Halogen Containing Patents (Class 568/637)
  • Patent number: 4272429
    Abstract: Oligomers of aromatic diols and brominated diphenyl compounds are described. They are useful in resin blends with thermoplastic polymers to impart flame-retardancy thereto without substantial resin degradation at molding temperatures.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: June 9, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard H. Jones
  • Patent number: 4268693
    Abstract: 3-Hydroxydiphenyl ethers of the formula ##STR1## wherein R.sub.1 represents hydrogen, fluorine or chlorine, each of R.sub.2 and R.sub.3 independently represents hydrogen or chlorine, and each of R.sub.4, R.sub.5 and R.sub.6 independently represents hydrogen, fluorine, chlorine, bromine or alkyl of 1 to 4 carbon atoms, with the proviso that each phenyl nucleus contains at least one halogen atom, but the total number of halogen atoms in the molecule does not exceed 4, processes for their production and a method of using them for combating micro-organisms.
    Type: Grant
    Filed: November 14, 1978
    Date of Patent: May 19, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Rene Muntwyler, Kurt Burdeska
  • Patent number: 4264769
    Abstract: A novel process for the preparation of a hydroxyphenyl ether compound of the formula ##STR1## in which R represents a radical of the formula ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from hydrogen, halogen, haloalkyl, nitro or cyano; orR represents a heterocyclic radical which optionally carries one or more substituents selected from halogen, halogenoalkyl, alkoxy, nitro and cyano and which can contain an optionally substituted fused benzene ring,which process comprises reacting a halogen compound of the formulaR--Hal (II)in whichR is defined as above, andHal is fluorine, chlorine or bromine,with a dihydroxybenzene of the formula ##STR3## in the presence of calcium hydroxide and in the presence of a polar diluent, at a temperature of from 20.degree. C. to 200.degree. C.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: April 28, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventor: Heinz Forster
  • Patent number: 4261920
    Abstract: A 3-phenoxy-fluorobenzyl alcohol of the formula ##STR1## in which R.sup.2 is hydrogen, cyano or ethynyl.The compounds can be esterified with pyrethroid-type carboxylic acids to give highly active insecticides.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: April 14, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Wolfgang Behrenz, Wilhelm Stendel
  • Patent number: 4258175
    Abstract: There is provided a process for preparing a compound of the formula ##STR1## wherein X.sup.1, X.sup.2, X.sup.3, and X.sup.4 are independently selected from the group consisting of fluorine, chlorine, bromine and iodine; n is an integer of from 1 to about 100; a, b, c, and d are each integers of from about 0 to about 4; Z.sup.1 and Z.sup.2 are independently selected from the group consisting of halogen and alkyl of from about 1 to about 15 carbon atoms; R.sup.1 and R.sup.2 are independently selected from the group consisting of alkylene containing from about 1 to about 12 carbon atoms, alkylenyl containing from about 2 to about 12 carbon atoms, cycloalkylene of the formula ##STR2## wherein R.sup.3, R.sup.4 and R.sup.5 are independently selected from the group consisting of alkylene of from about 1 to about 5 carbon atoms, and cycloalkylenyl of the formula ##STR3## and A is selected from the group consisting of R.sup.3 CR.sup.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: March 24, 1981
    Assignee: Velsicol Chemical Corporation
    Inventor: Sun-Mao Chen
  • Patent number: 4246188
    Abstract: Aryl sulfonic acid esters of the formula ##STR1## wherein R.sup.1 represents hydrogen, alkyl groups of 1 to 8 carbon atoms, bromine or chlorine, R.sup.2 represents R.sup.1 or the group ##STR2## Hal represents bromine or chlorine, x the numbers 2 to 4, n the numbers 3 to 5, y the numbers 4-x; m=5-n, R.sup.3 represents bromine, chlorine or the group ##STR3## and Z represents --O--, --S--, ##STR4## alkylene with 1 to 4 carbon atoms, or alkylidene; a process for their product and their use as a flame retardant, especially for polyolefins.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: January 20, 1981
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Egon N. Peterson, Hermann Richtzenhain
  • Patent number: 4242357
    Abstract: 3-Phenoxybenzyl alcohols and carboxylic acid esters thereof for combating pests of the formula ##STR1## in which R and R.sup.1 are different and each represent hydrogen, fluorine or bromine,R.sup.2 represents cyano or ethynyl andR.sup.3 represents the ##STR2## or the ##STR3## wherein the phenyl ring can optionally carry one or more substituents selected independently from halogen, alkyl, alkylthio and alkoxy with in each case 1 to 4 carbon atoms, nitro and methylenedioxy, andR.sup.4 and R.sup.5 are identical and each represent chlorine, bromine or methyl, andR.sup.2 represents hydrogen in case thatR.sup.3 represents the ##STR4## wherein R.sup.4 and R.sup.5 are identical and each represent chlorine or bromine andR.sup.3 represents the ##STR5## wherein the phenyl ring can carry the above mentioned substituents which possess insecticidal and acaricidal properties. The benzyl alcohols from which the esters are made are also new.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: December 30, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer A. Fuchs, Ingeborg Hammann, Wolfgang Behrenz, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4238504
