baber/WOPTO huggingface dataset:
Patent CA-2257701-A1 (CA)
Inventor: ISMEIER JUERGEN R
IPC: C08F210/12
Filed: 1998-12-31
Abstract: A process for producing a copolymer of an isoolefin and at least one other comonomer comprising the step of polymerizing a reaction mixture comprising an isoolefin, a catalyst and at least one of a cycloconjugated multiolefin and an unconjugated cyclic olefin in the presence of an activator comprising a carbo cation producing species, a silica cation producing species and mixtures thereof. The process can be practiced using a solution polymerization approach or a slurry polymerization approach.  One of the main benefits achieved with the present invention is the conversion of the monomers over a shorter period of time and higher percent conversion than when the activator is not used.
Patent CA-2258978-A1 (CA)
Title: Wheel assembly for a roller skate
Inventor: CHANG CHUN-CHENG
IPC: A63C17/20
Filed: 1999-01-27
Abstract: A wheel assembly for a roller skate includes a pivotal seat having a first end secured to a base of the roller skate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat by a pin, and a wheel rotatably mounted to a second end of the wheel seat. A first elastic member has a first end attached to the pivotal seat and a second end attached to a mounting member on the wheel seat for biasing the wheel seat to a storage position in the base.      A stopping member includes a first end mounted to the pin and a second end through which the mounting member is extended. A second elastic member is mounted around the pin for biasing a stop of the stopping member to a position for releasably engaging with the wheel seat to prevent the wheel seat from moving into the storage position in the base when the wheel seat and the wheel are extended beyond the base for skating.
Patent CA-2260778-A1 (CA)
Title: Scratch-resistant anti-fog coating composition incorporating isocyanate-reactive surfactants
Inventor: LA CASSE ROBERT G
IPC: C09D5/00
Filed: 1997-07-21
Abstract: Anti-fog and scratch-resistant polyurethane compositions are disclosed which include an isocyanate prepolymer, a hydrophilic polyol and an isocyanate-reactive surfactant. The reaction product of the component produces enhanced properties having permanent anti-fog and scratch-resistant characteristics. These compositions may be used as coatings, films and self-supporting articles. Plastic substrates coated with these compositions may be subsequently subjected to thermoforming, such as molding and shaping, without loss of their properties.
Patent CA-2261465-A1 (CA)
Title: Apparatus for the cleaning of waste streams
Inventor: RUEMEKORF RAY SIRCY
IPC: C02F11/12
Filed: 1999-02-12
Abstract: Apparatus for cleaning waste streams containing water and contaminants comprises a distillation unit with a drainage pipe for removing distillate and delivering it to a processing apparatus and a second drainage pipe connected to a freeze concentration unit, that unit having a water drain and a drainage pipe for removing the freeze concentrate to the processing unit.
Patent CA-2262589-A1 (CA)
Title: Laminated glass resistant to uv radiation
Inventor: HELDT LAURY
IPC: C03C27/12
Filed: 1998-06-03
Abstract: The invention concerns a laminated glass comprising two external plates in rigid transparent material, and at least a polyester film provided between said external plates and a resin layer forming a flexible spacer between the two external plates, characterised in that the resin of the resin layer does not have, by itself, anti-UV filter and the polyester film contains at least one UV filter.
Patent CA-2263171-A1 (CA)
Inventor: SHERMAN GREG M
IPC: G06Q10/00
Filed: 1998-06-16
Abstract: A self-destructing document or e-mail messaging system is provided that automatically destroys documents or e-mail messages at a predetermined time by attaching a macro or virus to the document or e-mail message. A macro is created (220) and is attached (230) to file such as an e-mail message (280) or document (270) when it is created. The macro contains a portion of executable code or an executable program which instructs the computer to overwrite and/or delete the file to which the virus is attached at a desired time.
