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| Number | Title | Issue Date |
| 4943384 | Cyclohexane derivatives Cyclohexane derivatives of the formula I R1 --A1 --Z1 --A2 --R2 I wherein R1 and R2 are each H or an alkyl group which has 1-10 C atoms and in which one or two non-adjacent CH | 07/24/1990 |
| 4908323 | Method for the determination of organic peroxides in organic solutions A peroxide-testing method using a reagent based on Ti(IV) compounds which contains, in a lower aliphatic alcohol having 1-5 C atoms, a compound TiX4 in which X is Cl or OR with R being an alkyl group having 1-5 C atoms, and where appropriate, u... | 03/13/1990 |
| 4870112 | Foamable, gelable and heat vulcanizable composition of matter for the the manufacture of latex foam A foamable, gelable and heat-vulcanizable composition for the manufacture of latex foam having, e.g., the following properties: (a) the indentation hardness must be sufficiently high; (b) the pore structure is to be uniformly fine for an adequate layer thickne... | 09/26/1989 |
| 4868237 | Mechanically disruptible bone cement The invention relates to a bone cement based on physiologically tolerated polymers, the incorporation of acoustic perturbation elements having a sound resistance differing from that of the polymer making it possible, in the case of a necessary re-operatio... | 09/19/1989 |
| 4861916 | Photoinitiators for photopolymerization of unsaturated systems Compounds of the general formula I ##STR1## wherein Z is CR1 R2 (OR3) or phenyl, R1 being H, C1-6 -alkyl or phenyl, R2 being H, C1-6 -alkyl or C1-6 -alkoxy and R3 | 08/29/1989 |
| 4853390 | (2-Haloergolinyl)-N'-N'-diethylurea compounds useful as medicinal agents E.G., as neuroleptics (2-Haloergolinyl)-N',N'-diethylurea derivatives of Formula I ##STR1## and the salts thereof, wherein R is hydrogen, alkyl of up to 6 carbon atoms, or alkenyl of up to 3 carbon atoms, X is halogen, ##STR2## is a CC single or CC double bond, and ... | 08/01/1989 |
| 4851552 | Process for the production of 13-oxabicyclo(10.3.0)pentadecane and process for the production of intermediates 13-oxabicyclo[10.3.0]pentadecane, a valuable ambergris fragrance, is prepared by reacting cyclododecanone with cyanoacetic acid in the presence of a Knoevenagel catalyst to form cyclododecenylacetonitrile, the nitrile is hydrolyzed to cyclododecenylacetic... | 07/25/1989 |
| 4849577 | Process for eliminating jointly arsenic and carbon oxysulfide from an unsaturated hydrocarbon cut in the liquid phase Process for eliminating jointly arsenic and carbon oxysulfide from an unsaturated hydrocarbon cut, wherein said hydrocarbon cut is contacted with an absorbing mass containing a support and lead oxide, comprising contacting the hydrocarbon cut in the liqui... | 07/18/1989 |
| 4845042 | Adjuvant for immunization The invention provides an immunizing agent or preparation e.g. a vaccine for parenteral administration comprising particles of coalesced and covalently interlinked physiologically compatible proteinaceous molecules and, entrapped in these particles, an im... | 07/04/1989 |
| 4845136 | Adhesive resin composition An adhesive resin composition comprising (a) an expoxy resin, (b) a curing agent therefor, and (c) an aluminum orthophosphate-zinc compound rust inhibiting pigment. When applied to the assembly of car body components, the composition assures improved bond... | 07/04/1989 |
| 4845090 | Nitroxyl compound and diagnostic media based thereon useful for enhancing NMR imaging Diagnostic media suitable for NMR diagnoses contain compounds of Formula I ##STR1## wherein is a single bond or a double bond, X is the grouping --(CH2)n -- or, if is a single bond, also the grouping --NHCO(CH2) | 07/04/1989 |
| 4842753 | Silicone grease composition A silicone grease composition composed of an organopolysiloxane fluid and a thickneing agent is admixed with from 0.5 to 20% by weight of a copper dialkyl dithiocarbamate or, in particular copper diethyl dithiocarbamate as a lubrication improving agent so... | 06/27/1989 |
| 4842909 | Container for storing liquids comprising carbon-carbon composites Carbon bonded carbon fiber composites are useful to minimize or eliminate volatility, splashing and losses (e.g., due to the effect of applied forces) of liquids in containers, especially of liquid cryogens in dewars. They are also useful as getters for g... | 06/27/1989 |