    Abstract: Cyclopropanecarboxylic acid-phenoxy-.alpha.-vinyl-benzyl esters of the formula ##STR1## in which Y is chlorine or bromine, and R.sub.1 is --CH.dbd.CH.sub.2 or ##STR2## processes for producing them, and their use in combating pests.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: December 9, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Jozef Drabek, Peter Ackermann, Saleem Farooq, Laurenz Gsell, Odd Kristiansen
  • Patent number: 4231787
    Abstract: Phenoxypropane compounds represented by the general formula (I): ##STR1## wherein X is a 4-halophenoxy group, a 2,4-dihalophenoxy group, a 4-trifluoromethylphenoxy group, a 2-halo-4-trifluoromethylphenoxy group, a 5-halopyridyl-2-oxy group or a 3,5-dihalopyridyl-2-oxy group; and Y is a halogen atom, a hydroxy group, a (C.sub.1 -C.sub.4)-alkoxy group in which the alkyl moiety thereof may be substituted with a hydroxy group(s), a (C.sub.1 -C.sub.4)alkylcarbonyloxy group or a phenylcarbonyloxy group in which the phenyl moiety thereof may be substituted with a halogen atoms(s), useful as a herbicide; a herbicidal composition containing the compound; and methods of controlling weeds using such materials.
    Type: Grant
    Filed: June 21, 1978
    Date of Patent: November 4, 1980
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Ryuzo Nishiyama, Ryohei Takahashi, Kanichi Fujikawa, Rikuo Nasu, Nobuyuki Sakashita
  • Patent number: 4218469
    Abstract: 3-Phenoxy-fluoro-benzyl carboxylic acid esters of the formula ##STR1## in which R.sup.2 is hydrogen, cyano or ethynyl,R.sup.3 is ##STR2## R.sup.4 and R.sup.5 represent chlorine, bromine or methyl, and R.sup.6 is phenyl or phenyl substituted with halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, nitro or methylenedioxy,which possess arthropodicidal properties. The alcohols are also new.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: August 19, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Wolfgang Behrenz, Wilhelm Stendel
  • Patent number: 4214086
    Abstract: A process for producing hydroxydiaryl ethers of the formula ##STR1## wherein R respesents an alkyl group having 1 to 4 carbon atoms or chlorine, n represents 0, 1, 2, 3 or 4, and X represents a phenyl group of the formula II ##STR2## or a 2-pyridinyl group or a 4-pyridinyl group of the formulae ##STR3## wherein R.sub.1, R.sub.2 and R.sub.3 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms, an alkyl group which has 1 to 4 carbon atoms and which is mono- or disubstituted by halogen, phenyl, halogen, carboxyl, alkoxycarbonyl having 1 to 4 carbon atoms in the alkyl group, trifluoromethyl, nitro, cyano or benzoyl, R.sub.4 and R.sub.5 each represent hydrogen, an alkyl group having 1 to 4 carbon atoms or phenyl, and R.sub.6 has all the meanings given, with the exception of halogen, for R.sub.1, R.sub.2 and R.sub.3 is disclosed.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: July 22, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Hansjakob Fah
  • Patent number: 4210765
    Abstract: An improved process for obtaining halogenated diphenols which can be pure dihalodiphenols or predetermined, statistical mixtures comprising unreacted diphenol, monohalodiphenols and dihalodiphenols.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: July 1, 1980
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Patent number: 4199596
    Abstract: Fluorine substituted phenoxybenzylcarbonyl derivatives of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano or ethynyl andR.sup.2 represents the radical ##STR2## wherein R.sup.3 and R.sup.4, which are identical, each represent chlorine, bromine or methyl, orR.sup.2 represents the radical ##STR3## wherein R.sup.5 represents a phenyl ring which optionally carries one or more substituents each selected independently from halogen, alkyl, alkylthio and alkoxy each with 1-4 carbon atoms, nitro and methylenedioxy,which possess arthropodicidal properties. The benzyl alcohol components of these esters are also new.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: April 22, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rainer Fuchs, Ingeborg Hammann, Wolfgang Behrenz, Bernhard Homeyer, Wilhelm Stendel
  • Patent number: 4192669
    Abstract: Ethers, such as 2-[[4-[4-(trifluoromethoxy)phenoxy]phenoxy]]propanoic acid, methyl ester, useful for control of weeds.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: March 11, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John B. Adams, Jr., Joel B. Wommack, Jr.
