baber/WOPTO huggingface dataset:
Patent CN-1154798-A (CN)
Inventor: NI DASHI
IPC: A23F3/30
Filed: 1996-01-18
Abstract: 本发明涉及一种速溶茶的制造工艺，该工艺是这样实现的，将茶叶放入冷蒸馏水中浸泡，经过粗滤和精滤，分离其上清液后，再用RO膜技术浓缩后，再进行真空冷冻干燥，即得一种新型速溶茶。该速溶茶的制造工艺最主要特点是仍然保持原茶叶所固有的色、香、味和其主要成分所具有的保健药理活性。该制造工艺尤其适合用于中、低档茶叶的加工，可明显提高茶叶的品味，增加其附加值，从而为中、低档茶叶的滞销积压提供解决出路。
Patent CN-1179360-A (CN)
Inventor: ZHAO HONG
IPC: C07C15/04
Filed: 1996-10-12
Abstract: 本发明涉及石油化工中固相反应调变混合轻烃芳构化催化剂,该催化剂制备方法为采用离子交换法制备ZnHZSN－5分子筛,然后将ZnHZSN－5与氧锌、γ－氧化铝三种物料充分固相混合、造粒、焙烧制得担体,再将担体经过金属阳离子铂、银、镓、铜、铁、镍任意三种浸渍,制得催化剂。该催化剂活性组分稳定,反应性能平稳,使用寿命长,浸渍贵金属含量低。
Patent CN-1167977-A (CN)
Inventor: NAKA HIROYUKI
IPC: G11B5/09
Filed: 1997-01-09
Abstract: 一种用于转动被旋转物体的旋转驱动装置是通过安装在驱动部件之上的用于装载被旋转物体的转盘的转动过程来制造的，并且通过转盘的转动产生表面振动，以及一种根据表面振动量在转盘上形成表面振动减振器的方法。
Patent CN-1163272-A (CN)
Title: 预糊化修饰淀粉及其制备方法
Inventor: WU YUKAI
IPC: C08B30/14
Filed: 1997-04-11
Abstract: 本发明提供一种预糊化修饰淀粉及其制备方法，由修饰剂、淀粉和水配成料液，料液pH值为7.0～11.0，并保温，将料液输送至滚筒干燥机进行预糊化并干燥，经粉碎得到一定细度的预糊化修饰淀粉产品。该产品具有很好的粘弹性，产品5％水溶液布拉班德粘度值为500～650BU，旋转粘度计测定值为1500～4000cP，拉丝长度为100～150cm。产品可广泛应用于饲料、建筑材料、石油钻井及化工等领域。
Patent CN-1218779-A (CN)
Inventor: YAO YAO
IPC: C04B35/453
Filed: 1997-12-05
Abstract: 一种高频用Nb 2 O 5 －ZnO－Bi 2 O 3 三元系介质陶瓷材料及制备工艺,本发明提供的新组成区域(mol%)为:NbO 5/2 35.0－41.0%,ZnO20.0－25.0mol%,BiO 3/2 38.0－44.0。在制备过程中,作为烧结助剂用低熔点化合物(单独或复合添加)的加入量(wt%)为:LiF0.01－3.0,CuO0.01—1.0,V 2 O 5 0.01—1.0,H 3 BO 3 0.01—1.0,Pb 3 O 4 0.01—3.0。作为调节电性能,取代Zn的二价元素为Ba、Sr、Ca,其单独或复合取代加入量(mol%)为:Ba0.5—6.0,Sr0.5—6.0,Ca1.0—24.0。本发明提供有关介质陶瓷的烧结温度≤900℃,烧结温度范围较宽,约为60—80℃,并具有较佳的介电性能。
Patent CN-1197812-A (CN)
Inventor: WANG BIN
IPC: C08J7/12
Filed: 1997-04-29
Abstract: 一种高分子合成材料表面氟化改性方法,其将氟化剂放入预先放置了高分子材料制品的反应器内,抽真空后加热,至反应器内、外温度一致开始计时,反应时间到,取出高分子材料制品即可。采用本发明的方法可在高分子材料表面生成一层较厚的含氟膜,可较大地降低高分子材料的摩擦系数,提高其耐摩擦损耗能力及耐介质性能。采用本方法设备简单,反应温和,易于控制。
Patent CN-1207035-A (CN)
Inventor: SUN Y
IPC: A61K47/22
Filed: 1997-09-11
Abstract: 完全无水的局部制剂,包含(Ⅰ)丙烯碳酸酯,(Ⅱ)一种或多种短碳链醇和/或二元醇,它包括乙醇,异丙醇,丙二醇,丁二醇,聚乙二醇,己二醇,甲氧基聚乙二醇,和(Ⅲ)丙三醇和一种或多种治疗或化妆活性组分的二者之一或两者都有。
Patent CN-1230567-A (CN)
Inventor: TANAKA YASUO
IPC: C08L23/10
Filed: 1999-02-10
Abstract: 一种能够制成未拉伸薄膜的聚丙烯树脂组合物,所述薄膜在该薄膜在透明性,耐冲击性,低温热密封性和热密封强度方面具有优势,该组合物包含(A)聚丙烯树脂,(B)特殊的乙烯/α－烯烃无规共聚物和(C)特殊的丙烯/乙烯/1－丁烯无规共聚物。
Patent CN-1306560-A (CN)
Title: 含固体催化剂的cmp淤浆
Inventor: SHUMIN WANG
IPC: B24B37/11
Filed: 1999-05-25
Abstract: 一种化学机械抛光组合物,其含有氧化剂和至少一种固体,该组合物可与研磨剂或一种研磨垫结合用于除去底物的多重金属层。
Patent CR-20110582-A (CR)
Title: Sistema de método para controlar la temperatura en un antecrisol
Inventor: PERRY PHILIP D
IPC: C03B7/06
Filed: 2011-11-08
Abstract: Se proporcionan los sistemas y métodos para controlar la temperatura en un antecrisol de vidrio. En una implementación, un sistema incluye al menos un quemador colocado en el antecrisol, una tubería acoplada al quemador, un suministro de combustión acoplado al quemador, un soplador de aire de combustión para distribuir aire ambiental bajo presión hacia la tubería y un controlador acoplado acoplado al quemador para controlar la operación del quemador.
