baber/WOPTO huggingface dataset:
Patent CA-2156288-A1 (CA)
Title: Glycerol derivative, device and pharmaceutical composition
Inventor: YANO JUNICHI
IPC: C07D265/30
Filed: 1994-02-17
Abstract: The object of the invention is to provide a lipid device functionally equivalent to the so-called cationic liposome and of lesser toxicity and a lipid or the like as a component of the device.      The compound of the invention includes but is not limited to 3-O-(4-dimethylaminobutanoyl)-1,2-O-dioleylglycerol, 3-O-(2-dimethyl-aminoethyl)carbamoyl-1,2-O-dioleylglycerol, 3-O-(2-diethylaminoethyl) carbamoyl-1,2-O-dioleylglycerol and 2-O-(2-diethylaminoethyl) carbamoyl-1,3-O-dioleoylglycerol. The device of the invention comprises such a lipid and a phospholipid.      By administering a double-stranded RNA, for instance, together with the device of the invention, the double-stranded RNA can be safely delivered to the site of action.
Patent CA-2156856-A1 (CA)
Title: Method for drilling and cementing a well
Inventor: NAHM JAMES JANG WOO
IPC: C04B7/153
Filed: 1994-02-23
Abstract: A cementitious slurry containing blast furnace slag and a surfactant is utilized to displace an oil based drilling fluid without causing contamination by the blast furnace slag cement. In a specific embodiment, a cementitious slurry comprising blast furnace slag, a surfactant and water is used in the cementing of an annulus surrounding a casing or liner wherein a synthetic oil-containing drilling fluid is present.
Patent CA-2157404-A1 (CA)
Title: Topographical sheet material and method
Inventor: JOHNSON MICHEAL A
IPC: C09J7/10
Filed: 1994-03-24
Abstract: A latent, thermosettable, melt-flowable sheet material comprising at least two layers, one of which is expandable and flowable, and the other of which flows to encapsulate the expandable layer between it and a substrate to which the sheet material has been adhered. A latent, thermosettable, melt-flowable sheet material which can be cured to provide a weatherable layer is also disclosed. Still further, a method for imparting topographical or protective features to a substrate such a metal joint of an  automobile body is disclosed.
Patent CA-2158696-A1 (CA)
Title: Loose-fill insulation having irregularly shaped glass fibers
Inventor: EVANS MICHAEL E
IPC: D04H3/03
Filed: 1995-09-20
Abstract: A loose-fill insulation product (30 having irregularly shaped glass fibers (18, 100) is provided. The loose-fill insulation product (30) shows improved recovery, lower thermal conductivity, and requires lower product densities than prior art loose-fill insulation at equivalent fiber diameters.
Patent CA-2162469-A1 (CA)
Inventor: BROWN ANTHONY KEVIN DALE
IPC: H03B5/20
Filed: 1994-05-04
Abstract: A gyrator based resonator comprises first and second differential amplifiers cross coupled to form a quadrature phase voltage controlled oscillator. The differential amplifier circuits include matched transistor pairs and associated transconductance adjusting components to control the resonant frequency of the resonator. Transconductance delay and admittance loss elements are also provided and these elements serve to control the loop gain of the resonator. A loop gain greater than unity results in the resonator oscillating while a loop gain less than unity produces a bandpass filter. A resonator having gain less than unity may be slaved to a similar resonator having gain adjusted to be greater than unity thus creating a low noise oscillator and tracking filter.
Patent CA-2163548-A1 (CA)
Inventor: DULL LAWRENCE C
IPC: B65D65/46
Filed: 1994-06-02
Abstract: Système de conteneurisation et conteneurs convenant particulièrement au stockage, à l'emballage et à l'expédition de produits dangereux ou toxiques tels que des produits chimiques à usage agricole. Le système de conteneurisation comprend ledit produit chimique sous forme de gel, de solide ou de liquide contenu dans un sac soluble dans l'eau. Le sac est composé d'un film coextrudé comportant au moins deux couches séparées d'alcool polyvinylique combinées immédiatement après l'extrusion à l'état fondu et coulant. Le film se caractérise en ce qu'il ne présente aucune démarcation d'interface.
Patent CA-2170253-A1 (CA)
Inventor: ABRAMS MICHAEL JEFFREY
IPC: A61K33/24
Filed: 1994-08-19
Abstract: New pharmaceutical compositions and pharmaceutical compositions comprising metal complexes have activity against diseases caused by or related to overproduction or localised high concentration of nitric oxide in the body.
