baber/WOPTO huggingface dataset:
Patent ES-259814-A1 (ES)
Title: Hydroxy-containing hemi-acetals, their preparation and use
IPC: D21H17/06
Filed: 1960-07-22
Abstract: Hemi-acetals of general formula <FORM:0919720/IV(a)/1> in which R is an alkylene radical, preferably containing 1-3 carbon atoms, x and y are integers of 1-5, n is an integer of at least 2 and R1 is a hydrogen or an alkyl group, at least one of the R1 groups being hydrogen, or alternatively two of the -OR1 groups may be removed and the remaining radicals joined together through an oxygen atom to form a cyclic structure or a carbonyl group, may be used to produce resinous materials. They may be reacted with polyhydric alcohols such as pentaerythritol, diand polypentaerythritols and the resulting product reacted with a polyisocyanate such as an arylene diisocyanate. Alternatively the hemiacetals may be reacted with phenols and the products subsequently reacted with epichlorohydrin in the presence of an alkali to form new epoxy resins.ALSO:Hydroxy-containing hemi-acetals are prepared by reacting under acidic conditions: (1) an aldehyde in which there is attached to the a - or b -carbon atom relative to the aldehyde group a hydroxyl, alkyl-sec.-amino-, primary amino or mercapto group, or an aliphatic carbon-carbon unsaturated linkage and (2) a dissimilar aldehyde containing no reactive group other than the aldehyde group. Suitable aldehydes of type (1) are, for example, hydroxy adipaldehyde, hydroxy succinaldehyde, 2-hydroxy propionaldehyde, 3-hydroxy propionaldehyde, 3-aminopropionaldehyde, 2-hydroxy-butyraldehyde, 3-hydroxybutyraldehyde, 3-mercaptopropionaldehyde, 3-mercaptobutyraldehyde, 3 - aminopentanal, 3 - mercaptopentanal, 2-mercaptohexanal, 3-aminodecanal, 3-hydroxycyclohexanal, acrolein, methacrolein, crotonaldehyde, a -phenylacrolein, a -cyclohexyl-acrolein, 2-pentenal, 3-hexenal, 2-decenal, 2-cyclohexenal and 2-hydroxy-3-mercapto-tetradecanal. The preferred aldehyde of type (2) is formaldehyde and formaldehyde precursors such as formalin, paraformaldehyde, trioxane and methalal but other suitable aldehydes are acetaldehyde, butyraldehyde, pentanal, hexanal, octanal, dodecanal, cyclohexanal, 2,4-dimethyl-cyclohexanal, glyoxal, succinaldehyde, 1,8-octanedial, benzaldehyde, adipaldehyde and 3,5-diethylhexanal. The reaction is preferably carried out in the presence of water and/or one or more alcohols. The products of the process are hydroxy-containing hemi-acetals having the general formula <FORM:0919720/IV (b)/1> in which R is an alkylene radical, preferably containing 1-3 carbon atoms, x and y are integers of from 1 to 5, n is an integer of at least 2 and R1 is hydrogen or an alkyl group, at least one of the R1 groups being hydrogen alternatively two of the -OR1 groups may be removed and the remaining radicals joined through an oxygen atom to form a cyclic structure or a carbonyl group. In addition there may be obtained small amounts of the following compounds:- <FORM:0919720/IV (b)/2> in which R is an alkylene radical, x is 1-5, and n is at least 2.