| 4843157 | 13alpha-alkylgonan-delta 9(11)-5,10-epoxides 13alpha-alkylgonan-delta9(11) -5,10 epoxides of the formula ##STR1## in which R is a hydrogen, methyl or ethyl and Z is a ketal or thioketal group effective as a keto-blocking group, are provided by a process wherein a compound of the formula ... | 06/27/1989 |
| 4842071 | Process for the selective reduction of water inflows in oil or gas producing wells This process comprises injecting a non-hydrolyzed acrylamide polymer or copolymer into the producing formation and producing hydrolysis thereof in situ by subsequent injection of an alkali metal basic compound. It is then possible to restart the well in o... | 06/27/1989 |
| 4840993 | Impact-resistant polyamide molding compounds Impact-resistant polyamide molding compound consisting of a mixture of A. 60 to 98% by weight of a polyamide and B. 2 to 40% by weight of a polyalkenamer, wherein the mixture is treated at elevated temperatures with 0.05 to 5% by weight of the sum of components A ... | 06/20/1989 |
| 4839031 | Process for performing the separation of extruded materials which may or may not show imperfections The invention relates to a process for the separation of granulate materials, in extruded form of different lengths and of the same or different diameter. It is characterized by the use of a helicoidal vibrating elevator subjected to vibrations whose ampl... | 06/13/1989 |
| 4839069 | Olefin polysulfide compositions their manufacture and use as additives for lubricants Compositions of olefin polysulfides having an increased solubility in mineral oils and in synthetic oils, particularly of the hydrogenated polyalphaolefin (P.A.O.) type, are disclosed. They are prepared more particularly by reacting a sulfur monochloride with ... | 06/13/1989 |
| 4839282 | Preparation of 3-oxo-Ɗ1,4 -steroids A process for preparing a 3-oxo-Ɗ1,4 -steroid comprises fermenting the corresponding 3-oxo-Ɗ4 -steroid, saturated in the 1,2-position, witih a living culture of Arthrobacter simplex in the presence of 0.04 g to 0.12 g of cobalt(II)... | 06/13/1989 |
| 4836988 | Apparatus for removal of nitrogen oxides from flue gas Apparatus for removal of deleterious gaseous components from a flue gas, the flue gas is cooled, optionally subjected to preliminary purification, and optionally depleted of SO2. It is then heated in at least one heat exchanger and is passed ov... | 06/06/1989 |
| 4837270 | Unsaturated polyester resin and molding compounds obtained therefrom Thermosetting and cold-setting unsaturated polyester resin molding compounds which contain only one saturated polyester as LP additive and which do not show LP drift under usual storage conditions, are provided. Molded articles molded therefrom exhibit lo... | 06/06/1989 |
| 4837372 | Process for oligomerization of olefins Oligomerization and isomerization of olefins, e.g., butene, is performed in the gas phase on a solid catalyst containing a superacid fluorine compound of an element of Group III, IV and/or V of the periodic table, e.g. Al2 O3 impregn... | 06/06/1989 |
| 4837825 | Passive ambience recovery system for the reproduction of sound A multi-channel stereophonic system in which different audio signals are produced and caused to converge upon the ear of the listener at selectively spaced time intervals so as to enhance the realism of the sound impressed upon the listener. A pair of aux... | 06/06/1989 |
| 4837402 | Process for the preparation of D-(+)-biotin D-(+)-Biotin can be prepared from optically active hydantoins of the formula I ##STR1## wherein R1, R2, R3, X and Y have the meaning given in patent claim 1, in a simple, stereospecific manner. Furthermore bicyclic ni... | 06/06/1989 |
| 4837158 | Process for characterizing a catalyst by determination of its conversion and coking activities For characterizing a catalyst, particularly a catalyst useful in refining of oil residues, by determination of its conversion and coking activities, the steps of: (a) impregnating the catalyst with a hydrocarbon mixture, (b) heating the impregnated catalyst, a... | 06/06/1989 |
| 4837373 | Test strips The invention relates to test strips for the detection of substances present in liquids and comprises a firm support and matrices impregnated with reagents. The matrices are spaced from one another on the support by means of adhesive strips, and the adhes... | 06/06/1989 |
