one hydroxy group; R9 isC1-C12alkylene or a direct bond; or all R1 form together the residue of a polycyclic cycloaliphatic ring syst em or a polycyclic heterocycloaliphatic ring system with at least one di- or trivalent nitrogen atom; the R2 are independently of each other phenyl or C1-C6alkyl or two together with the linking carbon atom form a C5-C6cycloalkyl group; A is a divalent group required to form a cyclic 5-, 6- or 7-membered ring an d R3 is a radical of formula (II) (see formula II) wherein X is phenyl, naphthyl or biphenyl, which are unsubstituted or substituted by NO2, halogen, amino, hydroxy, cyano, carboxy, C1-C4alkoxy, C1-C4alkylthio, C1-C4alkylamino or di(C1--C4alkyl)amino; the R12 are independently of each other H or CH3; D is a group (see formula III), or a group C(O)-R13; R13 is C1-C18alkyl and m is a number from 1 to 4. Further subjects of the invention are a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a glycidyl or alkylcarbonyl functional nitroxide initiator compound of formula (Ia) or (Ib), a process for polymerizing ethylenically unsaturated monomers, and the use of glycidyl and alkylcarbonyl functional nitroxide initiators for radical polymerization.
Patent CA-2327977-C (CA)
Inventor: KICH ROLF
IPC: H01R24/38
Filed: 2000-12-08
Granted: 2003-11-11
Abstract: A common interface (10) for a PIM sensitive diplexing filter (30) is provided in a non- contacting, or isolated, configuration while providing PIM reliability, ESD conduction and thermal conduction, making it ideal for high power space applications. The common interface (10) is a one- piece construction of a diplexed, or multiplexed, coaxial, or squareax, transmission line that is constructed with a direct non-contacting (34, 36), or connectionless, interface. Terminations (26, 28) connect the inner conductor (20) to the outer conductor (12) of the interface (10) making the device one integral piece yet providing the necessary isolation through non-contacting interface with a PIM sensitive device and terminations (26, 28) that provide thermal and ESD conduction necessary for PIM reliablity.
Patent CA-2330186-C (CA)
Inventor: CHAPMAN ANDREW PAUL
IPC: C07K16/28
Filed: 1999-06-08
Granted: 2008-11-04
Abstract: L'invention concerne des fragments d'anticorps bivalents dont chacun possède un ou plusieurs ponts intercaténaires qui contiennent un polymère synthétique ou naturel choisi parmi polyalkylène, polyalcénylène, polyoxyalkylène ou polysaccharide. Chaque pont peut se présenter comme un résidu d'un réactif de réticulation homo- ou hétérobifonctionnel et sert à relier entre elles deux chaînes lourdes dans chaque fragment d'anticorps à travers les atomes de soufre des résidus de cystéine présents dans les chaînes. Chaque fragment peut être attaché à un ou à plusieurs ligands ou molécules effectrices et utilisé pour la thérapie ou le diagnostic car il manifeste de bien meilleures propriétés de liaison et/ou pharmacocinétiques que d'autres fragments d'anticorps qui possèdent le même nombre et type de molécules polymères mais dans lesquelles les molécules polymères sont attachées de façon aléatoire.
Patent CA-2333042-C (CA)
Inventor: YEAP TET HIN
IPC: H04B3/30
Filed: 1999-05-18
Granted: 2009-06-02
Abstract: A noise suppression circuit for a communications channel (10) comprises a hybrid device (11) coupled to the channel for providing a differential output signal corresponding to a received signal. A delay unit (12) delays the differential signal by a suitable amount to allow for the generation and subtraction of a noise estimate. A summing device (13) extracts a digital common mode signal from the channel, and a noise estimation unit (16) provides a common mode noise estimate signal in dependence upon a history of the common mode signal over a predetermined period of time and over a plurality of frequency bands. The common mode noise estimate signal is combined subtractively (19) with the delayed differential signal to cancel common mode noise elements of the delayed differential signal. The noise estimation unit may comprise an analysis filter bank (20) for producing a plurality of subband signals (S1-S M), each at a different one of a plurality of different frequencies, a plurality of noise detection circuits (23 1-23 M), each for processing a respective one of the plurality of subband signals to provide a component of the common mode noise estimate signal, and a synthesis filter bank (24) for processing the common mode noise signal components to provide the noise estimate signal.
Patent CA-2339241-C (CA)
Title: Soil granulates with controlled active ingredient release (cr soil granulates)
Inventor: STADLER REINHOLD
IPC: A01N43/828
Filed: 1999-07-28
Granted: 2009-07-21
Abstract: The invention relates to controlled-release soil granulates which can be obtained by depositing a coating containing active ingredients onto a solid carrier on a fluidized bed, a method for producing said soil granulates and a method for combating phytopathogenic fungi, undesirable vegetation growth or undesirable insect infestation and/or for regulating vegetation growth by means of the controlled-release soil granulates provided for in the invention.
