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| Number | Title | Issue Date |
| 5221769 | Production of p-acetylaminophenol from p-aminophenyl acetate p-Aminophenyl acetate is isomerized to p-acetylaminophenol in the presence of an acid such as acetic acid or phosphoric acid.... | 06/22/1993 |
| 5197866 | Air pump for a natural mineral water bottle The invention pertains to an air pump for a natural mineral water bottle. The pump comprises a cover member, a bellows member disposed within the cover member and a stopper member fixed to the mouth of the bottle by screwing a locking nut so that the bott... | 03/30/1993 |
| 5182409 | Preparation process of bis(1,2-diaryl-1,2-ethyolenedithiolato)nickel-based complex The present invention is a process for the preparation of bis(1,2-diaryl-1,2-ethylenedithiolato)-nickel-based complex which is characterized by reacting a benzil-based compound or a benzoin-based compound with phosphorus pentasulfide in 1,3-dimethyl-2-imi... | 01/26/1993 |
| 5180838 | Phototoxic compounds for use as insect control agents A method is provided herein for controlling insects which are harmful to agriculture and forestry and which are also harmful both to humans and to domestic animals. The method involves the steps of applying to a locus infested with such insects, a composi... | 01/19/1993 |
| 5177139 | Moulding material made from elastomeric polyolefin rubbers, polyethylenes and/or ethylene copolymers and additives; and its use for elastic clamp-proof courses A description is given of a molding compound made of elastomeric polyolefin rubbers, polyethylene and/or ethylene copolymers and additives, said compound comprising per 100 parts of polyolefin rubber, 25 to 100 parts by weight of polyethylene and/or ethyl... | 01/05/1993 |
| 5175309 | Preparation process of N-substituted maleimides A process for the preparation of N-substituted maleimides by conducting heat-dehydration and dehydrating imidization of N-substituted maleamic acids under azeotropic distillation of generated water in a solvent mixture containing a solvent capable of form... | 12/29/1992 |
| 5175199 | High transparency silica-titania glass beads, method for making, and light transmission epoxy resin compositions High transparency silica-titania glass beads are characterized by a linear transmittance of at least 70% as measured at a wavelength of 900 nm to 600 nm by a specific measurement method. Such beads are prepared by hydrolyzing and polycondensing a silicon ... | 12/29/1992 |
| 5166199 | 11ଲ-aryl-16,17-cyclohexano-estra-4,9-dienes 11.sym.-Aryl-16,17-cyclohexano-estra-4,9-dienes of formula ##STR1## wherein R1 is H or a methyl group; R2 is --OCH3, --SCH3, --N(CH3)2, --NHCH3, --CN, --CHO, --COCH... | 11/24/1992 |
| 5164302 | Method for preparing 7ଲ-hydroxy-4-pregnene-3,20-dione derivatives Novel 7ଲ-hydroxy-4-pregnene-3,20-dione derivatives are disclosed. The group of these compounds has possibility of being utilized as an intermediate for the synthesis of progesterone derivatives having ovulation-inhibiting activity. These compounds themse... | 11/17/1992 |
| 5162777 | Submerged alarm device for monitoring swimming pools An alarm device is placed in the water of a swimming pool for monitoring the swimming pool by triggering an alarm in response to changes in water pressure or sound as a result of persons falling into the swimming pool. The device includes a switch element... | 11/10/1992 |
| 5162312 | 11ଲ-substituted 16, 17-methylene-estra-4,9-dien-3-ones 11ଲ-substituted-16, 17-methylene-estra-4,9-dien-3-ones of formula I ##STR1## wherein R1 is a methyl or ethyl group; R2 is H; a C1-6 -alkyl, -alkoxymethyl, -alkanoyl or -alkoxcarbonyl group ; 2-meth... | 11/10/1992 |
| 5162462 | Process for the preparation of aminoplastic resin for use in the production of particle boards with low formaldehyde emission Process for the production of aminoplast resins. The process entailing the addition of ureido-2-diamino-4,6-triazine-1,3,5, and optionally melamine, to aminoplast resin. Preferably the triazine is added in a proportion of at least 10% by weight. The resul... | 11/10/1992 |
| 5160707 | Methods of and apparatus for removing odors from process airstreams After aerating sewage sludge in a composting process, a stream of process air is treated to remove odors therefrom by injecting into the airstream an atomized mixture of dilute sulfuric acid and dilute surfactant to remove ammonia and odorous organic comp... | 11/03/1992 |
