baber/WOPTO huggingface dataset:
Patent CA-2218671-A1 (CA)
Title: Non-chromated surface preparation materials and methods for corrosion protection of aluminum and its alloys
Inventor: ROSENGARD JORDAN L
IPC: C23C22/68
Filed: 1997-10-21
Abstract: Surface preparation methods (10) and materials that provide corrosion protection for aluminum and its alloys without the use of chromate and that protects aluminum against corrosion nearly as well as a chromate conversion coating. In accordance with the present methods (10), aluminium parts are degreased (11) in a general purpose cleaner and rinsed (12) in hot tap water. The parts are then cleaned (13) using alkaline cleaner and then rinsed (14) in cold tap water. The parts are then deoxidized (15) using one of two alternative steps. The parts may be deoxidized (15a) using a 20-25 volume percent Smut-Go NC solution at room temperature for 15-25 minutes. The parts may alternatively be deoxidized (15b) using a solution of 10%HNO3 and 3% NaBrO4 dissolved in water at room temperature for 15-25 minutes. Thedeoxidized aluminum parts are then rinsed (16) in cold tap water. The parts are then immersed (17) in boiling deionized water and then sealed (18) using a 1% LiNO3, 10% Al(NO3)3 and 10% aluminum silicate solution. The sealed parts are sealed (20) a second time using a solution of 13-15% Kasil #1 with a dissolved corrosion inhibitor. The sealed parts are finally dried (21) in air for about 24 hours or in an oven for 3-4 hours at 150 degrees Fahrenheit.  Aluminum parts treated by the present methods (10) meet the requirements of MIL-C-5541 without using hazardous chemicals.
Patent CA-2219299-A1 (CA)
Inventor: WANG YING
IPC: A61K38/00
Filed: 1997-10-24
Abstract: The present invention relates in general to multidrug resistance (MDR) in cells. In particular, the present invention relates to the identification of a new member of the MDR gene family, P-40, as well as to the identification of P-40 related genes (homologs) as being further members of the MDR gene family. The present invention therefore relates to nucleic acid molecules encoding P-40 protein and P-40 proteins homologs, to multidrug resistant cells containing these nucleic acid molecules; to hybridomas containing antibodies to P-40 and P-40 homologs; to nucleic acid probes for the detection of these nucleic acid molecules; to a method of detection of such nucleic acid molecules or of the P-40 protein or P-40 homologs; to bioassays comprising the nucleic acid molecules encoding P-40 or P-40 homologs, P-40 protein or P-40 protein homologs, or antibodies of the present invention to diagnose, assess or prognose MDR in an animal; to therapeutic uses of the nucleic acid molecules of the present invention (i.e. antisense), protein or antibodies of the present invention; and to methods of preventing MDR in an animal.
Patent CA-2219426-A1 (CA)
Inventor: FERNANDES DENIS ROBERT
IPC: E21B17/10
Filed: 1996-04-26
Abstract: A fitting for reducing friction between a drilling string and the wall of a well. In a first aspect the fitting has recesses (6) provided along the bore of the fitting to lubricate the interface between the fitting and the drill string to minimise friction. In a second aspect a fitting is provided on a drill string having rotatable roller means (21) which can rotate about a point of rotation (23) so as to minimise both axial and rotational friction. According to a third aspect the fitting comprises an inner section (30) secured to a drill pipe (35) or other fitting and an outer section (31) rotatable about the inner section (30). Preferably a sealed bearing (36, 42-47, 37, 38) is provided between the inner section (30) and outer section (31).
Patent CA-2220630-A1 (CA)
Title: Assembly for non-removably fixing a closure cap to a dispenser body
Inventor: MONTANER PEDRO PARES
IPC: B05B11/00
Filed: 1997-11-07
Abstract: A dispenser has its closure cap non-removably affixed to a cylindrical attaching portion of its dispenser body by a snap-fit engagement between a folded lower end section of the attaching portion and the closure or a plug located within the closure and in engagement with the attaching portion.  The folded lower end section presents an end edge facing outwardly of the closure which engages an inwardly facing end wall of the closure or of the plug.
Patent CA-2222497-A1 (CA)
Title: Composition for the inhibition of vascular occlusion
Inventor: EDELMAN ELAZER
IPC: A61K35/12
Filed: 1996-05-09
Abstract: Compositions and methods are described for treating hyperplasia of vascular smooth muscle cells and restenosis of blood vessels or accelerated arteriopathy following vascular injury or disease. Endothelial cells are cultured in a biocompatible polymeric matrix which is then implanted. or wrapped around the exterior of a blood vessel. The engrafted matrix-associated endothelial cells inhibit progression or promote regression of intimal hyperplasia or smooth muscle cell proliferation in the vicinity of the blood vessel's inner surface and decreases the incidence of restenosis often associated with vascular hyperplasia.
