baber/WOPTO huggingface dataset:
Patent ZA-93760-B (ZA)
Title: The preparation of E-oxime ethers of phenylglyoxylic esters
Inventor: ISAK HEINZ
IPC: C07C249/08
Filed: 1993-02-04
Abstract: The present invention relates to a process for the preparation of E-oxime ethers of phenylglyoxylic esters of the general formula I <IMAGE> in which X and Y denote halogen, alkyl, alkoxy, CF3, C(=NOR)R (R = alkyl and alkenyl), by reacting oximes of the formula II <IMAGE> with a methylating agent in an organic diluent, and process for the preparation of E-oximes of phenylglyoxylic esters of the formula II by isomerising the E/Z oximes.
Patent ZA-96540-B (ZA)
Title: Phosphonoacetic acid derivatives and their use for treating degenerative joint disorders
Inventor: GRAEVE ROLF
IPC: C07F9/38
Filed: 1996-01-24
Abstract: Medicaments contg. an amino-, cyano- or carboxy-substd. phenylalkane- or phenylalkene-phosphonic acid deriv. of formula (I) and/or its salt and/or stereoisomer are claimed. R1, R2 = R' or R"; or R1+R2 = OCH2O or OCH2CH2O; R3 = H or as for R2; R5 = CN, CH2NHR9 or COOR10; or R1+R5 are bonded, to give a bicyclic cpd. of formula (Ia); R6, R7 = H or 1-6C alkyl; or R1+R7 are bonded, to give a bicyclic cpd. of formula (Ib); R' = OH, 1-12C alkoxy (opt. monosubstd. by COOH or CO-O-(1-12C) alkyl), 3-12C cycloalkoxy, 3-6C alkenyloxy, 1-3Calkoxy( substd. by 5-7C cycloalkyl, heteroaryl (where the heteroatoms are N, S and/or O), Het or phenyl), benzyloxy (mono- to tri-substd. by halomethyl or 1-3C alkoxy) or phenoxy (mono- to tri-substd. by 1-3C alkoxy); R" = OCOR8, OSO2R8, OCH2P(O)(OR8)2 or substd. phenylmethoxy of formula (a); Het = 5 or 6 membered heterocycloalkyl (where the heteroatoms are N, S and/or O, opt. mono- to tri-substd. by 1-3C alkyl); R8 = H or 1-4C alkyl; R9 = H or 2-4C alkanoyl; R10 = H, 1-6C alkyl (opt. substd. by 1-4 of COOH, (1-3C) alkoxy-carbonyl, N(R)2 or morpholino) or trialkylsilyl; R = H or 1-3C alkyl; X-A = (CH=CH-CH=CH-CH) (sic), (CH2CH2CH2CH2CH), (CH2CH2CH2CH2CH), (CH2CH) or (CH=C); heteroatoms are N, S and/or O. Cpds. (I) and their salts and stereoisomers are new, provided that: (1) if R5 = CN, then at most one of R1-R3 = OH; (2) if R10 = H, then none of R1-R3 = OH; (3) if R10 = Me, Et or t-Bu, then R1-R3 are not OMe; (4) the O,O-dimethyl and O,O-diethyl esters of 1-(ethoxycarbonyl)-2-(3,4-methylenedioxyphenyl)-ethanephosphonic acid are excluded; (5) X-A is not (CH2)4CH or (CH=CH-CH=CH-CH); and (6) X-A may also be (CH=CH-CH=C).
