Patents Examined by Margaret Argo
  • Patent number: 5103049
    Abstract: Process for the synthesis of perfluoroalkenyl-sulfonyl fluorides of formula:R.sub.f --CF.dbd.CF--SO.sub.2 Fwherein:R.sub.f is F or a perfluoroalkyl of from 1 to 9 carbon atoms, consisting in bringing a perfluoroalkyl-(sulfonyl fluoride) monofluoroacetyl-fluride of formula R.sub.f --CF.sub.2 --CF(COF)SO.sub.2 F into contact with a reactant constituted by a carbonate of a metal belonging to Groups IA, IIA and IIB of the Periodical Table of the Elements at a temperature comprised within the range of from 150.degree. to 400.degree. C., and then recovering the desired product.The process is run in continuous.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: April 7, 1992
    Assignee: Ausimont S.r.l.
    Inventors: Walter Navarrini, Darryl D. DesMarteau
  • Patent number: 5103051
    Abstract: A continuous process for preparing perfluoroalkenyl sulfonyl fluorides (I)R.sub.f --CF.dbd.CF--SO.sub.2 F (I)wherein R.sub.f is selected from the group consisting of F and a perfluoroalkyl of from 1 to 9 carbon atoms is disclosed, in which a perfluoroalkyl (sulfonyl fluoride) monofluoroacetyl fluoride of formulaR.sub.f --CF.sub.2 --CF(COF)SO.sub.2 F (II)is used as the starting product.The starting product is contacted with a reactant selected from the group consisting of the oxides of an element of the Groups IA, IIA, IIB, IIIA and IVA of the Periodic Table of the Elements, and of their mixtures, at a temperature comprised within the range of from 150.degree. to 450.degree. C., and the compound (I) is recovered from the reaction effluent.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: April 7, 1992
    Assignee: Ausimont S.r.l.
    Inventors: Walter Navarrini, Silvana Modena
  • Patent number: 5101076
    Abstract: Compounds of the present invention are represented by the formula, ##STR1## wherein X represents a lower alkyl, lower alkoxy, lower haloalkyl or lower haloalkoxy group or a halogen atom, and R.sup.1 and R.sup.2, which may be the same or different, represent a hydrogen atom or a methyl group. They are useful intermediates for preparing herbicidal compounds.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: March 31, 1992
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Mitsunori Hiratsuka, Masao Shiroshita, Susumu Ohtsuka, Kenji Arai, Naonori Hirata
  • Patent number: 5097076
    Abstract: Addition products of phenylalkyl glycidyl ethers to polyalkylene glycol ethers of the formulaR-O Alkylene--O.sub.m H (1)their acid esters and salts thereof, wherein R is an aliphatic radical having at least 4 carbon atoms, "Alkylene" is an alkylene radical of 2 or 3 carbon atoms, and m is a number from 2 to 100.These products represent a novel class of non-ionic or anionic surfactants that are used as textile finishing agents, especially as emulsifiers, wetting agents, foaminhibitors or dyeing auxiliaries.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: March 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Reinehr, Rosemarie Topfl
  • Patent number: 5097068
    Abstract: Novel trisubstituted benzoic acid intermediates which are useful in the preparation of certain herbicidal 2-(2,3,4-trisubstituted benzoyl)-1,3-cyclohexandediones. The intermediate benzoic acids of this invention have the following structural formula ##STR1## wherein R.sup.6 is chlorine, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio or hydroxy; n is the integer 0 or 2; and R.sup.7 is C.sub.1 -C.sub.4 alkyl.
    Type: Grant
    Filed: December 7, 1989
    Date of Patent: March 17, 1992
    Assignee: ICI Americas, Inc.
