baber/WOPTO huggingface dataset:
Patent CA-2003511-C (CA)
Inventor: MIZUTANI TOMOJI
IPC: B29C55/12
Filed: 1989-11-21
Granted: 1998-11-10
Abstract: Heat setting by the conventional tentering method provides polyamide film which is anisotropic in heat shrinkage.  Therefore, only the central part of the film can be used for applications which need a low degree of anisotropy.   The present invention provides an improved method of heat-setting biaxially oriented polyamide film in flat form.  Said method is characterized in that biaxially oriented polyamide film, with the edges thereof gripped, is heated to an adequate temperature after preheating the polyamide film when it is desired, which is 10-40°C lower than the melting point of the film, by bringing it into close contact with the surface of a heating body, and immediately thereafter the film is cooled to a temperature at which the film does not deform easily.    The present invention also provides biaxially oriented polyamide film which has a uniform heat shrinkage across the entire width of the film.  The shrinkage by hot water at 100°C is smaller than 5.0 % in all the directions in the plane, and the anisotropy H (%) in hot water shrinkage which is calculated from the formula below is less than 30%, preferably less than 20%, across the entire width of the film.     (see fig. I) (where S45 and S135 respectively denote the shrinkage (by hot water at 100°C) in the directions deviated leftward 45° and 135° from the machine direction.)
Patent CA-2004249-C (CA)
Title: Arylpiperidine derivatives
Inventor: NAGEL ARTHUR ADAM
IPC: C07D211/18
Filed: 1989-11-30
Granted: 1996-09-17
Abstract: A series of novel N-alkyl or oxyalkyl arylpiperidine derivatives have been prepared, including their pharmaceutically acceptable acid addition salts, wherein the N-alkyl side chain is further substituted by certain heterocyclic ring groups. These particular compounds are useful in therapy as neuroleptic agents for the control of various psychotic disorders and are represented by the formula:              wherein Ar is methoxyphenyl or naphthyl; n is an integer of from two to four, inclusive;          X is a direct link; and R is 2-amino-4-thiazolylphenyl, 5-oxindolyl, 2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl or 1,8,8-trimethyl-2,4-dioxo-3-azabicyclo-[3.2.1]octan-3-yl. Methods for preparing all these compounds from known starting materials are also disclosed.
Patent CA-2007653-C (CA)
Title: Process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof
Inventor: CEVASCO ALBERT ANTHONY
IPC: B01J31/02
Filed: 1990-01-12
Granted: 1999-04-06
Abstract: There is provided a novel process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof.
Patent CA-2013657-C (CA)
Title: Flame retardant polypropylene resin composition
Inventor: AKITAYA SHINICHI
IPC: C08K5/54
Filed: 1990-04-02
Granted: 1996-12-03
Abstract: The present flame retardant compositions of poly-propylene resin contains polypropylene as a principal constituent and the following constituents making a total of 100 wt%: (A) silane coupling agent and/or (D) olefinic synthetic rubber, (B) ammonium polyphosphate or melamine-modified ammonium polyphosphate, and (C) one or more nitrogen organic compounds which are producible nonflammable gas products and carbonaceous residues by the pyrolysis of the mixture.     Further, the other compositions of polypropylene resin contains (E) polyethylene resin along with the above constituents making a total of 100 wt%.     Moreover, the other compositions contains ( E) poly-ethylene resin, and (F) crosslinking agent and (G) thiophosphite along with above constituents making a total of 100 wt%.
Patent CA-2014152-C (CA)
Inventor: VAN RAVENSWAAY CLAASEN JOHAN C
IPC: C07C67/38
Filed: 1990-04-09
Granted: 1999-05-11
Abstract: A process for the preparation of an alkyl methacrylate, which comprises: a)   selectively removing propadiene from a C3-mixture comprising a mixture of propyne and propadiene that has been obtained from an ethene cracker, a catalytic cracker or an LPG-dehydrogenation process, to afford a propyne feed in which the ratio of propyne to propadiene is ~ 6, and b)   contacting the propyne feed with carbon monoxide and an alkanol in the presence of a carboxylation catalyst.
