baber/WOPTO huggingface dataset:
Patent CA-2055059-A1 (CA)
Title: Damage tolerant composites containing infusible particles
Inventor: CHAN ANITA N
IPC: C08G59/18
Filed: 1991-11-06
Abstract: DAMAGE TOLERANT COMPOSITES CONTAINING INFUSIBLE PARTICLES     Abstract of the Disclosure Damage tolerant structural composites comprising high strength filaments in the form of bundles or tows of continuous fiber and a crosslinked epoxy resin matrix are disclosed.  The invention, more particularly relates to improvements in the crosslinked epoxy resin matrix which provide the structural composites with high post impact compressive strength while maintaining such other desirable attributes of epoxy composites as good high temperature performance, solvent resistance and good processing characteristics.  The crosslinked epoxy resin matrix contains infusible particles that reside primarily between plies of the composite and have a median particle size between 5 - 75 microns.          Prepregs for making the damage tolerant composites and methods of making such prepregs and the epoxy resin compositions thereof are also disclosed.  The epoxy resin compositions contain the infusible particles which become segregated as to size on a surface layer of the prepreg during the process of combining the high strength filaments of the prepreg and the resin containing the epoxy resin composition.  Alternatively, the infusible particles may be disposed directly on the epoxy resin surface of the prepreg.
Patent CA-2055937-A1 (CA)
Title: Low-formaldehyde, self-crosslinking polymer latex composition
Inventor: HUTTON THOMAS W
IPC: C08K5/10
Filed: 1991-11-21
Abstract: ABSTRACT OF THE DISCLOSURE       A low-formaldehyde polymer latex composition includes a formaldehyde-scavenging agent selected from a) a compound having the formula   wherein A is selected from O, NH, and NR2; R1 is selected from H, 3-allyloxy-2-hydroxypropyl  methacryloyl  acrylol and methacryloxyaceto; and R2 is 3-allyloxy-2-hydroxypropyl when R' is 3-allyloxy-2-hydroxypropyl;      b) a compound having the formula R3CH2R4, wherein R3 and R4 are both -C(O)OR5; R3 is CH3C(O)- and R4 is -C(O) OR5; R3 is -CN and R4 is selected from -C(O)NH2 and -C(O)OR5; or R3 is CH3C(O)- and R4 is -C(O)OCH2CH2OC(O)C(CH3)=CH2; and R5 is a C1-C6 hydrocarbon radical; c) a compound having the formula NCCH2C(O)OCH2-CH-(CH2CH2OC(O)CH2CN)2; d) hydroxylamine; e) salts of hydroxylamine with an acid, the acid having an acid dissociation constant the negative logarithm of which is no greater than about 5.0; and f) the polymerized residue of a compound having the formula   wherein A is selected from O, NH, and NR2; R6 is selected from 3-allyloxy-2-hydroxypropyl, methacryloyl, acryloyl or methacryloxyaceto; and R2 is 3-allyloxy-2-hydroxypropy when R1 is 3-allyloxy-2-hydroxypropy; g) the polymerized residue of a compound having the formula CH3C(O)-CH2-C(O)OCH2CH2OC(O)C(CH3)=CH2.          The composition can also include a self-crosslinking polymer latex having N-methylol fuctional groups, such as from polymer-ized residues of N-methylolacrylamide or N-methylol-methacrylamide.  In this case, the composition may be of use as a binder for texiles or non-woven materials. The scavenging agent reduces formaldehyde evolution during drying and curing of these compositions.
Patent CA-2059239-A1 (CA)
Title: Polling method in a radio data packet communication system
Inventor: KASUGAI TERUAKI
IPC: H04B7/24
Filed: 1992-01-13
Abstract: A central station 101 continuously transmits a slot of predetermined time length which comprises a polling frame Pxx and a downward data frame Ixx.  After receiving the upward data frame Dxx, it sequentially and repeatedly carries out an individual polling of upwardly communicating terminal stations 102 and 103 at a time interval which is more than the predetermined time interval for the polling frame Pxx.  Unspecified polling is carried out of unspecified terminal stations by a polling frame Po which does not carry out this individual polling.          Independently of the polling frame Pxx, the downward data frame Ixx is repeatedly transmitted to downwardly communicating terminal stations 104 and 105.  The polling frame Pxx and the downward data frame Ixx which are included within the same slot are transmitted to a terminal station 106 which is in the upward and downward duplex communication mode at a time interval longer than the predetermined time interval.  The terminal stations 102 through 106 transmit a polling request Rxx or an upward data frame Dxx to the polling frame Pxx from the central station 101 at a time interval longer than the predetermined time interval.
