Plural Rings Containing Patents (Class 568/58)
-
Patent number: 5216049Abstract: The present invention relates to an antidegradant system comprised of (A) an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (B) a unique polymerizable synergist. In addition, there is disclosed a stabilized polymer comprising (A) a polymer selected from the group consisting of (1) homopolymers and copolymers of monoolefins; (2) natural rubber; and (3) synthetic rubber derived from a diene monomer; (B) from about 0.05 to about 10 parts by weight based upon 100 parts of polymer of an antidegradant selected from the group consisting of phenolic antidegradants, amine antidegradants and mixtures thereof; and (C) from about 0.05 to about 20 parts by weight based upon 100 parts of polymer of a unique polymerizable aromatic sulfide synergist.Type: GrantFiled: September 18, 1992Date of Patent: June 1, 1993Assignee: The Goodyear Tire & Rubber CompanyInventors: Dane K. Parker, Gerald O. Schulz
-
Patent number: 5188759Abstract: The invention relates to a liquid crystalline medium having at least two components, where at least one component is a haloacetylene derivatives of the formula IR.sup.1 --A.sup.1 --Z.sup.1 --(A.sup.2 --Z.sup.2).sub.m --A.sup.3 --C.tbd.C--X IwhereinR.sup.1 is an alkyl or alkenyl radical having up to 15 carbon atoms which is unsubstituted or monosubstituted by CN, halogen or CF.sub.3, or such a radical wherein one or more CH.sub.2 groups is replaced, in each case independently of one another, by --S--, --O--, ##STR1## --CO--, --CO--O--, --O--CO-- or --O--CO--O-- in such a manner that sulfur and/or oxygen atoms are not linked directly to one another,A.sup.1, A.sup.2 and A.sup.3, in each case independently of one another, are(a) a trans-1,4-cyclohexylene radical or --S-- one or more non-adjacent CH.sub.Type: GrantFiled: February 1, 1991Date of Patent: February 23, 1993Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: Ekkehard Bartmann, Reinhard Hittich, Herbert Plach, Ulrich Finkenzeller
-
Patent number: 5183926Abstract: Aromatic dicarboxylic acids of the formula ##STR1## in which R.sup.1, R.sup.2, m, n, and X have the meaning mentioned in the description,can be prepared from the bisphenols, on which they are based, of the formula ##STR2## if the bisphenols are first reacted to give the bissulphonates, the sulphonate groups are removed catalytically with H.sub.2 and the hydrocarbons obtained in this way are doubly acylated in a known manner and the acyl groups are oxidized to the carboxyl groups.Many of the aromatic dicarboxylic acids which can be prepared in this way are new.Type: GrantFiled: September 13, 1991Date of Patent: February 2, 1993Assignee: Bayer AktiengesellschaftInventors: Richard Weider, Thomas Scholl
-
Patent number: 5132437Abstract: 1-Aminoanthraquinone (1-AAQ) is synthesized by the reaction of 2-chlorobenzyl chloride and xylene in the presence of a solid acid catalyst to yield 2-chloro dimethyldiphenylmethane, subsequent oxidation of the methyl groups, ring closure to form a 1-chloroanthraquinone carboxylic acid, replacement of the 1-chloro group with ammonia, and decarboxylation.Type: GrantFiled: February 12, 1991Date of Patent: July 21, 1992Assignee: Hoechst Celanese CorporationInventors: Mohammad Aslam, Daniel A. Aguilar
-
Patent number: 5120876Abstract: This invention relates to optical elements capable of second harmonic generation and novel compositions for use in such optical elements comprising polar molecules placed in noncentrosymmetric configuration wherein such optical element has an electron donor moiety linked through a conjugated bonding moiety to an electron acceptor moiety which consists of a selected fluorinated sulfone, fluorinated ketone, fluorinated vinyl sulfone or fluorinated alkyl vinyl sulfone.Type: GrantFiled: February 28, 1990Date of Patent: June 9, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Lap T. Cheng, Andrew E. Feiring, Wilson Tam
-