Patent AT-400757-B (AT)
Title: Ignition device for a burner arranged in a combustion chamber surrounded by a wall
IPC: F24C3/10
Filed: 1992-07-13
Granted: 1996-03-25
Abstract: Ignition device for a burner which is arranged in a combustion chamber surrounded by a wall and which has a burner plate which is provided with fuel-mixture outlet orifices and which closes off a mixing space which is surrounded by a housing and on which acts a blower mixing gas with air, the ignition device having an electrode which is capable of being applied to a voltage and projects into the combustion space and which is embedded in a holding part produced from insulating material. So that such an ignition device can be installed in a heating arrangement in a simple way, there is provision for the holding part 8 to pass through the housing 5 and, if appropriate, the burner plate 1. <IMAGE>
Patent AT-403158-B (AT)
Title: Conveying chain
IPC: B65G45/08
Filed: 1994-12-06
Granted: 1997-11-25
Abstract: A conveying chain 1 comprising links or link groups 2a, b; 11a, b and 3a, b, c; 12a, b; 18a, b which follow alternately one after the other and are connected to one another in an articulated manner via bolts 4, and formed in the bolts 4 are depressions 7 which extend essentially in the longitudinal direction of said bolts, over the entire length of the same, and are open on both sides. <IMAGE>
Patent AT-396796-B (AT)
Title: Manhole cover
IPC: E02D29/14
Filed: 1991-11-26
Granted: 1993-11-25
Abstract: In a manhole cover having one or more insert lids 26 which can be joined in sequence and are intended for a built-in frame 1 defining the manhole edges, the built-in frame 1 consists of elements 3 - 8 which can be assembled like a modular system and is composed of extruded profiles. The extruded profiles each have a side flange 19, a tubular profile 11 for accommodating push-in connectors, and a supporting flange 25. Each lid 26 has an outer frame likewise formed from extruded profiles 35, 36, 37 and having a fillet 38 for accommodating a seal 39. Fastening screws 43 for the lids 26 engage in nuts 14 held in the tubular profiles 11. When the lids 26 are joined in sequence, transverse members 27, if required, are put in between parallel legs of the built-in frame 1 in a sealed-off manner, the transverse members 27 having mating surfaces for the seals 39. <IMAGE>
Patent AT-379677-B (AT)
Inventor: RABITSCH HERMANN DIPL ING DR
IPC: F23L15/00
Filed: 1983-10-27
Granted: 1986-02-10
Abstract: 1. A process of thermally treating flue gases which come from a boiler system and are conducted through two series-connected flue gas aftertreating plants, wherein the second flue gas aftertreating plant is an NOx -removing plant and is operated at a higher flue gas temperature than the first flue gas aftertreating plant, and of thermally treating combustion air to be supplied to the boiler system, characterized in that heat of the flue gases is used to reheat the flue gases and to preheat air.
Patent AT-380008-B (AT)
Inventor: SAJTOS ALEXANDER DIPL ING
IPC: C07C69/716
Filed: 1983-12-23
Granted: 1986-03-25
Abstract: The invention relates to a process for the preparation of monocarbonyl or biscarbonyl compounds by reacting organic carbon compounds having one or more olefinic or aromatic double bonds in the molecule with the equivalent amount of ozone and by subsequently catalytically hydrogenating the ozonization products, wherein the peroxide-containing ozonization solution is fed continuously into a suspension of the hydrogenation catalyst in a lower aliphatic alcohol, while a peroxide content of not more than 0.1 mole/l is maintained, and the ozonization products are continuously cleaved reductively to give the corresponding carbonyl compounds.
Patent CH-613354-B (CH)
Inventor: BOURQUARD PIERRE
IPC: G04D1/02
Filed: 1977-06-23
Abstract: The tool comprises at least two steel cups (2, 3), one of which can fit into the other. The bar (5) to be arched is placed between the cups and a pressure (P) is exerted on one of the cups. The cups have equal or different radii of curvature. <IMAGE>
Patent CH-615554-B (CH)
Inventor: VIGNON LOUIS
IPC: D01H4/00
Filed: 1978-09-05
Abstract: The object of the process is to produce a yarn comprising a core of continuous filament and a sheath of staple fibers. The staple fibers are delivered to a suction surface comprising a perforated collecting surface exposed to relative suction in a suction zone, the fibers being conveyed in a current of air moving virtually at right angles to the surfaces of two counter-rotating friction discs having narrowly spaced opposing faces defining a gap. From the suction zone, the staple fibers are transferred, generally at right angles to the axis of the current of air, into the gap. The continuous filament is united with the staple fibers in the suction zone, and both components are twisted in the gap between the counter-rotating friction discs.
Patent DK-156196-B (DK)
Inventor: BALLANY JOHN M
IPC: A61K31/425
Filed: 1982-03-23
Abstract: A pour-on composition for combating helmintic infestations in non-human animals comprising from 4 to 30%; by weight of dl- and or 1-2,3,4,5,6-tetrahydro-6-phenyl imidazo[2,1-b]thiazole in a liquid medium, said medium comprising at least 50% by weight of one or more alcohols of the formula  HO-(CH2-CH2-O)m-R (I) wherein m is the integer 1, 2 or 3; and R is a lower alkyl radical, and a method of preparing such a composition.