  • Patent number: 4189610
    Abstract: Dehydrohalogenation-rearrangement of 1,1-bis(4-oxy-substituted aryl)-2-haloethanes to yield 4,4'-dioxysubstituted stilbenes is effected by heating an acidic reaction medium comprising the 1,1-bis(4-oxy-substituted aryl)-2-haloethane dissolved in a solution of an aliphatic carboxylic acid and a carboxylic acid salt. The process is particularly directed to the preparation of 4,4'-dihydroxystilbene from 1,1-bis(4-hydroxyphenyl)-2-chloroethane.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: February 19, 1980
    Assignee: Monsanto Company
    Inventor: James P. Coleman
  • Patent number: 4182911
    Abstract: Novel optically-active (S)- 1-aryloxy-2,3-epoxy-propane derivatives, a process for their manufacture, various intermediates used in the preparation thereof, and a process for using them for the manufacture of optically-active (S)-1-aryloxy-3-amino-2-propanol derivatives useful as .beta.-adrenergic blocking agents.
    Type: Grant
    Filed: December 20, 1977
    Date of Patent: January 8, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventor: Howard Tucker
  • Patent number: 4175138
    Abstract: Hypolipidemic agents of the formula: ##STR1## wherein X is C.dbd.O or CHOH,R.degree. is branched lower alkyl,R is hydrogen, alkyl, or halo,n is 1 or 2, andR' and R" are hydrogen, halo, alkyl or alkoxy, e.g., 4-phenoxy pivalophenone.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: November 20, 1979
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4175137
    Abstract: The invention relates to novel etherified cycloalkanols of the formula ##STR1## wherein X.sub.1 represents oxygen, sulphur or methylene, X.sub.2 represents oxygen or sulphur, A represents an unsubstituted or substituted phenyl radical and n is an integer from 1 to 10 inclusive, and processes for the production thereof.These compounds, especially 2-(4-phenoxyphenoxy)-cyclo-pentan-1-ol, effect a lowering of the lipid content in the blood serum. They are also intermediates for the production of insecticidal cyclopropanecarboxylic acid esters.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: November 20, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Saleem Farooq, Friedrich Karrer, Georges Haas
  • Patent number: 4172959
    Abstract: Hydroquinone mono-phenyl ethers, and their alkali metal salts of the formula ##STR1## in which one of the radicals R.sub.1 and R.sub.2 denotes trifluoromethyl and the other denotes hydrogen or halogen and R.sub.3 represents hydrogen or an alkali metal cation or ammonium cation are prepared by reacting hydroquinone bis-phenyl ethers (bisphenoxybenzenes) of the formula ##STR2## with hydroquinone derivatives of the formula ##STR3## in which Cat denotes an alkali metal cation or ammonium cation and R.sub.4 denotes an alkali metal cation or ammonium cation or a (C.sub.1 -C.sub.4)-alkyl group, in a polar aprotic solvent at temperatures from 120.degree. to 280.degree. C., and optionally, an alkyl group present in the R.sub.4 -position is split off by treatment with an acid.
    Type: Grant
    Filed: December 21, 1977
    Date of Patent: October 30, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Klaus H. Kaiser
  • Patent number: 4168218
    Abstract: Benzopinacol compounds can be prepared by an improved process comprising irradiating a diarylketone with UV radiation in a non-polar hydrocarbon solvent mixed with an alcohol. The volume ratio of the non-polar hydrocarbon solvent to alcohol is between 3:1 and 8:1. The benzopinacols are useful, for example, in imaging materials, such as with certain dyes that are reactive with the ketyl radicals that can be released from the benzopinacols upon heating.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: September 18, 1979
    Assignee: Eastman Kodak Company
    Inventor: Jonas Dedinas
  • Patent number: 4162366
    Abstract: New insecticides, organic esters wherein the alcohol moiety is .alpha.-trifluoromethyl-3-phenoxybenzyl alcohol and the acid moiety is a pyrethroid carboxylic acid, are described and shown to control a broad spectrum of insects, including acarids.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: July 24, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Patent number: 4156011
    Abstract: The sulphur- and oxygen-containing diaryl compounds of the formula: ##STR1## in which A and B, which may be the same or different, represent O, S, SO or SO.sub.2,Alk is a C.sub.1 -C.sub.4 hydrocarbon radical with a straight or branched chain, R represents COOH, an esterified COOH group, a carboxylic amide group, OH, O-SO.sub.2 CH.sub.3, NH.sub.2, NHR.sub.1, NR.sub.1 R.sub.2, NHZOH, NHZNR.sub.1 R.sub.2, C(.dbd.NH)NH.sub.2, C(.dbd.NH)NHOH or 2-.DELTA..sup.2 -imidazolinyl, Z is a C.sub.2 -C.sub.4 hydrocarbon radical with a straight or branched chain, and R.sub.1 and R.sub.2 each represent a C.sub.1 -C.sub.