Patent number: 5100460Abstract: Herbicides of formula: ##STR1## in which: n=0,1, 2f=0,1A is chosen from the groups ##STR2## in which: Ar is chosen from the groups ##STR3## B is chosen from optionally substituted C.sub.1 -C.sub.10 alkyl and C.sub.3 -C.sub.Type: GrantFiled: July 13, 1989Date of Patent: March 31, 1992Assignee: Rhone-Poulenc AgrochimieInventors: Philippe Desbordes, Michel Euvrard
-
Patent number: 5087743Abstract: Diphenylheteroalkyl derivatives of the formula I ##STR1## where A and R.sup.1 -R.sup.6 have the meanings specified in the description, and the preparation thereof are described.The substances are suitable for controlling diseases and as cosmetic agents.Type: GrantFiled: January 23, 1990Date of Patent: February 11, 1992Assignee: BASF AktiengesellschaftInventors: Bernd Janssen, Hans-Heiner Wuest
-
Patent number: 5072017Abstract: Para-substituted o-benzylphenols are prepared by reacting p-substituted phenols with benzylating agents in the presence of zeolites of the faujasite type at elevated temperature.Type: GrantFiled: April 6, 1990Date of Patent: December 10, 1991Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Buysch, Gunter Klug, Peter Mues, Lothar Puppe
-
Patent number: 5053547Abstract: A compound of formula (I) ##STR1## its isomers and its salts in which --R.sub.1, R.sub.3 and R.sub.4 are each independently hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, halogen, C.sub.1 -C.sub.8 -acyloxy or hydroxyl;--R' is hydrogen or C.sub.1 -C.sub.6 -alkyl;--R" is either a polyene chain or a benzene ring are useful in cosmetics and in the treatment of various dermatological and other complaints.Type: GrantFiled: November 14, 1989Date of Patent: October 1, 1991Assignee: L'OrealInventors: Gerard Lang, Jean Maignan, Serge Restle, Braham Shroot
-
Patent number: 5004841Abstract: Aromatic compounds, such as benzene or biphenyl, are alkylated with an alkylating agent having from one to eight carbons atoms, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted aromatic compounds enriched in the linear alkylated isomers, such as p-diisopropylbenzene or p,p'-di(isopropyl)biphenyl, respectively. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.Type: GrantFiled: March 14, 1989Date of Patent: April 2, 1991Assignee: The Dow Chemical CompanyInventors: Guo-shuh J. Lee, Juan M. Garces, Joseph J. Maj, Stephen C. Rocke
-
Patent number: 4977236Abstract: A process for preparation of a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein A is a divalent substituted or unsubstituted aromatic radical, T is a monovalent aromatic radical, x is in the range of 0.5 to 0.001 and n is an integer from 1 to 100.Type: GrantFiled: December 5, 1989Date of Patent: December 11, 1990Assignee: Eastman Kodak CompanyInventors: David R. Fagerburg, Joseph J. Watkins, Paul B. Lawrence, Mark Rule
-
Patent number: 4902835Abstract: New chemical reactions of 1,1,2-trifluoro-1,3-butadiene provide simple access to a series of new fluorinated alkene derivatives. These derivatives provide a simple, general methodology for the stereocontrolled preparation of 2-fluoro-2-alkenoate esters and related monofluoroalkene derivatives which include fluoro analogs of known insecticides, pheromones or pharmaceuticals. A new method for the preparation of 1,1,2-trifluoro-1,3-butadiene is also provided.Type: GrantFiled: January 11, 1988Date of Patent: February 20, 1990Assignee: The University of RochesterInventors: Andrew S. Kende, Noritada Matsuo
-
Patent number: 4898982Abstract: A method is disclosed for the preparation of diaryl ethers and diaryl sulfides by heating a phenol, a thiophenol, a .beta.-hydroxy-substituted fused armomatic ring-system compound or a .beta.-thio-substituted fused aromatic ring-system compound in the presence of thoria deposited on a neutral support.Type: GrantFiled: November 16, 1987Date of Patent: February 6, 1990Assignee: Amoco CorporationInventor: Gregory P. Hussmann
-
