Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

Altalanos Iparfejlesztesi Rt.

Egyesult Izzolampa Es Villamossagi Rt

Chinoin Gyogyszer Es Vegyeszeti

Chinoin Pharmaceutical and Chemical Works Ltd.

Brg Mechatronikai Vallalat

Vizepitooipari Troszt

Polinvent Fejleszto, Kivitelezo Es Ertekesito Kft

Magyar Tudomanyos Akademia Termeszettudomanyi Kutato Laboratorium

Foldmero Es Talajvizsgalo Vallalat

Mta Termeszettudomanyi Kutato Laboratoriumai

Altalanos Szolgaltato Es Epitoipari Kisszovetkezet

Gabor Nagy

Sandor Virag

Zoltan Meszaros

Istvan Hermecz

Tamas Szekely

Agnes Horvath

Jozsef Knoll

Attila Mandi

Agoston David

Gyula Sebestyen

Tibor Breining

Oszkar Libor

Lelle V Vasvari Nee Debreczy

Peter Szentmiklosi

Gabor Bernath

Ferenc Fulop

Sandor Makleit

Istvan Bitter

Rezso Bognar

Gyula Valovics

Zsuzsanna Furst

Gyorgy Neumann

Tamas Szucs

Tamas Szuts

Katalin Marmarosi Nee Kellner

Gabor Horvath

Janos Szepvolgyi

Tibor Horvath

Marta Kovacs

Kalman Simon

Andras Gal

Csaba Kiss

Sandor Bozsoky

Laszlo Kalman

Marianna Pongor Nee Csakvari

Andras Strompl

Maria David Nee Kenez

Bela Lam

Ferenc Csanda

Sandor Marso

Ilona Simonidesz Nee Vermes

Agnes Udvardi

Gyozo Czerny

Istvan Bitteer

Lelle Vasvari Nee Debreczi

Josef Knoll

Miklos Barothy

Margit Menyhart

Zoltan Saghi

Jeno Kiss

Tibor Muller

Kalman Kazareczki

Rudolf Mester

Andras Danko

Polysilicic acid/polyisocyanate basic materials, binding materials and

The present invention relates to a method for producing a closing layer which improves the water and nutrient retention of soils, particularly of sandy soils, characterized in that a layer of clay mineral/polymer gel capable of binding and releasing water in a reversible manner is introduced into the soil, preferably 20-60 cm below the soil surface, in such a way that a clay mineral is reacted either before or after or during activation in the presence of water, with 0.5-30% by weight, calculated for the weight of the clay mineral, of one or more water-soluble polymer capable of reacting with the clay mineral, the water content of the resulting gel is adjusted either before or after or during the reaction to a value at which the resistance of medium of the gel is at least three times higher than that of a polymer-free suspension containing the same amount of the clay mineral, if a non-activated clay mineral has been applied as starting substance, the clay mineral is activated with an alkaline activating agent after reacting it with the polymer, and, if desired, further amounts of a water-soluble polymer, one or more water-insoluble swelling xerogel capable of at least 100% water uptake and forming swollen particles less than 1 mm in diameter and/or one or more chemical for agricultural use, preferably a plant nutrient, a fungicidal substance acting against soil-borne fungi and/or a plant growth increasing substance, is added to the gel either before or after or during the reaction with the polymer, and/or, if desired, the gel and the non-reacted polymer molecules are cross-linked with an aldehyde, and finally the thus-formed gel layer is covered with a soil layer.

Method for producing a barrier layer in soil

A method is disclosed for improving the strength and impermeability of soils or engineering structures, which comprises the steps of:

Method for improving the strength and impermeability of soils and

Clutch arrangement provided with an automatic, double-sided asynchronous switchgear (20) wherein a central disc (21) is connected with a first connection point and each side of the switchgear (20) is connected, through free-wheels (30, 40), with another connection point, the locking directions of the free-wheels (30, 40) being counter to each other. When using the arrangement in a magnetic tape recorder and/or playback unit, the first connection point is connectible to one of the spindles (3), the second connection point to the frame (2) and the third connection point to the driving motor.

Clutch arrangement, mainly for driving the tape-spindle of magnetic tape

A tape-conveying system for forward and backward playing magnetic tape recorder and/or playback unit is disclosed a motor (19) driving the magnetic tape (8) at the required speed, a sound shaft (2) interconnected with the motor (19) and fixed through a bearing to a frame (1), a device transmitting movement of the sound shaft (2) to the magnetic tape (8) form a drive mechanism, two winding shafts (4, 5), tape-spindles (6, 7) placed on said winding shafts (4, 5) and winding and unwinding mechanisms connected with the winding shafts, these mechanisms being asynchronous winding clutches (22, 23) and asynchronous unwinding clutches (20, 21) are included in the system. The clothes are interconnected with each winding shaft (4, 5), with the other side of the winding clutches (22, 23) is connected with the driving motor (19). The other side of the unwinding clutches (20, 21) connected with the frame (1), and only one of said connections functions simultaneously on the same winding shaft (4 or 5). With respect of the other winding shaft (5 or 4) the connections are reversed compared with that of the first winding shaft (4 or 5).