Patent CR-20120317-A (CR)
Title: Derivados de 2-arimidazol heteroaromáticos como inhibidores de enzima pde10a
Inventor: PUESCHL ASK
IPC: A61K31/519
Filed: 2012-06-12
Abstract: La presente invención se dirige a compuestos, que son inhibidores de la enzima PDE10A. La invención proporciona una composición farmacéutica que comprende una cantidad terapéuticamente efectiva de un compuesto de la invención y un portador farmacéuticamente aceptable. La presente invención también proporciona procesos para la preparación de los compuestos de la fórmula I.
Patent CR-20150548-A (CR)
Title: Dispensador
Inventor: DUIGNAN CATHAL
IPC: A61M15/00
Filed: 2015-10-13
Abstract: La presente invención se refiere a dispensadores, en particular, a dispensadores para dispensar una dosis de una sustancia gaseosa, un gas cargado o gotitas a partir de una fuente de sustancia y dispensadores comprendiendo contadores de dosificación.
Patent CR-20160197-A (CR)
Title: Dispositivo de engarzado de activación múltiple métodos de uso y fabricación del mismo
Inventor: SMITH KEVIN W
Filed: 2014-11-18
Abstract: Un dispositivo de engarzado de activación múltiple comprende engarces, un eje, un montaje de movimiento de engarzado y un enlace. Cada engarce tiene un hueco interior. El eje tiene una ubicación distal de engarzado, una superficie exterior y un interior con los clips/engarces apilados en él, los engarces se mueven a lo largo del eje longitudinal. El eje define una abertura lateral proximal a la ubicación de engarzado y comunica el interior con el medio ambiente fuera de la superficie exterior. El montaje de movimiento de engarzado dentro del eje suministra el primer engarce en la ubicación distal de engarzado al mover el primer engarce longitudinalmente desde una primera posición proximal dentro de la ubicación distal de engarzado y regresando a una segunda posición proximal sin el primer engarce. El enlace hala al menos una cuerda desde lo distal del primer engarce a través del primer engarce a través de una parte del eje y sale por el lado del eje a través de la abertura lateral.
Patent CR-20230391-A (CR)
Title: Heart valve sealing devices and delivery devices therefor
Inventor: Chen jensen
IPC: A61F2/24
Filed: 2018-04-18
Abstract: An implantable prosthetic device includes a coaption portion, paddles, and clasps. The paddles are moveable from a closed position to an open position. The clasps are also moveable from an open position to a closed position. The implantable prosthetic device can be used to repair a naitive valve, such as a native mitral valve.