| 4837303 | Novel somatostatin derivatives Somatostatin derivatives of general Formula I ##STR1## wherein at least one of the residues X represents a moiety, bound to the free amino group of alanine or lysine, of Formula II ##STR2## with R meaning an alkyl group containing 7-23 carbon at... | 06/06/1989 |
| 4834188 | Fire extinguishing system for cookstoves and ranges A fire extinguishing system for a cookstove or range includes a fire extiisher mounted above a hood positioned over the cookstove or range. The fire extinguisher is connected to a pair of nozzles within the hood to dispense fire suppressant over the cook... | 05/30/1989 |
| 4834904 | Nitrogen-containing heterocycles Optically active nitrogen-containing heterocycles of the formula I according to claim 1 are suitable as components for ferroelectric liquid crystalline materials.... | 05/30/1989 |
| 4834905 | Ring compounds Compounds of the formula wherein R1 and R2 are each independently alkyl or alkoxy each of 1-12 C atoms, F, Cl, Br, CN or --Q3 --R3, or one of R1 and R2 can also be H; Q1, Q2 | 05/30/1989 |
| 4834906 | Smectic A liquid crystal compositions Liquid crystal compositions comprising as a first part between 40 and 99% by weight in aggregate of one or more materials selected from one or more of the six compound classes (1) to (3'), wherein R is in every instance an alkyl chain containing between 2... | 05/30/1989 |
| 4834962 | Process and apparatus for the catalytic reaction of gases A process for the catalytic gaseous phase reaction of a reactive gas wherein the heat of reaction generated produces a temperature elevation of less than about 150° C. in the substantially adiabatic reaction system, the improvement comprising: heating th... | 05/30/1989 |
| 4834964 | Use of charged nitroxides as NMR image enhancing agents for CSF Charged, stable, organic nitroxides, e.g., charged by a quaternary ammonium or a Bronsted acid group, are useful as NMR image enhancing agents for cerebrospinal fluid.... | 05/30/1989 |
| 4835129 | Process for regenerating or activating a n-paraffin isomerization mordenite-containing catalyst Process for regenerating or activating a catalyst for isomerizing n-paraffins, containing at least one group VIII metal supported on an acid mordenite, wherein, after having lost at least a part of its initial activity, said catalyst is treated in a first... | 05/30/1989 |
| 4835175 | Indole derivatives pharmaceutical preparations based thereon, and ଲ-receptor stimulation therewith Indole derivatives of Formula I ##STR1## wherein R1 is hydrogen, alkyl of 1-6 carbon atoms, or benzyl R2 is hydrogen, alkyl of up to 4 carbon atoms, free or esterified hydroxyalkyl of up to 4 carbon atoms, or free, amidated or esteri... | 05/30/1989 |
| 4834780 | Six adsorber pressure swing adsorption process A pressure swing adsorption process with six adsorbers is operated with only one adsorber in an adsorption phase. The adsorbers pass through switching cycles wherein, following an adsorption phase, there are conducted four- or five-stage coccurent expansi... | 05/30/1989 |
| 4833035 | Oriented polymer materials Vertically oriented polymer materials with nonlinear optical properties are obtained by polymerization of monomers containing polar groups.... | 05/23/1989 |
| 4832374 | System for indexing textual material A system for indexing releasably bound numerically categorized textual material provides a high degree of convenience. A plurality of dividers is provided each of which corresponds to and separates alpha numerical categories and each divider has a tab ass... | 05/23/1989 |
| 4830997 | Process for regenerating used catalysts by means of hydrogen peroxide aqueous solution stabilized with an organic compound The process has as an object the regeneration of catalysts containing at least one contaminating metal of the vanadium, nickel and iron group. The operation is conducted as follows: (a) The catalyst (1) is roasted in the presence of an oxygen-containing gas ... | 05/16/1989 |
| 4829105 | Electrodeposition coating composition containing modified epoxy resin having chargeable groups An anodic electrodeposition composition containing a water-soluble or water-dispersible modified epoxy resin derived from an epoxy resin having two epoxide groups and at least one alcoholic hydroxy group at the terminals and the middle of the resin backbo... | 05/09/1989 |