Patent ES-261588-A1 (ES)
Title: Preparation of hydroquinone derivatives
IPC: C07C46/06
Filed: 1960-10-08
Abstract: A process for the manufacture of 2,3-dimethoxy - 5 - methyl - benzhydroquinone - 1,4 derivatives of the general formula <FORM:0896719/IV (b)/1> in which R represents a hydrogen atom or a lower acyl group (e.g. formyl, acetyl, propionyl or benzoyl) and n represents the number 9 or 10, and of the corresponding quinones, comprises condensing by heating 2,3-dimethoxy-5-methyl-benzhydroquinone or a 4-acyl derivative thereof, with 3, 7, 11, 15, 19, 23, 27, 31, 35 - nonamethyl - hexatriacontanonaen - (2, 6, 10, 14, 18, 22, 26, 30, 34) - ol - 1, 3, 7, 11, 15, 19, 23, 27, 31, 35, 39 - decamethyltetracontadecaen - (1, 6, 10, 14, 18, 22, 26, 30, 34, 38) - ol - 3 or 3, 7, 11, 15, 19, 23, 27, 31, 35, 39 - decamethyltetracontadecaen - (2, 6, 10, 14, 18, 22, 26, 30, 34, 38) - ol - 1 or a lower alkoxide or alkanoate of any of these alcohols, in the absence of a solvent and in the presence of an acidic condensing agent, and if desired, oxidising the resulting product (after hydrolysis of the 4-acyl group) to the corresponding benzoquinone product. The condensation may be carried out by mixing the reactants together with the condensing agent, e.g. zinc chloride mixed with glacial acetic acid, in a solvent such as ether removing the solvent and heating the residue to about 50 DEG C. The examples illustrate the use of each of the three alcohols specified and the silver oxide oxidation of the hydroquinone product. The nonamethyl hexatriacontanonaenol specified above is obtained by extracting tobacco dust with petroleum ether and hydrolyzing the extract with methanolic potassium hydroxide. The novel decamethyl tetracontadecaenols specified above are prepared by converting the nonamethyl hexatriacontanonaenol to the corresponding bromide, reacting the bromide with ethyl acetoacetate to give 6,10,14,18,22,26,30,34,38-nonamethyl - nonatriacontanonaen - (5, 9, 13, 17, 21, 25, 29, 33, 37) - one - 2, reacting the ketone with sodium acetylide to give 3, 7, 11, 15, 19, 23, 27, 31, 35, 39 - decamethyl - tetracontanonaen - 6, 10, 14, 18, 22, 26, 30, 34, 38) - yn - 1 - ol 3 and hydrogenating the acetylenic alcohol over a Lindlar catalyst to give 3,7,11,15,19,23,27,31,35,39 - decamethyl - tetracontadecaen - (1, 6, 10, 14, 18, 22, 26, 30, 34, 38) - ol - 3. This tertiary alcohol may be converted to the isomeric primary alcohol, 3, 7, 11, 15, 19, 23, 27, 31, 35, 39 - decamethyl - tetracontadecaen - (2, 6, 10, 14, 18, 22, 26, 30, 34, 38) - ol - 1 by convertion to the corresponding bromide, reaction with potassium acetate and alkaline hydrolysis of the ester.
Patent ES-270354-A1 (ES)
Title: Process for preparing thermally stable polyoxymethylenes
IPC: C08G2/30
Filed: 1961-08-10
Abstract: High molecular weight polyoxymethylenes obtained by polymerizing anhydrous formaldehyde are stabilized by treatment at the end of polymerization and at 0 DEG to +50 DEG C. with an agent forming stable terminal groups therein. The agent may be added to the polymer mix at the end of the polymerization in the same reactor and its reaction may take place for 3 to 60 minutes. Specified blocking agents are carbon dioxide, carbon disulphide, urea, thiourea, acetic, propionic, phthalic or benzoic anhydride, hydroquinone, and hydroquinone monobenzyl or monomethyl ether. A solvent, e.g. benzene, and n-heptane may be present as may also antioxidants diphenylamine and 4,41-butylidene-bis(6-t-butyl-3-methyl-phenol).
Patent ES-271796-A1 (ES)
Title: 17alpha-ethynyl-17beta-hydroxy-a-nor-b-homoestranes and their process of preparation
IPC: C07J19/00
Filed: 1961-11-06
Abstract: The invention comprises 17a -ethynyl-17b -hydroxy-A-nor-B-homo-5#x, 10#x-estrane-3,6-dione A-nor-B-homo-5#x, 10#x-estrane-3, 6, 17-trione, enolic tautomers thereof and processes for the preparation thereof by subjecting A-nor-B-homo-estr-5(10)-ene-3, 6, 17-trione to reduction by an alkali metal borohydride in an acid medium so as to saturate the double bond at the 5(10)-position thereof and thus to form A-nor-B-homo-estrane 3,6,17-trione, ethynylating the latter selectively at 17-position by reaction with acetylene in an alkaline medium so as to obtain 17a -ethynyl-17b -hydroxy-A-nor-B-homo-5#x, 10#x-estrane-3, 6-dione. Specification 965,712 is referred to.