    Inventor: David L. Lee
  • Patent number: 5095153
    Abstract: Diethers of general formula: ##STR1## where R, R.sup.I, R.sup.II, R.sup.III, R.sup.IV and R.sup.V are the same or different and are H, C.sub.1-18 linear or branched alkyl, C.sub.5-18 cycloalkyl, C.sub.6.about. aryl, C.sub.7-18 alkylaryl or C.sub.7-18 arylalkyl radicals, provided that when R is alkyl, R.sup.I is other than H or alkyl and when R.sup.I is alkyl, R is other than H or alkyl; R.sup.VI and R.sup.VIII are the same or different and are C.sub.1-18 linear or branched alkyl, C.sub.5-18 cycloalkyl, C.sub.6-18 aryl, or C.sub.7-18 arylalkyl radicals; and two or more of R to R.sup.V may be bonded to form a cyclic structure having 5 to 18 carbon atoms.The diethers are particularly useful in the preparation of Ziegler-Natta catalysts.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: March 10, 1992
    Assignee: HIMONT Incorporated
    Inventors: Giovanni Agnes, Giampietro Borsotti, Giuliana Schimperna, Elisabetta Barbassa
  • Patent number: 5095150
    Abstract: A formylated alkylbenzenesulfonyl halide compound represented by the following general formula (I): ##STR1## wherein R.sub.1 is an alkyl group having 1 to 5 carbon atoms; R.sub.2 and R.sub.3 are each a member selected from the group consisting of a hydrogen atom and alkyl groups having 1 to 5 carbon atoms; X is a halogen atom; the sulfonyl halide group is present at the ortho or para position while the formyl group at the para or ortho position relative to the group R.sub.1 when R.sub.2 and R.sub.3 are both a hydrogen atom, while the sulfonyl halide group and the formyl group are present at the para positions relative to the groups R.sub.1 and R.sub.2, respectively, when R.sub.2 is an alkyl group and R.sub.3 is a hydrogen atom, or the sulfonylhalide group and the formyl group are present at the para positions relative to the groups R.sub.1 and R.sub.2, respectively, when R.sub.2 and R.sub.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: March 10, 1992
    Assignee: Agency of Industrial Science & Technology
    Inventors: Yoshie Souma, Jun Iyoda, Hirosi Sano
  • Patent number: 5093523
    Abstract: A perfluorosuccinylfluoride is prepared by the reaction of a gaseous mixture of 1,4-dibromoperfluorobutane with SO.sub.3 in oleum with at least 65% of free SO.sub.3 containing a catalyst comprising, besides mono- and bi-valent mercury sulphates, B.sub.2 O.sub.3 in quantities of from 0.3% to 8% by weight with respect to the free SO.sub.3 present in the "oleum" during course of the reaction.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: March 3, 1992
    Assignee: Ausimont S.r.l.
    Inventor: Claudio Gervasutti
  • Patent number: 5091588
    Abstract: Fluorinated styrene derivatives of the general formula: ##STR1## wherein n is an integer of 1 to 3 are novel. They form homopolymers and copolymers having water and oil repellency, chemical resistance and flexibility. They are prepared by reacting a halomethylstyrene with an alcohol having a perfluoropolyether group in the presence of a base.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: February 25, 1992
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Yasushi Yamamoto
  • Patent number: 5091416
    Abstract: Insecticidal and acaricidal compounds of formula: ##STR1## and stereoisomers thereof, where R.sup.1 represents C.sub.1-4 alkyl, R.sup.2 represents H, CN, CH.sub.3, or CF.sub.3 ; Q represents CH or N; and Z represents one or more substituents selected from fluoro, benzyl, phenoxy and halophenoxy.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: February 25, 1992
    Assignee: Imperial Chemical Industries PLC
    Inventor: Michael J. Bushell
  • Patent number: 5087747
    Abstract: Trifluoromethanesulphenyl chloride is prepared by reacting bis-(trifluoromethyl)disulfane in the liquid phase with chlorine in the presence of a strong acid.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: February 11, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietmar Bielefeldt, Rudolf Braden, Albrecht Marhold
  • Patent number: 5081317
    Abstract: 1-Bromo-3-chloro-1,2-diaryl-2-propanols of the general formula I ##STR1## where n and m are each 1, 2 or 3, and R.sup.1 and R.sup.2 are each hydrogen, haloalkyl, alkoxy, haloalkoxy, t-butyl or an aromatic radical which may be substituted, are prepared and converted into azolylmethyloxiranes.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: January 14, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reiner Kober, Heinz Isak, Rainer Seele
  • Patent number: 5081315