Patent CA-2263660-A1 (CA)
Title: Process for the polymerization of .alpha.-olefins, a catalyst used in the polymerization and its preparation
Inventor: ALA-HUIKKU SIRPA
IPC: C08F4/50
Filed: 1997-09-19
Abstract: In the polymerization of C3-C12-.alpha.-olefins, the activity of the catalyst and the isotacticity and molecular weight of the polymer product can be adjusted and improved in a controlled manner by a new process wherein: A) a catalyst system is prepared by bringing a support which comprises magnesium chloride, a derivative thereof or a reagent forming it into contact with at least titanium tetrachloride or a reagent forming it, in order to produce a titanated support; by bringing the titanated support into contact with at least a group 1, 2 or 13 metal compound which contains a C1-C10-alkyl and activates titanium tetrachloride to a catalytically active titanium group, in order to produce an activated support; and by bringing a substance selected from among the said support, titanated support and activated support into contact with at least one donor or a reagent forming it, in order to produce a catalyst system; B) polymerization is carried out using the catalyst system by bringing it into contact with at least a C3-C12-.alpha.-olefin, whereupon polyC3-C12-.alpha.-olefin chains are formed in the catalytically active titanium groups, and preferably by bringing the said catalyst system, the said C3-C12-.alpha.-olefin and the said poly-C3-C12-.alpha.-olefin chains into contact with hydrogen or some other similar chain transfer agent, whereupon a poly-C3-C12-.alpha.-olefin terminated with hydrogen or suchlike is formed. In the process the improvement is achieved so that, in step A), i) a first controlled amount of a less soluble internal donor and a second controlled amount of a more soluble internal donor are provided on the surface of the said support, titanated support or activated support, in order to produce an internal donoration product, and ii) the internal donoration product is brought into contact with at least one eluant eluting the more soluble internal donor and with at least one external donor or a reagent forming it, in order to produce an external donoration product, the catalyst system thereby formed having at least catalytically active titanium groups, the said first controlled amount of the less soluble internal donor and the said second controlled amount comprising external donor.
Patent CA-2264003-A1 (CA)
Title: Heat stabilized, flame retardant thermoplastic polymer compositions
Inventor: BOOKS JEFFREY T
IPC: C08K5/02
Filed: 1997-09-11
Abstract: Heat stabilized, flame retardant polymer compositions include a halogen based flame retardant such as hexabromocyclododecane, zeolite A heat stabilizer, and a transition metal compound such as a zinc stearate lubricant. The compositions are stable at high temperatures even when subjected to multiple heating processes and also have unique polymer foam forming properties when compared with compositions containing a different heat stabilizer.
Patent CA-2265629-A1 (CA)
Title: Blasting method
Inventor: YAMAMOTO MASAAKI
IPC: F42D1/00
Filed: 1997-11-04
Abstract: The present invention relates to a blasting method which comprises conducting a delay blast at a particular location; predicting time series data of a waveform of ground vibration or noise at a remote location to be generated by a hypothetical single-hole blast at the particular location using at least one of previous time series data of a waveform of ground vibration or noise generated by said delay blast and actually monitored at the remote location, and the corresponding previous actually applied initiation time series of said delay blast; computing a delay blasting initiation time series for a delay blasting, which provides a waveform of ground vibration or noise satisfying specific conditions, based on the above-predicted time series data of a single-hole blast; and carrying out a subsequent delay blast according to the computed delay blasting initiation time series.
Patent CA-2267564-A1 (CA)
Title: Method of manufacturing microalloyed structural steel
Inventor: DAVIS ROBERT F
IPC: C22C38/02
Filed: 1999-03-30
Abstract: A method of manufacturing microalloyed structural steels by rolling in a CSP plant or compact strip production plant, wherein the cast slab strand is supplied divided into rolling lengths through an equalizing furnace to a multiple-stand CSP rolling train and is continuously rolled in the rolling train into hot-rolled wide strip, wherein the strip is cooled in a cooling section and is reeled into coils, and wherein, for achieving optimum mechanical properties, a controlled structure development by thermomechanical rolling is carried out as the thin slab travels through the CSP plant. For manufacturing high-strength microalloyed structural steels with a yield point of >= 480 MPa, the available strengthening mechanisms are utilized in a complex manner in order to achieve an optimum property complex with respect to strength and toughness of the structural steels, by carrying out, in addition to the thermomechanical rolling with the method steps according to U.S. Patent Application Serial No. 09/095,338, a further influence on the structure of the thin slabs by changing the material composition in order to achieve a specific mixed crystal strengthening by an increased silicon content and/or a complex mixed crystal strengthening by an increased content of copper, chromium, nickel.