Patent number: 4891448Abstract: Polycyclic aromatic compounds, such as biphenyl, are alkylated with an alkylating agent, such as propylene, in the presence of an acidic mordenite zeolite catalyst under conditions sufficient to produce a mixture of substituted polycyclic aromatic compounds enriched in the para alkylated isomers, such as p,p'-di(isopropyl)biphenyl. The novel acidic mordenite catalyst is characterized by its silica/alumina molar ratio, its porosity, and a Symmetry Index. The p,p'-disubstituted isomers of polycyclic aromatic compounds are useful as monomers in the preparation of thermotropic, liquid crystal polymers.Type: GrantFiled: November 23, 1987Date of Patent: January 2, 1990Assignee: The Dow Chemical CompanyInventors: Juan Garces, Joseph J. Maj, G. John Lee, Stephen C. Rocke
-
Patent number: 4885404Abstract: Disclosed is a process for the production of acids of the formula ##STR1## wherein R is 2-fluoro-4-(1,1'-biphenyl), 4-(2-methylpropyl)phenyl, 6-methoxy-2-napthyl, 3-benzophenyl, 4-(2-thienylcarbonyl)-phenyl or 7-chlorocarbazole-3-yl which comprises contacting an organometallic compound of the formula R--M--R.sub.Type: GrantFiled: March 6, 1987Date of Patent: December 5, 1989Assignee: The Upjohn CompanyInventor: Peter G. M. Wuts
-
Patent number: 4876381Abstract: The invention relates to a compound of the formula (II) ##STR1## and the corresponding isomers and salts, in which formula: a and b are integers which independently of one another can assume the values 0 or 1,R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent, independently, a hydrogen atom, a linear or branched C.sub.1 -C.sub.6 -alkyl radical or a C.sub.1 -C.sub.4 -alkoxy radical,R.sub.6 represents a C.sub.1 -C.sub.6 -alkyl radical,R.sub.5 and R.sub.12 represent a hydrogen atom or a C.sub.1 -C.sub.4 -alkyl radical, with the proviso that R.sub.5 cannot represent hydrogen if a=b=0 andR.sub.11 has various meanings.These compounds have useful dermatological properties.Type: GrantFiled: August 18, 1987Date of Patent: October 24, 1989Assignee: L'OrealInventors: Gerard Lang, Jean Maignan, Serge Forestier, Serge Restle, Alain Lagrange, Braham Shroot
-
Patent number: 4876376Abstract: A process for the halogenation (bromination or chlorination)/nitration/fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with a halogen and a nitrating agent in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.Type: GrantFiled: December 15, 1987Date of Patent: October 24, 1989Assignee: Rhone-Poulenc Specialistes ChimiquesInventors: Michael Desbois, Camille Disdier
-
Patent number: 4822918Abstract: Organic sulfur compounds, such as sulfonic acids, sulfonyl halides, sulfonates, sulfonamides, sulfonic acid anhydrides, sulfones, sulfoxides and/or disulfanes, are reduced by a method in which the sulfur compound in the liquid or gas phase is reacted with a hydrocarbon in the presence of carbon at from 100.degree. to 500.degree. C.Type: GrantFiled: September 4, 1987Date of Patent: April 18, 1989Assignee: BASF AktiengesellschaftInventors: Toni Dockner, Manfred Sauerwald
-
Patent number: 4808762Abstract: Compounds of the formula ##STR1## in which Ar is substituted or unsubstituted phenyl, naphthyl, or thienyl; Z is oxygen, sulfur, or methylene; and Ar' is 2-methyl[1,1'-biphenyl]-3-yl, 3-phenoxyphenyl, 4-fluoro-3-phenoxyphenyl, or 6-phenoxy-2-pyridyl exhibit pyrethroid-like insecticidal and acaricidal activity and are relatively harmless to aquatic fauna.Type: GrantFiled: September 9, 1987Date of Patent: February 28, 1989Assignee: FMC CorporationInventors: Gary A. Meier, Scott M. Sieburth, Thomas G. Cullen, John F. Engel
-
Patent number: 4792634Abstract: A method for preparing aryl sulfides by heating an iodoaromatic compound with elemental sulfur at a temperature above about 150.degree. C.Type: GrantFiled: August 20, 1987Date of Patent: December 20, 1988Assignee: Eastman Kodak CompanyInventor: Mark Rule
-
