baber/WOPTO huggingface dataset:
Patent CA-2006559-A1 (CA)
Title: Process for the synthesis of n -fluorenylmethoxycarbonyl-n -trityl-arginine
Inventor: CACIAGLI VALERIO
IPC: C07K1/06
Filed: 1989-12-22
Abstract: NEW PROCESS FOR THE SYNTHESIS OF N.alpha.-FLUORENYLMETHOXYCARBONYL-N -TRITYL-ARGININE                             ABSTRACT   An improvement is described in the synthesis method for N.alpha.-trityl-NG-trityl-arginine within a process for preparing N.alpha.-fluorenyl-methoxycarbonyl-NG-trityl-arginine from arginine, comprising:   a)   forming N.alpha.-trityl-NG-trityl-arginine b)   selectively detaching the trityl group from the .alpha.-NH2 and c)   introducing the fluorenylmethoxycarbonyl group in its place.            The improvement consists of preparing the N.alpha.-trityl-NG-trityl-arginine by solubilizing the arginine in an aprotic organic solvent by tri-alkylsilylation both of the amino nitrogen and of the carboxyl group, followed by tritylation, with trityl chloride, of the .alpha.-amino nitrogen, and of the guanidino group after deprotonating this latter with a bicyclic guanidine.            The new improved process can also lead to variable quantities of the arginine analogue di-tritylated at the guanidino group, namely N.alpha.-fluorenylmethoxycarbonyl-NG-di-trityl-arginine.  This new compound, to which the present invention also relates, can also be used as such in peptide synthesis.
Patent CA-2006752-A1 (CA)
Inventor: SATTINGER STANLEY S
IPC: F16F9/30
Filed: 1989-12-28
Abstract: 54,565 ABSTRACT OF THE DISCLOSURE A hollow  beam  structure  such  as  a  machinery subbase having apertures in sidewall portions thereof has a plurality of shear damper assemblies which  straddle  the apertures and are fastened to the wall portion on opposite sides  of  the  apertures.   The  shear  damper  assemblies include  a  viscoelastic  damping  layer  which  dissipates vibrational energy to minimize the vibrational response of the hollow beam structure.
Patent CA-2009912-A1 (CA)
Title: Garments and parts thereof
Inventor: NATHAN EFRAIM
IPC: A61F13/76
Filed: 1990-02-13
Abstract: Improved garments of the present invention, which may be a panty, underpants, panty hose, girdle, panty girdle, swimsuit, trunk, teddy, leotard, thermal underwear and other garments which may be worn in direct contact with the crotch region, are provided with inner and outer sets of pockets or equivalent structures to receive and retain flush on the crotch area of the garment, either a removable absorbent pad of a first size, such as a typical disposable panty liner, or a removable absorbent pad of a larger size, such as a typical disposable sanitary napkin.  The invention may be provided in a crotch assembly including a crotch piece and a plurality of panels which are attached to the crotch piece in a manner to form the inner and outer pairs of pockets.  The assembly may be used as a panel forming the crotch of a garment or attached to the inner side of a garment having a finished crotch as a liner.
Patent CA-2014035-A1 (CA)
Inventor: SOLOMON DONALD D
IPC: C08G18/10
Filed: 1990-04-06
Abstract: Melt  processable  polyurethaneureas  are prepared from  a  diisocyanate,  a  macroglycol,  a  diol  chain extender and a diamine chain extender.   Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material.  The invention includes  a  one-pot  bulk  polymerization  method  for preparation of the polymers.