Patent EC-SP003745-A (EC)
Title: Metodo y aparato para procesar suministros de hidrocarburos pesados
Inventor: BRONICKS YORAM
IPC: C10G55/00
Filed: 2000-10-31
Abstract: Un aparato para procesar un suministro de hidrocarburo pesado, de acuerdo con la presente invención, incluye en primer lugar un calentador para calentar el suministro de hidrocarburo pesado. El suministro de hidrocarburo pesado calentado producido se suministra a una torre de fraccionamiento atmosférico para fraccionar el suministro de hidrocarburo pesado calentado hacia la entrada de la torre de fraccionamiento atmosférico que produce fracciones atmosféricas livianas y residuos atmosféricos. Además, el aparato incluye una torre de fraccionamiento por vacío para fraccionar residuos atmosféricos calentados por otro calentador y producir fracciones por vacío más livianas y residuos por vacío. Así mismo el aparato incluye una unidad de desasfaltado por solvente (SDA) para producir aceite desasfaltado (DAO) y asfaltenos a partir del residuo por vacío así como también una unidad de cracking térmica para producir el cracking térmico del crudo desasfaltado y producir un producto de cracking térmico que se recicla hacia la entrada de la torre de fraccionamiento atmosférico. Incluso, el aparato incluye otra unidad de cracking térmica para producir el cracking térmico de fracciones por vacío más livianas para producir otro producto de cracking térmico que se recicla a la torre de fraccionamiento atmosférico.
Patent EC-SP034877-A (EC)
Title: Moduladores de los receptores activados por proliferadores de peroxisomas
Inventor: FERRITTO CRESPO RAFAEL
IPC: A61K31/4164
Filed: 2003-12-04
Abstract: Se ha descrito un compuesto representado por la Fórmula Estructural (I) Ar es un grupo aromático sustituido o no sustituido. Q es un enlace convalente, -CH2-o -CH2CH2-; W es un grupo conector alquileno sustituido o un grupo concector heteroalquileno sustituido o no sustituido de dos a diez átomos de logitud, preferiblemente de dos a siete átomos de longitud , El anillo de Fenilo a Esta opcionalmente sustituido con hasta cuatro sustituyentes además de R1 es -(CH2)n-CH(OR2)-(CH2)mE, -(CH)=C(OR2)-(CH2)mE, -(CH2)n-CH(Y)-(CH2)mE o -(CH)=C(Y)-(CH2)mE; donde E es COOR3, alquil(C1-C3)nitrilo, carboxamida, sulfonamida, acilsulfonamida o tetrazol y donde sulfonamida, acilsusulfonamida y tetrazol están opcionalmente sustituidos con uno o más sustituyentes seleccionados independientemente entre: alquilo C1-C6, haloalquilo y arilalquilo CO-C4; R2 es -H, un grupo alifático, un grupo alifático sustituido, haloalquilo, un grupo aromático, un grupo aromático sustituido, -COR4, COOR4, CONR5R6, -C(S)R4, -C(S)OR4 o -C(S) NR5R6. R3 es -H, un grupo alifático, un grupo alifático sustituido, un grupo aromático o un grupo aromático sustituido. Y Es -O-, -CH2-; -CH2CH2-o -CH=CH y está unido a un átomo de carbono en el Anillo de Fenilo A que está aen otro respecto a R1. R4-R6 son independientemente -H, un grupo alifático, un grupo alifático sustituido, un grupo aromático o un grupo aromático sustituido. n y m son independiente 0, 1 o 2.
Patent EC-SP077310-A (EC)
Title: Anticuerpos anti-5t4 humanizados y conjugados de anticuerpos anti-5t4/caliqueamicina
Inventor: BOGHAERT ERWIN RAYMOND ARSENE
IPC: A61K47/48
Filed: 2007-03-09
Abstract: Se describen anticuerpos anti-5T4 quiméricos y humanizados y conjugados de anticuerpo/fármaco y métodos APRA preparar y usar los mismos.
Patent EC-SP088648-A (EC)
Title: Nuevos bencimidazoles 2-sustituidos como moduladores de receptor de androgeno selectivos (sarms)
Inventor: VERNON JR ALFORD C
IPC: C07D403/04
Filed: 2008-07-24
Abstract: La presente invención está dirigida a derivados de bencimidazol 2-sustituidos novedosos, composiciones farmacéuticas que los contienen y su uso en el tratamiento de trastornos y condiciones moduladas por el receptor de andrógeno.