Patent CA-2170822-A1 (CA)
Title: Process for the synthesis of .alpha.-substituted acrylic acids and their application
Inventor: DUHAMEL PIERRE
IPC: C07C319/20
Filed: 1996-03-01
Abstract: Process  for  the  synthesis  of  .alpha.-substituted acrylic acids  of  general  formula   (I)   and  their application to the synthesis of N-(mercaptoacyl)aminoacid derivatives of formula (II).               (I)                            (II)
Patent CA-2171786-A1 (CA)
Inventor: ANDERSON JOHN E
IPC: G02B17/08
Filed: 1996-03-14
Abstract: A method and apparatus for directing electromagnetic energy may be used as a di-rected energy weapon, illuminator for an active sensor and/or guidance system, counter-measure, or to ignite a fusion weapon; as a beam expander; for power transmission by a beam; propulsion by a beam or inertial fusion; power generation from inertial fusion; telecommunication; or computer hardware. The method and apparatus direct electromag-netic energy from a source made up of an area or volume as opposed to a point. Electro-magnetic energy of at least one wavelength is emitted first towards a defined surface and thence to a defining surface. Each surface is either everywhere reflective or refractive, and each point on the defined surface lies at a point of intersection of a pair of defining rays radiating from different points on or within the source. Each defining ray is of a defining wavelength. Each defining ray is reflected or refracted by the defined surface and is then incident to the same side of the defining surface at a respective further point where it is reflected or refracted through a respective predetermined directed angle. The directed angle of a half-tangent to the defining surface which is co-planar with the two defining rays and lies at any intermediate point on the defining surface between the two respective further points is intermediate between the directed angles of two similarly orientated half-tangents which are co-planar with the two defining rays and lie at the respective further points. A further ray from said source and of said defining wavelength passing through said point of intersection and also any one of such intermediate points is reflected or refracted by the defining surface through a directed angle intermediate between the two respective predetermined directed angles or approximately equal to one of them. The accuracy with which the electromagnetic energy is directed is improved by the provision of a plurality of stages wherein each stage includes a defining surface together with a defined surface and the electromagnetic energy output from a stage forms the input to a further stage.
Patent CA-2173151-A1 (CA)
Title: Dental handpiece with disposable drill head assembly
Inventor: REEVES GLORIA
IPC: A61C1/05
Filed: 1994-09-29
Abstract: The dental handpiece (11) includes a disposable head assembly (15) and a reusable handle (13) which are removably coupled together. The head assembly (15) includes a housing (73) formed of plastic material forming a cavity (75) in which is located a turbine operated drill assembly (17) with a drill burr (101) extending out of a lower opening. The upper wall (73T) of the housing (73) is formed against the top of the drill assembly (17) to permanently fix the drill assembly in the cavity (75) such that the bearing mechanism for rotatably supporting the turbine (81) and drill burr (101) is integral with the head assembly (15). The head assembly (15) also has a neck with a cavity (107) for removably receiving the proboscis (45) of the handle (13) by way of a rear opening. The handle (13) supplies and removes air to and from the head cavity (75) for operating the turbine (81) and also supplies air, water and light from the proboscis (45) which are directed toward the burr (101) by way of an outlet opening (113). The handle (13) is snap-locked to the head assembly (15) when the proboscis (45) is located in the neck cavity (107). A protuberance (231) extends from the proboscis (45) for snap-locking the handle (13) and the head assembly (15) together. The lock mechanism (401) of the head assembly (15) may be broken away to remove the head assembly (15) from the handle (13) after which the head can be discarded. ~
Patent CA-2174667-A1 (CA)
Title: Processes for the treatment of acidic liquors and for the production of commercial products thereby
Inventor: CLARKE NEIL
IPC: C02F1/52
Filed: 1994-10-11
Abstract: A process for the treatment of aqueous acidic liquors containing dissolved aluminium and/oriron compounds to produce an aluminium and/or iron sulphate water-treatment product is characterized by the combination of steps comprising contacting the liquor with a basic material capable of reacting with the dissolved aluminium and/or iron compound to precipitate aluminium and/or iron values, separating the precipitate in the form of a cake or slurry from the remaining liquor, treating the cake or slurry with sulphuric acid to re-dissolve aluminium and/or iron values and to produce a solution of aluminium and/or iron sulphate and separating suspended solid matter from the solution. The liquor may be a waste product from industrial processes or may be a mine effluent and the process avoids the need to dispose of these to waste. Where the liquor is derived from the acid activation of an aluminosiliceous mineral, the product contains dissolved silica, and a substantial quality of an oil bleaching agent is produced as a byproduct. The product may be mixed with a low molecular weight cationic polymer to give an enhanced flocculation performance.