Patent CA-2014481-A1 (CA)
Title: Sulfenylated carbamic esters
Inventor: KARRER FRIEDRICH
IPC: C07C313/32
Filed: 1990-04-12
Abstract: PS/5-17551/+          Sulfenylated carbamic esters Abstract Novel substituted 2-phenoxyphenoxyethylcarbamic esters of the formula I                 (I) where R1 is C1-C4alkyl or C3-C4alkenyl, R2 is C1-C4alkyl or a radical of the formula       ,             ,-C (CH3)2-CN or-N(Rg)-COO-C1-C4alkyl, R3 and R4 independently of one another are hydrogen or methyl, R5 is fluorine or chlorine, R6 is either identical to the substituents given in the case of R5 or is hydrogen, R7 and R8 independently of one another are hydrogen, halogen, C1-C4alkyl, C1-C4alkoxy or nitro, Rg is C1-C4alkyl and n is zero, one or two, their preparation, their use in pest control, and pesticides containing these carbamic esters as active substance, are described. The preferred field of application is the control of pests on animals and plants, in particular of eggs and larvae of phytophagous harmful insects and harmful mites.
Patent CA-2016086-A1 (CA)
Title: Ceramic preforms having high mechanical strengh, a process for their preparation and metal matrix composites obtained from said ceramic preforms
Inventor: GIUNCHI GIOVANNI
IPC: C22C47/08
Filed: 1990-05-04
Abstract: Abstract Preforms for metal matrix composites consisting of ceramic material belonging to the class of oxides, nitrides, carbides, borides, oxynitrides and the like, prevailingly in an acicular form and having monocrystalline or polycrystalline structure, having a density ranging from 0.2 to 1.6 g/cm3 and porosity ranging from 50 to 95%.
Patent CA-2016775-A1 (CA)
Title: Conveyor belt and guiding system therefor
Inventor: SUMMERS ROGER L
IPC: B65G39/20
Filed: 1990-05-15
Abstract: ABSTRACT OF THE DISCLOSURE         A conveyor of the type having  a  flexible endless belt with generally horizontal top and lower return  levels  is  movably  supported  for  delivering materials between load and unload stations.  A plurality of transversely spaced pairs of wheeled trolleys or other types of slide mechanisms are movably mounted on spaced horizontal guide rails and are attached to opposite sides of the conveyor belt by brackets and small sections of flexible belt material.  Each of the trolleys has a pair of horizontally mounted wheels and a pair of vertically mounted wheels which move with the conveyor belt along the  guide  rails  to  maintain  accurate  guidance  and tracking of the conveyor belt.  One of the trolleys of each pair is spring biased to compensate for possible variations in the guide rails.
Patent CA-2017744-A1 (CA)
Inventor: KIRKPATRICK STEVEN J
IPC: A23F5/02
Filed: 1990-05-29
Abstract: This invention relates to an improved process for preparing reduced density roast coffee beans.  The improved process comprises predrying green coffee beans to a moisture content of from about 0.5% to about 10% by weight, fast roasting the beans, and cooling the roasted beans.  The resulting roasted beans have a Hunter L-color of from about 14 to about 25, a Hunter .DELTA.L-value is less than about 1.2 and a whole roast tamped bulk density of from about 0.28 to about 0.38 g/cc.  The resulting roast coffee beans are more uniformly roasted than traditional reduced density coffee beans.
Patent CA-2018957-A1 (CA)
Title: Process for preparing 1,1,1-trifluoro-2,2-dichloroethane
Inventor: GERVASUTTI CLAUDIO
IPC: C07C19/08
Filed: 1990-06-13
Abstract: "PROCESS FOR PREPARING 1,1,1-TRIFLUORO-2,2-DICHLOROETHANE"        Abstract of the Disclosure 1,1,1-trifluoro-2,2-dichloroethane is continuously prepared by reacting, in the gas phase, 1,1,1-trifluoro-2-chloroethane with chlorine, preventing the formation of the by-product 1,1,1-trifluoro-trichloroethane by causing the reaction to occur with chlorine organic compound in molar ratios not higher than 1, at a temperature of from 350°C to 450°C and with residence times of the reagents in the reactor ranging from 5 to 25 seconds.