Patent CA-2014435-C (CA)
Title: Ultrasonic tire testing method and apparatus
Inventor: MACECEK MIREK
IPC: G01N29/04
Filed: 1990-04-11
Granted: 1999-06-22
Abstract: A method and apparatus for non-destructive ultrasonic testing of tires is disclosed wherein an ultrasonic transmitter is positioned outside of the tire and applies pulses of ultrasound to the tire at a plurality of locations around the tire's circumference for transmission through the tire wall and receipt by an ultrasonic receiver located within the tire. The ultrasonic receiver generates signals in response to the received ultrasonic tranmissions and a computer processes these signals to generate characterizing data from which defects in the tire may be determined.  Signals representative of the defects are then processed to generate a graphic display illustrating the location of the defects within the tire.
Patent CA-2016289-C (CA)
Title: Process and apparatus for forming a non-woven web
Inventor: DODGE RICHARD N II
IPC: D01F6/06
Filed: 1990-05-08
Granted: 2000-11-21
Abstract: Disclosed herein is an apparatus of the type for forming a nonwoven web from a fiber forming thermoplastic polymer resin which includes a reservoir for supplying a quantity of melted fiber forming thermoplastic resin, a pump for pumping the molten resin to a fiber forming die, and a die for forming a discrete resin stream to flow therefrom. The die includes a first fluid passageway for forming a stream of fluid, such as air, in contact with and substantially surrounding the formed flow-of resin for a predetermined distance within the die and a fluid interrupt system for selectively cycling the flow of resin on and off and clearing the resin from the fiber forming die. A receiving belt collects the fibers formed from the resin flow beyond the first fluid passageway spaced at a predetermined distance from the die.
Patent CA-2022845-C (CA)
Title: Method and composition for cementing in a wellbore
Inventor: CARPENTER ROBERT B
IPC: C09K8/46
Filed: 1990-08-08
Granted: 2001-02-13
Abstract: A method of cementing in a wellbore penetrating subterranean formations characterized by mixing a predetermined quantity of Portland Cement containing at least 2 percent by weight of tricalciun aluminate: at least 2 percent by weight of gypsum; and 0.3-2.0 percent by weight of polyvinyl alcohol with enough water to form a pumpable slurry; pumping the slurry to a desired location in the wellbore and allowing the slurry to harden to a solid mass. Also disclosed is the composition. These methods and composition provide a cementing that has many advantages and beneficial results as delineated in the specification.
Patent CA-2024700-C (CA)
Title: Benzoylguanidines, a process for their preaparation, their use as medicaments and medicaments containing them
Inventor: SCHOLKENS BERNWARD
IPC: A61K31/535
Filed: 1990-09-05
Granted: 1999-04-06
Abstract: Benzoylguanidines of the formula I                            (see fig. I) where  R(1) or  R(2)  is equal  to  R(6)-S(O)n-  or R(7)R(8)N-O2S-and the other substituent R(1) or R(2) is in each case equal to H, F, Cl, Br, I, alkyl, alkoxy or phenoxy, R(6)-S(O)n or R(7)R(8)N- and R(6)  is equal to alkyl, cycloalkyl, cyclopentyl-methyl, cyclohexylmethyl or phenyl, R(7)  and R(8)  are equal to alkyl or phenylalkyl or phenyl, and in which R(7) and R(8) may also together be a C4-C7 chain, and in which R(7) and R(8), together with the nitrogen atom to which they are bonded, may be a dihydro-indole,  tetrahydroguinoline  or  tetrahydroisoquinoline system, and where R(3), R(4) and R(5) are equal to hydrogen or alkyl, or R(3) and R(4) are together an alkylene chain or R(4) and R(5) are together an alkylene chain, and where n is equal to zero, 1 or 2 and their pharmaceutically tolerable salts are outstanding antiarrhythmics.            They are obtained by a process in which compounds of the formula II                (see fig. II) are  reacted  with  a  guanidine  derivative  of  the formula III                        (see fig. III) in which X is a leaving group which can easily be substituted by a nucleophile.