Patent number: 4772633Abstract: This invention relates to a novel compound represented by the following general formula (I), its production, and an insecticidal and acaricidal composition containing it as an active ingredient: ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom, a halogen atom, a lower alkyl group, a trifluoromethyl group, a lower alkoxyl group, a lower alkenyloxy group or a halogenated lower alkoxyl group or are, taken together, a methylenedioxy group; R.sub.3 is a vinyl group or a ethynyl group; R.sub.4 is a hydrogen atom or a lower alkyl group; R.sub.5 is a hydrogen atom or a fluorine atom; R.sub.6 is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or a trifluoromethyl group; Z is a nitrogen atom or a group represented by the formula --CH.dbd.; when Z is a nitrogen atom, Y is an oxygen atom; and when Z is a group of the formula --CH.dbd., Y is an oxygen atom, a sulfur atom, a methylene group or a group represented by the formula --NH--.Type: GrantFiled: February 20, 1986Date of Patent: September 20, 1988Assignee: Sumitomo Chemical Company, LimitedInventors: Noritada Matsuo, Kazunori Tsushima, Sumio Nishida, Toshihiko Yano, Masachika Hirano
-
Patent number: 4760013Abstract: Alkyldiarylsulfonium salts of 9, 10,-dithiophenoxyanthracene are useful as photoinitiators in resist compositions, such as epoxy resin formulations, particularly using long wavelength light.Type: GrantFiled: February 17, 1987Date of Patent: July 26, 1988Assignee: International Business Machines CorporationInventors: Nigel P. Hacker, Carl E. Larson
-
Patent number: 4719236Abstract: The present invention relates to compounds of formula (I)ArCH.sub.2 R.sup.1 (I)or a monomethyl or a monoethyl ether thereof (the compound of formula (I) including these ethers may contain no more than 30 carbon atoms in total); ethers, esters thereof; acid additon salts thereof; wherein Ar is a perylene or substituted perylene ring system; R.sup.1 contains not more than eight carbon carbon atoms and is a group ##STR1## wherein m is 0 or 1;R.sup.5 is hydrogen;R.sup.6 and R.sup.7 are the same or different and each is hydrogen or C.sub.1-3 alkyl optionally substituted by hydroxy;R.sup.8 and R.sup.9 are the same or different and each is hydrogen or C.sub.1-3 alkyl; ##STR2## is a five- or six-membered saturated carbocyclic ring; R.sup.10 is hydrogen, methyl or hydroxymethyl;R.sup.11, R.sup.12 and R.sup.13 are the same or different and each is hydrogen or methyl; R.sup.14 is hydrogen, methyl, hydroxy, or hydroxymethyl.Type: GrantFiled: October 17, 1984Date of Patent: January 12, 1988Assignee: Burroughs Wellcome Co.Inventor: Kenneth W. Bair
-
Patent number: 4686303Abstract: A process for preparation of diaryl sulphides by reaction of an aromatic diazonium salt in an alkaline medium with arenethiol is catalyzed by a non-metallic solid, such as charcoal, silica gel or aluminium oxide, having a specific surface of greater than or equal to 0.02 m.sup.2 /cm.sup.3.Type: GrantFiled: June 26, 1986Date of Patent: August 11, 1987Assignee: Cassella AktiengesellschaftInventors: Wolfgang Bauer, Manfred Langer, Winfried Sperling
-
Patent number: 4631143Abstract: Triphenylene derivatives of the formula I ##STR1## wherein X.sup.1 to X.sup.6 are each, independently of one another, --SH, --SR, --SOR, --SO.sub.2 R or --S--COR, and each R is an alkyl group with up to 20 C atoms, it being possible for one or two CH.sub.2 groups to be replaced by O atoms and/or by unsubstituted or substituted vinylene or vinylidene groups, may be used as components of discotic liquid-crystalline phases.Type: GrantFiled: December 21, 1984Date of Patent: December 23, 1986Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Klaus Praefcke, Bernd Kohne, Wadi Poules, Eike Poetsch
-