Patent CA-2019889-A1 (CA)
Inventor: ADAMS MICHAEL J
IPC: B30B15/34
Filed: 1990-06-26
Abstract: The stamping of soap and/or detergent bars using liquid-cooled co-acting die members is carried out using turbulent flow of liquid coolant in order to reduce die blocking.
Patent CA-2021127-A1 (CA)
Title: Cephalosporin derivatives and processes for their preparation
Inventor: ADAM FRIEDHELM
IPC: A61P31/04
Filed: 1990-07-13
Abstract: Abstract                                   HOE 89/F 232 Cephalosporin  derivatives  and  processes  for  their preparation Cephalosporin derivatives of the general formula   pharmaceutical  preparations  active  against  bacterial infections which contain such cephalosporin derivatives, processes  for  the  preparation  of  the  cephalosporin derivatives, use of the cephalosporin derivatives for the preparation of a pharmaceutical for combating bacterial infections, and starting products for the preparation of cephalosporin derivatives.
Patent CA-2021701-A1 (CA)
IPC: B21J15/00
Filed: 1990-07-20
Abstract: ABSTRACT     Repetition  pull-through  blind  riveting  apparatus (10),  of the type comprising a reusable and reloadable mandrel with an enlarged head which is pulled through each  tubular  rivet  in  turn  to  install  the  rivet  is provided with  a safety device  (141)  for counting the total number of times the mandrel has been pulled.   The apparatus includes pneumatically-operated mandrel pulling means, and a counter (132) counts the number of times the pressure of the air powering the pulling device reaches a pressure slightly below that required to pull the mandrel head through a rivet.   The counter (132) is arranged to actuate,  when  a safe  limit number of  pulls  has  been counted,  both  a shut-off  valve  (137)  to shut-off  the supply of pressure air to the mandrel pulling means, and a visual indicator (135).  The visual Indicator (135) may be actuated at a  warning count number rather lower than the safe limit number.  The counter (132) can be reset to zero only by use of   a separate key (142), when a new mandrel  is  installed  in  the  rivet  placing  apparatus.          (Figure 3).
Patent CA-2022355-A1 (CA)
IPC: B61F5/16
Filed: 1990-07-31
Abstract: In an articulated connection, an improved female connnecting member of the type having a ring seat within an annular groove is provided having an access passageway extending from an exterior surface of its front wall to a position at the annular groove which is covered by the ring seat.  The access passageway provides for insertion and wedging of a tool between the ring seat and the floor of the annular groove to eject the ring seat from the annular groove during disassembly and maintenance of the articulated connection.
Patent CA-2023560-A1 (CA)
Inventor: ROBERTSON STELLA M
IPC: C07C255/17
Filed: 1990-08-17
Abstract: The use of 5-methyl-isoxazole-4-carboxylic acid anilides and 2-hydroxyethylidene-cyano acetic acid anilides for treating ocular diseases with immune etiology is disclosed.
Patent CA-2024314-A1 (CA)
Inventor: ABIVEN JACQUES
IPC: H04B10/24
Filed: 1990-08-30
Abstract: A loop-back device is particularly designed to fit line terminals in half-duplex optical transmission systems thereby facilitating fault location in these transmission systems. An optical fiber coupler having a high crosstalk generates an echo in a reception channel of the terminal, from a test signal transmitted in a transmission channel of the terminal, to an optical transmission medium. Means are provided for cancelling transmission of the echo in the reception channel when the loop-back is de-activated, i.e when a data signal is carried in the transmission medium, and for amplifying and regenerating said echo when the loop-back is activated, i.e when said test signal is transmitted. A memory is used for delaying the echo and for transmitting it to a receiving circuit in the terminal during a signal reception period of the half-duplex transmission.