Patent ES-295600-A1 (ES)
Title: Gas-fractionating column with a gauze filter
IPC: B01D46/30
Filed: 1964-01-22
Abstract: Prior to rectification in a column 5, 6, Fig. 1 (not shown), air admitted through inlets 11 to a casing 10 is freed of water vapour and carbon dioxide by solidification and collection on a metal gauze 8 in thermal contact with a cage of tubes 2 depending from the boiler 1 of the column and hydrocarbons and nitrous oxide vapours are solidified and collected on spaced metal gauzes 18 within an annular space formed by the lower column portion 5 and a surrounding tube the upper gauzes 18 being in thermal contact with a trough 23 of washing liquid leaving the upper portion 6 of the column and supplied thereto through a duct 19 connected to the boiler 1 and cooled by a cold gas refrigerator. Both column portions 5, 6 are packed with rings 30, 31 above which are located liquid distributers 20, 21. Product oxygen gas is discharged through a duct 9.
Patent ES-298235-A1 (ES)
Title: Propulsion unit for descaling apparatus
IPC: F16L55/38
Filed: 1964-04-02
Abstract: A propulsion unit for use with de-scaling apparatus for pipes comprises two propulsion devices 3, 5 mounted on a shaft 1, and between those devices, a device for centering the unit within the pipe. Each device 3, 5 is substantially circular and is provided with a plurality of rearwardly inclined and angularly, equidistant flexible sectors 56 secured to a plate 38, the peripheral edges of the sectors being adapted to be in contact with the inner surface of the pipe. A space between the sides of adjacent sectors allows the passage of water and the devices 3, 5 are arranged such that by the effect of water under pressure, the sectors are alternately forced abruptly against the plates 38 whereby a succession of blows is impacted to the unit, the said blows acting to increase the propulsive force exerted on the unit. The sectors 56 may be of leather or nylon sheets 48 interleaved with steel plates and have secured thereto a heavy plate 50 the plates 38 are formed with holes leading into radial chambers having outlets 41, the latter in the device 3 being fitted with nozzles 42. The centring devices each comprise rollers 16 mounted on flexible blades 15 and consisting of sets of discs each having a zig-zag peripheral rib the arms 15 of one device are angularly displaced relative to the arms 21 of the other device, and the pressure of the rollers against the inner surface of the pipe is regulated by screws 27 which cause interconnected plates 23, 24 to urge the arms 15, 21 upwards or downwards.
Patent ES-321023-A1 (ES)
Title: A method of reducing the amplitude of waves in water
IPC: E02B3/06
Filed: 1965-12-21
Abstract: A breakwater device consists of a casing which defines a number of open ended chambers extending from end to end of said chambers in the same direction and is moored in the water with the direction of the chambers lying in the direction of propagation of the waves. In the parallelpipedic casing shown two open ended chambers extending from end to end of the chambers in the same direction are provided between the upper and lower faces 1 and 2 of the casing and the intermediate partition 7. A second embodiment described consists of a cylindrical casing inside which is a nest of seven cylindrical tubes of circular section.
Patent ES-336950-A1 (ES)
Title: Improvements in or relating to master cylinders.
