Patents Examined by D. R. Phillips
  • Patent number: 4031126
    Abstract: Dialkyl peroxydicarbonates are prepared in aqueous reaction media, washed with water, and then dried with sodium sulfate, calcium chloride, or the like. Peroxydicarbonates, particularly heat-sensitive peroxydicarbonates, may be dried safely and more effectively with the use of molecular sieves by contacting substantially phase water free peroxydicarbonate with sieves. Contact between heat-sensitive peroxydicarbonate and sieves should be effected in a way that avoids abrupt, excessive warming of peroxydicarbonate.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: June 21, 1977
    Assignee: PPG Industries, Inc.
    Inventor: James A. Manner
  • Patent number: 4022814
    Abstract: Iodo-aryl carbonates, such as for example, p-iodo-benzyl carbonates, p-iodo-sec-phenethyl carbonates, p-iodo-phenethyl carbonates, p-iodo-phenyl carbonates, 3-(p-iodophenyl)propyl carbonates, 3-(p-iodophenyl)butyl carbonates, 2-(p-iodobenzyl)butyl carbonates and 2-(p-iodobenzyl)-n-hexyl carbonates, for use as radiographic media in connection with such techniques as x-ray applications including myelography, salpingography, lymphography and bronchography. An effective quantity of iodinated organic carbonate provides x-ray contrast, and the compounds of the invention may be characterized generally as carbonates having the general formula ##STR1## wherein R represents an alkyl group having from 4 to 10 carbon atoms and R' represents an iodinated phenyl linked to the ester oxygen through an alkyl chain consisting of 1 to 3 carbon atoms.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: May 10, 1977
    Assignee: Lafayette Pharmacal, Inc.
    Inventor: Barry N. Newton
  • Patent number: 4022813
    Abstract: A method is disclosed for preparing salts of monoesters of the carbonic acid, the improvement consisting in that the alcohol corresponding to the monoester is reacted with carbon dioxide and a halide of a metal of the Groups IA, IIA, IIIA and IIB of the Periodic Table, the reaction being effected in the presence of a nitrogenous, aliphatic, aromatic or heterocyclic base.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: May 10, 1977
    Assignee: ANIC, S.p.A.
    Inventors: Carlo Neri, Gioacchino Cipriani
  • Patent number: 4020093
    Abstract: A method is disclosed for the preparation of thiocarbamic acid esters by reacting an aminic compound with carbon monoxide and an organic disulphide. Elemental selenium is used as the catalyst, possibly supplemented by a tertiary amine. The temperature and pressure ranges are comparatively wide.
    Type: Grant
    Filed: April 20, 1976
    Date of Patent: April 26, 1977
    Assignee: ANIC S.p.A.
    Inventors: Paolo Koch, Bartolomeo Anfossi
  • Patent number: 4019991
    Abstract: New compounds are derived from intra-molecular and inter-molecular, in the case of a polymer, sulphur bridged hydrocarbon rings containing from 6 to 12 carbon atoms. The hydrocarbon ring is preferably 1,5-cyclooctadiene. The compounds also contain the residue of an alkyl, alkenyl or aralkyl xanthate and may also contain the residue of a further nucleophilic group. The new compounds are useful in lubricating oil compositions. The compositions may also contain other conventional lubricant additives.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: April 26, 1977
    Assignee: Edwin Cooper & Company Limited
    Inventors: Gerald John Joseph Jayne, Herbert Frank Askew
  • Patent number: 4018771
    Abstract: Production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxy pyrimidines by first reacting diketene and lower alkanoic or cycloalkanoic acid amides in the presence of catalytic amounts of Lewis bases or Lewis or Bronsted acids, followed by treating the N-acetoacetyl (lower) alkanoic or cycloalkanoic acid amide intermediates with ammonia in the presence of acid catalysts.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: April 19, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: John T. Gupton, III, Alex M. Jelenevsky, Teruko U. Miyazaki, Harris E. Petree