Patent CA-2025655-A1 (CA)
Title: Quick connect fitting
Inventor: JOHNSTON ROBERT L
IPC: F16L37/133
Filed: 1990-09-18
Abstract: ABSTRACT OF THE DISCLOSURE         A quick connect fitting in which tubing can be inserted into a pre-assembled fitting where it will become sealed and locked against pull-out.  A main fitting body has an open-ended recess in which is located a movable piston to seal against the body and an inserted tube.  The piston wedges over a conical extension on a sealing gland retained by a screw-on cap.  The sealing gland has rearward, circumferentially spaced fingers radially movable.  An axially shiftable ring, in one position, allows the fingers to expand to receive the tube, and, when shifted to a second position, moves the finger to engage the extension surface of the tube to lock against withdrawal.
Patent CA-2025984-A1 (CA)
Title: Two phase dispenser
Inventor: KING JOSEPH A
IPC: A61L9/12
Filed: 1990-09-21
Abstract: ABSTRACT OF THE DISCLOSURE   A two phase floating dispenser for simultaneously dispensing chemicals into two different fluid mediums with the dispenser having a submerged portion and an unsubmerged portion to permit the transfer of materials between the fluid medium that supports the floating dispenser and the submerged portion of the floating dispenser and between the atmosphere surrounding the unsubmerged portion of the floating dispenser and the unsubmerged portion of the floating dispenser so that a user can simultaneously transfer at least two materials between two different fluid mediums.
Patent CA-2026026-A1 (CA)
Title: Hydraulic safety joint
Inventor: SCHULTZ ROGER L
IPC: E21B17/06
Filed: 1990-09-24
Abstract: Abstract of The Disclosure A hydraulic safety joint for use in a downhole tool string.  The hydraulic safety joint includes a mandrel assembly slidably disposed in a case assembly such that a chamber is defined therebetween.  The chamber is filled with a volume of fluid so that the mandrel is held in a first operating position.  When in this first position, the mandrel is in splined engagement with a nipple at the lower end of the case assembly. Upon application of a predeter-mined tensile load on the tool string, a rupture disc in communication with the fluid chamber is ruptured so that the fluid is vented therefrom.  When the pressure is thus released, the mandrel assembly is moved to a second position in which it is further extended from the case assembly.  In this position, the mandrel assembly is no longer in splined engagement with the nipple, but a series of lugs prevents relative rotation between the mandrel assembly and an upper portion of the case assembly.  The tool string may then be rotated to break the threaded connection between the nipple and the rest of the case assembly so that the tool string components above the nipple may be removed from the well bore.
Patent CA-2026212-A1 (CA)
Inventor: LANDA BENZION
IPC: G03G9/12
Filed: 1990-01-16
Abstract: Méthode pour stabiliser une solution de départ; composition de départ ainsi obtenue, où une charge de départ est mélangée avec un solvant et une espèce monomère polaire; la réaction de polymérisation est initiée et progressera jusqu'à ce qu'elle soit complète.
Patent CA-2026703-A1 (CA)
Title: Genetic manipulations with recombinant dna comprising sequences derived from rna virus
Inventor: VAN HAUTE EDDIE
IPC: C12N15/11
Filed: 1990-10-02
Abstract: The invention relates to genetic manipulations of eukaryotic organisms, with recombinant DNA comprising RNA virus derived sequences for protecting such organisms against RNA viruses or enabling inducible or tissue-specific production of foreign proteins/peptides or RNAs. One embodiment of the recombinant DNA according to the invention comprises recombinant DNA, comprising two, 12-1250 base pair long, inverted repeat nucleotide sequences with therebetween at least one nucleotide sequence which is derived from RNA virus which for its replication is dependent upon a viral RNA/RNA polymerase, said RNA virus derived sequence comprising at least cis elements for replication but no gene that codes for viral RNA/RNA polymerase and no gene that codes for viral coat protein. The invention also relates to eukaryotic or prokaryotic cells or organisms which incorporate the recombinant DNA according to the invention. Further the invention relates to a method of protecting such cells or organisms by genetically incorporating recombinant DNA according to the invention.