Patent CA-2223091-A1 (CA)
Title: Substituted sulfonylphenylheterocycles as cyclooxygenase-2 and 5-lipoxygenase inhibitors
Inventor: ROGERS KATHY L
IPC: A61P29/00
Filed: 1996-05-31
Abstract: This invention is in the field of antiinflammatory pharmaceutical agents and specifically relates to compounds, compositions and methods for treating disorders mediated by cyclooxygenase-2 or 5-lipoxygenase, such as inflammation.
Patent CA-2223286-A1 (CA)
Inventor: LEVY RICHARD
IPC: C10M107/42
Filed: 1996-06-06
Abstract: A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. A product produced by the process includes the material for decreasing friction comprising a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A process comprising controlling the delivery of a lubricant to at least one of two moving surfaces in order to decrease friction between said moving surfaces, is also disclosed. This process includes applying the lubricant composition to at least one of the surfaces. The lubricant composition in this instance comprises a superabsorbent polymer combined with a material for decreasing friction between moving surfaces, wherein the material for decreasing friction comprises a petroleum lubricant, water, synthetic lubricant, grease, solid lubricant or metal working lubricant, and optionally an additive.
Patent CA-2223930-A1 (CA)
Inventor: ANANTHAN MANICKAM
IPC: G06F13/38
Filed: 1996-06-07
Abstract: A system and method for burst-broadcasting data from a master device (60) to multiple target devices (70) over a peripheral component interconnect (PCI) bus (50). Initially, an initiator device (60) in the system captures control of the bus (50). The initiator device (60) inspects an internal coherency flag. The initiator device (60) releases the bus (50) if its coherency flag is set (if the initiator device is not in the middle of a previously commenced burst-broadcast, in which case it keeps control of the bus). The initiator device (60) then sets the coherency flag in each of the other devices (70), and concurrently sets its own coherency flag. Once all the coherency flags are set, the initiator device (60) broadcasts a block of data on the bus (50) to each of the other devices (70) simultaneously. Once the burst-broadcast is complete, the coherency flags in the initiator device (60) and each of the other devices (70) are concurrently reset by the initiator device (60). The invention augments an existing bus technology by adding a new mode of operation.
Patent CA-2224109-A1 (CA)
Title: Methods and compounds for diagnosing coronary artery disease
Inventor: ERION MARK D
IPC: C07C247/04
Filed: 1996-05-31
Abstract: The present invention relates generally to methods of diagnosis, evaluation and treatment of coronary artery disease in mammals using substituted catecholamines and compounds therefore. It also relates to the preparation, use and administration of these compounds which are useful in the diagnosis, evaluation and treatment of coronary artery disease by means of a feedback controlled drug delivery system that delivers exercise simulating agents which are capable of eliciting acute responses similar to those elicited by aerobic exercise.
Patent CA-2224294-A1 (CA)
Inventor: PLITZKO KLAUS-DIETER
IPC: C08G65/10
Filed: 1996-07-26
Abstract: In the method proposed for the production of copolymers of tetrahydrofuran and 2-butine-1,4-diol by the catalytic polymerization of tetrahydrofuran, the polymerization is carried out over a heterogeneous acid catalyst having acid centres with a pKa-value of < +2, the concentration of the catalyst being at least 0.005 mmol/g, in the presence of 2-butine-1,4-diol. In particular, to produce polyoxytetramethylene glycol, the copolymers are reacted in the presence of hydrogen over a hydrogenation catalyst.
Patent CA-2225447-A1 (CA)
Inventor: MENTZER MERLE J
IPC: D21H23/18
Filed: 1996-06-21
Abstract: A wet end additive composition which is used as a sizing agent in a papemtaking process, the composition comprising a two phase suspension of swollen starch having a dry substance from about 0.5 to about 30% by weight, a cooked swollen volume from about 1.6 ml./gram to about 100 ml./gram and cooked solubles from about 0.5 R6 to about 50% by weight. The composition is preparated starching with a starch slurry having a relatively low concentration (dry substance) of starch. The slurry is subjected to carefully controlled swelling conditions (temperature and pH) which can vary depending upon the type of starch employed. The dry substance of the slurry also may vary depending upon whether a continuous or batch process is employed. The composition is used in a papermaking process by adding it to the furnish after the refining stage.
