Patents Examined by D. R. Phillips
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Patent number: 4031126Abstract: 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: GrantFiled: February 12, 1976Date of Patent: June 21, 1977Assignee: PPG Industries, Inc.Inventor: James A. Manner
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Patent number: 4022813Abstract: 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: GrantFiled: December 10, 1975Date of Patent: May 10, 1977Assignee: ANIC, S.p.A.Inventors: Carlo Neri, Gioacchino Cipriani
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Patent number: 4022814Abstract: 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: GrantFiled: April 22, 1976Date of Patent: May 10, 1977Assignee: Lafayette Pharmacal, Inc.Inventor: Barry N. Newton
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Patent number: 4019991Abstract: 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: GrantFiled: February 27, 1975Date of Patent: April 26, 1977Assignee: Edwin Cooper & Company LimitedInventors: Gerald John Joseph Jayne, Herbert Frank Askew
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Patent number: 4020093Abstract: 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: GrantFiled: April 20, 1976Date of Patent: April 26, 1977Assignee: ANIC S.p.A.Inventors: Paolo Koch, Bartolomeo Anfossi
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Patent number: 4018771Abstract: 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: GrantFiled: August 23, 1976Date of Patent: April 19, 1977Assignee: Ciba-Geigy CorporationInventors: John T. Gupton, III, Alex M. Jelenevsky, Teruko U. Miyazaki, Harris E. Petree
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Patent number: 4017634Abstract: 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: GrantFiled: January 12, 1976Date of Patent: April 12, 1977Assignee: Stauffer Chemical CompanyInventors: Hsiao-Ling Lam, Ferenc M. Pallos
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Patent number: 4017530Abstract: 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: GrantFiled: April 3, 1975Date of Patent: April 12, 1977Inventor: Jean Blum
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Patent number: 4017475Abstract: Aminoalkylated hydroxyphenylated lignosulfonate is described. The composition is prepared by reacting a hydroxyphenylated lignosulfonate with a nitrogen compound and an aldehyde.Type: GrantFiled: September 22, 1975Date of Patent: April 12, 1977Assignee: Georgia-Pacific CorporationInventor: Charles H. Ludwig
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Patent number: 4017546Abstract: 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: GrantFiled: October 28, 1975Date of Patent: April 12, 1977Assignee: Eli Lilly and CompanyInventors: Tulio Suarez, C. David Jones
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Patent number: 4017474Abstract: 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: GrantFiled: August 15, 1975Date of Patent: April 12, 1977Assignee: Research CorporationInventors: Wolfgang Gerhard Glasser, Oscar Hsien-Hsiang Hsu
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Patent number: 4016190Abstract: 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: GrantFiled: February 26, 1976Date of Patent: April 5, 1977Assignee: Bayer AktiengesellschaftInventors: August Bockmann, Claus Wulff, Hugo Vernaleken, Wolfgang Alewelt, Uwe Hucks
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Patent number: 4016093Abstract: 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: GrantFiled: March 19, 1976Date of Patent: April 5, 1977Assignee: Mobil Oil CorporationInventor: Emil Koft, Jr.
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Patent number: 4016275Abstract: 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: GrantFiled: July 3, 1975Date of Patent: April 5, 1977Assignee: Chevron Research CompanyInventor: Joseph E. Moore
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Patent number: 4016210Abstract: 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: GrantFiled: October 23, 1975Date of Patent: April 5, 1977Assignee: Imperial Chemical Industries LimitedInventors: Patrick James Horner, John Peter Brown
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Patent number: 4016187Abstract: 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: GrantFiled: June 30, 1975Date of Patent: April 5, 1977Assignee: Akzona IncorporatedInventor: Hendrik Harm Jannes Oosterwijk
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Patent number: 4014924Abstract: 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: GrantFiled: February 27, 1976Date of Patent: March 29, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventors: Julius J. Fuchs, Kang Lin
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Patent number: 4014880Abstract: 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: GrantFiled: February 9, 1976Date of Patent: March 29, 1977Assignee: The Dow Chemical CompanyInventors: William Dowd, Peter W. Owen
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Patent number: 4014915Abstract: 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: GrantFiled: August 26, 1975Date of Patent: March 29, 1977Assignee: Fujisawa Pharmaceutical Co., Ltd.Inventor: Masumi Itoh
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Patent number: 4014933Abstract: 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: GrantFiled: August 27, 1973Date of Patent: March 29, 1977Assignee: BASF AktiengesellschaftInventors: Guenther Boettger, Hubert Corr, Herwig Hoffmann, Herbert Toussaint, Siegfried Winderl