  • Patent number: 4017634
    Abstract: Compounds having the formula ##STR1## in which R.sub.1 is lower alkyl, cycloalkyl, or cycloalkyl-alkyl, and R.sub.2 is hydrogen or lower alkoxy. These compounds are selectively useful in controlling insects.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: April 12, 1977
    Assignee: Stauffer Chemical Company
    Inventors: Hsiao-Ling Lam, Ferenc M. Pallos
  • Patent number: 4017474
    Abstract: Polycarboxy-oxyalkylene polyester-ether polyol intermediates useful in the production of polyurethane products and methods of making the intermediates and polyurethane products are described. The polyol intermediates are made from lignin by reacting lignin with maleic anhydride, substituted maleic anhydride, or mixtures thereof to form carboxylated lignin maleic anhydride copolymers. These copolymers are then reacted with an oxyalkylating medium with or without prior hydrolysis to form the polyol intermediates. These polyester-ether polyol intermediates are then reacted with an isocyanate medium having an isocyanate with at least 2 NC0 groups per molecule to produce polyurethane products with or without simultaneous foaming.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: April 12, 1977
    Assignee: Research Corporation
    Inventors: Wolfgang Gerhard Glasser, Oscar Hsien-Hsiang Hsu
  • Patent number: 4017475
    Abstract: Aminoalkylated hydroxyphenylated lignosulfonate is described. The composition is prepared by reacting a hydroxyphenylated lignosulfonate with a nitrogen compound and an aldehyde.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: April 12, 1977
    Assignee: Georgia-Pacific Corporation
    Inventor: Charles H. Ludwig
  • Patent number: 4017530
    Abstract: This invention concerns novel thiolesters of the formulaPh--O--CR'R"--CO--S--RwhereinPh is an aryl group which may be substituted;R is an organic radical other than a phenol or a mercaptan group;R' is hydrogen or a hydrocarbon radical, preferably an aliphatic group;R" is an aliphatic, cycloaliphatic, aromatic or heteroaromatic group, which is not aliphatic when R' is hydrogen.The invention also concerns a new process for preparing the novel thiolesters.
    Type: Grant
    Filed: April 3, 1975
    Date of Patent: April 12, 1977
    Inventor: Jean Blum
  • Patent number: 4017546
    Abstract: Derivatives of 2-aroyl-3-phenylindenes, 3-aroyl-4-phenyl-1,2-dihydronaphthalenes, and 1-phenyl-2-aroyl-naphthalenes are useful as antifertility agents.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: April 12, 1977
    Assignee: Eli Lilly and Company
    Inventors: Tulio Suarez, C. David Jones
  • Patent number: 4016275
    Abstract: Compounds of the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are hydrogen, halogen, hydroxy, alkyl or alkenyl optionally substituted with halogen atoms and R.sup.3 is a haloalkyl, haloalkenyl or aryl group, possess morphogenetic hormonal mimetic insecticidal activity.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: April 5, 1977
    Assignee: Chevron Research Company
    Inventor: Joseph E. Moore
  • Patent number: 4016093
    Abstract: Neutral and overbased metal alkylphenate sulfides prepared by the steps of (1) reacting an alkylphenol sulfide with minor amounts of a basic material; (2) subjecting the reaction mixture of step (1) to steam sparging, carbonation, air sparging or a combination thereof; (3) reacting the product of step (2) with a metal oxide or hydroxide in the presence of an alcohol and carbon dioxide; and (4) subjecting the product of step (3) to steam sparging, carbonation, air sparging or a combination thereof, provide lower corrosiveness than conventional overbased metal alkylphenate sulfides. Fluid organic compositions such as, for example, oils and fuels which contain one or more of the present metal alkylphenate sulfides have excellent detergency and minimal corrosiveness with respect to metal surfaces.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: April 5, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Emil Koft, Jr.