    Type: Grant
    Filed: April 5, 1977
    Date of Patent: May 22, 1979
    Assignee: Societe Anonyme dite: Laboratoire L. Lafon
    Inventors: Victor Lafon, Louis Lafon
  • Patent number: 4154767
    Abstract: Reaction of the diphenyl ether with formaldehyde, an alcohol, water and acid catalyst produces a mixture of condensation products that can be cured to useful, thermally stable resins. These condensation products are also useful as functional fluids in capacitors and other electrical devices.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: May 15, 1979
    Assignee: The Dow Chemical Company
    Inventors: Raymond A. Plepys, Edgar F. Hoy
  • Patent number: 4153731
    Abstract: Compounds of the formula ##STR1## wherein N REPRESENTS THE NUMBERS 0 OR 1,Z represents oxygen, ##STR2## or sulphur R.sub.1 represents the groups ##STR3## wherein R.sub.5 represents hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, ethynyl, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.5 -alkoxy, C.sub.3 -C.sub.5 -alkenyloxy, C.sub.3 -C.sub.5 -haloalkenyloxy, C.sub.3 -C.sub.5 -alkynyloxy, nitro, cyano, C.sub.2 -C.sub.5 -alkoxycarbonyl, C.sub.3 -C.sub.5 -alkenyloxycarbonyl, C.sub.3 -C.sub.5 -alkynyloxycarbonyl, C.sub.1 -C.sub.3 -alkanoyl, C.sub.1 -C.sub.4 -alkylcarbamoyl, (di-C.sub.1 -C.sub.4 -alkyl)carbamoyl,R.sub.6 represents hydrogen, halogen, methyl, ethyl, isopropyl or methoxy, andR.sub.8 represents hydrogen or n-propyl,R.sub.2 represents hydrogen, methyl or ethyl,R.sub.3 and R.sub.4 each represent hydrogen, methyl, ethyl, methoxy, ethoxy, nitro or halogen, andR.sub.7 represents hydrogen or C.sub.1 -C.sub.2 -alkanoyl,And their use for combating insects and members of the order acarina are disclosed.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: May 8, 1979
    Assignee: Ciba-Geigy Corporation
    Inventor: Friedrich Karrer
  • Patent number: 4153719
    Abstract: Beta-diketones substituted by an aryl-aliphatic group in which the aliphatic chain is interrupted by a cyclic group, and useful as anti-viral agents, are prepared by interacting the appropriate aryl-aliphatic halide with an alkali metal salt of a beta-diketone.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: May 8, 1979
    Assignee: Sterling Drug Inc.
    Inventor: Guy D. Diana
  • Patent number: 4152455
    Abstract: New insecticides, organic esters wherein the alcohol moiety is .alpha.-trifluoromethyl-3-phenoxybenzyl alcohol and the acid moiety is a pyrethroid carboxylic acid, are described and shown to control a broad spectrum of insects, including acarids.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: May 1, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Patent number: 4151302
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are F, Cl or Br;Q is --CH(CH.sub.3)--CH.sub.2 --, --C(OH)(CH.sub.3)--CH.sub.2 -- or --C(CH.sub.3).dbd.CH--;Y is COOH, COOR.sup.3, CH.sub.2 OH or CH.sub.2 OAc;N is 0 or 1;R.sup.3 is alkyl or aryl of up to 8 carbon atoms or C.sub.6 H.sub.4 NHCOCH.sub.3 ; andAc is acyl of 1-8 carbon atoms;And physiologically acceptable salts thereof, are anti-inflammatory agents, which can be made from compounds of the formula Z--X, wherein Z is ##STR2## X can be converted to --Q--Y.