    Abstract: Compounds of the formula ##STR1## in which A represents the radicals ##STR2## in which R.sup.1 and R.sup.2 are different from one another and denote hydrogen, --NO.sub.2 or --NH.sub.2, R.sup.3 is hydrogen or halogen, X represents --NO.sub.2 or --NH.sub.2, with the proviso that R.sup.1 is hydrogen, if R.sup.2 is --NO.sub.2 or --NH.sub.2 and R.sup.2 is hydrogen, if R.sup.1 is --NO.sub.2 or --NH.sub.2.The compounds are prepared from 4,4'-bis[2-(4-hydroxyphenyl)hexafluoroisopropyl]diphenyl ether by nitration or reaction with nitrobenzenes followed by reduction of the nitro groups. They are used for the preparation of high-temperature-resistant polycondensates.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: January 14, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jurgen Lau, Gunter Siegemund
  • Patent number: 5077437
    Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, flame-retarded compositions of matter containing them and froth flotation processes therewith, are disclosed.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 31, 1991
    Assignee: American Cyanamid
    Inventors: Allan J. Robertson, James B. Gallivan
  • Patent number: 5077432
    Abstract: Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein R.sub.3 and R.sub.4 are the same or different and each is hydrogen or alkyl or R.sub.3 and R.sub.4 taken together with the nitrogen atoms to which they are attached form a 1,2-diazacyclobutane, 1,2-diazacyclopentane, 1,2-diazacyclohexane, or 1,2-diazacycloheptane ring and Y, and Y.sub.2 are either hydrogen or hydroxy but are not the same; are useful chemical intermediates for the preparation of .beta.-lactam antibiotics.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: December 31, 1991
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Joseph E. Sundeen, Robert Zahler, Stefan Jendrzejewski
  • Patent number: 5068461
    Abstract: The invention provides insecticidally active compounds of formula I: ##STR1## wherein A is selected from oxygen and a group of formula S(O).sub.n, where n represents 0, 1 or 2; W represents one or two substituents selected from halo, alkyl, alkoxy, alkoxyalkyl, haloalkyl and haloalkoxy, or W represents a bidentate group linking adjacent carbon atoms, selected from alkylene and alkylenedioxy; Y represents a substituted aryl group where each substituent is selected from halo, alkyl, aryl, aralkyl, aryloxy and arylamino; Z represents a fluoroalkyl group of up to two carbon atoms; and either X' represents hydrogen and X is selected from hydrogen, halo, hydroxy, alkoxy and acyloxy, or X and X' together represent a second bond between the adjacent carbon atoms.The invention also provides processes and intermediates useful for the preparation of the compounds of formula I, insecticidal compositions comprising the compounds of formula I, and methods of combating and controlling pests therewith.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: November 26, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: Michael J. Bushell, Robin A. E. Carr
  • Patent number: 5068459
    Abstract: A process for producing m-phenoxybenzyl alcohol by reacting chlorobenzene with m-hydroxybenzyl alcohol in the presence of a copper catalyst and a base, the process being characterized by using an alkylene glycol as a reaction solvent.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: November 26, 1991
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Ryu Oi, Shinji Takenaka, Chitoshi Shimakawa
  • Patent number: 5068457
    Abstract: A method for making hydroxy-terminated arylene ethers is provided by condensing an aromatic diol, such as hydroquinone with 4-fluoroacetophenone followed by a Baeyer-Villiger oxidation, and hydrolysis of the resulting diester.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: November 26, 1991
    Assignee: General Electric Company
    Inventors: Gary W. Yeager, David N. Schissel
  • Patent number: 5068462
    Abstract: A fluorine-substituted compound containing an ether bond and an intermediate thereof are described, which are represented by: ##STR1## wherein R represents a straight-chain alkyl group having 1 to 8 carbon atoms; n represents an integer of 2 to 7; m represents 1 or 2, X represents a hydrogen atom or a fluorine atom and ##STR2## represents a trans-(equatorial-equatorial)cyclohexane ring. A compound represented by formula (II): ##STR3## wherein R represents a straight-chain alkyl group having 1 to 8 carbon atoms; n represents an integer of 2 to 7; m represents 1 or 2, ##STR4## represents a trans-(equatorial-equatorial)cyclohexane ring.
    Type: Grant
    Filed: July 26, 1990
    Date of Patent: November 26, 1991
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Makoto Sasaki, Haruyoshi Takatsu, Kiyofumi Takeuchi
  • Patent number: 5068398
    Abstract: 6-Aminocaproic esters are prepared by reacting alkyl 5-formylvalerates with excess ammonia and hydrogen in the presence of ruthenium catalysts at elevated temperature under superatmospheric pressure in liquid ammonia as reaction medium.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: November 26, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz Merger, Rolf Fischer, Wolfgang Harder, Claus-Ulrich Priester, Uwe Vagt