Abstract: The invention is a bis-BCB compound of the structure: ##STR1## a method for making same and polymers made therefrom. The novel compounds of this invention are useful in preparing polymers that can form thin film coatings for multichip midules (MCMs) and integrated circuits (ICs). These compounds can be isolated as liquids at room temperature, and can form polymers that are hydrophobic and have low dielectrical and dissipative properties.

Abstract: Compound of formula ##STR1## wherein a) indexes m and n are identical and stand each for an integer number equal to zero, symbols R.sup.1 and R.sup.2 are identical and represent each a hydrogen atom, or are different and represent each a hydrogen atom or a methyl radical, symbols R.sup.5 and R.sup.8 stand each for a methyl radical, symbols R.sup.6 and R.sup.7 can be identical or different and designate each a hydrogen atom or a methyl radical and, either symbol R.sup.4 represents a methyl radical and symbol R.sup.3 stands for a hydrogen atom or a methyl radical, or symbols R.sup.3 and R.sup.4 represent each a methylene radical belonging to a ring such as indicated by the dotted line, with the proviso that the following combinations are excluded:1. R.sup.1 =R.sup.2 =R.sup.3 =R.sup.6 =R.sup.7 =H, or2. R.sup.1 =R.sup.2 =R.sup.3 =H and R.sup.6 or R.sup.7 =CH.sub.3, or3. R.sup.2 =CH.sub.3 and R.sup.3 =R.sup.6 =R.sup.7 =H, or4. R.sup.2 =CH.sub.3 and R.sup.3 =H and R.sup.6 or R.sup.7 =CH.sub.3, or5. R.sup.1 =R.sup.

Abstract: A novel tetracyclic cyclohexylcyclohexene derivatives represented by formula: ##STR1## wherein ##STR2## n, X and Y are as defined in the specifications, are disclosed. The compounds are useful as electroptic display materials.

Abstract: A polycyclic aromatic is contacted with an alkyl-substituted single ring aromatic, such as toluene, o-, m- or p-xylene or mesitylene, over a catalyst comprising a zeolite, such as zeolite beta, USY or ZSM-5 to alkylate the polycyclic aromatic. The polycyclic aromatic can be a fused polynuclear aromatic, e.g. phenanthrene, or an assembly of two or more cyclic systems, e.g. biphenyl. The polycyclic aromatic can also include carbocyclic systems such as fluorene and naphthalene or heterocyclic systems such as benzothiophene and dibenzothiophene. The polycyclic aromatic can be derived from a cycle oil, coker gas oil, extract of lubricant solvent refining or crude distillate fraction. The transalkylating agent can be derived from a reformate, pyrolysis gasoline or coker naphtha.

Abstract: This invention is directed to a class of arylcyclobutene monomers having the general formula: ##STR1## wherein Ar is aromatic, with the proviso that the carbons of the cyclobutene rings are bonded to adjacent carbon atoms on the same aromatic ring of Ar;and R.sup.1 is a divalent alkyl, cycloaliphatic, aromatic, heteroaromatic, or heterocyclic moiety;polymeric compositions containing these monomers; and articles containing said polymeric compositions.

Abstract: Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; rings A, B and C each independently represent trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or unsubstituted or fluoro-substituted 1,4-phenylene; R.sup.1 denotes 3E-alkenyl with 4 to 12 carbon atoms, 4-alkenyl with 5 to 12 carbon atoms or, when ring A represents trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl, also 1E-alkenyl with 2 to 12 carbon atoms; and R.sup.2 is hydrogen or C.sub.1 -C.sub.10 -alkyl, their manufacture as well as liquid crystalline mixtures which contain such compounds and their use for electro-optical purposes.

Abstract: Monomers, B-stage polymers, C-stage polymers, cured polymers and electricy conducting polymers of acetylene-terminated aromatic monomers containing three benzene rings separated by ethylene groups are disclosed. These new polymers can withstand aggressive environments and are particularly adapted for use in high temperature composites in addition to the utilization of their electrical conducting properties. Preparation of these materials is accomplished by melt polymerization and heat treatment at high temperatures.

Abstract: Aromatic compounds are alkylated with C.sub.20 -C.sub.1300 olefinic oligomers using an acidic alkylation catalyst to produce alkylated aromatic products, usually alkylaromatic hydrocarbons. The olefinic oligomers used as alkylating agents are prepared from 1-alkene oligomerization in contact with reduced metal oxide catalyst, preferably reduced chromium oxide on a silica support. The alkylated aromatic hydrocarbons retain the unique features of the alkylating olefinic oligomer and exhibit high viscosity index and low pour point. If the alkylation is carried out under certain combinations of conditions, especially using a Lewis acid catalysts such as aluminum trichloride and at higher temperatures, the alkyl portion of the product will undergo isomerization. The alkylaromatic compositions show improved thermal stability and are useful as lubricant basestocks and additives for improved antiwear properties, antioxidant and other properties.