Patent CA-2230786-A1 (CA)
Title: Alkenyl-substituted dicarboxylic acid or anhydride ester derivatives
Inventor: CLARK MICHAEL THOMAS
IPC: C08F110/06
Filed: 1996-09-06
Abstract: Alkenyl-substituted dicarboxylic acid or anhydride ester derivatives, useful as dispersant additives in lubricating oil compositions, having an alkenyl group derived from an atactic propylene oligomer substantially of formula (I), where n is in the range 15 to 120, having number average molecular weight (Mn) in the range 700 to 5000, and molar ratio dicarboxylic acid or anhydride moieties:atactic propylene oligomer in the range 1:1 to 2:1, and having an ester group derived from a polyol; a process for their preparation; and lubricating oil compositions and concentrates containing them.
Patent CA-2231760-A1 (CA)
Title: Cold-rolled steel strip and hot-dip coated cold-rolled steel strip for use as building material and manufacturing method thereof
Inventor: FUJITA TORU
IPC: C22C38/04
Filed: 1998-03-11
Abstract: A cold-rolled steel strip or hot-dip coated cold-rolled steel strip for use as a fire-proof building member has composition consisting of 0.01-0.25 wt.% C, up to 1.5 wt.% Si, 0.05-2.5 wt.% Mn, up to 0.1 wt.% P, no more than 0.02 wt.% S, 0.005-0.1 wt.% Al, 0.05-1.0 wt.%      Mo, optionally 0.005-0.2 wt.% one or more selected from Ti, Nb, V and W, optionally one or more of 0.05-0.6 wt.% Cu, 0.05-0.6 wt.% Ni, 0.05-3.0 wt.% Cr and 0.0003-0.003 wt.% B and the balance being essentially Fe except inevitable impurities. The cold-rolled steel strip is manufactured by hot-rolling, acid-pickling, cold-rolling and then annealing at a temperature above its recrystallization temperature but below 950°C . The hot-dip coated cold-rolled steel strip is manufactured in the same way but in-line heating a cold-rolled steel strip at a temperature above its recrystallization temperature but below 950°C and then immersing it into a coating bath. The annealed or hot-dip coated steel strip may be further cold-rolled with such a slight duty to induce a plastic strain of 1-5%.
Patent CA-2232041-A1 (CA)
Title: Feuilles en alliage de cuivre pour circuits souples
Inventor: CHEN SZUCHAIN
IPC: H05K1/03
Filed: 1996-09-05
Abstract: L'invention concerne un circuit souple (10) pour l'interconnexion de deux éléments d'un dispositif électrique, constitué d'un substrat en polymère flexible (14). Une bande en alliage de cuivre (12) est superposée au substrat souple (14). Cette bande (12) est traitée de manière qu'elle possède une résistance relativement élevée et une résistance à la traction supérieure à environ 551,6 MPa, suite à des additions à l'alliage, à un traitement ou à une combinaison des deux. En superposant la bande en alliage de cuivre (12) au substrat en polymère souple (14), on améliore les performances de fatigue dynamique du circuit souple (10) résultant (nombre de cycles supérieur par rapport aux défaillances), ce qui donne une meilleure performance par rapport aux bandes en alliage de cuivre pur ou dilué.
Patent CA-2232569-A1 (CA)
Inventor: P HLANDT WALTER L
IPC: B22C15/268
Filed: 1996-09-23
Abstract: In order to detect reject articles and prevent repeated waste, a quality control process is disclosed for use in the production of finished cast shells or core stackings (1). Moulding material is shot by a shooting device (3) into an openable tool (4) and is there allowed to solidify to form a moulding (2) (either a core or shell); the moulding (2) is removed from the opened tool (4) and then manipulated, conveyed and if appropriate finished to form a core stacking (1). The proposed process is characterised in that the mouldings (2) and/or tools (4) are measured without contact in the areas of the shooting device (3) and/or manipulators (5) and/or processing stations (6) and/or the storage areas (7) and/or conveyor lines (8) and the measured values fed into a computer (9), processed as appropriate and compared with stored reference values; and in that the moulding (2) and/or tool (4) is identified as reject or defective if a predeterminable or definable deviation from the reference values is detected.