| 5160497 | Phenol production process Phenol production process wherein: 1) benzene is reacted with propene and isopropylic alcohol by contacting a catalyst based on a dealuminized Y zeolite with a SiO2 /Al2 O3 molar ratio ranging from 8 to 70, then the obtained pr... | 11/03/1992 |
| 5160501 | Method for thermal conversion of methane and reactor for carrying out the method Method and apparatus for thermal conversion of methane to hydrocarbons of higher molecular weight, comprising a reactor 1 of elongated shape, connected at a first end to means 5 for supplying gas mixture containing methane (process gas), and connected at ... | 11/03/1992 |
| 5158957 | 2-substituted ergolines 2-Substituted ergolines ##STR1## wherein C2 C3 and C9 C10 represent a single of double bond; X is oxygen or sulfur; R2 is C1-10 alkyl, optionally halogen-substituted C2-10 ... | 10/27/1992 |
| 5158676 | Chromatography apparatus Chromatography systems with devices for compressing the column packing and/or for pulsation damping have incorporate an additional device in which a preselected minimum pressure, which is independent of the eluent pressure, is combined with a second press... | 10/27/1992 |
| 5158652 | Process for the separation of tert. butyl ethyl ether from mixtures For the separation of tert. butyl ethyl ether from mixtures with ethanol, there are provided two distillation stages, the first being carried out at a pressure p1 equal to or higher than 1 bar, the second at a pressure p2 below p | 10/27/1992 |
| 5158703 | Resin composition for ultraviolet luminescent screen Disclosed is a resin composition for ultraviolet luminescent screen comprising one or more of luminescent compound represented by the formula (I): ##STR1## wherein X is ##STR2## wherein R1, R2, R3 and R... | 10/27/1992 |
| 5157202 | Gas absorption for separation of hydrocarbons For recovery of low-boiling hydrocarbons by scrubbing, the crude gas mixture which contains low-boiling and high-boiling hydrocarbons, is treated with a scrubbing agent, by which the high-boiling components are scrubbed-out of the gas mixture. The loaded ... | 10/20/1992 |
| 5157042 | 3-oxa-5-fluoro-carbacyclins, their preparation and use as medicinal agents Carbacyclin derivatives of Formula I ##STR1## wherein R1 is OR2, wherein R2 is hydrogen, alkyl, cycloalkyl, aryl, ##STR2## or a heterocyclic residue; or R1 is NHR3 wherein R3 is ... | 10/20/1992 |
| 5156678 | Coating with organic dyes Effect pigments based on interference pigments coated with phthalocyanine or metal phthalocyanine dyes, characterized in that the dyes are applied to the pigments as a strongly adhering film without the aid of binders or other auxiliary materials, are out... | 10/20/1992 |
| 5157198 | Process for isomerizing normal paraffins in the presence of at least one catalyst based on a particular omega zeolite The invention relates to a process for isomerizing normal paraffins, particularly C5 -C6, in the presence of at least one catalyst based on an omega zeolite having a molar ratio SiO2 /Al2 O3 ranging f... | 10/20/1992 |
| 5154943 | Plasma CVD process for coating a dome-shaped substrate A plasma-CVD process and apparatus for coating strongly arched, dome-like substrates with a dielectric and/or metallic coating system on the inside and/or outside face. The thickness of the gas layer to be reacted above the face to be coated is adjusted s... | 10/13/1992 |
| 5154179 | Device construction and method facilitating magnetic resonance imaging of foreign objects in a body Device construction facilitating the visibility of a device when inserted into a body being subjected to magnetic resonance imaging having a member adapted to be inserted into the body. The member carries material exhibiting a characteristic under magneti... | 10/13/1992 |
| 5153216 | Method for treating chest pain The known compound 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]4H-carbaz ol-4-one, which is available commercially as the dihydrate of its hydrochloride acid addition salt, is useful for the treatment of chest pain not associated ... | 10/06/1992 |
| 5152761 | Process and device for protecting the proximal launch sides of laser catheters To protect the launch surfaces of laser catheters fed with short-pulsed laser radiation, the individual optical fibers are placed on the launch side in hexagonally closest packing. Ablation-resistant materials are applied to the outer circumference of the... | 10/06/1992 |