Patent CA-2063174-A1 (CA)
Inventor: HARREITHIER RUPERT
IPC: B30B9/20
Filed: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE     A metering apparatus  for the metered delivery of flowable or fluent material masses comprises a drum member rotatable about a substantially horizontal lengthwise axis.  A cylindrical shell of such drum member contains a multiplicity of openings.  A cell wheel is rotatably arranged within the drum member.     The lengthwise axis  of the cell wheel  and the lengthwise axis of the drum member are arranged parallel and eccentric to one another and, optionally, these lengthwise axes can be moved relative to one another.  Beneath the drum member there is arranged a transport device for receiving metered portions of the material mass.  The cell wheel is provided with lamellae cooperating with an inner surface or wall of the drum member, and such drum member, while leaving free or unobstructed a lower region, is surrounded by a container for the material mass.                   P10738 Canada
Patent CA-2065022-A1 (CA)
Inventor: LACROIX MARTIAL
IPC: C07K16/00
Filed: 1990-08-17
Abstract: Linear and cyclic peptides of the E1 and C protein of the rubella virus. These peptides and analogues, mixtures and combi-nations of them are useful in detecting and quantifying antibodies raised against the rubella virus. They are also useful in raising antibodies to the rubella virus for use in the diagnosis of and protection against rubella viral infections.
Patent CA-2066763-A1 (CA)
Title: Polyolefin/thermoplastic blend
Inventor: DEKONINCK JEAN-MARC
IPC: C08L101/00
Filed: 1990-10-05
Abstract: The mechanical properties, particularly the heat distortion temperature and impact resistance, of polymeric compositions for moulding are particularly good in compositions comprising a polyolefin, an engineering thermoplastic and a compatibiliser, which compositions are capable of being moulded to give a product in which at least one of the polyolefin and engineering thermoplastic is in the form of at least some non-spherical particles dispersed in the other of the polyolefin and engineering thermoplastic.
Patent CA-2069573-A1 (CA)
Title: Eimeria necatrix dna probes
Inventor: CHAKRABORTY PRASANTA R
IPC: A61K39/012
Filed: 1992-05-26
Abstract: TITLE OF THE INVENTION          EIMERIA NECATRIX DNA PROBES            ABSTRACT OF THE INVENTION            Unique species-specific Eimeria necatrix DNA probes comprising divergent DNA sequences are disclosed. The probes are complementary to a small subunit ribosomal RNA. gene of Eimeria necatrix.
Patent CA-2070766-A1 (CA)
Title: Self-locking housing assembly
Inventor: ANNETT THOMAS A
IPC: H05K7/14
Filed: 1992-06-09
Abstract: Abstract of the Disclosure A housing assembly for supportively housing a circuit board in fixed engagement therewithin. The housing assembly forms a support surface for receiving the circuit board at an unlocked position. Sliding translation of the circuit board is permitted upon the support surface to position the circuit board at a locked position. Translation of the circuit board causes elastic deformation of clamps which exert clamping forces responsive thereto to affix the circuit board in position at the locking position.
Patent CA-2071308-A1 (CA)
Inventor: CUDINI A MARIO
IPC: B23Q1/01
Filed: 1992-06-16
Abstract: A linear motor piston turning and grooving machine (10) for turning non-round diameters and complex shaped pistons (W) in which a pair of oppositely facing CNC turning modules (14, 16) each are aligned with one of a pair of a vertical axis spindles (30, 32) having chucks (26, 28) for each piston (W). An overhead tailstock assembly (34, 36) is centered over each spindle (30, 32). A grooving mechanism (106, 108) is located to the rear of each tailstock assembly (34, 36) and includes a rocking support shaft (110, 112) for bringing tooling (114, 116) into engagement with the piston (W).
Patent CA-2071442-A1 (CA)
Inventor: LAUFS FRITZ
IPC: B41N3/08
Filed: 1992-06-17
Abstract: The invention relates to a damping solution concentrate that basically contains a)  1-15% by weight of buffer substances; b)  2-20% by weight of an additive, consisting of one or more of the substances: water-soluble polysaccharides, polyglycols and polyhydric alcohols; c)  2-10% by weight of preserving agent; d)  0.01-5% by weight of non-ionic, low-foam tenside, consisting of one or several of the substances: tertiary acetylene glycol, ethylene oxide tensides, propylene oxide tensides, fatty alcohol ethoxylates, fatty acid ethoxylates and siloxane alcoxylates; e)  1-35% by weight of a compound of the formulation C4H9-O[-CH2-CH2-O]n-H, whereby n signifies an integer of 1 to 10 or a mixture of these components; f)  0.1-10% by weight of 2-ethyl-1,3-hexane diol; and g)  25-90% by weight of water.