Patent CA-2234874-A1 (CA)
Title: Positive electrode material for use in non-aqueous electrolyte battery, process for preparing the same, and non-aqueous electrolyte battery
Inventor: SUNAGAWA TAKUYA
IPC: C01G53/00
Filed: 1998-04-14
Abstract: A non-aqueous electrolyte battery according to the invention includes a positive electrode using a lithium- metal compound oxide as a positive electrode material, a negative electrode and a non-aqueous electrolyte solution, the battery employing a positive electrode material composed of the lithium-metal compound oxide which contains at least Ni, Co and Mn, and has a peak with a full width at half maximum of not greater than 0.22° in a range of 2.theta.=18.71 0.25° as measured by the powder X-ray diffraction analysis using a Cu-K.alpha. X-ray source or employing a positive electrode material composed of a lithium-metal compound oxide which contains at least Ni, Co and Mn, and a non- aqueous electrolyte solution which includes a solvent containing ethylene carbonate and a solute containing at least one type of fluorine-containing compound.
Patent CA-2235438-A1 (CA)
Title: Nk-1 receptor antagonists for the treatment of symptoms of irritable bowel syndrome
Inventor: WILLIAMS STEPHEN ALARIC
IPC: A61K31/445
Filed: 1998-04-21
Abstract: Abstract The present invention relates to a pharmaceutical composition for treating or preventing symptoms of irritable bowel syndrome in a mammal, including a human, comprising a compound that is an NK-1 receptor antagonist, in particular a substance P receptor antagonist, together with a pharmaceutically acceptable diluent or carrier.
Patent CA-2235931-A1 (CA)
Title: Biodegradable films containing caseinate and their method of manufacture by irradiation
Inventor: BRAULT DENIS
IPC: C08L1/28
Filed: 1998-04-27
Abstract: The packing and even the excessive packaging of products for human consumption is a current practice in the industrialized countries. As this packaging is made primarily of non-biodegradable polymers, they currently cause environmental problems. These environmental problems are found not only in industrialized countries but also in developing countries. This situation supported the development of various films, more ecological, starting from biodegradable elements containing polysaccharides, proteins and/or lipids. We developed a biodegradable protein film from a casein salt of dairy origin. Casein is abundant and could even be recovered from unsold milk. The process of polymerization is induced by gamma irradiation. Indeed, the interaction of hydroxyl radicals with tyrosins present in protein creates a covalent bond (bityrosine). The addition of a plasticizing agent is essential in order to produce a more flexible and less friable film. The presence of glycerol does not inhibit the formation of bityrosine. It protects protein from the denaturation caused by irradiation, increases the deforming capacity and decreases the breaking strength of film. The biodegradation tests, carried out in our laboratories, showed that the film produced by gamma irradiation is accessible to the enzymatic attacks from Pseudomonas fragi.
Patent CA-2240332-A1 (CA)
Title: Metal casting processes and apparatus
Inventor: CALVI JOHN ADRIAN
IPC: B22D39/04
Filed: 1998-06-11
Abstract: Automated apparatus for the casting of metal such as zinc which includes an indexed carousel for indexing moulds through four stations. The stations are a casting station 290 where metal is cast via a launder 50, a skimming station 291 where an automatic robot controlled skimmer removes dross, a transfer station from which moulds containing molten metal are removed by an overhead crane to be placed in a cooling tank at a location substantially free of vibration and cooled moulds are returned by the crane to the transfer station and a delivery station 293 where the cast ingots 200 are removed from the moulds by another overhead crane and the empty moulds are recycled to the casting station. The ingots are lifted from the moulds at the delivery station by a mechanism which removes pins cast with the ingots and returns them to the empty mould.
Patent CA-2241995-A1 (CA)
Title: Method and facility for equalizing an electric signal distorted due to interference in the optical domain
Inventor: BUELOW HENNING
IPC: H04B10/2569
Filed: 1998-08-04
Abstract: An electrical equalizing facility for an electric input signal (S) which was derived from an optical signal (L) transmitted over an optical fiber and which is distorted due to interference in the optical signal (L) as a result of, e.g., polarization mode dispersion (PMD) comprises a number (n>1) of parallel-connected, different, variable electronic equalizers (E1, .., E i, .., E n), which are supplied with the electric input signal (S), and a control unit (3) for selecting the electric output signal (S i) of the respective best equalizing electronic equalizer (E i) and for controlling the equalization parameters (E i,1, ... E i,m) of this equalizer in such a way that the quality (Q) of its equalized signal (S i) is optimized. This makes it possible to select the equalizer currently operating satisfactorily.