Patent CA-2176479-A1 (CA)
Inventor: GRINBERG DENNIS NEIL
IPC: H03M7/40
Filed: 1994-11-14
Abstract: Methodology and concomitant circuitry for compacting an incoming data stream into an outgoing compacted data stream utilize a plurality of memories or lists. The incoming data stream is partitioned into a sequence of tokens. A primary memory (3262) stores each token, with the most recently appearing token occupying the top rank in the list. A secondary memory (3282) stores the location in the primary memory of each of a subset of tokens. The compacted data stream is generated as a coded representation of the token itself, the position of the token in the primary memory, or the position in secondary memory of the location of the token in primary memory. A tertiary list may also be employed to generate a coded representation of the position in the tertiary list of the secondary list. Searching of the lists is effected with a hashing function. Updating of the lists utilizes tree splaying.
Patent CA-2178171-A1 (CA)
Inventor: PANTALEO TERESE A
IPC: A01N59/06
Filed: 1996-06-04
Abstract: A water preservative composition for use in water-filled products, such as water-filled toys.  More particularly, the present invention is a safe and effective water preservative composition providing long term protection against bacteria and fungi growth at divergent temperatures in water-filled toys made of plastic materials.  The water preservative composition of the present invention comprises water, diazolidinyl urea, methyl p-hydrooxybenzoate, propyl p-hydrooxybenzoate, propylene glycol, triethylene glycol, benzyl alcohol and methylchloroisothiazolinone (5-chloro-2-methyl-3-(2H)-isothiazolone and 2-methyl-3-(2H)-isothiazolone), magnesium chloride and magnesium nitrate.
Patent CA-2179606-A1 (CA)
Title: Macrophage inflammatory proteins-3, -4 and -1.gamma.
Inventor: LI HAODONG
IPC: A61K48/00
Filed: 1994-06-28
Abstract: There are disclosed a human macrophage inflammatory protein-3, a human macrophage inflammatory protein-4 and a human macrophage inflammatory protein1.gamma. polypeptides and DNA (RNA) encoding such polypeptides. There is also provided a procedure for producing such polypeptides by recombinant techniques and for producing antibodies against such polypeptides. In the invention there is also provided antagonist/inhibitors against such polypeptides which inhibit the functioning of such polypeptides. Another aspect of the invention provides a combination of the polypeptides of the present invention and a suitable pharmaceutical carrier for providing a therapeutically effective amount of the polypeptides for the treatment of various associated diseases.
Patent CA-2180703-A1 (CA)
Title: Fast-dissolving galanthamine hydrobromide tablet
Inventor: GILIS PAUL MARIE VICTOR
IPC: A61K9/20
Filed: 1996-07-08
Abstract: The present invention is concerned with a fast-dissolving tablet for oral administration comprising as an active ingredient a therapeutically effective amount of galanthamine hydrobromide (1:1) and a pharmaceutically acceptable carrier, characterized in that said carrier comprises a spray-dried mixture of lactose monohydrate and micro-crystalline cellulose (75: 25) as a diluent, and a disintegrant; and with a direct compression process of preparing such fast-dissolving tablets.
Patent CA-2183906-A1 (CA)
Inventor: CAMPBELL CURTIS B
IPC: C10N10/04
Filed: 1996-08-22
Abstract: An overbased phenate stearate is produced by overbasing a mixture that comprises sulfurized phenate, metal stearate (such as calcium stearate), at least one solvent, calcium hydroxide, and water, by contacting the mixture with carbon dioxide in the presence of an alkyl polyhydric alcohol, such as ethylene glycol. The level of agitation is maintained at a level sufficiently high so that all solids are suspended over the length of the overbasing step. The polyhydric alcohol to water ratio is maintained sufficiently high so that the ratio is at least 4:1 at the end of the overbasing step. The overbased mixture is stripped to produce an overbased phenate stearate having less than 0.10 vol.% fine sediments.