Patent FI-20011100-A (FI)
Inventor: ALBRIGHT JAY D
IPC: C07D223/20
Filed: 2001-05-25
Abstract: Tricyclic compounds of the general Formula I: <CHEM> as defined herein which exhibit antagonist activity at V1 and/or V2 receptors and exhibit in vivo vasopressin antagonist activity, methods for using such compounds in treating diseases characterized by excess renal reabsorption of water, and processes for preparing such compounds.
Patent FI-20035067-A (FI)
Inventor: FLINCKMAN MARKUS
IPC: B63B29/02
Filed: 2003-05-15
Abstract: The invention relates to a balcony or the like for various structures, such as vessels, buildings, and the like. The balcony comprises a prefabricated balcony unit (10), having its end face towards a structure (1) provided with a fastening profile (5), and the structure (1) is at desired locations fitted with clamping profiles (3, 4) complementary to said fastening profile (5) for fastening the prefabricated unit (10) to the structure (1). <IMAGE>
Patent GB-1004457-A (GB)
IPC: B63B35/04
Abstract: 1,004,457. Winch drives. SUBMARINE CABLES Ltd. Aug. 16, 1962 [May 17, 1961], No. 17993/61. Heading B8B. [Also in Division F2] In apparatus for hauling and paying out wires, ropes, cables &c. as in submarine cable laying the hydraulic drive for the capstan C is arranged for smooth transition from driving to braking during payout. The drive comprises a variable output pump P coupled to a motor M, the outlet side O (during payout) of the motor M being coupled to a variable pressure relief valve MR which is set to high pressure to permit the motor M to operate as a brake when the pull of the cable increases under its own weight. After transition to braking, the supply from the pump is cut off and oil is supplied to the motor M from the reservoir T through a non-return valve V1  and passes through the relief valve MR to the reservoir T. Relief valve B and non-return valve V2 permit continued circulation of oil through the pump P and reservoir T when the motor M is not being driven. A non-return valve V3 is provided between the pump and motor for reversing the drive when the cable is hauled in. Under this condition the relief valve MR is set to a high pressure to limit the pull on the cable. A manually adjustable leakage valve HR is provided for hydraulic control of the variable pressure relief valve MR. A circulating pump CP and relief valve CR is also provided.
Patent GB-1225194-A (GB)
IPC: A61B18/08
Filed: 1968-07-15
Abstract: 1,225,194. Biological tissue coagulation device. SVERDLOVSKY NAUCHNO-ISSLEDOVATELSKY INSTITUT TUBERKULEZA. 15 July, 1968, No. 33626/68. Heading A5R. [Also in Division H5] An electrosurgical instrument for use in the coagulation of biological tissue comprises an electric heating element 1 enclosed in a metal casing 2 to which is affixed an elongate holder 4 with a handle (5). The casing 2, which may be a parallelepiped or cylinder with rounded edges, has a hermetically closed cap 3, and an external projection 6 for use on small areas of tissue. The casing has a partition 8 defining a compartment containing a temperature transmitter 9 in thermal contact with the casing. The temperature transmitter 9 is connected to a temperature measuring unit (12), Fig. 3 (not shown), having an indicator (13). The temperature of the casing may be maintained at the required value, 100‹ to 110‹C for parenchymatous tissue and 110‹ to 140‹C for muscular tissue, manually by a switch (14) or automatically.