Patent number: 4621095Abstract: The invention relates to bis-azolyl-substituted t-butanol derivatives defined herein under formula (I) and their use as antimycotic agents. Included in the invention are compositions containing said t-butanol derivatives and methods for using said derivatives and compositions containing them for their antimycotic activity.Type: GrantFiled: August 11, 1983Date of Patent: November 4, 1986Assignee: Bayer AktiengesellschaftInventors: Erik Regel, Karl H. Buchel, Manfred Plempel
-
Patent number: 4618722Abstract: A process for preparing dihydrocarbyl sulfides comprises the step of simultaneously contacting (a) a dialkyl sulfoxide, preferably dimethyl sulfoxide, with (b) a hydrocarbyl halide, particularly an alkyl or alkenyl bromide, and (c) a metal carboxylate, preferably an alkali metal acetate, under such conditions as will produce at least one alkyl hydrocarbyl sulfide or alkenyl hydrocarbyl sulfide.Type: GrantFiled: June 10, 1985Date of Patent: October 21, 1986Assignee: Phillips Petroleum CompanyInventor: Charles A. Drake
-
Patent number: 4570005Abstract: 2-Arylpropyl ether or thioether derivatives represented by the following general formula [I]: ##STR1## wherein Ar stands for an aryl group, R stands for a methyl or ethyl group, Y stands for an oxygen or sulfur atom, and B stands for a group represented by the following formula [II]: ##STR2## or the following general formula [III]: ##STR3## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 stands for a hydrogen or halogen atom or a lower alkyl group or a lower alkoxy group, and n is an integer of from 1 to 5 with the proviso that when n is 2 or more, the groups R.sup.1 may be the same or different,are produced by reacting a compound represented by the following formula (V): ##STR4## with a compound represented by the following formula (VI):B--CH.sub.2 --D (VI)wherein Ar, R and B are defined above, A is a halogen atom and D is Y--H in which Y is as defined above,in the presence of a base in dimethylsulfoxide or sulfolane.Type: GrantFiled: July 14, 1983Date of Patent: February 11, 1986Assignee: Mitsuitoatsu Chemicals Inc.Inventors: Kiyoshi Nakatani, Satoshi Numata, Tsuneo Inoue, Kenji Kodaka, Tsutomu Ishii, Teruhiko Toyama, Hajime Tachibana, Takatoshi Udagawa, Masatoshi Gohbara
-
Patent number: 4560808Abstract: A transalkylation process for the preparation of dihydric phenols comprising reacting, in the presence of an acid or base catalyst, at least one mole of an aromatic monohydroxy compound such as a phenol with at least one mole of an aromatic dihydroxy compound such as a dihydric phenol, thereby forming at least one dihydric phenol which is different than said aromatic dihydroxy compound.Type: GrantFiled: January 2, 1985Date of Patent: December 24, 1985Assignee: General Electric CompanyInventors: Victor Mark, Charles V. Hedges
-
Patent number: 4542233Abstract: Improvement in the process for preparing biaryl compounds via coupling of an arylamine with an arene in the presence of a nitrite, an acid and copper metal or a derivative thereof; the improvement is consisting in adding to the reaction mixture a trialkylorthoformate. The process may be used for preparing drugs such as Flurbiprofen and Xenbucin or intermediate compounds particularly useful for preparing Flurbiprofen, Flufenisal, Chlordimorin, Xenbucin, Xenysalate, Xenyhexenic acid and the like.Type: GrantFiled: July 20, 1983Date of Patent: September 17, 1985Assignee: Biaschim S.p.A.Inventors: Oreste Piccolo, Aldo Belli, Giovanni Villa, Enrico Zen, Attilio Citterio
-
Patent number: 4502973Abstract: Electroviscous (EV) fluids consisting of solid hydrophilic particles dispersed in hydrophobic liquids, where the liquid contains a diaryl derivative component of general formula I ##STR1## in which R is CY.sub.2,O,S,SO,SO.sub.2,SiF.sub.2, or O--SiY.sub.2 --O,X.sup.1 and X.sup.2 are halogens, (m+n) is between 1 and 3 on average, and (p+q) is between 0 and 1 on average. EV fluids containing these novel components possess generally improved properties in terms of lower viscosities, electrical conductivities, toxicities and freezing points. In a preferred embodiment, the component is a mixture of brominated diphenyl methanes in which R is CH.sub.2,n=O,X.sup.1 =Br,(m+n) is approximately one, and (p+q)=0.Type: GrantFiled: February 3, 1983Date of Patent: March 5, 1985Assignee: National Research Development CorporationInventor: James E. Stangroom