Patent CA-2340267-C (CA)
Title: Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties containing said additives
Inventor: THOMPSON JEFFREY
IPC: C01B33/44
Filed: 2001-03-09
Granted: 2009-08-25
Abstract: Conventional organophilic clays, when used as rheological additives in oil based invert muds, display marked viscosity loses in the mud when these muds are heated much above 350° F, whereas muds prepared according to the present invention are dramatically more viscosity stable at temperatures through 500.DELTA. F. The present invention relates to the discovery of oil based invert emulsion drilling fluids that provides more stable drilling fluid viscosity and anti-settling performance over varying temperatures when compared to conventional fluids containing organoclays. As a result, the inventive fluids of this invention are ideal candidates for high temperature applications. This invention in another aspect of this invention is a process for improving the rheological properties of oil well drilling fluids particularly useful for oil- based invert emulsion types of drilling fluids. The new process uses as a rheological viscosifer for such fluids as a specific organoclay which when added to a drilling fluid at from about 0.5 and 5% by weight creates an inventive drilling fluid composition less sensitive to the very hot temperatures found in the drilling hole, and in the long stem of drilling pipe.
Patent CA-2341355-C (CA)
Inventor: VON EYSMONDT JORG
IPC: A61K38/28
Filed: 1999-08-11
Granted: 2009-04-07
Abstract: The invention relates to an improved method for chromatographically purifying insulins. The invention is characterized in that a pressure-stable, organic, and polymeric chromatographic material is used as a stationary phase, and in that the mobile phase contains at least one organic solvent which can be mixed with water, and contains at least one buffering agent. In addition, the invention is characterized in that the pH value ranges from 7 to 11.
Patent CA-2346862-C (CA)
Title: Anionic-cationic polyion complexes comprising zwitterionic monomer component
Inventor: STRATFORD PETER WILLIAM
IPC: C08L101/00
Filed: 1999-11-12
Granted: 2009-09-29
Abstract: A polyion complex (PIC) is formed of an anionic soluble polymer formed from ethylenically unsaturated monomers including at least one anionic or monomer and a cationic soluble polymer formed from ethylenically unsaturated monomer including at least one cationic monomer, in which the monomers used to form at least one of the polymers comprise a zwitterionic monomer and in which the monomers used to form at least one of the polymers include non-ionic monomer, preferably C1-24 alkyl(meth)acrylate, in which the overall ratio of anionic groups to cationic groups in the PIC is in the range 1.5:1 to 1:1.5, and in which the polymers are combined in ratios to provide a PIC in which there are units derived from zwitterionic monomer in an amount in the range 1 to 70 mole % based on total monomer derived units in the PIC and there are units derived from non-ionic monomer in an amount in the range 0 to 60 mole % based on total monomer derived units in the PIC. The PIC is preferably swollen in water and is a flowable gel. The zwitterionic monomer is preferably 2-(methacyloyloxyethyl)-2'-(trimethylammoniumethyl)phosphate inner salt.
Patent CA-2353268-C (CA)
Inventor: TAKAHASHI SHIN
IPC: C09J175/04
Filed: 2001-07-19
Granted: 2009-02-03
Abstract: An adhesive, a flocked weather strip, and a process for producing the weather strip. The adhesive is a moisture-curing reactive hot-melt adhesive for weather strip flocking, which comprises as the main component a urethane prepolymer containing isocyanate groups, the adhesive having a dielectric constant at 25°C of 3 to 10 and a melting point of 40°C to 150°C . The flockedweather strip comprises a substrate and piles flocked thereon through the moisture-curing reactive hot-melt adhesive. The process for producing the flocked weather strip comprises thermally melting the moisture-curing reactive hot-melt adhesive, applying the melt to a substrate in a thickness of 40 to 150 µm, electrostatically flocking piles in the resulting layer of the molten adhesive, cooling the adhesive to solidify the same and fix the flocks to the substrate, and then cutting the substrate into a given size. The adhesive is suitable for use in the flocking of a weather strip substrate and enables piles flocked in a melt of the adhesive to tenaciously bond to the weather strip substrate in a short period of time. The weather strip has excellent sliding resistance and is especially suitable for use in motor vehicles.
Patent CA-2359543-C (CA)
Inventor: CHEN WEN CHOU
IPC: F23N1/00
Filed: 2001-10-22
Granted: 2007-07-17
Abstract: A gas burner control system includes a control unit formed of a valve seat and main valve assembly and at least one solenoid valve and installed in the burner body and connected to the electronic igniter, and an operation unit formed of a power switch and at least one flame intensity control switch and provided outside the burner body and connected to the control unit and the electronic igniter. Switching on the power switch opens the main valve assembly and drives the electronic igniter to ignite ignition flame. Switching on one flame intensity control valve opens the corresponding solenoid valve for producing the desired intensity of burner flame.
Patent CA-2361996-C (CA)
Title: Device for sterilizing a chamber
Inventor: ROSSELL JORDI
IPC: B08B3/10
Filed: 1999-02-03
Granted: 2007-06-05
Abstract: A device for cleaning and sterilizing the inside of a chamber (1), comprising a supply (2) of sterilizing liquid for said chamber (1) and means for inducing variations in the pressure, amplitude, frequency and the gradient of said variations in the sterilizing liquid, whereby said means are adapted in such a way that cavitation occurs inside the liquid. The means inducing said pressure variations include a liquid column between the chamber and a switching organ, whereby the chamber (1) can be cyclically connected to a depression (7), whereby the value thereof is related to the amplitude or respectively to the atmospheric pressure.