Patent DK-162697-B (DK)
Inventor: POWELL DAVID R
IPC: A61K9/22
Filed: 1984-07-06
Abstract: A new class of solid pharmaceutical formulations enables the attainment of slow, zero order in vivo release of a wide range of pharmaceutically active ingredients upon oral administration. A broad range of release rates can be preselected by suitable adjustments of tablet properties. The formulations are based upon control of active ingredient release from the surface of the tablet via a controlled surface erosion mechanism. These compositions comprise:(a) an effective amount in the range of 10-90 wt. % of a pharmacologically active compound having a water solubility (20' C.) of 1/5-1/1000 (w/w);(b) 1-40 wt. % of a compound which is pharmaceutically acceptable in oral compositions and has a water solubility (20° C.) of 1/1-1/40 (w/w);(c) 2-20 wt. % of a compound which is pharmaceutically acceptable in oral compositions and has a water solubility (20° C.) of 1/1-1/10 (w/w);(d) an amount in the range of 0.05-1.0 wt. % of a disintegrating agent for pharmaceutical compositions, at which amount the compound is ineffective as a disintegrating agent;(e) 0.1-2.0wt.. % of a surfactant which is pharmaceutically acceptable in oral compositions; and, as necessary for tablet manufacturing purposes;(f) 1-20 wt. % of a binder which is pharmaceutically acceptable in oral compositions; or(g) 0.5-5.0 wt. % of a die wall lubricant which is pharmaceutically acceptable in oral compositions.
Patent DK-159118-B (DK)
Inventor: ANNEN KLAUS
IPC: C07J5/00
Filed: 1983-12-23
Abstract: Novel 6 alpha -methylprednisolone derivatives of the general formula I   <IMAGE> (in which R1 represents C2-C6-I-oxoalkyl or benzoyl and R2 represents H, C2-C6- I-oxoalkyl or benzoyl) and a process for their manufacture.   The novel compounds are useful in the treatment of skin disorders and of allergic disorders of the respiratory and intestinal tracts.
Patent DK-165648-B (DK)
Inventor: OVER HELMUT
IPC: E06B1/60
Filed: 1987-12-15
Abstract: The invention relates to a beam for window frames or the like in which a spar for connecting to the beam has on its side facing the beam at least one slot extending in the direction of the longitudinal extension of the spar. According to the invention, such a beam is to be so constructed that a load acting on the window frame can be received more securely, and it should be possible for the beam to be produced more cheaply and to permit reliable sealing against moisture and better thermal insulation. This is achieved according to the invention if the beam (1) consists of two identical flat profiles (9) which are, however, arranged to form a mutual mirror image, having two hollow chambers (7, 8) which run parallel to one another at a distance and in the longitudinal direction and are each open to the outside by means of a longitudinal slot (6, 6'), the flat profile (9) having associated with each slot (14, 15) of a spar (13) at least one spacing crosspiece (10, 11) which can engage in the said slot (14, 15). 
<IMAGE>
Patent FI-74428-B (FI)
Inventor: FINDLAY HUGH THOMAS
IPC: B41M5/26
Filed: 1981-11-25
Granted: 1987-10-30
Abstract: A ribbon for thermal printing comprising a transfer coating and a substrate which is a polyurethane resin containing electrically conductive carbon black.
Patent FI-69210-B (FI)
Inventor: VESA PEKKA M
IPC: G01F1/20
Filed: 1984-07-16
Granted: 1985-08-30
Abstract: The invention relates to a mass flow rate meter, whose collision plate (1) is supported by means of spring plates (5) on a body (6, 7). The collision plate (1) is able to move in direction (B) perpendicular to the direction of the spring plates (5). The stiffness of spring plates (5) can be utilized to obtain a sufficiently high resonance frequency for collision plate (1) so that the periodic nature of mass supply would not lead to resonance oscillation of said collision plate.