Patent CA-2268989-A1 (CA)
Title: An electric power generation system using fuel cells
Inventor: FELLOWS RICHARD GRIFFITH
IPC: H01M8/04
Filed: 1997-10-14
Abstract: In an electric power generation system (2), there is a stack (4) of fuel cells (6) each having an anode (10), electrolyte (8), and a cathode (12). Associated with the anodes (10) are anode passages divided into two groups, a first group formed by anode passages (14a) connected to an anode gas exhaust manifold (48a) and a second group formed by anode passages (14b) connected to an anode gas exhaust manifold (48b). Associated with the cathodes (12) are cathode passages divided into two groups, a first group formed by cathode passages (16b) connected to a cathode gas exhaust manifold (44b) and a second group formed by cathode passages (16a) connected to a cathode gas exhaust manifold (44a). The anode exhaust gas in manifold (48a) is wholly separate from that in manifold (48b) as is the cathode exhaust gas in manifold (44a) from that in manifold (44b). Fuel gas, for example methane from a supply (26) is fed via path (28) to an inlet manifold (30) supplying all the anode passages (14a and 14b) in which a reforming reaction takes place. Anode exhaust gas from the outlet manifold (48b) is supplied to the inlet manifold (30) to mix with the fuel gas to the anode passages. Oxidising gas such as air is fed via path (38) to an inlet manifold (40) supplying all the cathode passages (16a and 16b). Cathode exhaust gas from the outlet manifold (44a) is supplied by path (46a) to the oxidising gas supply path (38).
Patent CA-2271440-A1 (CA)
Inventor: WENZ BARRY
IPC: A61K35/14
Filed: 1997-12-19
Abstract: Methods and systems for processing biological fluid, using a phlebotomy device (1) to obtain separate portions of biological fluid, are disclosed.
Patent CA-2272284-A1 (CA)
Title: Compartmented tray
Inventor: BATES AARON
IPC: B65D5/50
Filed: 1997-11-20
Abstract: A multiple product container has at least one tubular compartment (16) disposed adjacent a tray compartment (12). The tubular compartment has at least one aperture (20) at its topmost portion for extraction of an elongated product and retention of the elongated product in an upright disposition. A  tear strip further facilitates removal of the elongated product from the tubular compartment.
Patent CA-2273228-A1 (CA)
Title: Device for stoma hygiene
Inventor: SAMUELSSON KARL-ERIK
IPC: A61H35/00
Filed: 1997-12-02
Abstract: People who have undergone intesti-nal surgery and have a protruding stoma that must be cleansed must generally man-age this with the aid of soap, water and compresses. This is an elaborate procedure.  The present invention aims at facilitating the cleansing procedure by placing a cover (1) comprising a shower (7) and an outlet (3), over the stoma.
Patent CA-2276279-A1 (CA)
Title: Metal fence post
Inventor: LINDSEY MICHAEL
IPC: E04H17/14
Filed: 1999-06-25
Abstract: The present invention includes an improved metal fence post for use with a wooden fence. The fence post has a U-shaped center section positioned between two flanges, and each of the flanges includes a plurality of holes extending along an edge. The fence post can be used as a line post, corner post or end post.  Preferably, the thickness of the sides of the U-shaped center section is about the same as the thickness of the wooden fence rails so that the fence posts are positioned in-line with the fence rails. Advantageously, the fence posts allow the fence boards to be attached to either or both sides of the rails.
Patent CA-2280856-A1 (CA)
Inventor: SAFIEH ERIC
IPC: A46B5/02
Filed: 1997-02-13
Abstract: A baby toothbrush for cleaning the primary teeth comprises a body with tufts of bristles attached to its tip, and a base. The body resembles the shape and form of a nipple. The entire body with tufts of bristles attached to its tip, passes through the opening on the outer surface of a baby bottle cap.   This abstract of the invention, baby toothbrush, is a manufacture. The base is secured between the inside of a baby bottle cap and the rim of a baby bottle opening whenever the baby bottle cap is screwed onto the baby bottle. A parent, guardian or baby may use the device to deliver the brush tip to the primary teeth to be cleaned.
Patent CA-2281720-A1 (CA)
Inventor: BULMAN JONATHAN MARK
IPC: G02B6/02
Filed: 1998-02-13
Abstract: A method of writing a Bragg grating in a photosensitive optical waveguide (40) is disclosed comprising utilising a single coherent beam of light (31) and a diffraction grating (32) to create two coherent working beams (33, 38) of light; positioning a plurality of reflective elements (35, 37) on each side of said waveguide; propagating the two working beams around said plurality of reflective elements, each of the beams being reflected by each of the reflective elements, so that the beams interfere at an initial predetermined position (45); and rotating at least one of the reflective elements on each side of the waveguide to simultaneously independently control the period of the interference pattern and position of the interference pattern in accordance with predetermined requirements so as to produce the grating structure in the photosensitive waveguide.