Patent CA-2072795-A1 (CA)
Title: Process for the production of conductive layers
Inventor: HOFHERR WALTHER
IPC: H01B5/16
Filed: 1992-06-30
Abstract: Process for the production of conductive layers Abstract of the Disclosure A process for the production of a conductive layer on a substrate, said conductive layer comprising a network of crystal needles of conductive radical cation salts based on tetrathiotetracenes, tetraselenotetracenes or tetratellurotetracenes and chlorine, bromine, iodine or copper dichloride, and said network is embedded in a polymer matrix, by coating at least one side of said substrate with a) a suspension of crystal needles of the radical cation salts of formula I in an inert solvent which may additionally contain a thermoplastic polymer or at least one starting compound for a thermosetting polymer, or b) a solution (b1) of a tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, (b2) of a monomeric, oligomeric or polymeric organic compound which contains chlorine, bromine or iodone and, when heated with these tetracenes, forms a radical cation salt, or of anhydrous CuC12, a CuC12 aquo complex or a CuC12 solvent complex, and (b3) of a thermoplastic polymer or at least one starting compound for a thermosetting polymer, in an inert solvent, and subsequently evaporating the solvent, which process comprises applying said layer by spraying the suspension a) or solution b) from nozzles on to the substrate.   Very fine meshed, dense and isotropic crystal needle networks are obtained. The coatings exhibit rapid surface discharges and are suitable for use as electostatic coatings or, on account of their good electrical conductivities, as electrode material for display elements.
Patent CA-2073766-A1 (CA)
Title: Cyclic gnrh antagonists
Inventor: RIVIER JEAN E F
IPC: C07K1/113
Filed: 1991-02-05
Abstract: Peptides which inhibit the secretion of gonadotropins by the pituitary gland and inhibit the release of steroids by the gonads.  Administration of an effective amount of such GnRH antagonists prevents ovulation of female mammalian eggs and/or the release of steroids by the gonads. These peptides may be used to treat steroid-dependent tumors, such as prostatic and mammary tumors. The peptides include cyclic, bicyclic and tricyclic analogs of the decapeptide GnRG, and preferably there are at least two covalent bonds between the residues in the 4- and 10-positions, the residues in the 5- and 8-positions and the residues in the 1- and 3-positions, respectively. Examples of such bonds include a disulfide linkage between Cys residues, an amide linkage between a side chain amino group and a side chain carboxyl group, a dicarba linkage between side-chain alkyl groups, and a carba linkage between a side-chain alkyl group and a side-chain sulfhydryl group.
Patent CA-2075204-A1 (CA)
Inventor: JANDA JOSEPH
IPC: A23L27/00
Filed: 1991-10-04
Abstract: A microencapsulation process in which a solid or liquid core material is dispersed in a protein slurry, is heated to create a protein melt and then denatured to bring about encapsulation of the core material and the product of that process.
Patent CA-2075299-A1 (CA)
Title: Process for controlling an installation for plasma treatment of workpieces
Inventor: OPPEL WERNER
IPC: H01J37/32
Filed: 1991-01-22
Abstract: The invention relates to a process for controlling an installation for plasma treatment of workpieces. The installation has a constant voltage source for producing a glow discharge voltage V, which includes a control unit for controlling the magnitude of the glow discharge voltage V and a switch unit which can periodically switch off the glow discharge voltage V in various pulse-pause ratios. The installation also has a sensor for measuring the temperature of the workpiece, which is connected to the control unit so that the glow discharge voltage V is increased if the measured temperature is less than a given treatment temperature and decreased if the measured temperature is greater than the treatment temperature. The glow discharge voltage V is monitored so that if it falls below a lower threshold value the pulse-pause ratio of the glow discharge voltage V is reduced and if it exceeds an upper threshold value the pulse-pause ratio is increased.
Patent CA-2075457-A1 (CA)
Title: Polyisocyanate adhesive and sealant systems
Inventor: GILLIS HERBERT R
IPC: B32B7/12
Filed: 1992-08-06
Abstract: EUR 3649h ABSTRACT     COLD CURABLE ADHESIVE REACTION SYSTEM    Improved sealants and adhesives derived from polyisocyanates having aromatically linked -NCO groups are cured at ambient temperatures when combined with a curing agent comprising an imino-and enamino-functional compound.  These two component resin systems may be employed in fabricating multi-substrate laminates, especially those comprising lignocellulosic and cellulosic materials, such as wood and paper.