IPC: B60T11/16
Filed: 1967-02-17
Abstract: In a master cylinder 10 comprising a piston 14 slidably mounted in the master cylinder bore 12 and adapted to be supported in its normal position against an annular stop means in the form of a washer 30 located at the rear end of the master cylinder, the rear face of the piston is provided with a recess 22 adapted to receive the enlarged head 26 of a push-rod 28, the dimensions of the push-rod head and the inner opening of the annular stop member 30 being such that the push-rod may be disengaged from the recess in the piston without removal of the annular stop means 30. The head 26 of the push-rod 28 comprises a frusto-conical surface 46 extending into a part spherical surface 48, the largest radial dimension of the head 26 of the push-rod 28 being equal to R and the head 26 is connected to the push-rod 28 by means of a frusto-conical portion 50. The aperture in the annular stop means 30 takes the form of the shape shown in Fig. 2, having a lower partcircular portion 45 at a radius r1 from the centre of the push-rod 28 and an upper part-circular portion 52 of radius R1 taken from a centre offset in a radial direction from the axis of the central opening 44. The part-circular portion 52 terminates in parallel sided portions 56 which are connected to the part-circular section 54 by the sides 58.
Patent ES-350357-A1 (ES)
Title: Spinneret for conjugate spinning
IPC: D01D5/32
Filed: 1968-02-10
Abstract: A spinneret for manufacturing conjugate filaments of two polymeric materials having a uniformity of at least 95% comprises two reservoirs 1 and 2 separated by a partition wall 3 of uniform thickness and mutually interconnected by a plurality of straight channels 4 perpendicular to the partition wall and arranged at uniform intervals along the wall, a plurality of ducts 5 perpendicular to the channels each having an inlet in one of the channels and an outlet at one of the orifices 6, the orifices being arranged in a zig-zag formation and the inlets of the ducts being at positions on the channels which are not equidistant from the two reservoirs, the dimensional parameters of the channels, ducts and orifices satisfying the following formula where: l 5 is the length in mm. of the duct l 6 is the depth in mm. of the orifice, x and y is the length of the channel from the nearest and farthest reservoir, respectively, to an inlet of the duct, K 1 is a shape factor of the channel and duct and K 2 is a shape factor of the orifice and channel. Formul[mu] for K 1 and K 2 are derived for spinnerets having (i) circular channels, ducts and orifices, (ii) polygonal channels and circular ducts and orifices, (iii) rectangular channels and circular ducts and orifices, (iv) circular channels and ducts, and orifices composed of a plurality of small holes of different radius, (v) rectangular channel, circular duct, and orifices composed of a plurality of small holes, (vi) circular channels and ducts, and orifices composed of various shapes of slits, (vii) rectangular channel, circular duct and Y-type slit. The reservoirs may be arranged in a side-byside relation with the partition wall having plane parallel sides as in Fig. 2 or the reservoirs may be arranged concentrically, as in Fig. 7, with an annular partition wall. Examples are given using nylon 6 and nylon 6 containing TiO 2 as a pigment for forming the conjugate filament.
Patent ES-351048-A1 (ES)
Title: Water treatment apparatus
IPC: C02F1/68
Filed: 1968-02-28
Abstract: Apparatus for diluting bromine see also Fig.1, (not shown) consists of one or two vessels 1, 11 for bromine and a dilution vessel 2. Water is first admitted by valve 3 to vessels 1, 11 and forms a brominated water which passes to vessel 2. Valve 3 is then closed and valves 4, 5 opened to admit water to 2 at two different levels whereby a highly diluted brominated water is discharged at 15. The valves 4, 5 may be replaced by a single valve or by a self-operated pressure regulator. The valves may be operated manually or by a system which can be adjusted manually to vary the frequency and/or period of operation, or operated by a tuning mechanism. In the embodiment shown the bromine content of water in a swimming pool 16 circulating in a filtering circuit 20, 21 is measured continuously by withdrawing a sample at 23 and passing it through a measuring device M (see Division G1) which actuates an electronic or electro-mechanical' dosimeter D which operates the valves for periods and at intervals determined by whether the bromine concentration is above, below or equal to the desired level.