Abstract: A tolan derivative useful as a component of liquid crystal materials and being superior to conventional tolan derivatives in the characteristics of .DELTA.n and viscosity, and a liquid crystal composition containing the same are provided, which tolan derivative is expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group of 1 to 10 carbon atoms.

Abstract: Dielectric liquids are prepared by (a) Friedel-Crafts condensing at least one aromatic halide with at least one aromatic compound in the presence of a catalytically effective amount of ferric chloride, and thereafter deliberately avoiding any downstream destruction/neutralization and/or washing of such ferric chloride catalyst, (b) optionally, removing unreacted reactants from the medium of reaction, and (c) recovering from such medium of reaction a purified dielectric liquid; the subject process is thus environmentally improved by avoiding the generation of aqueous solutions containing contaminating amounts of objectionable organic compounds.

Abstract: 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.

Abstract: Provided is a process for preparing optionally-substituted cyclohexenylhydroquinones starting from cyclohexanone.

Abstract: Compounds of the formula ##STR1## wherein n stands for the number 0 or 1; rings A, B and C each independently represent trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl or unsubstituted or fluoro-substituted 1,4-phenylene; R.sup.1 denotes 3E-alkenyl with 4 to 12 carbon atoms, 4-alkenyl with 5 to 12 carbon atoms or, when ring A represents trans-1,4-cyclohexylene or trans-1,3-dioxane-2,5-diyl, also 1E-alkenyl with 2 to 12 carbon atoms; and R.sup.2 is hydrogen or C.sub.1 -C.sub.10 -alkyl,their manufacture as well as liquid crystalline mixtures which contain such compounds and their use for electro-optical purposes.

Abstract: A process for treating a by-product oil is disclosed, which comprises treating a raw material containing a heavy oil formed as a by-product in the step of producing alkylbenzene or the like by alkylation of benzene or the like, with a catalyst of crystalline synthetic zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 (molar ratio) of 20 or more and inlets of main pores (main cavity openings) of ten-membered oxygen rings in a liquid phase at a temperature of 320.degree. C. or below, wherein said raw material contains up to 2 wt % of methylnaphthalene. This process makes it possible to prevent reduction in the catalytic treatment efficiency.

Abstract: A liquid crystal compound is provided, having a large optical anisotropy .DELTA.n value and yet a low viscosity, and which can be added to a liquid crystal composition, without lowering the NI point of the composition and raising the viscosity thereof, while raising the .DELTA.n value thereof. The liquid crystal compound is a 4-substituted-4'-(1-alkynyl)tolan expressed by the formula ##STR1## wherein R.sup.1 and R.sup.2 each is 1-8C alkyl and one CH.sub.2 group or two non-adjacent CH.sub.2 groups present therein may be replaced by any one of O, --CO--, --CO--O--, --O--CO-- or --CH.sub.2 .dbd.CH.sub.2 --; --A-- is unsubstituted 1,4-phenylene, 1,4-phenylene having one or two F, Cl or Br atoms or CN groups, 1,4-cyclohexylene, pyrimidine-2,5-diyl or 1,3-dioxane-2,5-diyl; X is --COO--, --OCO--, --CH.sub.2 --CH.sub.2 --, --OCH.sub.2 --, --CH.sub.2 O--, --CH.dbd.CH-- or a single bond; n is 0 or 1 and when n is 0, X is a single bond; and Y is H or F.

Abstract: Liquid detergents containing, as the fluorescent whitener, 2,2'-dichloro-5,5'-disulfodistyrylbiphenyl, process for the preparation and use of the liquid detergent for washing and pre-treating textile fabrics; these are liquid detergents which are stable on storage, do not sediment, are stable to bleaching systems and do not form spots in the course of pre-treatment.

Abstract: A new electrical insulating oil composition having improved low temperature characteristics which composition comprises a mixture of 40% by weight or more of benzyltoluene and the remainder of alkyl substituted diphenylmethane having 15 to 17 carbon atoms which is represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.1 to C.sub.4 alkyl groups and the total number of carbon atoms in R.sub.1 and R.sub.2 is 1 to 4, except that R.sub.1 and R.sub.2 are simultaneously methyl groups; and the proportion of the total quantity of solid phase calculated according to the following general solid-liquid equilibrium equation is 45% by weight or less relative to the total quantity of said composition at -40.degree. C.: ##EQU1## wherein X.sub.i is the equilibrium mole fraction of a component i, in the liquid phase, .DELTA.H.sub.i.sup.f is the heat of fusion (cal.mol.sup.-1), T.sub.i.sup.f is the melting point (K), T is the temperature (K) of the system, and R is the gas constant (cal.