    Type: Grant
    Filed: August 19, 1977
    Date of Patent: April 24, 1979
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Joachim Gante, Hans-Adolf Kurmeier, Dieter Orth, Erich Schacht, Albrecht Wild
  • Patent number: 4151294
    Abstract: Alkynols of the formula, ##STR1## wherein X is F, Cl or Br; n is 0 or 1; m is 0 or 1 and R (if m is 0) is hydroxyalkyl of 1-6 carbon atoms or (if m is 1) alkyl, straight-chain hydroxyalkyl or straight-chain tetrahydropyran-2-yloxyalkyl of 2-6 carbon atoms in the alkyl, have anti-inflammatory activity.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: April 24, 1979
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Hans-Adolf Kurmeier, Erich Schacht, Joachim Gante, Dieter Orth, Zdenek Simane, Albrecht Wild
  • Patent number: 4149015
    Abstract: Benzopinacols represented by the formula: ##STR1## wherein R.sup.1 is hydrogen, alkyl or aryl;R.sup.2 and R.sup.6 independently are selected from the group consisting of hydrogen, halogen or trifluoromethyl;R.sup.3 and R.sup.5 independently, are selected from the group consisting of hydrogen, halogen and alkyl or, when taken together with R.sup.4, represent a tetramethylene group; andR.sup.4 is selected from the group consisting of hydrogen, halogen, alkyl, alkoxy and phenoxy;With the proviso that when both of the ortho positions of the phenyl groups to which R.sup.2 and R.sup.6 are attached are substituted, the substituent is fluorine. These benzopinacol compounds can be prepared by an improved process comprising irradiating a diarylketone with UV radiation in a non-polar hydrocarbon solvent mixed with an alcohol. The volume ratio of the non-polar hydrocarbon solvent to alcohol is between 3:1 and 8:1.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: April 10, 1979
    Assignee: Eastman Kodak Company
    Inventor: Jonas Dedinas
  • Patent number: 4141921
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 represents hydrogen, methyl or iodine,R.sub.2 represents hydrogen, methyl or ethylR.sub.3 represents hydrogen or methylR.sub.4 represents hydrogen, C.sub.1 -C.sub.3 alkyl; C.sub.1 -C.sub.3 alkoxy; halogen or nitro, andZ represents oxygen, or the group --CH.sub.2 O--, whereby the CH.sub.2 -group is bound to the phenyl nucleus,And their use for the control of insects are disclosed.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: February 27, 1979
    Assignee: Ciba-Geigy Corporation
    Inventor: Friedrich Karrer
  • Patent number: 4136200
    Abstract: Phenylbutanol derivatives of the formula Z-C(CH.sub.3) (OH)-CH.sub.2 -Y wherein Z is 4-biphenyl or 4-phenoxyphenyl wherein the phenoxy group is unsubstituted or substituted by F, Cl or Br and Y is COOR.sup.2 or CH.sub.2 OR.sup.3 wherein R.sup.2 is H or alkyl of 1 to 6 carbon atoms and R.sup.3 is H or alkanoyl of 1 to 6 carbon atoms, and their physiologically acceptable salts, possess anti-inflammatory activity and are produced by (a) treating with a solvolyzing agent a compound of the formula Z-C(CH.sub.3) (OH)-CH.sub.2 -W or Z-CX(CH.sub.3)-CH.sub.
    Type: Grant
    Filed: June 28, 1977
    Date of Patent: January 23, 1979
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Erich Schacht, Werner Mehrhof, Albrecht Wild, Joachim Gante, Hans-Adolf Kurmeier
  • Patent number: 4134925
    Abstract: Compounds of the formula: ##STR1##The compounds can be produced by reacting the corresponding 4,4'-bis-(halogenmethyl)-ar-octahalogendiphenylethers with at least 2 moles of alkali acetate or formiate in the presence of alcohol as transesterification agent and solvent. The compounds are useful as intermediates for the production of insecticides, herbicides or hydrophobizing agents.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: January 16, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Egon N. Petersen, Klaus Schrage
  • Patent number: 4132706
    Abstract: The trisubstituted (2,5-dihydroxyphenyl)phosphonium hydroxide inner salts and their hydrolyzed derivatives are novel latent catalysts for promoting reaction between vicinal epoxides and phenols and/or carboxylic acids (or anhydrides). Precatalyzed epoxy resins are easily prepared using such catalysts.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: January 2, 1979
    Assignee: The Dow Chemical Company
    Inventors: George A. Doorakian, Lawrence G. Duquette
  • Patent number: 4128573
    Abstract: 2-[4-(2-Fluorophenoxy)phenyl]propionic acid and salts, esters, the amide and the alcohol derived therefrom, useful as anti-inflammatory agents, and their preparation.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: December 5, 1978
    Assignee: Boots Pure Drug Company Limited
    Inventors: Stewart S. Adams, Bernard J. Armitage, John S. Nicholson, James G. Tantum