Patent GB-1225319-A (GB)
IPC: A01D34/63
Filed: 1968-06-24
Abstract: 1,225,319. Mowing machines; tractor hitches. C. VAN DER LELY N.V. 24 June, 1968 [30 June, 1967], No. 30102/68. Headings AlF and AlP. A mowing machine adapted to be towed by a tractor or the like comprises a frame provided with a number of mowing elements rotatable about vertical axes and bearing on the ground through the intermediary of supporting rings, the diameter of each ring being equal to at least half the diameter of the circle traced by the tips of the knives of the corresponding mowing element. Fig. 1 shows four mowing elements supported by hollow beams 1, 2, and connecting frame 3, a gear box 5 being provided at each end of the beams 1, 2 for the rotary support of the mowing elements, and ground wheels 38 conected by links to the frame 3 for the support of the machine. A bearing-mounted tube 6 depends from each gear box 5 and connected to the lower end of each tube 6 are two cones 8, 9 the outer ends of which pivotally support a number of cutting knives 13. A shaft 18 is disposed within and is journalled to each tube 6, each shaft 18 rotatably supporting, via ball bearings 19 and supports 20, a ring 21, the level of which (and thus the level of the knives 13) may be adjusted by spacing rings 23. Each shaft 18 extends into its corresponding gear box 5 with a bevel pinion 26, the teeth of which key with bevel pinions 25 at each end of shafts 24 which extend through the hollow beams 1, 2 respectively. The mowing elements are driven from the power takeoff shaft of the tractor via a telescopic transmission shaft (not shown) leading to the splined end of a shaft 36 which extends through one gear box 5 and to a pulley 35 in a transmission box, the pulley 35 being connected by V-belts or the like to pulleys 33, 30 and 28. A shaft 31 is connected to pulleys 33, 30 and extends through another gear box 5 and is keyed to the corresponding shaft 18, while a shaft 4 is connected to pulley 28 and extends through a further gear box 5 and is keyed to the corresponding shaft 18. The mowing elements are then driven in the directions indicated by the arrows B. A connector 42 connects the machine via a parallelogram linkage 39, 40, 41, 43 to the three-point lifting device of the tractor and may be held in two positions, as shown in full and dotted lines. The outer mowing element (the uppermost as seen in Fig. 1) is pivotable about shaft 4. The knives 13 are mounted, Fig. 4 (not shown), so that should they meet an obstacle, they can turn about pivot 12 to a position in which they are retracted between the feet 10, 11 of the cones 8, 9.
Patent GB-1226181-A (GB)
IPC: C08K3/22
Filed: 1968-08-16
Abstract: 1,226,181. Polypropylene compositions. BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Aug., 1968 [18 Aug., 1967], No. 39235/68. Heading C3P. A polypropylene moulding composition comprises per 100 parts of polypropylene (having an intrinsic viscosity in toluene at 100‹ C. of 3-20 dl./g. and a fraction of 20 to 35% by weight which is soluble in boiling n-heptane) 5 to 90 parts of one or more finely-divided metal oxides and/or metals. The composition may also contain 0À1-20% of a metal fluoride. Metals and oxides exemplified are copper, beryllium, cadmium, aluminium, lanthanum, indium, zirconium, hafnium, vanadium, bismuth, tungsten, manganese, iron, cobalt, iron oxide, uranium oxide, antimony oxide, lead oxide, titanium oxide, zinc oxide, magnesium oxide and copper oxide. Exemplified fluorides are those of zinc, cadmium, aluminium, magnesium and cobalt.
Patent GB-1226724-A (GB)
Inventor: DELBOUILLE A
IPC: C08F4/64
Filed: 1969-05-19
Abstract: 1,226,724. Olefine catalysts. SOLVAY & CIE. 19 May, 1969 [20 June, 1968], No. 25323/69. Heading B1E. A calcium or magnesium oxide support for an olefine conversion catalyst is produced by heating a carbonate of the metals at 350 to 1000C.
Patent GB-1227796-A (GB)
IPC: C12P33/00
Filed: 1968-05-13
Abstract: 1,227,796. The microbiological production of 6#,19 - oxido - androst - 4 - ene - 3,17 - dione. RICHTER GEDEON VEGYESZETI GYAR R.T. 13 May, 1968 [17 May, 1967], No. 22670/68. Heading C2U. The title process is effected by the action of Mycobacterium phlei, lacticola or smegmatis on a 6#,19 - oxido - #<SP>4</SP> - 3 - oxo - steroid carrying a 17# - aliphatic hydrocarbon side-chain which may possess a 20-oxo group. Specified starting compounds are 6#,19-oxido-cholest-4-en-3-one and 6#,19-oxido-pregn-4-ene-3,20-dione.
Patent GB-1228302-A (GB)
IPC: B03B4/02
Filed: 1969-02-25
Abstract: 1,228,302. Pneumatic separating. R. A. KIPP. 25 Feb., 1969, No. 10051/69. Heading B2H. The screen 37 of a pneumatic reciprocable screen assembly for separating a mixture of light and heavy particles forming a fluidised bed includes a throat portion 45 hinged on a transverse axis 46 at the upper end of the screen, means biasing the throat portion about its axis to its raised position, and remotely actuated means 70-75 for lowering the throat portion against the action of the biasing means in order to control the flow of heavy particles off the upper end of the screen. A flexible web 35 extending between supports 39, 32 and enclosing the upper surface of the screen may form the biasing means. The screen is mounted in a frame 26, where it is secured either by sprung catches (47) (Fig. 4, not shown) operated remotely by cables (61) and pulleys, or by wedges (86) (Fig. 12, not shown) driven between the screen and cross bars (81) of the frame. The frame is resiliently mounted by leaf springs (28') (Fig. 2, not shown), and is reciprocated by means of an eccentric weight (24) rotated via chains and sprockets by an electric motor (19).