Patent CA-2027741-A1 (CA)
Title: Method for producing molded article of fiber-reinforced thermoplastic resin
Inventor: HARA TAKAHISA
IPC: B29C48/03
Filed: 1990-10-16
Abstract: - 30 -ABSTRACT OF THE DISCLOSURE A molded article of a fiber-reinforced thermoplas-tic resin with good appearance and improved mechanical properties is produced by a method which comprises steps of supplying at least two porous fibrous sheets which optio-nally carry a thermoplastic resin sheet or film in a mold, supplying a melt mass of a thermoplastic resin which con-tains fibers as a reinforcing material dispersed therein in a space between said porous fibrous sheets, and forcing said resin melt to fill the pores of the porous sheets by resin supplying pressure and/or pressing pressure and to reach outer surfaces of said porous fibrous sheet or to adhere the thermoplastic resin to the thermoplastic resin sheet or film.
Patent CA-2028493-A1 (CA)
Title: Electric traction system
Inventor: ANANTHAKRISHNA ANIL
IPC: B60L11/18
Filed: 1990-10-24
Abstract: ABSTRACT       An electric  traction system,  in particular for a vehicle or vessel,  comprising  main  traction  storage  batteries,  and range extending  devices,  preferably  batteries, electrical charge means for charging said range extending battery and battery  switch means to connect  the range extending batteries in parallel with the main storage batteries for charging or backing  up the  traction storage batteries. The  electrical traction system also comprising two sets of traction motors, which can be  connected to  the storage battery individually and seccessively for driving the vehicle or vessel.
Patent CA-2028908-A1 (CA)
Title: Spinel bondable ceramic composition
Inventor: VEZZA THOMAS F
IPC: C04B35/111
Filed: 1990-10-30
Abstract: A high alumina ceramic composition has controlled small amounts of MgO and CaO. When refractories made from the composition are fired, the alumina and MgO react to form spinal. the CaO promotes such reaction while minimizing undesirable expansion, and results in a refractory having significantly improved hot strength and other desirable physical properties.
Patent CA-2029474-A1 (CA)
Inventor: HARRISON GEORGE C
IPC: G03B15/05
Filed: 1990-11-07
Abstract: Electronic flash apparatus is provided that is capable of reducing the incidence of eyelid closure of a subject during an exposure interval when the subject is illuminated with visible light from the electronic flash apparatus immediately prior to the exposure interval. The electronic flash apparatus includes a visible light flash tube and an electrical circuit coupled thereto for controlling flash tube energization and de-energization immediately prior to and during an exposure interval. The electrical circuit includes apparatus for coupling the flash tube to a suitable source of electrical energy and for applying a trigger signal to the flash tube in order to illuminate the subject with a finite amount of visible light immediately prior to an exposure interval that will not cause the eyelids of the subject to blink in response thereto during the exposure interval.
Patent CA-2033302-A1 (CA)
Inventor: ISOTA YOJI
IPC: H03F3/193
Filed: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE    A high frequency amplifier circuit comprises an amplitude characteristic correction circuit and a phase characteristic correction circuit for compensating the non-linearity of the input-output characteristics of the amplifier.  The amplitude characteristic correction circuit varies the drain voltage or the collector voltage of the amplifier in accordance with the envelope level of an input signal in such a manner that the relationship between the amplitude of the output of the amplifier and the amplitude of the input signal has linearity.  On the other hand, the phase characteristic correction circuit provides a quantity of phase shift to the input signal in accordance with the envelope level of the input signal, and the phase-shifted input signal is applied to the amplifier in such a manner that the phase of the output of the amplifier and that of the input signal coincide with each other.