Patent FI-86063-B (FI)
Inventor: BINDER DIETER
IPC: C07D333/32
Filed: 1987-01-07
Granted: 1992-03-31
Abstract: The invention relates to new nitrogen-arylmethoxy-thiophene derivatives of the formula I    <IMAGE>  I  wherein the R-CH2-O-group is in position 4 or 5 of the thiophene ring, R denotes a 2-pyridinyl- or 2-quinolinyl group and R1 denotes a -COO-lower alkyl-, -CO-(CH2)n-CH3 or -CH(OH)-(CH2)n-CH3 group, wherein n represents an integer from 2 to 6, and their hydrates and/or their pharmaceutically acceptable acid addition salts, a process for their preparation and pharmaceutical products containing these compounds. The new compounds and their salts have useful pharmacological properties. They can be used as active compounds for medicaments for the treatment and prevention of diseases, caused by a disturbance in arachidonic acid metabolism.
Patent FI-87672-B (FI)
Title: Paper production method
Inventor: ANDERSSON KJELL RUNE
IPC: D21H17/67
Filed: 1987-09-30
Granted: 1992-10-30
Abstract: In a process for making paper from an aqueous paper pulp, especially a pulp containing bleached/unbleached mechanical pulps or unbleached chemical pulps, a combination of chemicals is added for improving drainage and retention. As drainage-and retention-improving aids are added a cationic polyacrylamide and a sol of colloidal inorganic particles having at least one surface layer of aluminium silicate or aluminum-modified silicic acid.
Patent FI-99138-B (FI)
Inventor: D HERBECOURT BRUNO
IPC: B05D7/14
Filed: 1991-08-02
Granted: 1997-06-30
Abstract: Multicolour coating, especially for metal substrates. It consists of a surface coat comprising a dispersion in a colourless varnish of bulk-coloured thermoplastic resin powders and optionally of an undercoat of a tint which is uniform to the eye, with at least one of the tints of the powders of a colour other than that of the undercoat.
Patent FI-95621-B (FI)
Inventor: LAUNIEMI MARKKU
IPC: E21B19/14
Filed: 1993-04-08
Granted: 1995-11-15
Abstract: A rod cartridge for a rock drilling equipment, rotatable about a shaft (10) and comprising a rotor having guide plates (15a to 15c), and end covers (11, 13). One end cover (13) of the rod cartridge (1) is displaceable longitudinally of the shaft (10). The guide plate (15c) close to the displaceable end cover (13) is similarly displaceable longitudinally of the shaft (10) so that the rod cartridge (1) can be adjusted for rods of different lengths.
Patent FI-108710-B (FI)
Inventor: WALD THOMAS STEPHEN
IPC: B41M5/337
Filed: 1994-09-28
Granted: 2002-03-15
Abstract: A binder formulation for improving the water resistance, especially the warm water resistance, of thermally-sensitive record material comprises a major proportion of an amide ammonium salt of a substantially non-esterified styrene/maleic anhydride copolymer and a minor proportion of polyvinyl alcohol.
Patent FI-112969-B (FI)
Title: Steel column and beam flange connection for structural building frame
Inventor: JUOLA TUOMO
IPC: E04B/
Filed: 1995-01-04
Granted: 2004-02-13
Abstract: Steel beams (5,5') for supporting a suspended floor slab are fitted with end flanges (9), holed for bolting and with apertures (7) for continuity bar reinforcement in the concrete slab. The hollow box-section columns (1,1') have similar welded end flanges. A hollow square connector (16), similarly apertured with corresponding bolt holes (11) and passageway openings for reinforcement bars, is located at the junction of beams and columns. The assembly is bolted together to make the connection.
Patent FI-113486-B (FI)
Inventor: PERVAN TONY
IPC: E04D3/362
Filed: 1995-03-15
Granted: 2004-04-30
Abstract: The invention relates to a system for laying and mechanically joining building panels, especially thin, hard, floating floors. Adjacent joint edges (3, 4) of two panels (1, 2) engage each other to provide a first mechanical connection locking the joint edges (3,4 ) in a first direction (D1) perpendicular to the principal plane of the panels. In each joint, there is further provided a strip (6) which is integrated with one joint edge (3) and which projects behind the other joint edge (4). The strip (6) has an upwardly protruding locking element (8) engaging in a locking groove (14) in the rear side (16) of the other joint edge (4) to form a second mechanical connection locking the panels (1, 2) in a second direction (D2) parallel to the principal plane of the panels and at right angles to the joint. Both the first and the second mechanical connection allow mutual displacement of joined panels (1, 2) in the direction of the joint.