Patent CA-2083551-A1 (CA)
Title: Installation system for bridge girders
Inventor: MINTY HAROLD R
IPC: E01D21/06
Filed: 1992-11-23
Abstract: INSTALLATION SYSTEM FOR BRIDGE GIRDERS     ABSTRACT    A  system  for  installing  precast  concrete  bridge girders is disclosed in which there is provided a guide track having a pair of spaced track elements on top of which two lifting gantries can run.   The track is moved to a position spanning  the  intended  bridge  area  above  the  constructed bridge abutments.   A bridge girder is backed into position bridge abutments.   A bridge girder is backed into position between the track elements and lifted by one of the gantries and  then  pushed  across  the  area  to  be  spanned  by  the transportation vehicle and the gantry.  A forward end of the girder is then lifted by the second gantry and moved into position.   With the ends of the girder above the abutments and carried by the gantries, the gantries can be lowered to move the girder downwardly onto the abutments.  This avoids the expensive use of heavy cranes.
Patent CA-2083809-A1 (CA)
Inventor: SARTOR DIETMAR
IPC: F16B15/00
Filed: 1992-11-25
Abstract: Nails are driven into hard receiving materials such as concrete, rock, metal and the like by explosive powder charge operated setting tools. To achieve the high mechanical strength required for such nails, the nails are formed of two parts, one a shank and the other a head fitted auto the shank. While the head consists is formed of a deformable corrosion resistant steel, the shank is formed of an austenitic steel alloyed with nitrogen having a very high mechanical strength. The steel forming the shank can only be shaped to a very limited extent, whereby a narrow flange is provided on the rear end of the shank. A disk fitted on the shank serves as a guide for the nails during the driving operation.
Patent CA-2083971-A1 (CA)
Title: Sliding type magnetic head for magneto-optical recording
Inventor: TAKAHASHI TOMOYUKI
IPC: G11B11/105
Filed: 1992-11-27
Abstract: A sliding type magnetic head for magneto-optical recording which can prevent a jump thereof caused by a variation in profile of a surface of a disk and can realize reduction of a load force and provide a countermeasure against an external impact. A magnetic head body includes a head element having a coil wound on a magnetic core and has a sliding element provided on one side of the head element for slidably contacting with a magneto-optical disk. The magnetic head body is mounted on a gimbal of a slider arm at a position position thereof corresponding to the position of the center of gravity thereof or to a position in the proximity of the position of the center of gravity. The slider arm is supported for pivotal motion on a head arm at a position thereof corresponding to the position of the center of gravity thereof or to a position in the proximity of the position of the center of gravity. A coil spring is interposed between the head arm and the sliding element of the magnetic head body.
Patent CA-2085665-A1 (CA)
Title: Thiocarboxylic acid derivatives, their preparation and intermediates for their preparation
Inventor: BAUMANN ERNST
IPC: A01N43/54
Filed: 1992-12-17
Abstract: - 46 -          O.Z. 0050/42974 Abstract of the Disclosure:  Thiocarboxylic acid deriva-tives useful as herbicides or plant growth regulators are of the general formula I             I   where R1 is unsubstituted or substituted alkyl, unsubstituted or substituted cycloalkyl or cycloalkenyl, unsubstituted or substituted alkenyl or alkynyl or unsubstituted or substituted phenyl; R2 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio; X is nitrogen or CR6, where R6 is hydrogen or, together with R3, forms a C3- or C4-alkylene chain or C3- or C4-alkenylene chain in which a methylene group is replaced with oxygen; R3 is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio or R3 is bonded to R6 as stated above to give a 5-membered or 6-membered ring; R4 is unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl or alkynyl, an unsubstituted or substituted 5-membered or 6-membered heteroaromatic structure containing from one to three nitrogen atoms and/or one sulfur or oxygen atom, or unsubstituted or substituted phenyl or naphthyl; R4 and R5 together with the adjacent carbon atom form a 3-membered to 6-membered ring which may contain an oxygen or sulfur atom and may be substituted; R5 is hydrogen, alkyl, haloalkyl, alkoxy, haloalkoxy, or alkylthio; and Y and Z are each oxygen or sulfur.