Patent CA-2032214-C (CA)
Title: Elevator safety apparatus for bi-directional braking in an overspeed condition
Inventor: KORHONEN HELGE
IPC: B66B5/22
Filed: 1990-12-13
Granted: 1996-01-16
Abstract: An elevator safety apparatus is disclosed which is designed to be mounted on an elevator car, which car moves along guide rails; said apparatus comprising a frame, an area for wedge housings formed in the frame, and wedges placed in the wedge housings on each side of a guide rail; said wedges gripping the guide rail when the safety apparatus is activated, the wedges being placed relative to each other such that the wider end of one wedge points upwards while the wider end of the second wedge points downwards. To allow safety apparatus action in both an upward and downward direction, the apparatus is provided with an activating means connected to and moving both wedges, and an overspeed governor, or the equivalent, for controlling the activating means.
Patent CA-2042475-C (CA)
Title: Door and window latch
Inventor: VEILLETTE PIERRE
IPC: E05B65/08
Filed: 1991-05-13
Granted: 1996-07-16
Abstract: In general, latch devices for sliding patio doors are complicated and/or intended to lock a door fully closed.          A simple device for latching a sliding door or window partly or fully open or fully closed includes a track for mounting on a frame opposite the side edge of a movable door or window panel; a slide for slidable mounting on the track; a bracket for mounting on the edge of the panel at the bottom thereof; a rod pivotally connected to the slide and to the bracket; a bolt slidable in a recess in the slide body which contains a spring for biasing the bolt outwardly against teeth on the track, the teeth normally permitting movement of the slide in one direction on the track so that the door can be closed but not opened; and a pin for insertion through the slide into the bolt to hold the bolt retracted in the slide, so that the door can  move freely between the open and closed positions.
Patent CA-2042691-C (CA)
Title: Multiplate subculture solid media devices
Inventor: JAEGER THOMAS J
IPC: C12M1/22
Filed: 1991-05-15
Granted: 1995-08-01
Abstract: A multiplate subculture solid media device is provided with a connection for  internal flow com-munication with a liquid medium culture bottle. The device includes a large transparent screw cap on one face thereof to gain easy access to the plurality of media  plates  for  direct  examination  and  sample taking  through  the  growth  period.   The  cap  may transparent  and  of  a  size  allowing  continuous examination  during  the  growth  period  without any opening.   Alternatively,  the  cap  internal  surface may include the solid media plates so that culture growth  activity may be directly observed by easy removal of the cap.   As a further  feature of  the invention,  the  screw cap may  include  an  integral magnifying lens for enhancing the continuous examin-ation of culture growth.
Patent CA-2043108-C (CA)
Title: Method for producing ibuprofen
Inventor: HENDRICKS JOEL D
IPC: C07C57/30
Filed: 1991-05-23
Granted: 2001-07-17
Abstract: A method is provided for the preparation of ibuprofen by carbonylating 1-(4'-isobutylphenyl)ethanol (IBPE) with carbon monoxide comprising initially a reaction mixture comprising IBPE, ibuprofen and a catalyst for the carbonylation with carbon monoxide under conditions to initiate the reaction, and continuing to feed carbon monoxide to the composition to produce the desired yield of ibuprofen. Preferably the catalyst comprises palladium and a monodentate phosphine ligand. The presence of ibuprofen in the feed composition when the reaction is initiated with CO makes it possible to obtain high selectivities to ibuprofen with substantially complete conversion of IBPE at much shorter reaction times than if no ibuprofen is present initially.
Patent CA-2048890-C (CA)
Title: Silicone textile finishes
Inventor: CZECH ANNA MARIA
IPC: D06M101/08
Filed: 1991-08-09
Granted: 1997-07-15
Abstract: A durable hydrophilic silicone textile finish is produced on cellulose-containing textiles to impart durable hydrophilic softness and durable press properties to the textile.  The silicone finish is produced from an aqueous solution of glyoxal, a reactive organomodified silicone copolymer, a glycol and an acidic catalyst.  The treating composition is applied to the textile and cured by heating at an elevated temperature to bond the silicone to the cellulose.