  • Patent number: 4016210
    Abstract: A process is provided for the crystallization of bis-(4-chlorophenyl) sulphone from a reaction mixture in which it is formed by reacting chlorobenzene sulphonic acid and chlorobenzene which comprises (i) forming a crystallization liquor from the reaction mixture by adjusting the weight ratio of chlorobenzene to chlorobenzene sulphonic acid of the reaction mixture so as to maximize the quantity of bis-(4-chlorophenyl) sulphone which can crystallize from the liquor at a desired crystallization temperature, and (ii) allowing the bis-(4-chlorophenyl) sulphone to crystallize from the crystallization liquor at the temperature.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: April 5, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Patrick James Horner, John Peter Brown
  • Patent number: 4016190
    Abstract: A process for the preparation of a symmetric diarylcarbonate by reacting phosgene with a phenol wherein said reactions is carried out by the phase interface process in a diphastic mixture of an aqueous alkali metal hydroxide solution and a liquid diaryl carbonate in the presence of from 0.001 to 0.1 mol of a tertiary amine or a quaternary ammonium compound per mol of phenol.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: April 5, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: August Bockmann, Claus Wulff, Hugo Vernaleken, Wolfgang Alewelt, Uwe Hucks
  • Patent number: 4016187
    Abstract: Novel peresters having the formula ##STR1## wherein R is hydrogen or an alkyl group or an alkoxy group having 1-6 C atoms and a method for making them are provided. The novel peresters may be used to advantage in the polymerization or copolymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: April 5, 1977
    Assignee: Akzona Incorporated
    Inventor: Hendrik Harm Jannes Oosterwijk
  • Patent number: 4014915
    Abstract: Novel carbonic acid esters are disclosed which are useful in a process for introducing esterified carboxy-type protective groups on amino and/or imino groups in amino and/or imino group - containing compounds for the temporary protection of said amino and/or imino groups. Additionally, processes for preparing said esters are also disclosed.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: March 29, 1977
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventor: Masumi Itoh
  • Patent number: 4014924
    Abstract: Allophanimidates and carbamates of the formulas ##STR1## where R.sub.1 is hydrogen or alkyl;R.sub.2 is alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, benzyl or phenyl optionally substituted;R.sub.3 is SR.sub.4 or OR.sub.4 ;R.sub.4 is alkyl, cycloalkyl, alkenyl, alkynyl, phenyl, or benzyl;R.sub.5 is alkyl, alkenyl, cycloalkyl, benzyl or phenyl optionally substituted; andR.sub.6 is hydrogen or alkylX.sub.1, x.sub.2 and X.sub.3 are oxygen or sulfur, are useful as herbicides.Exemplary of the compounds is methyl 4-tert-butyl-N-methoxycarbonyl-1-thioallophanimidate.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: March 29, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Julius J. Fuchs, Kang Lin
  • Patent number: 4014933
    Abstract: An improved method of preparing amines by reaction of alcohols with ammonia or primary or secondary amines at elevated temperature and superatmospheric pressure in the presence of hydrogen and a hydrogenation catalyst containing cobalt, nickel and copper, the improvement comprising using a catalyst which contains (calculated on the metal content of the catalyst) from 70 to 95% by weight of a mixture of cobalt and nickel and from 5 to 30% by weight of copper, the ratio by weight of cobalt to nickel being from 4:1 to 1:4. The amines prepared in this way are suitable for the production of emulsifying agents, plant protection agents and vulcanization accelerators.
    Type: Grant
    Filed: August 27, 1973
    Date of Patent: March 29, 1977
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenther Boettger, Hubert Corr, Herwig Hoffmann, Herbert Toussaint, Siegfried Winderl
  • Patent number: 4014880
    Abstract: The reaction of 2-oxazolines with 1,2- or 1,3-alkylenediamines to form 2-imidazolines or 1,4,5,6-tetrahydropyrimidines is catalyzed by Lewis acids.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: March 29, 1977
    Assignee: The Dow Chemical Company
    Inventors: William Dowd, Peter W. Owen