-
Patent number: 4496720Abstract: A novel process for the preparation of thioethers comprising reacting a silylated thiol of the formulaR--S--SiR.sub.1 R.sub.2 R.sub.3 Iwherein R is an organic group and R.sub.1, R.sub.2 and R.sub.3 are individually selected from the group consisting of alkyl of 1 to 4 carbon atoms with an organic halide, sulfate or sulfonate in the presence of hexamethylphosphoric triamide as a solvent or co-solvent preferably under neutral conditions in aprotic solvents at a temperature between 0.degree. and 150.degree. C.Type: GrantFiled: March 7, 1983Date of Patent: January 29, 1985Assignee: Gist-Brocades N.V.Inventors: Cornelis A. Bruynes, Theodorus K. Jurriens
-
Patent number: 4490558Abstract: Thioethers are prepared by a process wherein an alkali metal mercaptide is reacted with an alcohol and carbon monoxide or with a formate, and are useful starting materials for the preparation of dyes, crop protection agents, drugs and rubber auxiliaries.Type: GrantFiled: July 5, 1983Date of Patent: December 25, 1984Assignee: BASF AktiengesellschaftInventor: Kaspar Bott
-
Patent number: 4438282Abstract: Sulfides prepared by reacting a sulfoxide with a hydrazine or hydroxylamine derivative or a quaternary salt thereof are useful starting materials for the preparation of drugs, pesticides and dyes.Type: GrantFiled: June 23, 1982Date of Patent: March 20, 1984Assignee: BASF AktiengesellschaftInventors: Hartmut Lardon, Guenther Seybold
-
Patent number: 4400293Abstract: Cyclohexylphenyl derivatives of the formula ##STR1## wherein X is --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --O--, --CH.sub.2 --S--, --O--CH.sub.2 -- or --S--CH.sub.2 --; R.sub.1 is alkyl of up to 8 carbon atoms; R.sub.2 is alkyl or alkoxy each of up to 8 carbon atoms, fluorine, chlorine, bromine or cyano; and R.sub.3 and R.sub.4 are both hydrogen or one is hydrogen and the other is fluorine, chlorine, bromine or cyano, with the proviso that R.sub.3 and R.sub.4 are both hydrogen when X is --CH.sub.2 --CH.sub.2 -- or R.sub.2 is fluorine, chlorine, bromine or cyano, are valuable liquid crystalline compounds.Type: GrantFiled: October 29, 1981Date of Patent: August 23, 1983Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Michael Romer, Joachim Krause, Ludwig Pohl
-
Patent number: 4397864Abstract: The present invention relates to 2-arylpropyl ether or thioether derivatives represented by the following general formula [I]: ##STR1## wherein Ar stands for an aryl group, R stands for a methyl or ethyl group, Y stands for an oxygen or sulfur atom, and B stands for a group represented by the following formula [II]: ##STR2## or the following general formula [III]: ##STR3## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 stands for a hydrogen or halogen atom or a lower alkyl group or a lower alkoxy group, and n is an integer of from 1 to 5 with the proviso that when n is 2 or more, the groups R.sup.1 may be the same or different, and also to processes for the preparation or these ethers of thioethers and a use of these ethers or thioethers.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicity of these compounds are very low.Type: GrantFiled: April 14, 1981Date of Patent: August 9, 1983Assignee: Mitsuitoatsu Chemicals Inc.Inventors: Kiyoshi Nakatani, Satoshi Numata, Tsuneo Inoue, Kenji Kodaka, Tsutomu Ishii, Teruhiko Toyama, Hajime Tachibana, Takatoshi Udagawa, Masatoshi Gohbara
-
Patent number: 4374732Abstract: Organo-sulfur impurities are removed from organic or aqueous solutions by contacting said solutions with polymers containing functional groups consisting of metal salts of N-halosulfonamides.Type: GrantFiled: September 30, 1981Date of Patent: February 22, 1983Assignee: The Goodyear Tire & Rubber CompanyInventor: Roger J. Hopper