Tape-conveying system for forward and backward playing magnetic tape

The invention relates to an apparatus for the removal of ferromagnetic materials from liquids, organic or inorganic compounds and mixtures, respectively, mainly fuels, for treating with a magnetic field and reduction of surface tension. The apparatus according to the invention contains a plurality -at least two- coaxial magnets having a hole therein and being in the direction of flow of the liquid and being separated by a disc, as well as housing made of a non-magnetizable material closed at both ends with end-closing means and provided with a bore for passing through the liquid to be treated.

Apparatus for the removal of ferromagnetic materials from liquids,

The invention relates to a process for the preparation of clay mineral-containing gels with stabilized structure and reversible water absorption ability. According to the invention an aqueous suspension containing a thixotropic, activated, swelling clay mineral of three-layer structure and/or a swelling chain silicate is treated with a water soluble polymer capable of reacting with the clay mineral and/or chain silicate, the clay mineral:polymer:water ratios are determined at which the resistance of medium of the resulting suspension is at least ten times higher than that of the initial, polymer-free suspension, and then the components are reacted with each other in the pre-determined ratios.

Process for the preparation of clay mineral-containing gels with

The invention relates to synergistic antiphlogistic pharmaceutical compositions comprising a pyrido [1,2-a]-pyrimidine derivative of the Formula I ##STR1## wherein R.sup.1 and R.sup.2 are lower alkyl and R.sup.3 stands for lower alkoxycarbonyl or carbamoyl and the dotted line represents an optionally hydrogenated band or a salt or quaternary salt thereof and 1-[p-chloro-benzoly]-2-methyl-5-methoxy-indolyl-3-acetic acid of the Formula II ##STR2## The advantage of the compositions is that as a result of the synergistic activity of the compound of the Formula I, the antiphlogistic Indomethacin of the Formula II can be administered in a significantly lower doses and consequently the unfavorable side effects of the latter compound are mitigated.

Synergistic antiphlogistic compositions and methods of use

The invention relates to a process for stabilizing an aqueous gel-forming system comprising one or more water-soluble acrylic monomer as gellifying agent, methylenebis-acrylamide co-monomer and/or one or more mono- or bivalent aldehyde as cross-linking agent, a redox catalyst system containing an alkali metal and/or ammonium persulfate as oxidizing component along with one or more amine compound as reducing component, furthermore optionally one or more water-soluble polymer for adjusting the viscosity of the solution and/or modifying the gel structure. According to the invention said gel-forming system is stabilized by saturating it with molecular oxygen. The invention relates further to a process for improving the strength and impermeability of particulate materials and/or solid articles. According to the invention an aqueous gel-forming system, stabilized as discussed above, is applied into or onto the article to be treated or into the surroundings thereof, and oxygen saturation of the gel-forming system is suspended at an appropriate time.

Process for stabilizing aqueous solutions used in the preparation of

Compounds of the formula I ##STR1## or pharmaceutically acceptable salts, hydrates, stereoisomers, optically active isomers, geometrical isomers or tautomeric forms thereof are disclosed wherein

Nitrogen bridgehead compounds having anti-allergic effect

The invention relates to stabilized, prostaglandin-containing tablets with controlled rate of solubility, for local use and a process for the preparation thereof. The tablets according to the invention comprise 0.2 to 20% by weight of one or more natural or synthetic prostaglandins, 0.4 to 40% by weight of a non-toxic buffer, which adjusts the pH of the liquid film formed on the surface of the solid phase due to air humidity, to 3 to 5, 1 to 50% by weight of stearic acid, 0 to 15% by weight of an alkali earth metal stearate, 10 to 95% by weight of lactose and/or mannite, 0 to 15% by weight of a further granulation aid, 1 to 30% by weight of a disintegrating agent and optionally 0.5 to 10% by weight of a flavoring and aroma substance and are prepared under a pressure of 500 to 2000 kp./cm.sup.2. (49.03 to 196.13 MPa).

Stabilized, prostaglandin-containing tablets with controlled rate of

Compounds of the formula ##STR1## or pharmaceutically acceptable acid-addition or quaternart ammonium salts thereof

Pyrido[1,2-A]pyrimidine derivatives and method of analgesic treatment

Antiallergic and antiasthmatic compounds of the formula ##STR1## of which 9-phenylamino-6-methyl-4-oxo-6,7-dihydro-4H-pyrido(1,2-a)pyrimidine-3-carb oxylic acid and optically active antipodes and salts thereof are examples.

Antiallergic nitrogen bridge-head compounds

Antiallergic and particularly antiasthmatic compounds of the formula: ##STR1## of which 9-phenylhydrazono-6-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimi dine-3-carboxylic acid is an especially significant example.

Compounds of the formula: ##STR1## or pharmaceutically acceptable acid addition or quaternary ammonium salts thereof wherein

Pyrido[1,2-a]pyrimidine derivatives

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Budapest, Hungary

Gabor Nagy