Patent ES-359730-A1 (ES)
Title: Polymeric compositions
IPC: D06P3/79
Filed: 1968-10-30
Abstract: Compositions for the preparation of dyeableshaped articles comprise (1) a film or fibreforming polymer, (2) an epichlorohydrin/amine polycondensate and (3) a polyamide, polyether, polyester, olefin polymer, vinyl pyridine polymer or modified epoxy resin of molecular weight greater than 1000. Specified components are (1) crystalline polyolefins and fibre-forming acrylic and vinyl polymers, (2) N,N1-dicyclohexylhexamethylene - diamine / epichlorohydrin/ piperazine condensates and (3) polylaurolactam, polycaprolactam, polyhexamethylene adipamide, dimerized fatty acid/polyalkylene polyamine condensates, ethylene and propylene polymers, polymers of isobutyl, methyl, methyl and butyl and butyl and isobutyl methacrylates, polyethylene sebacate, polypropylene sebacate, polyvinyl alkyl ethers, amine modified epoxy resins, polymers and copolymers of 2-vinyl pyridine and 2-methyl-5-vinyl pyridine, and styrene / 2 - vinyl pyridine copolymers. The compositions may also comprise opacifiers, dyes, pigments, stabilizers and lubricants. In examples fibres are spun from compositions comprising polypropylene, a polycondensate of N,N1 - dicyclohexamethylene diamine, epichlorohydrin and piperazine, and (1) polyethylene, (2) polylaurolactam, (3) polyethylene sebacate, (4) polyvinyl isobutyl ether, (5) a reaction product of n-octadecylamine and an epichlorohydrin/bisphenol A resin and (6) polyvinyl pyridine.
Patent ES-363813-A1 (ES)
Title: Polyester textile materials and their production
IPC: D02J1/22
Filed: 1969-02-19
Abstract: A textile article as described and claimed in copending Specification 1,245,361 is further characterized in that all the zones in each filament have a positive degree of crystallinity. A process for making a textile article as above comprises, as the sole stretching operation, partially stretching the yarn in contact with a crack-promoting agent e.g. hydroxylated compound in an aqueous solution or an aqueous lower alcohol, and subjecting the stretched yarn to a relaxation treatment in at least two stages, at least the last of which is accompanied by a heat treatment. In a preferred embodiment yarn 3 is fed from a bobbin 2 on a creel 1 by means of feed rollers 4, 5 and passed through a vat 7 containing the crack-promoting agent. During passage through the vat the yarn is stretched by means of rollers 8, 9 rotating at a faster peripheral speed than the rollers 4, 5. From the rollers 8, 9 the stretched yarn passes a heater 12 and a first set of relaxation rollers 10, 11, before passing to a second heater 13 and a second set of relaxation rollers 14, 15 and being wound at 16. Each relaxation stage is preferably accompanied by a heat treatment, the last such heat treatment preferably being a shock heat treatment. At some stage after the stretching the yarn may be dyed. In a preferred embodiment, a polyethylene terephthalate multifilament yarn is stretched in an aqueous bath containing 25% ethanol at ambient temperature and is then relaxed to various degrees at various temperatures of the plate 12. The yarn is thereafter heat treated in a completely relaxed state by immersing it in water at 40 C., progressively raising the temperature of the water to 100 C. and keeping the yarn at this temperature for 5 minutes. The yarn is then dried without tension while freely exposed to the air and then heated in an oven for 5 minutes at 180 C.
Patent ES-367778-A1 (ES)
Title: Stabilized voltage-step-down circuit arrangement
IPC: H04N5/63
Filed: 1969-05-17
Abstract: A rectified supply voltage from an AC utility outlet is chopped under the control of a recurrent pulse in the load circuit, specifically the flyback pulse of the horizontal sweep circuit of a television receiver, with the aid of a normally blocked chopping transistor connected to be unblocked by an intermittent biasing current from a secondary winding of a transformer whose primary winding acts as an inductance of a smoothing network for the chopped supply voltage. The resultant reduced output voltage is stabilized by the provision of a Zener diode in the input of either the chopping transistor or an ancillary transistor in series therewith.