Patent HU-194558-B (HU)
Title: Process for producing /3s/-3-square bracket opened-figure bracket opened-/2-amino-4-thiazolyl/-/1-carboxy-1-methyl-etoxy-imino/-acetyl-figure bracket closed-amino-square bracket closed-4-alkyl-2-oxo-1-azetidinyl-sulfonic acid
Inventor: MONIOT JEROME L
IPC: C07D417/12
Filed: 1983-06-20
Abstract: A process for preparing (3S)-3-[[(2-amino-4-thiazoyl)](1-carboxy-1-methyloxy)imino]acetyl]amino]-2-oxo-1 -azetidinesulfonic acid and 4-substituted derivatives thereof.
Patent HU-196674-B (HU)
Inventor: VITTAY PAL
IPC: H01F27/34
Filed: 1986-04-18
Abstract: Szigetelési elrendezés villamos vezetők közt szigetelő rétegeket tartalmazó villamos tekercsekhez, amely különösen nagyfeszültségű transzformátoroknál és kondenzátoroknál alkalmazható, biztosítva az egyes menetsorok (3) közötti kúszóút hosszat anélkül, hogy a tekercs (4) hossza megnövekedne. A vezetőhuzalból csévélt menetsorok (3) közé azoknál szélesebb villamosán szigetelő tulajdonságú, pl. papír réteg van csévélve. Ezt a réteget olyan szalag alkotja, amely teljes hosszában egymást részben vagy teljesen fedő, vissza-, alá- vagy föléhajlitott, egymást követő szakaszokból áll. Az így létrejött redősített szalag (1) egyik vagy mindkét oldalára egy vagy több nála keskenyebb szigetelő tulajdonságú kísérő szalag (2) van erősítve. A szigetelő tulajdonságú redősített szalagoknak (1) a menetsorokból (3) álló tekercs (4) két oldalán túlérő, kilógó szakaszai a tekercs (4) oldalai mentén föl és annak külső oldalára vissza vannak hajtva és ott rögzítettek.
Patent HU-213070-B (HU)
Title: Method of producing of three-dimensional articles, and a disposable absorbent article
Inventor: HANSSON ROY
IPC: A61F13/15
Filed: 1990-12-14
Abstract: PCT No. PCT/SE90/00838 Sec. 371 Date Jun. 19, 1992 Sec. 102(e) Date Jun. 19, 1992 PCT Filed Dec. 14, 1990 PCT Pub. No. WO91/09580 PCT Pub. Date Jul. 11, 1991.The present invention relates to a method for the flat manufacture of three-dimensional articles, in particular absorbent disposable articles. According to the invention, a plurality of narrow, flexible absorbent bodies (1a-1g) are placed sequentially on a thin material web of liquid-impermeable material (2; 2') or liquid-permeable material, said pads having mutually diverging side surfaces on both sides of a central pan of said pads intended to form the crotch parts of a manufactured article; placing a thin, second material web of liquid-permeable material (4) or liquid-impermeable material over said bodies and fastening second material web to the first material web (2; 2') so as to enclose each pad between the two material webs; and by rendering those parts of the mutually joined material webs located between the different pads contractable prior to or in conjunction with placing the liquid-permeable material web in position; and by then causing the contractable parts of the material webs to contract and therewith move the side surfaces of the pads towards one another. The invention also relates to an absorbent disposable article manufactured in accordance with the method.
