Patents Represented by Attorney Donald L. Johnson
  • Patent number: 4879121
    Abstract: A method of improving the lean/fat ratio in broiler poultry by adding a small effective amount of zeolite A up to about four weight percent of the feed, to the feed of the broiler poultry, and regularly feeding the broiler poultry the feed containing the zeolite A.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: November 7, 1989
    Assignee: Ethyl Corporation
    Inventors: Sebastian M. Laurent, Robert N. Sanders
  • Patent number: 4745189
    Abstract: A method of preparing N-halogenated organic heterocyclic compounds by reacting in an aqueous mixture under alkaline conditions (e.g. NaOH) and in the presence of a halogenated organic compound (e.g. methylene chloride), a N-hydrogen organic heterocyclic compound containing at least one NH group (e.g. 5,5-dimethylhydantoin) and a halogen-producing chemical (e.g. Br.sub.2).
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: May 17, 1988
    Assignee: Ethyl Corporation
    Inventors: John Y. Lee, Mark A. Templeton
  • Patent number: 4740629
    Abstract: A process for partially brominating non-condensing ring aromatics (e.g. diphenyl ether) in the absence of a solvent by adding the polyaromatic to a stoichiometric excess of liquid bromine containing a zirconium halide catalyst. Product containing three bromine atoms per benzene ring (e.g., hexabromodiphenyl ether) is formed in high selectivity by keeping the reaction mixture below a threshold temperature at which higher bromine substitution occurs.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: April 26, 1988
    Assignee: Ethyl Corporation
    Inventors: David R. Brackenridge, Bonnie G. McKinnie
  • Patent number: 4737348
    Abstract: A reactor apparatus (10) adapted for continuously producing molten, solar grade purity elemental silicon by thermal reaction of a suitable precursor gas, such as silane (SiH.sub.4), is disclosed. The reactor apparatus (10) includes an elongated reactor body (32) having graphite or carbon walls which are heated to a temperature exceeding the melting temperature of silicon. The precursor gas enters the reactor body (32) through an efficiently cooled inlet tube assembly (22) and a relatively thin carbon or graphite septum (44). The septum (44), being in contact on one side with the cooled inlet (22) and the heated interior of the reactor (32) on the other side, provides a sharp temperature gradient for the precursor gas entering the reactor (32) and renders the operation of the inlet tube assembly (22) substantially free of clogging. The precursor gas flows in the reactor (32) in a substantially smooth, substantially axial manner.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: April 12, 1988
    Inventor: Harry Levin
  • Patent number: 4734471
    Abstract: High molecular weight non cross-linked polyfluoroalkoxyphosphazenes containing some unsaturated groups can be cured (i.e. cross-linked) by contact with a catalyst consisting essentially of platinum, a platinum halide or a haloplatinic acid or their hydrates (e.g. chloroplatinic acid hydrate).
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: March 29, 1988
    Assignee: Ethyl Corporation
    Inventor: Suae-Chen Chang
  • Patent number: 4731196
    Abstract: A manganese exchanged Zeolite A laundry bleach activator is made in a single reaction vessel by mixing dry Zeolite A with an inorganic acid in an amount to lower the pH to 8.0-10.5, adding and mixing in an aqueous manganese (II) salt, adding and mixing in a chelating agent such as sodium tripolyphosphate, adding and mixing in a binding agent such as carboxymethylcellulose, mixing and adding water to cause the Mn-exchanged Zeolite A, chelating agent and binder to agglomerate to form small granules and drying the resulting small granules for use as a bleach activator in laundry detergent compositions.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: March 15, 1988
    Assignee: Ethyl Corporation
    Inventors: James S. Staton, Patrick C. Hu
  • Patent number: 4731492
    Abstract: A process of ortho-alkylating arylhydroxides, e.g., phenol, by passing a mixture of arylhydroxide, olefin and an inert hydrocarbon diluent in the liquid phase through a bed of activated alumina at an elevated temperature and pressure. Conversion and selectivity is improved over that obtained without the diluent.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: March 15, 1988