Patent CA-2049231-C (CA)
Title: Analytical method using tetrazolium salt indicators having a reflectance plateau
Inventor: HATCH ROBERT P
IPC: G01N33/52
Filed: 1991-08-15
Granted: 2001-12-25
Abstract: ABSTRACT OF THE DISCLOSURE General classes of 2-thiazolyl tetrazolium salt compounds have been found to be characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The reflectance plateau confers improved accuracy to analytical assays, particularly for the determination of analytes of medical diagnostic significance, in which a colorimetric response on a reagent carrier matrix is measured by reflectance. MS-1633
Patent CA-2050804-C (CA)
Title: Image pickup system capable of producing correct image signals of an object zone
Inventor: HIRAMATSU MASARU
IPC: H04N13/00
Filed: 1991-09-06
Granted: 1996-07-02
Abstract: In an image pickup system for use in a craft (11) flying over an object zone which moves independently relative to the craft, first and second electric signals represent first and second partial zones when the craft is at first and second locations at a first time instant and at a second time instant which is later than the first time instant.  The first and the second partial zones are a forward partial zone Pf viewed by a first camera unit (13) and a backward partial zone Pb viewed by a second camera unit (14).  Due to movement of the object zone, the first and the second partial zones are different by a difference zone.  Supplied with first and second location signals produced by a location signal producing unit (15) represent the first and the second locations, a correcting signal producing unit (16) produces an overall correcting signal representative of the difference zone.  By the overall correcting signal, a processing unit (17) processes the first and the second electric signals into first and second image signals for use in producing a stereo image of the object zone.  An equivalent of the location signal producing unit may be located in a terrestrial station (20).
Patent CA-2055266-C (CA)
Title: Fibre optic security and communications link
Inventor: MARTIN BRIAN WAYNE
IPC: G08B21/22
Filed: 1991-11-12
Granted: 2000-03-14
Abstract: A beacon is contained in a waterproof housing which is devoid of any electrical contact points. At a location at which a signal is to be applied to or received from the beacon, the housing is made sufficiently thin to allow light to pass therethrough.      A light energy transmitter coupled to receive the signal to be transmitted into or out of the housing is located immediately adjacent or abutted against the translucent portion of the housing. A light energy receiver is similarly disposed adjacent or abutted against the other side of the housing, to receive the light energy. In this manner no electrical contacts need pass through the housing, and the beacon circuit is entirely protected by the waterproof housing, from water, soap, sweat, body oils, etc.
Patent CA-2057558-C (CA)
Inventor: OKA KOTARO
IPC: G01N33/00
Filed: 1991-12-17
Granted: 1995-01-03
Abstract: METHOD AND APPARATUS FOR TWO-DIMENSIONAL MEASUREMENT OF CONCENTRATION OF BIOLOGICAL MACROMOLECULE CONCENTRATION                  ABSTRACT OF THE DISCLOSURE     A method of making a two-dimensional measurement of the concentration of a biological macromolecule aqueous solution and an apparatus for carrying out this method are disclosed.  By charging the biological macromolecule aqueous solution and an aqueous crystallizing agent solution into a crystallizing cell, irradiating the crystallizing cell with an ultraviolet light from an ultraviolet light source, two-dimensionally scanning the ultraviolet light transmitted through the crystallizing cell by a linear sensor to detect the quantity of the transmitted light, and carrying out a conversion of the detected quantity of the transmitted light to the protein concentration, the process of a crystallization of the biological macromolecule from biological macromolecule aqueous solution can be easily and accurately two-dimensionally measured.
Patent CA-2068363-C (CA)
Title: Fluid cushion
Inventor: SEREBOFF JOEL L
IPC: A47C4/54
Filed: 1992-05-11
Granted: 2000-11-07
Abstract: A fluid cushion is provided herein. The fluid cushion includes at least two spaced-apart openings which are adapted to interface with the ischial spines of a sitting user of the fluid cushion. The fluid cushion includes a fluid-tight, closed housing having an upper surface member and a lower surface member. Each of the upper surface member and the lower surface member have at least two openings which are formed therethrough. The openings which are formed through the upper surface member are substantially-vertically aligned with the openings which are formed through the lower surface member. Tubular means are provided for joining the openings in the upper surface member and the openings in the lower surface member in fluid-tight relation defining a pair of vertically-directed through passages having tubular sidewall members of varying cross-sectional diameters when taken with respect to a vertical direction. The fluid-tight, closed housing and the tubular means define an internal chamber containing a fluid medium. The tubular sidewall members define an apex diameter having a greater dimension than a diameter of the openings in the upper surface member and the openings in the lower surface member at a predetermined vertical position between the upper surface member and the lower surface member.