Patent CA-2283106-A1 (CA)
Title: Trackless gantry press system
Inventor: MARTIN MURRAY
IPC: B27F7/15
Filed: 1999-09-23
Abstract: Trackless gantry press apparatus are disclosed. The gantry press apparatus includes, in one embodiment, a plurality of truss setup tables configured to form a row of spaced truss setup tables. Each table includes wheel guides coupled at opposing ends and extending the width of the table. The guides are configured to be in substantial alignment with the guides coupled to adjacent tables. The apparatus also includes a press assembly for pressing nailing plates into truss members. The press assembly includes a substantially cylindrically shaped roller movably coupled to a substantially inverted U-shaped frame. The press assembly also includes at least four support wheels and at least four reaction pressure wheels coupled to each opposite end of the frame and configured so that at least three support wheels on each end of the press assembly are in contact with the wheel guides at all times as the press assembly traverses the spaces between the spaced setup tables. Additionally, a motor is operatively coupled to the roller and the drive wheels and configured so that the roller and the drive wheels rotate at the same speed.
Patent CA-2284218-A1 (CA)
Title: Substituted isoquinoline derivatives and their use as anticonvulsants
Inventor: EDWARDS PETER DAVID
IPC: A61P3/10
Filed: 1998-03-16
Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof; where Q is a monocyclic or bicyclic aryl or heteroaryl ring, R1 is hydrogen, C1-6alkyl (optionally substituted by hydroxy or C1-4alkoxy), C1-6alkenyl, C1-6alkynyl, C1-6alkylCO-, formyl, CF3CO- or C1-6alkylSO2-, R2 is hydrogen or up to three substituents selected from halogen, NO2, CN, N3, CF3O-, CF3S-, CF3CO-, trifluoromethyldiazirinyl, C1-6alkyl, C1-6alkenyl, C1-6alkynyl, C1-6perfluoroalkyl, C3-6cycloalkyl, C3-6cycloalkyl-C1-4alkyl-, C1-6alkylO-, C1-6alkylCO-, C3-6cycloalkylO-, C3-6cycloalkylCO-, C3-6cycloalkyl-C1-4alkylO-, C3-6cycloalkyl-C1-4alkylCO-, phenyl, phenoxy, benzyloxy, benzoyl, phenyl-C1-4alkyl-, C1-6alkylS-, C1-6alkylSO2-, (C1-4alkyl)2NSO2-, (C1-4alkyl)NHSO2-, (C1-4alkyl)2NCO-, (C1-4alkyl)NHCO- or CONH2; or -NR3R4 where R3 is hydroven or C1-4alkyl, and R4 is hydrogen, C1-4alkyl, formyl, -CO2C1-4alkyl or -COC1-4alkyl;  or two R2 groups together form a carbocyclic ring that is saturated or unsaturated and unsubstituted or substituted by -OH or =O; and X is hydrogen, halogen, C1-6alkoxy, C1-6alkyl, amino or trifluoroacetylamino, but when X is hydrogen excluding compounds in which R2 is 2-alkoxy and when X is hydrogen excluding the compounds N-(7-iodo-2-methyl-1,2,3,4-tetrahydroisoquinolin-5-yl) -5-benzoyl-2-methoxybenzamide, N-(7-iodo-1,2,3,4-tetrahydroisoquinolin-5-yl) -5-benzoyl-2-methoxybenzamide, N-(5-iodo-1,2,3,4-tetrahydroisoquinolin-7-yl) -5-benzoyl-2-methoxybenzamide, N-(5-iodo-1,2,3,4-tetrahydroisoquinolin-7-yl) -2-methoxy-4-trifluoromethyldiazirinylbenzamide, N-(5-iodo-1,2,3,4-tetrahydroisoquinolin-7-yl) -2-methoxy-5-trifluoromethyldiazirinylbenzamide, N-(7-iodo-1,2,3,4,-tetrahydroisoquinolin-5-yl) -2-methoxy-5-trifluoromethyldiazirinylbenzamide et N-(8-fluoro-2-methyl-1,2,3,4-tetrahydroisoquinolin-5-yl) -4-t-butyl-2-methoxybenzamide, are useful inter alia in the treatment and prophylaxis of epilepsy.