    Assignee: Ethyl Corporation
    Inventors: Steven L. Wiker, S. Wendell Holmes, Jr., Dixie E. Goins
  • Patent number: 4730070
    Abstract: Amine alane decomposition is catalyzed by titanium. This effect of titanium can be suppressed by treating it with a passivating agent such as air, nitrous oxide, carbon monoxide and alkyl nitrites. Such agents may be used (1) to treat titanium-containing NaAlH.sub.4 preparations to be used in preparing amine alanes, or (2) to treat amine alanes containing titanium as an impurity, e.g. in finely divided form. Furthermore, the reaction of NaAlH.sub.4, amine, and a halide substance to produce an amine alane can be conducted in the presence of a passivating agent.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: March 8, 1988
    Assignee: Ethyl Corporation
    Inventors: Everett M. Marlett, Frederick W. Frey, Steven W. Johnston, Herbert D. Kaesz
  • Patent number: 4728463
    Abstract: Brominated styrene-maleate copolymer containing at least 50 weight percent bromine and its use as a fire retardant.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: March 1, 1988
    Assignee: Ethyl Corporation
    Inventors: Burton J. Sutker, Gen-Shing Ti, Mo A. Khuddus
  • Patent number: 4727148
    Abstract: A 4-cyclohexenylpyridine is brominatively aromatized to the corresponding 4-phenylpyridine by brominating the cyclohexenylpyridine, such as a 4-(halocyclohexenyl)pyridine, especially a 4-(4-halocyclohex-3-enyl)pyridine hydrochloride, and heating the brominated product in the presence or absence of any added base or hydrogen acceptor to form, e.g., a 4-(halophenyl)pyridine. The invention is of particular utility in the manufacture of intermediates of antibacterial 1-alkyl-1,4-dihydro-4-oxo-7-(4-pyridyl)-3-quinolinearcarboxylic acids.
    Type: Grant
    Filed: August 25, 1986
    Date of Patent: February 23, 1988
    Assignee: Ethyl Corporation
    Inventors: Paul F. Ranken, Venkataraman Ramachandran
  • Patent number: 4727191
    Abstract: A (hydrocarbylthio)aromatic amine, such as a methylthiosubstituted toluenediamine, is separated from corresponding aromatic amines containing fewer hydrocarbylthio groups by washing an organic solution of the amine mixture with a dilute aqueous acid having a pKa value below 7 to extract at least a portion of the corresponding aromatic amines.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: February 23, 1988
    Assignee: Ethyl Corporation
    Inventor: Christopher J. Nalepa
  • Patent number: 4725324
    Abstract: A method of forming a dual thermal barrier hollow wherein separate metal shapes are joined together with a non-conductive adhesive tape and a thermal barrier material is poured into receiving channels suitably formed by the joining of the two metal shapes, and upon hardening of the thermal barrier material, a dual thermal barrier hollow having structural integrity is formed.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: February 16, 1988
    Assignee: Capitol Products Corporation
    Inventor: Dietrich F. Schmidt
  • Patent number: 4725425
    Abstract: A continuous process for the extraction of bromine from a bromine-rich brine in high efficiency while dramatically reducing the steam requirement for the distillation by operating a contact tower under vacuum. The contact tower is designed to operate near the boiling point of the feed brine so that only stripping steam is needed to remove elemental bromine from the brine.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: February 16, 1988
    Assignee: Ethyl Corporation
    Inventors: Kenneth C. Lesher, Herbert W. Henry
  • Patent number: 4724960
    Abstract: A package for containing relatively long and relatively heavy rolls of polymeric film or the like comprising a container of a predetermined size and shape made of corrugated paper board or similar inexpensive materials with one or more fillets of a predetermined size and shape made of corrugated paper board, Styrofoam, foamed plastic or the like suitably affixed to the container at an appropriate place so as to provide a package which has the shape of a rectangular box and has vertical integrity when a plurality of the containers are stacked one upon the other.The container may be a rectangularly shaped box or hollow hexahedron with fillets affixed to the internal surfaces thereof, a tubular shaped cylinder with fillets affixed to the exterior surface thereof or alternatively a triangularly shaped box or hollow pentahedron.