-
Patent number: 4374291Abstract: Bis(ethynylphenyl) compounds are prepared by an improved synthesis process which increases yield and is suitable for large scale synthesis operations. Aromatic dianilines are diazotized to form aromatic halides that are subsequently coupled with an end-protecting group having acetylenic moieties. The end-protecting groups are subsequently removed leaving the desired diethynyl derivative in quantitative yields.Type: GrantFiled: November 6, 1981Date of Patent: February 15, 1983Assignee: Hughes Aircraft CompanyInventor: Kreisler S. Y. Lau
-
Patent number: 4343029Abstract: Capacitors and similar electrical devices containing a dielectric liquid have superior properties when the dielectric liquid is a polyalkylated diphenyl sulfide. Particularly good dielectric properties are provided when the liquid consists essentially of the mixed isomers obtained by reacting m-xylene or similar dialkylbenzene with SCl.sub.2.Type: GrantFiled: September 16, 1980Date of Patent: August 3, 1982Assignee: The Dow Chemical CompanyInventors: James M. Renga, Albert H. Emmons
-
Patent number: 4328169Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of an alkylene oxide derivative and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.Type: GrantFiled: October 27, 1980Date of Patent: May 4, 1982Assignee: Emery Industries, Inc.Inventor: Allen L. Hall
-
Patent number: 4328168Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of a cyclic polyether compound and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.Type: GrantFiled: October 27, 1980Date of Patent: May 4, 1982Assignee: Emery Industries, Inc.Inventor: Richard G. Fayter, Jr.
-
Patent number: 4287125Abstract: Benzenoid ethers/thioethers are prepared by reacting an activated halobenzene with an anionic reactant, RA.sup.- M.sup.+, in the presence of at least one tertiary amine sequestering agent having formula:N--CHR.sub.1 --CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.Type: GrantFiled: June 20, 1980Date of Patent: September 1, 1981Assignee: Rhone-Poulenc IndustriesInventor: Gerard Soula
-
Patent number: 4284817Abstract: Thiophenols are produced by reacting the corresponding benzene compound with hydrogen sulfide in contact with an absorptive catalyst, such as activated carbon, calcined petroleum coke, etc. Temperatures in the range of from about 500.degree. to 900.degree. C. are employed.Type: GrantFiled: June 2, 1977Date of Patent: August 18, 1981Assignee: Stauffer Chemical CompanyInventors: Kyung S. Shim, Adam E. Skrzec
-
Patent number: 4267375Abstract: Thioethers may be prepared by reacting a thiol, such as thiophenol, with an alcohol (having electron donor groups in the alpha or beta position to its hydroxyl group) such as phenyl-1-hydroxy-phenethylsulfide. Reaction is carried out in the presence of a Lewis Acid metal halide, typically zinc chloride.Type: GrantFiled: September 25, 1978Date of Patent: May 12, 1981Assignee: s.a. Texaco Belgium n.v.Inventors: Alfred G. Maasbol, Lothar G. Dulog
-
Patent number: 4252739Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yields. The process involves reacting an alkylating agent and an activated methylene compound in the presence of an onium compound, an alkali metal compound and water, which while only necessary in trace amounts can be present in substantial quantities.Type: GrantFiled: August 20, 1979Date of Patent: February 24, 1981Assignee: Emery Industries, Inc.Inventors: Richard G. Fayter, Jr., John F. White, Eugene G. Harris
-
Patent number: 4210552Abstract: Certain sulfonium salts are herein described which are useful corrosion inhibitors in aqueous acidic cleaning solutions, even in the presence of ferric ions.Type: GrantFiled: September 28, 1978Date of Patent: July 1, 1980Assignee: The Dow Chemical CompanyInventors: Wayne W. Frenier, William J. Settineri