Patent CA-2285575-A1 (CA)
Title: Improved triple effect absorption apparatus and method
Inventor: ROCKENFELLER UWE
IPC: C09K5/04
Filed: 1998-03-25
Abstract: The third stage generator (G3) of a triple effect absorption apparatus may be operated at vapor pressures below 25 psig and more preferably below 15 psig by using a metal salt concentration in the absorption fluid in the third stage generator (G3) of at least 66.5 %, by weight.
Patent CA-2285928-A1 (CA)
Title: Allergen formulation comprising tyrosine and 3 de-o-acylated monophosphoryl lipid a
Inventor: WHEELER ALAN WORLAND
IPC: A61K39/39
Filed: 1998-04-03
Abstract: A pharmaceutical composition comprising tyrosine, an optionally modified allergen, and 3-DMPL, is useful in the prevention and treatment of allergy.
Patent CA-2286300-A1 (CA)
Title: Mobile diversity handover and branch control
Inventor: UCHIYAMA NOBUHIDE
IPC: H04W36/18
Filed: 1998-04-24
Abstract: When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number.  If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover.  Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.
Patent CA-2286714-A1 (CA)
Title: Gripping device for positioning sheet-like objects
Inventor: MARTTILA TOM
IPC: C25C7/02
Filed: 1998-04-27
Abstract: The invention relates to a mechanically positioned gripping device which is connected to a transfer apparatus for transferring sheet-like objects, such as electrodes, from one position to another, said transfer apparatus comprising members for transferring a loading member from one position to another and members connected to said loading member for moving the load in an essentially vertical position. According to the invention, in order to position the gripping device (5) with respect to the unloading and loading position (8, 14), the gripping device (5) is attached to a control frame (4) installed in between the transfer apparatus loading member (1) and the gripping device (5) by means of at least one control member (11), so that while the control frame (4) is positioned in the unloading and loading position (8, 14), the gripping device (5) is movable in relation to the control frame (4) in order to position the gripping device (5) in the unloading and loading position (8, 14).
Patent CA-2289163-A1 (CA)
Inventor: MEYER G RICHARD
IPC: C09K5/10
Filed: 1999-11-08
Abstract: This invention is directed to a zwitterionic water-soluble imine of formula: (see above formula)] wherein R1 is heterocyclyl, heteroaryl, aryl, arylalkyl, cycloalkyl or lower alkyl; R2 is alkyl, alkenyl, aminoalkyl, diaminoalkyl, hydroxyalkyl, alkoxyalkyl, thioalkyl, alkylthioalkyl or arylalkyl; R3 is hydrogen and lower alkyl, or R1 and R3 taken together form a cycloalkyl; p is 2, 3, 4 or 5; and Z is CO2-, OCO2-, SO3-, OSO3-, PO3- or OPO3- which are useful as ferrous metal corrosion inhibitors.
Patent CA-2289923-A1 (CA)
Title: Two-part stream dispensing for high viscosity materials
Inventor: DEFILLIPI MICHAEL E
IPC: B01F15/06
Filed: 1998-05-12
Abstract: A robot arm mounted apparatus for high speed streaming of high viscosity, two-part adhesive onto a workpiece. The apparatus employs a shortened, temperature-conditioned mixing tube (38) and a compact, end effector package of dispense metering equipment associated directly with the mixing tube (38) on the end of the robot arm, rather than mounted remotely as in prior art systems. In a preferred form a pressurized cylinder (60), displacement rods (64) and chambers, dispense metering valves (66) and shortened, temperature-conditioned mixing tube (38) are connected to one another directly in serial fashion on the end of the robot arm. The mixing tube (38) is preferably modified with a removable, damage-resistant nozzle (41) designed especially for streaming.
Patent CA-2290045-A1 (CA)
Inventor: SIEBERT MIKE
IPC: H03H21/00
Filed: 1999-11-17
Abstract: In a method of processing an input signal, the input signal is divided into a plurality of subbands with the aid of bank of complex valued, single-sided subband filters. The single-sided frequency spectra of the resulting subbands make aliasing negligible at near twice the critical downsampling rates.