    Type: Grant
    Filed: October 7, 1982
    Date of Patent: February 16, 1988
    Assignee: Ethyl Corporation
    Inventors: Richard W. Goodrum, James W. Wheeler
  • Patent number: 4725681
    Abstract: An ethanolamine, preferably diethanolamine, is converted to triethylenediamine or 1,4-bis(2-hydroxyethyl)piperazine, or both by pyrolysis using a B-subgroup metal oxide such as titanium dioxide or zirconium dioxide, as catalyst. In addition it has also been discovered that 1,4-bis(2-hydroxyethyl)piperazine and N-(2-hydroxyethyl)piperazine can be converted in high yields and conversions into triethylenediamine by pyrolysis using the same type of catalyst. When using an ethanolamine as the feedstock and a Group IV-B metal oxide as the catalyst, the process usually results in the coproduction of triethylenediamine and 1,4-bis(2-hydroxyethyl)piperazine, and the latter can be recovered and used as a raw material for the production of additional triethylenediamine, as by recycle to the same reactor or as feedstock to an additional pyrolysis reactor.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: February 16, 1988
    Assignee: Ethyl Corporation
    Inventors: Ronald L. Shubkin, Duane C. Hargis
  • Patent number: 4725419
    Abstract: A process for producing silane by reacting a silicon halide with highly reactive magnesium and a cyclic process for producing silane by reacting magnesium hydride with a silicon halide, reacting the magnesium halide as formed with an alkali metal to recover elemental magnesium, and pressure hydrogenating said magnesium to form magnesium hydride and repeat the cycle. A highly reactive magnesium hydride is formed by the homogeneously catalyzed pressure hydrogenation of magnesium, preferably using an activated transition metal catalyst such as TiCl.sub.4 and a polycyclic organic compound such as anthracene. The highly activated magnesium hydride is thereafter used for reaction with silicon halide to produce silane.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: February 16, 1988
    Assignee: Ethyl Corporation
    Inventors: Everett M. Marlett, Bonnie G. McKinnie
  • Patent number: 4724247
    Abstract: An aromatic diphosphite as a antioxidant for organic materials. The aromatic diphosphite has the formula: ##STR1## wherein each R is independently selected from the group consisting of hydrogen and methyl; and R.sup.1, R.sup.2 and R.sup.3 are each independently selected from the group consisting of hydrogen and straight chain and branched alkyl groups having from 1 to about 18 carbon atoms with the proviso that at least two of said R.sup.1, R.sup.2, and R.sup.3 are alkyl groups having at least three carbon atoms.
    Type: Grant
    Filed: July 18, 1986
    Date of Patent: February 9, 1988
    Assignee: Ethyl Corporation
    Inventors: Lester P. J. Burton, Kestutis A. Keblys, Ronald L. Shubkin
  • Patent number: 4721810
    Abstract: Aromatic amines are alkylated by reaction with an acyclic ether or an unstrained cyclic ether in the presence of a B-subgroup metal oxide alkylation catalyst, preferably a Group IV-B metal oxide with or without a minor proportion of a Group VI-B or Group VIII metal oxide, so that alkylation of the aromatic amine occurs. Under most reaction conditions ether alkylating agents such as diethyl ether not consumed in the alkylation reaction pass through the reaction zone undecomposed and thus can be readily recovered for recycle or other use.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: January 26, 1988
    Assignee: Ethyl Corporation
    Inventor: Duane C. Hargis
  • Patent number: 4721790
    Abstract: Fluoronitroaralkyloxazolines are prepared by reacting a fluoronitroaromatic compound with an alpha-substituted 2-alkyloxazoline in an inert solvent and in the presence of a base. Fluoronitroaralkyloxazolines are useful intermediates for the synthesis of pharmaceuticals, such as flurbiprofen.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: January 26, 1988
    Assignee: Ethyl Corporation
    Inventor: Kenneth C. Lilje
  • Patent number: 4720533
    Abstract: Organophosphazene polymers having acyloxysilyl or alkoxysilyl substituents are curable at room temperature when exposed to atmosphere containing moisture.
    Type: Grant
    Filed: July 22, 1986
    Date of Patent: January 19, 1988
    Assignee: Ethyl Corporation
    Inventor: F. Alexander Pettigrew