Patent HU-186220-B (HU)
Inventor: SZIRMAI ENDRE
IPC: B01D39/14
Filed: 1980-07-31
Abstract: A találmány szerinti eljárás lényege — a műanyag szűrőbetétek előállítására — az, hogy hőre lágyuló műanyag porokból, vagy műszálvagdalékból szitálással porfrakciókat nyerünk ki, melyeket vibrációs tömörítés után szerszámban, vagy pedig folyamatosan adagolva szalag-szintterelőgépen színterelünk. Kedvező tulajdonságú szűrőanyagot állíthatunk elő különböző méretű porfrakciók keverékéből is, ha a méreteltérés max. 1:2 arányú. Ugyancsak jó eredményt érhetünk el különböző méretű porok réteges színterelésével, amikor is, egy-egy rétegben azonos méretűek a por szemcsék. Lehetséges eltérő lágyuláspontú, de azonos méretű porok együtt színterelése is, ilyenkor az alacsonyabban olvadó pornak megfelelő hőfokon színtereltünk. A találmány szerinti regenerálási eljárás lényege az, hogy lassú szűréssel homogén szűrési lepényt hozzunk létre a színtereit szűrő felületén, és azt rezgéssel, vagy nyomástároló keltette lökésszerű visszamosással, vagy pedig felületre fúvott folyadéksugárral távolítjuk el. Az eljárás előnyös kiviteli módja az, hogy két vagy több sorbakötött szűrőbetétből álló berendezésben fokozatonként elkülönítve, de egyidőben regenerálunk a felületre fúvott folyadéksugárral.  -1-
Patent HU-193937-B (HU)
Title: Process for preparing hexahydro-pyrrolo/2,1-a/isoquinoline derivatives and pharmaceutics comprising these compounds as active substance
Inventor: MARYANOFF E B
IPC: C07D207/40
Filed: 1984-06-22
Abstract: Novel compounds are disclosed, which are derivatives of 1, 2, 3, 5, 6, 10b-hexahydropyrrolo [2, 1-a]- isoquinolines, represented by general formula (I): <CHEM> as well as pharmaceutical compositions and methods for the treatment of depression in warm-blooded animals, e.g., man. Novel intermediates are also part of the invention.
Patent HU-188480-B (HU)
Title: Device for single cooling encircled space ranges
Inventor: HOFFMANN TIBOR
IPC: F25D31/00
Filed: 1983-08-05
Abstract: An improved disposable self-cooling device for chilling confined volumes, especially canned beverages, containing a liquid or liquified refrigerant under pressure, and an evaporator unit as a heat exchanger system, both of them surrounded by the confined volume, preferably beverage to be chilled. Upon initiation the cooling process, the beverage cools down to the required, wanted temperature and it is ready for consumption within a short period of time. Low cost of manufacture, utilization of previously involved techniques and health care instructions are favourably supported by the invention.
Patent HU-192452-B (HU)
Title: Process for producing heteropolisaccharides
Inventor: LINTON JOHN D
IPC: C12P19/04
Filed: 1984-09-21
Abstract: Process for preparing a heteropolysaccharide from strain NCIB 11883 and use of the latter e.g. as viscosity modifier in an aqueous system such as completion fluids, work over fluids, stimulation fluids, and preferably in drilling fluids and use in connection with well-treatments, and enhanced oil recovery.
Patent HU-200332-B (HU)
Title: Herbicide compositions containing substituted triazolinon derivatives as active component and process for producing substituted triazolinon derivatives
Inventor: LINDIG MARKUS
IPC: A01N43/653
Filed: 1988-07-08
Abstract: The invention relates to novel substituted triazolinones of the formula (I) …<IMAGE>… in which… R<1> represents hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, alkoxyalkyl, alkoxy, cycloalkylalkyl, cycloalkyl, or in each case optionally substituted aralkyl or aryl,… R<2> represents alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, alkoxyalkyl, alkoxy, cycloalkylalkyl, cycloalkyl or in each case optionally substituted aralkyl or aryl,… R<3> and R<4> independently of one another in each case represent hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, haloalkynyl, cyanoalkyl, hydroxyalkyl, alkoxyalkyl, alkylaminoalkyl, alkoxyiminoalkyl, alkoxycarbonylalkyl, alkoxycarbonylalkenyl, alkylaminoalkyl, dialkylaminoalkyl, in each case optionally substituted cycloalkyl, cycloalkylalkyl, cycloalkenyl or cycloalkenylalkyl, optionally substituted heterocyclylalkyl, in each case optionally substituted aralkyl, aroyl or aryl, or represent alkoxy, alkenyloxy, alkynyloxy, aralkyloxy or aryloxy, or together with the nitrogen atom to which they are bonded represent an optionally substituted heterocycle,… X represents oxygen or sulphur and… Y represents oxygen or sulphur where… X represents sulphur only in the case when at least one of the radicals R<3> or R<4> does not simultaneously represent hydrogen, methyl or ethyl,… their preparation, and their use as herbicides.