Patent CA-2070598-C (CA)
Inventor: BUTCHER JANE L
IPC: C07C41/40
Filed: 1992-06-05
Granted: 2004-08-10
Abstract: A composition comprising bis(fluoromethyl)ether and less than an equimolar amount of water, a process for the production of the composition comprising contacting, formaldehyde with hydrogen fluoride and separating at least some of the by-product water from bis(fluoromethyl)ether, and use of the composition for the production of difluoromethane.
Patent CA-2071713-C (CA)
Inventor: KURTYAK ANDREW G
IPC: E01B13/02
Filed: 1992-06-19
Granted: 1994-08-02
Abstract: A RAIL ANCHOR WRENCH               Abstract of the Disclosure A wrench for applying rail anchors to the flange of a rail of a railroad track.  The wrench includes an elongated handle and a shoe.  The shoe is connected to the handle by 21 pair of links which are pivotally connected to the shoe and the handle.  The shoe has a nose, a tine, a heel and a jaw opening.         The jaw opening is defined between the nose and the tine and receives the hook end of a rail anchor when the hook end is placed over the flange of a rail prior to installation.  The nose of the shoe rests on the flange face of the rail in contact with the hook end of the anchor when the wrench is in its anchor installing position.  The first link of the pair of links is pivotally connected at one end to the handle and at its opposite end to the nose of the shoe.  The first link engages the head of the rail to fix in position its pivotal connection with the handle.  The second link connects the handle and the heel of the shoe.  As the handle is rotated about its pivotal connection with the first link, the second link forces the shoe to rotate about its pivotal connection to the first link.  Rotation of the shoe forces the anchor into engagement with the rail flange until the anchor latch is seated.
Patent CA-2093760-C (CA)
Title: Reconstituted tobacco sheets and methods for producing and using the same
Inventor: GELLATLY GRANT
IPC: B29C41/12
Filed: 1993-04-08
Granted: 2005-01-04
Abstract: Reconstituted tobacco sheets manufactured from tobacco dust and binder are described herein.      More particularly, the tobacco dust has a mean particle size in the range of from about 60 mesh to about 400 mesh to afford reconstituted tobacco sheets having about 80% to about 90% tobacco content with improved quality and survivability. The reduced particle size of the tobacco dust allows an increase in the solids content of the slurry without an increase in slurry viscosity. The increased solids content reduces the drying load of the cast sheet thereby allowing an increased production rate. The reconstituted tobacco sheets may be prepared from a slurry comprising tobacco dust and binder that may be subjected to a means for removing air trapped within the slurry before casting the slurry into sheets. An apparatus for determining the amount of air trapped within the slurry prepared according to the process of the present invention is also described herein.
Patent CA-2103746-C (CA)
Inventor: HABERBERGER PETER
IPC: D07B3/00
Filed: 1993-08-10
Granted: 1997-10-21
Abstract: A device for the reverse-stranding of cabling elements of a fixed guide disk spaced from a stranding disk which can rotate around its axis.  Both disks have axial holes for routing the cabling elements.  The device also has a fixed point for joining the stranded cabling elements at the stranding point.  For the proper guidance of the cabling elements, at least one filament-shaped, nonelastic carrier element is placed between the guide disk and the stranding disk, with at least one holding element at a distance from the guide disk on one side, and from the stranding disk, on the other.  Each holding element has axial holes through which the cabling elements are routed.
Patent CA-2115839-C (CA)
Title: Hla-restricted hepatitis b virus ctl epitopes
Inventor: VITIELLO MARIA A
IPC: A61K38/10
Filed: 1992-08-26
Granted: 2010-06-01
Abstract: Cytotoxic T lymphocyte-stimulating peptides induce HLA-restricted responses to hepatitis B virus antigens. The peptides, derived from CTL epitopic regions of both HBV surface and nucleocapsid antigens, are particularly useful in the treatment and prevention of HBV infection, including the treatment of chronically infected HBV carriers. The peptides can be formulated as HBV vaccines and pharmaceutical compositions, such as lipid-containing compositions for enhancing the HLA-restricted CTL  responses. The peptides are also useful in diagnostic methods, such as predicting which HBV-infected individuals are prone to developing chronic infection.