Patent ES-369024-A1 (ES)
Title: Textile softening and optical brightening compositions
IPC: D06L4/657
Filed: 1969-07-01
Abstract: A textile softening agent comprises a salt of a surface-active ammonium compound and a cationic optical brightener of the formula: where X represents -SO 2 NH 2 , -SO 2 R, -SO 2 OR, -COOR, -CONH 2 , -CN, -CF 3 , halogen, OR or R X' represents halogen, OR or R Y represents: or Y' represents H, R or an unsubstituted phenyl radical Z represents H or Y Z' represents H or R R represents a C 1-4 alkyl radical R' represents H or R R" represents R or -(CH 2 ) n-1 CH 2 OH n is 2, 3 or 4 and A- is an anion of an acid. The proportion by weight of brightener to ammonium compound may be 25:75 to 0.5:99.5. The agent may be used as an aqueous dispersion containing 3-15% by weight of the ammonium compound. The agent may also comprise dyestuffs, preservatives, perfumes and stabilising agents.
Patent ES-373249-A1 (ES)
Title: Communications cables having reduced interference characteristics
IPC: H04B3/28
Filed: 1969-11-06
Abstract: Interference in telecommunication cables from neighbouring power circuits is reduced by applying the potential difference between a conductor of the core and the sheath, or earth, to the input of an amplifier whose output is so applied, having regard to phase constant and amplitude between the sheath and earth, that the potential difference between the core and sheath is reduced. The embodiment shown in Fig. 1 is intended for previously made lengths of cable which subsequently come within the influence of power equipment. A single conductor 1 has its voltage with respect to sheath 2 fed to the input of an amplifier 3. The output terminals of the amplifier are connected to earth and to the sheath respectively. Other embodiments are described that have inputs with respect to earth, or have a number of the devices distributed along the cable with inputs connected to the core and outputs connected to the sheath, or have transformers (isolating or step down transformers) with their screened windings connected to the sheath.
Patent ES-397612-A1 (ES)
Title: N-(6)-aralkyl-adenosine compounds
IPC: C07D487/04
Filed: 1971-12-02
Abstract: Novel N(6)-Aralkyl-Adenosine Compounds of the formula WHEREIN R1 is hydrogen, halogen or hydroxyl R2 is hydrogen, halogen, hydroxyl, alkyl or alkoxy R3 is hydroxyl, amino, alkoxy, alkylamino or dialkylamino and X is straight or branched-chain alkylene containing up to 3 carbon atoms and the physiologically compatible salts thereof, ARE OUTSTANDINGLY EFFECTIVE IN PRODUCING A PROLONGED CORONARY VASODILATING EFFECT, AND FURTHERMORE, ARE EFFECTIVE IN DEPRESSING SERUM LIPIDS.
Patent ES-403103-A1 (ES)
Title: Rolling mill
IPC: B21B31/10
Filed: 1972-05-23
Abstract: The present disclosure relates to an apparatus for allowing the rolls of a rolling mill to be quickly removed from and replaced into the mill stand. It provides a pair of bars for interconnecting the opposite bearing chocks of one of the rolls, all four elements of which are provided with wheels. The wheels are supported by two pivotal rails that extend between the housings of the mill. The rails during operation of the mill are positioned away from the bars, but, when the rolls are to be changed, they are positioned under the bars. The rolls are received in front of the mill by a side shifter having three discrete and spaced-apart support areas that support two roll-carrying platforms. Because of the spacing of the areas, the platforms have movable liners that span the spaces. A central area is movable axially of the mill for removing both the work rolls and the backup rolls from a position in front of the mill to a position remote relative thereto.
Patent ES-404775-A1 (ES)
Title: Mixing type liquid dispenser
IPC: B65D83/14
Filed: 1972-07-12
Abstract: A dispenser comprising a can containing pressurized liquid and having a valve and valve housing therefor at its outlet opening, to control the discharge. Carried by the valve housing and disposed inside the can is a projecting nipple to which there is attached the neck of a collapsible container, the latter having flexible walls and a product therein which is pressurized due to the pressure existing against the flexible container walls. A second valve controls flow through the nipple, and thus the out-flow of product from the container is effected by the pressure against the walls thereof. In this environment the invention embraces extending the nipple within said container past the inner end of the neck thereof, and attaching to said extended or terminal end a hollow or apertured retainer cap which serves to positively maintain the container neck on the nipple against dislodgement therefrom, and to establish a leakproof seal.