Patent CA-2244808-A1 (CA)
Title: Method of monitoring co concentrations in hydrogen feed to a pem fuel cell
Inventor: NEUTZLER JAY KEVIN
IPC: H01M8/04
Filed: 1998-08-11
Abstract: The CO concentration in the H2 feed stream to a PEM fuel cell stack is monitored by measuring current and/or voltage behavior patterns from a PEM-probe communicating with the reformate feed stream. Pattern recognition software may be used to compare the current and voltage patterns from the PEM-probe to current and voltage telltale outputs determined from a reference cell similar to the PEM-probe and operated under controlled conditions over a wide range of CO concentrations in the H2 fuel stream. The PEM-probe is intermittently purged of any CO build-up on the anode catalyst (e.g., by (1) flushing the anode with air, (2) short circuiting the PEM-probe, or (3) reverse biasing the PEM-probe) to keep the PEM-probe at peak performance levels.
Patent CA-2245164-A1 (CA)
Title: Sprinkler drain and test valve
Inventor: JOHNSON AUGUSTUS W
IPC: F16K5/10
Filed: 1998-08-17
Abstract: A sprinkler drain and test valve for testing sprinkler systems including a housing, an inlet and outlet disposed on either end of the housing, a ball disposed within the housing between the inlet and the outlet having three channels extending therethrough that provide communication between the inlet and outlet. A pressure relief valve is carried within one of the channels for opening the flow through the valve when a pressure from fluid flow exceeds a pre-determined pressure when the valve is in the first position and for blocking fluid flow when the valve is in a hydrostatic test angular position.
Patent CA-2249898-A1 (CA)
Inventor: KADABA NARENDRA S
IPC: B29L11/00
Filed: 1998-10-09
Abstract: A method is provided for the manufacture of a polyvinylene-based light polarizer (cf., a "K Sheet"-type polarizer). In one embodiment, the polyvinylene chromophore of said polarizer is produced by the acid catalyzed dehydration of an oriented polymeric starting material, the acid catalyst being introduced in the method as a bonding agent used to secure the starting materialto a carrier web (or other supporting substrate). Advantages of the method include reduced frequency of "streaking" and "mottling"; good processing speed; and the ability to use a low acid concentration, resulting in a correspondingly low-corrosion processing environment.
Patent CA-2252682-A1 (CA)
Inventor: REDDEN LORIN D
IPC: B03D/
Filed: 1998-11-03
Abstract: A flotation recovery improvement system is provided for incorporation into the existing structure of a flotation cell or flotation row to increase thefixed flotation volume of the existing flotation cell or flotation row, and to increase residence time for influent feed slurry, to thereby increase and selectively control the recovery of values from an influent feed slurry. The invention includes a flotation box having attachment apparatus for connecting itto an existing flotation cell, and having a sparger system for directing air into the path of influent feed slurry entering into the flotation box to enable and enhance recovery of values from the influent feed slurry in the flotation box. Alaunder member associated with the flotation box removes froth formed in the flotation box, and may be positioned to deliver such froth to the overflow launder of the flotation cell to which it is attached.
Patent CA-2253866-A1 (CA)
Title: Synthese enzymatique d'acides hydroxamiques optiquement actifs et leur conversion en amines primaires optiquement actives par transposition de lossen
Inventor: HIRRLINGER BEATE
IPC: C07C209/62
Filed: 1997-05-12
Abstract: L'invention concerne un procédé pour produire des acides hydroxamiques optiquement actifs de la formule générale (I) dans laquelle R?1¿, R?2¿ et R?3¿ sont différents et représentent un radical hydrocarbure cyclique ou linéaire, aliphatique ou aromatique, substitué ou non substitué, qui peut contenir des hétéroatomes. Ce procédé est caractérisé en ce qu'un racémate constitué d'amides chiraux, d'esters d'acide carboxylique ou d'acides carboxyliques de la formule générale (II) dans laquelle R?1¿, R?2¿ et R?3¿ sont définis comme ci-dessus et X est -NH¿2?, -OR ou bien -OH, R étant un radical organique quelconque, est mis en réaction avec une hydroxylamine (NH¿2?OH) en présence d'une acyltransférase, et l'acide hydroxamique optiquement actif (I) ainsi formé est séparé de l'énantiomère inaltéré de la formule générale (II). L'acide hydroxamique optiquement actif ainsi obtenu peut être converti en les amines primaires optiquement actives correspondantes par transposition de Lossen.