Patent CA-2088049-A1 (CA)
Title: Carbon black and rubber composition containing same
Inventor: SOEDA MIZUO
IPC: C08L21/00
Filed: 1991-07-24
Abstract: New carbon blacks that when incorporated into rubber compositions impart increased abrasion resistance and lower hys-teresis. Also disclosed are rubber composition incorporating the novel carbon blacks.
Patent CA-2088468-A1 (CA)
Title: Composite Hockey Stick Shaft and Process for Making Same
Inventor: CALAPP DAVID E
IPC: B29C70/46
Filed: 1993-01-29
Abstract: A composite hockey stick shaft adapted for receiving a replacement blade. The composite shaft includes a shaft body formed of a resin material and embodying a spirally wound plurality of filaments embedded in the resin material. The present invention also relates to a process for making such a composite hockey stick shaft.
Patent CA-2089490-A1 (CA)
Title: Method for displaying multitone images
Inventor: KNOLL THOMAS
IPC: B41F33/02
Filed: 1992-06-12
Abstract: The method of displaying multitone images beginning with a grayscale original image capable of displaying a specific number of gray levels, which includes the steps of: selecting a plurality of colors from the image, one for each of the multitones, each having a color value; selecting a plurality of transfer functions, one for each of the selected colors; converting each of the shades of gray, using the respective color values and the transfer functions, into a new color value; and displaying the resultant multitone image on a video display terminal using the new color values in place of the shades of gray. The displayed image may be printed using one printing plate for each of the selected colors, and using the same transfer functions to convert the shades of gray to new gray values which are subsequently converted into halftone dots for each printing plate.
Patent CA-2090691-A1 (CA)
Title: Manufacturing automation protocol interface unit for industrial programmable logic controllers
Inventor: RUEHLE LYLE L
IPC: G05B19/05
Filed: 1991-08-21
Abstract: A Manufacturing Automation Protocol (MAP) interface unit couples a local area network (LAN) to a MAP network. The LAN includes a plurality of industrial programmable logic controllers (PLCs) and the MAP network includes a plurality of MAP devices.    The MAP interface unit comprises a CPU for performing a plurality of routines. A first routine controls the coupling of the MAP interface unit to the MAP network and a second routine controls the coupling of the MAP interface unit to the LAN. A further routine disposed between the first coupling routine and the second coupling routine converts messages from the MAP devices on the MAP network to messages to the PLCs on the LAN and converts messages from the PLCs to messages to the MAP devices.    These messages are either requests for data or responses with data to these requests.
Patent CA-2091785-A1 (CA)
Inventor: SCHILLING DONALD L
IPC: H04B1/707
Filed: 1991-12-10
Abstract: A spread spectrum communications system for use over a communication channel, including a transmitter-generic-chip-code generator (101), a transmitter-message-chip-code generator (102), an EXCLUSIVE-OR gate (103), a combiner (104), a transmitter (107), a receiver-generic-chip-code generator (121), a receiver-generic mixer (123), a generic-bandpass filter (125), a receiver-message-chip-code generator (122), a receiver-message mixer (124), a message-bandpass filter (126), and a synchronous detector (139). The transmitter-generic-chip-code generator (101) generates a generic-chip-code signal and the transmitter-message-chip-code generator (102) generates a message-chip-code signal. The EXCLUSIVE-OR gate (103) spread-spectrum processes message data with the message-chip-code signal to generate a spread-spectrum signal. The combiner (104) combines the generic-chip-code signal with the spread-spectrum signal. The transmitter (107) transmits the combined generic-chip-code signal and spread-spectrum signal, on a carrier signal (108) over the communications channel as a spread-spectrum-communications signal. The receiver-generic-chip-code generator (121) generates a replica of the generic-chip-code signal. The generic mixer (123) recovers the carrier signal from the spread-spectrum-communications signal. The receiver-message-chip-code generator (122) generates a replica of the message-chip-code signal. The receiver-message mixer (124) despreads the spread-spectrum-communications signal as a modulated-data signal. The tracking and acquisition circuit (121) uses the recovered carrier signal for synchronizing the replicas of the generic-chip-code signal to the recovered carrier signal.    The synchronous detector (139) synchronously demodulates the modulated-data signal as received data.
Patent CA-2093078-A1 (CA)
Title: 2-substituted tertiary carbinol derivatives of 1,5-iminosugars
Inventor: KHANNA ISH K
IPC: C07D491/056
Filed: 1993-03-31
Abstract: Novel 2-alkyl carbinol derivatives of deoxynojirimycin (DNJ) and the chemical synthesis of these derivatives and intermediates therefor from DNJ and their method of inhibiting lentiviruses are disclosed.