Patent CA-2184477-A1 (CA)
Inventor: CLAPP CLARENCE P
IPC: A23D7/01
Filed: 1995-03-17
Abstract: A foodstuffs parting composition for coating cooking surfaces composed of a water-in-oil emulsion prepared from lecithin, an edible oil component, an emulsifying agent selected from the group consisting of one or more of monocalcium phosphate, calcium chloride dihydrate, dibasic magnesium phosphate trihydrate and potassium chloride, and water.  The lecithin is preferably acetylated lecithin, and the preferred emulsifying agent is monocalcium phosphate and is present in an amount of at least about 1 percent by weight of the composition. In alternative embodiments, mono- and diglycerides, including, e.g., phosphated mono- and diglycerides, are used as substitutes for the lecithin.  Medium chain triglycerides are sometimes used with or in place of the edible oil as part of the edible oil component.
Patent CA-2184733-A1 (CA)
Title: Spin encapsulation apparatus and method of use
Inventor: DORIAN RANDEL E
IPC: A61K35/12
Filed: 1995-03-30
Abstract: A coating apparatus includes a rotary cup (12) for forming beads (14) and projecting them radially outwardly, and one or more collection basins (16) surrounding the bead forming cup (12). The cup (12) is adjustably rotatable about its central axis, and the collection basins (16) are independently rotatable and positioned to collect the beads (14) projected from the cup (12). The coating apparatus further includes an elevation adjustment system for axially adjusting the alignment of the cup (12) with respect to the selected collection basins (16). The rotational speeds of the cup (12) and the collection basins (16) are selected so as to minimize the impact of the beads (14) against a gelling solution (24) in the collection basins (16).
Patent CA-2185365-A1 (CA)
Inventor: CZERWIEC RICHARD M
IPC: H04N7/173
Filed: 1996-09-11
Abstract: A high-integrity video distribution signal is provided unidirectionally from one network node to another network node according to a standard digital communications format (ATM; SONET; DS3) that defines digital signal communications in a bidirectional manner with equal bandwidth in each direction.  The one network node providing the video distribution signal simultaneously monitors the video distribution signal, e.g. by a modified loopback (in conjunction with optical power monitoring) for providing a performance monitoring function indicative only of performance of the one network node that provides the video distribution signal, wherein the another network node receiving the video distribution signal performs its own performance monitoring and communicates its performance in the network in a manner other than in the bidirectional manner defined in the standard, wherein the end result is providing the same level of performance monitoring and fault isolation that presently exists in a bidirectional system.
Patent CA-2187891-A1 (CA)
Title: Device for board manufacture
Inventor: SCHEDIN KURT
IPC: B27N3/08
Filed: 1995-04-03
Abstract: A device compress-ing and processing a mate-rial mat at the manufacture of board of lignocellulosic mate-rial, comprising rotary com-pression rolls. At least on of the compression rolls (2) is formed with a perforated shell surface (6) and an ax-ial duct system (7) located in-side of the shell surface. A slide shoe (8) abuts sealingly the end wall of the roll (2) for injection of the process-ing medium to the mat via the duct system (7) in a restricted sector (9) of the roll (2) where the mat is compressed.
Patent CA-2188466-A1 (CA)
Title: Felt treatment - inorganic deposit prevention by spray treatment
Inventor: DUFFY ROBERT JAMES
IPC: D21F1/30
Filed: 1995-04-06
Abstract: This invention relates to an improved press felt conditioning treatment which controls the deposition of particulate substances in papermachine felts. The treatment comprises applying to the felt during paper production an effective inhibiting amount of an aqueous solution containing a pH control agent and a nonionic or anionic surfactant. The surfactant is preferably selected from the group consisting of dodecyl benzene sulfonates, lauryl ether sulfates, octyl phenol ethoxylates, nonyl phenol ethoxylates, dodecyl phenol ethoxylates, primary alcohol ethoxylates, secondary alcohol ethoxylates, ethoxylated polyoxypropylene glycols, dialkyl phenol ethoxylates, polyoxyethylene sorbitan monoester, linear alkylbenzene sulfonic acids, sodium xylene sulfonate, linear olefin sulfonates, fatty amine oxides, phosphate esters, fatty imidazoles, carboxylated derivatives of fatty imidazoles, sulfonated derivatives of fatty imidazoles, fatty amidobetanes, fatty sulphoamido-betanes and mixtures thereof.