| 5152431 | Pump apparatus for dispensing a selected one of a plurality of liquids A single pump assembly is used to dispense liquid from a selected one of a plurality of compartments in a container vessel. The pump assembly is detachably mounted on the container vessel and rotates with respect to the container vessel to select the liqu... | 10/06/1992 |
| 5153163 | Process for the pretreatment of a catalyst by a mixture of a sulphur agent and an organic reducing agent The invention relates to a pretreatment of a petrochemical or refining catalyst containing at least one metal in metallic or metallic oxide form, deposited on a support. The catalyst is impreganted by a solution or a suspension containing on the one hand ... | 10/06/1992 |
| 5151481 | Polymers having liquid crystal phases containing 2-cyanoacrylic acid ester group The invention relates to polymer materials which contain liquid crystal phases and have mesogenic groups which are bonded chemically directly or via a spacer and contain a 2-cyanoacrylic acid ester unit.... | 09/29/1992 |
| 5151213 | Fluorine-containing aromatic compounds Fluorine-containing aromatic compounds of the formula I ##STR1## in which R1 is alkyl having up to 12 C atoms or alkenyl having 2 to 12 C atoms, Q1 and Q2 are each, independently of one another, --O-- or a single bond... | 09/29/1992 |
| 5151110 | Molecular sieve sensors for selective detection at the nanogram level The invention relates to a selective chemical sensor for selective detection of chemical entities even at the nanogram level. The invention further relates to methods of using the sensor. The sensor comprises: (a) a piezoelectric substrate capable of detecting... | 09/29/1992 |
| 5151258 | NOx reduction and control using hydrogen peroxide in the absorber column A method for reducing NOx emissions through the selective addition of hydrogen peroxide in the aqueous liquor of an absorber column, wherein periods of addition are determined by increases in temperature of the aqueous liquor.... | 09/29/1992 |
| 5149853 | Organometallic compounds In a process for the production of thin films and epitaxial layers by gas-phase deposition, intramolecularly stabilized organometallic compounds are employed as a source of metal.... | 09/22/1992 |
| 5147965 | Method for the preparation of a higher alkoxy-substituted organopolysiloxane The invention provides a method for the preparation of a higher alkoxy-substituted organopolysiloxane having, in a molecule, at least one alkoxy group of 4 to 30 carbon atoms bonded to the silicon atom. The method comprises: mixing an organohydrogenpolysi... | 09/15/1992 |
| 5147857 | Glycolic acid derivatives New glycolic acid derivatives of the formula I X--O--CR1 R2 --CO--Y--NR3 --CHR4 --CR5 --CH2 --CR6 R7 --Z I in which R1 to R7, X, Y and Z have the meanings ... | 09/15/1992 |
| 5146683 | Reinforcement cutter The present invention provides a scissor-action reinforcement cutter comprising a lower jaw and an upper jaw which is of smaller profile than the lower jaw, a first and a second shearing cutter means dismountably secured to each of opposed inner lateral s... | 09/15/1992 |
| 5146367 | Arrangements for, method of, and lenses configured to provide thermal compensation in lens element mounts Mounts for plastic lens elements of differing diameters or materials include a separate V-block for mounting each lens element, wherein the V-blocks for lens elements of a smaller diameter converge at angles less than V-blocks for lens elements of a large... | 09/08/1992 |
| 5145847 | 14,17-etheno- and -ethanoestratrienes, processes for the preparation of these compounds, as well as their use for the production of medicinal agents Disclosed are novel 14,17-etheno- and -ethanoestratrienes according to general Formula I ##STR1## wherein X is a --CH2 --CH2 or ##STR2## R1 is a hydrogen atom, a C1 - to C15 -acyl, be... | 09/08/1992 |
| 5145757 | Method of forming stable images in electron beam writable glass compositions A silicate glass article comprising an amount of SiO2 effective as a network former and, at least one surface of said article having a substantially continuous silver and hydration content over its area, effective to render said surface darkena... | 09/08/1992 |