Patent GB-1238632-A (GB)
IPC: C07C17/383
Filed: 1969-01-06
Abstract: 1,238,632. Carbon tetrachloride. FARBWERKE HOECHST A.G. 6 Jan., 1969 [12 Jan., 1968], No. 729/69. Heading C2C. Carbon tetrachloride is manufactured continuously by chlorination of aromatic hydrocarbons with chlorine at an elevated temperature under atmospheric or superatmospheric pressure and subsequent distillation of the reaction products to separate carbon tetrachloride, wherein, during the distillation stage the hexachlorobenzene, which has formed in the course of the reaction or introduced as a starting material, is maintained in solution in carbon tetrachloride at a temperature of above 76À7 C. under a pressure corresponding at least to the vapour pressure of the carbon tetrachloride and removing it discontinuously in the form of this solution from the reaction system or returning it continuously to the chlorinolysis reaction stage.
Patent GB-1250354-A (GB)
IPC: E04D13/04
Filed: 1968-11-19
Abstract: 1,250,354. Roof elements and roofs therefrom. J. G. SCHMIDT. 19 Nov., 1968 [8 Dec., 1967], No. 54857/68. Heading E1W. A roof element or a roof slopes downwardly and inwardly towards the central portion of the roof or element, Fig. 1 and 2 show a bungalow having a roof comprising four panels 10, 11, 12, 13 sloping inwardly and downwardly to a drainage box 14 from which a pipe 15b leads off. A grid may be placed over the drainage box to prevent leaves &c entering the box. The pipe 151b may be in several parts.
Patent GB-1250798-A (GB)
IPC: C09C3/00
Filed: 1968-12-30
Abstract: 1,250,798. Tetrafluoroethylene polymer compositions. FARBWERKE HOECHST A.G. 30 Dec., 1968 [29 Dec., 1967], No. 61559/68. Heading C3P. A mixture comprising a tetrafluoroethylene polymer, containing up to 3% by weight of a comonomer, and a filler, in the form of powder particles having an average grain size of 0.2 to 2 millimetres, the particles being a homogenous agglomerate made by coagulating a filler having an average particle size of up to 300 microns or an average fibre length of up to 1500 microns with the polymer having an average particle size of 0.1 to 0.7 microns, the filler particles being coated with an oligomeric or polymeric organic compound of an element other than carbon of group Na or group IVb of the Mendeleef Periodic Table. In the examples, aqueous dispersions of polytetrafluoroethylene and tetrafluoroethylene hexafluoropropylene copolymer are coagulated with glass fibres, graphite, bronze powder, molybdenum disulphide, aluminium powder and lead powder coated with phenylmethyl - polysiloxane, dimethyl - polysiloxone, polysiloxane derived from y-aminopropyltriethoxysilane and high molecular weight titanic acid esters derived from butyl titanate.
Patent GB-1250820-A (GB)
IPC: C07F9/6509
Filed: 1969-03-27
Abstract: 1,250,820. Thionophosphonic acid esters. FARBENFABRIKEN BAYER AG. 27 March, 1969 [27 March, 1968], No. 16122/69. Heading C2P. The invention comprises compounds of the formula wherein R 1  is a C 1 -C 6  alkyl or haloalkyl radical or a phenyl, halophenyl or C 1 -C 6  alkylphenyl radical and R 2  is a C 1 -C 6  alkyl or haloalkyl radical. They may be obtained by reacting (R 2 0)(R i )P(S)Hal with maleic acid hydrazide in the presence of an acid-binding agent, e.g. an alkali metal alcoholate or carbonate, or a tertiary amine, and preferably in the presence of a solvent or diluent, e.g. a hydrocarbon, ether, ketone, low-boiling aliphatic alcohol, dimethylformamide or a nitrile. The products have insecticidal, acaricidal and rodenticidal properties and may be admixed with an inert solid or liquid carrier or diluent and/or surface active agent to form conventional formulations.