Patent CA-2190546-A1 (CA)
Title: Enhanced uplink modulated backscatter system
Inventor: MACLELLAN JOHN AUSTIN
IPC: H04J3/00
Filed: 1996-11-18
Abstract: In accordance with the present invention, a novel Time Division Multiple Access (TDMA) duplex radio communication system comprises an Interrogator which generates a first radio signal by modulating a first information signal onto a radio carrier signal. The Interrogator transmits the first radio signal to at least one remote Tag of the system. The remote Tag receives and processes the received first radio signal. The remote Tag then modulates a second information signal onto a second radio carrier signal to form a second modulated signal. This second modulated signal is then transmitted, in a time-slotted manner, back to the Interrogator. The remote Tag selects, or is instructed, how many times it should repetitively transmit the second modulated signal; and selects, or is instructed, over how many of the time. slots following receipt of the first radio signal the remote Tag should repetitively transmit the second modulated signal. Other embodiments of this invention include the use of Modulated Backscatter to transmit the second modulated signal, and the use of homodyne detection to demodulate the second modulated signal. A      Frequency Division Multiple Access (FDMA) duplex radio communication system embodiment utilizes multiple subcarrier frequencies and another embodiment combines the FDMA and the TDMA methods. A Code Division Multiple Access (CDMA) embodiment utilizes multiple spreading codes; in addition, another embodiment combines the CDMA and the TDMA methods. A novel method for power control of the tag, using modulated backscatter, is also disclosed. Finally, a method for the Interrogator to instruct the Tag to dynamically alter the data rate of the second information signal is also disclosed.
Patent CA-2190765-A1 (CA)
Title: Novel potent inducers of terminal differentiation and methods of use thereof
Inventor: BRESLOW RONALD
IPC: A61K31/427
Filed: 1995-05-19
Abstract: The present invention provides the compound having structure (I), wherein each of R1 and R2 are independently the same as or different from each other; when R1 and R2 are the same, each is a substituted or unsubstituted arylamino, cycloalkylamino, pyridineamino, piperidino, 9-purine-6-amine, or thiazoleamino group; when R1 and R2 are different, R1 = R3-N-R4, wherein each of R3 and R4 are independently the same as or different from each other and are a hydrogen atom, a hydroxyl group, a substituted or unsubstituted, branched or unbranched alkyl, alkenyl, cycloalkyl, aryl, alkyloxy, aryloxy, arylalkyloxy, or pyridine group, or R3 and R4 bond together to form a piperidine group and R2 is a hydroxylamino, hydroxyl, amino, alkylamino, dialkylamino or alkyloxy group;  and n is an integer from about 4 to about 8. The present invention also provides a method of selectively inducing terminal differentiation of neoplastic cells and thereby inhibiting proliferation of such cells. Moreover, the present invention provides a method of treating a patient having a tumor characterized by proliferation of neoplastic cells. Lastly, the present invention provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically acceptable amount of the compound above.
Patent CA-2194182-A1 (CA)
Title: Determining biodegradability of iminodiacetic acid derivatives, degradable chelants, uses and compositions thereof
Inventor: STRICKLAND ALAN D
IPC: G16B15/00
Filed: 1995-07-14
Abstract: Chelants represented by formula (Ib) are determined to be biodegradable when Distance A is from 3.8 x 10 -10 to 4.6 × 10 -10 m, Distance B is from 5.1 × 10-' to 5.9 × 10 -10 m, and Distance C is from 43 to 6.7 × 10 -10 m.  Compounds meeting these criteria are referred to as compounds of Formula (2). In addition to methods of analysis and computer systems therefor, the invention includes a method of chelating a metal ion to form a chelate and biodegrading the chelate comprising step (a) contacting the metal ion with at least one compound of Formula (2) to form a chelate and (b) contacting the resultant chelate or chelant with microbes of the type specified in ASTM 2667-89, ISO 5815 or effective enzymes thereof under conditions and for a time sufficient for biodegradation wherein either (i) the chelate formed in step (a) is formed in a process of removing deposits, scale, or rust; cleaning or washing; controlling metal initiated or catalyzed oxidation or deterioration including spoilage, discoloration, or rancidification; textile treatment;  paper making; stabilization of polymers or phosphates; or petroleum drilling, production or recovery; or (ii) the chelate formed in step (a) is before step (b) used as a redox catalyst, in a process of photographic bleaching, bleach-fixing or developing; in electroless deposition or plating; in removing acid or oxide gases including H2S, NO x, SO  x, CO and CO2; or in providing agricultural nutrients.