Patent CA-2033965-A1 (CA)
Title: Process for the selective conversion of the asphaltenes in bitumen upgrading
Inventor: SMITH KEVIN J
IPC: C10G47/12
Filed: 1991-01-10
Abstract: PROCESS FOR THE SELECTIVE CONVERSION OF THE             ASPHALTENES IN BITUMEN UPGRADING                   Abstract of the Disclosure A process is provided for selectively converting the asphaltenic fraction of a bitumen feedstock to lower boiling point distillates.  The process involves the utilization of a delaminated pillared clay as the catalyst support.  The bitumen feedstock is reacted  with  hydrogen  under  hydrocracking  conditions  in  the presence of a metal hydrotreating catalyst on the delaminated pillared clay catalyst support.
Patent CA-2034072-A1 (CA)
Title: Dispersant polymethacrylate viscosity index improvers
Inventor: GORE ROBERT H
IPC: C10N30/02
Filed: 1991-01-11
Abstract: ABSTRACT It has been discovered that by polymerizing several alkyl methacrylates and N,N-dialkylaminoalkyl methacrylamide monomers and controlling the component weight ratio, a novel polymer with surprising properties when used as an additive for hydrocarbon lubricating oils can be produced. The polymer of this invention demonstrates superior properties as a viscosity index improver and a detergent dispersant and, in some instances, eliminates the need for a pour point depressant.
Patent CA-2035509-A1 (CA)
Title: Styrenic copolymer/polyacetal blend compositions
Inventor: GUEST MARTIN J
IPC: C08L75/06
Filed: 1991-02-01
Abstract: ABSTRACT     Thermoplastic polymer blends comprising a major proportion by weight of certain monovinylidene aromatic copolymers and a minor proportion by weight of an acetal polymer have good processability and a beneficial combination of physical and chemical properties including thermal/dimensional stability, chemical resistance and creep resistance.  Said polymer blends are suitable for use in the preparation of a variety of molded utilitarian articles having good appearance and paintability.     C-37,233
Patent CA-2036428-A1 (CA)
Title: Device for the apportioned delivery of liquids
Inventor: FUDALLA MANFRED
IPC: G01F11/26
Filed: 1991-02-15
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention relates to a device (V) for the apportioned delivery of liquid from a storage container through an outlet tube which enters into the low position, the delivery taking place only upon the second turning, a cup-shaped housing, divided by a partition wall into an upper chamber (I) and a lower discharge chamber (II) being provided, the discharge chamber (II) and upper chamber (I) of said housing being connected to each other by a passage hole, having a feed opening in the upper chamber (I), which outlet tube debouches above the partition wall, an air passage being developed in the region of the upper chamber (I).  In order to obtain a more advantageous development from a manufacturing standpoint while retaining or possibly even increasing the accuracy of dosaging, the invention proposes that the outlet tube be arranged on the upper chamber (I) and that the discharge chamber (II) be attached by detent to the upper chamber (I).
Patent CA-2036611-A1 (CA)
Title: Process for the preparation of a masterbatch rubber having polymer bound functionality
Inventor: SCHULZ GERALD O
IPC: C08F222/40
Filed: 1991-02-19
Abstract: Abstract of the Disclosure PROCESS FOR THE PREPARATION OF A          MASTERBATCH RUBBER HAVING POLYMER BOUND FUNCTIONALITY     The present invention relates to a process for preparing a masterbatch rubber containing polymer bound functionalized moieties.  The process comprises the emulsion polymerization at a temperature from 40°C to 100°C of (a) at least one functionalized monomer that contains a polymerizable vinyl group; with (b) at least one copolymerizable conjugated diene monomer selected from the group consisting of butadiene-1,3, 2-chlorobutadiene-1,3, isoprene, piperylene and conjugated hexadienes, wherein the polymerization is conducted in the presence of from about 10 to about 70 parts by weight of a plasticizer based on 100 parts by weight of total monomers.  The plasticizer functions as a cosolvent/dispersing agent for the functionalized monomer during the emulsion polymerization reaction while functioning as a plasticizer for the final polymer product.