Abstract: An electroluminescence device comprising, as a light emitting material, a compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each an alkyl, cyclohexyl, alkoxy, cyano or aryl, R.sup.3 and R.sup.4 are a heterocyclic or aryl and Ar is an arylene. Aromatic dimethylidyne compounds of the formula: ##STR2## wherein X and Y are each an alkyl, phenyl, cyclohexyl, naphthyl or pyridyl and Ar' is ##STR3## Electroluminescence devices (EL devices) using the above compounds as a light emitting material provide EL light emission of high luminance in a region of bluish purple to green.

Abstract: This invention describes a novel method of preparing metallocene compounds. The invention is based on synthesis of novel bis cyclopentadienides that, under appropriate conditions, will either encapsulate a transition metal to produce a metallocene such as ferrocene, or ferrocene derivative, or will yield a polymeric metallocene. Compounds produced by this process are useful as catalysts in propulsion systems, or as anti-knock compounds in gasolines.

Abstract: A new electrical insulating oil composition having improved low temperature characteristics which composition comprises a mixture of 40% by weight or more of benzyltoluene and the remainder of alkyl substituted diphenylmethane having 15 to 17 carbon atoms which is represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.1 to C.sub.4 alkyl groups and the total number of carbon atoms in R.sub.1 and R.sub.2 is 1 to 4, with the proviso that R.sub.1 and R.sub.2 may not simultaneously be methyl groups and the proportion of the total quantity of solid phase calculated according to the following general solid-liquid equilibrium equation is 45% by weight or less relative to the total quantity of said composition at -40.degree. C.: ##EQU1## where X.sub.i is the equilibrium mole fraction of a component i, in the liquid phase, .DELTA.H.sub.i.sup.f is the heat of fusion (cal.mol.sup.-1), T.sub.i.sup.

Abstract: Stilbene compounds of the general formula Ia, Ib or IcR.sup.1 R.sup.2 R.sup.3 Ar.sup.1 --CH.dbd.CH--Ar.sup.3 R.sup.4 R.sup.5 R.sup.6 (Ia)R.sup.1 R.sup.2 R.sup.3 Ar.sup.1 --CH.dbd.CH--Ar.sup.2 R.sup.4 R.sup.5 R.sup.6 --CH.dbd.CH--Ar.sup.3 R.sup.7 R.sup.8 R.sup.9 (Ib)R.sup.1 R.sup.2 R.sup.3 Ar.sup.1 --CH.dbd.CH--Ar.sup.2 (CH.sub.2).sub.n Ar.sup.3 --CH.dbd.CH--Ar.sup.4 R.sup.4 R.sup.5 R.sup.6 (Ic)where Ar.sup.1 to Ar.sup.4 are identical or different aromatic or quasi-aromatic radicals and n is from 0 to 20 and where either at least one of the radicals R.sup.1 to R.sup.6 or R.sup.9 is hydrocarbon-solubilizing alkyl, alkoxy, dialkylamino or diarylamino of 4 or more carbon atoms in the alkyl moiety or, if formula Ic contains no radicals R.sup.1 to R.sup.6, n is not less than 4, are prepared by metalating a toluene/xylene analog R.sup.1 R.sup.2 R.sup.3 ArCH.sub.3 or H.sub.3 CR.sup.4 R.sup.5 R.sup.6 ArCH.sub.

Abstract: Novel Styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.

Abstract: An electrical insulating oil composition which comprises 45% by weight or more of at least 2 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, and (f) 1,1-diphenylethane; and the remainder of non-condensed bicyclic aromatic hydrocarbons having not more than 17 carbon atoms besides the above 6 components; and is characterized in that, when the temperature of the composition is -40.degree. C., (I) the total quantity of solid phase obtained by calculating according to the following solid-liquid equilibrium equation is 45% by weight or less relative to the total quantity of the composition, and (II) in the liquid phase composition calculated by the following solid-liquid equilibrium equation, the total quantity of the compounds (a) to (f) is 40% by weight or more and the viscosity of this liquid phase is 500 cSt or lower, ##EQU1## wherein X.sub.

Abstract: An electrical insulating oil composition having good low temperature characteristics which comprises at least 4 members selected from the group consisting of (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) o-benzyltoluene, (d) m-benzyltoluene, (e) p-benzyltoluene, (f) 1,1-diphenylethane, and (g) 1,1-diphenylethylene; and is characterized in that the proportion of solid phase at a temperature of -40.degree. C. of the electrical insulating oil composition is not more than 45% by weight and the proportion of the total quantity of solid phase is calculated according to the following general equation of solid-liquid equilibrium: ##EQU1## wherein X.sub.i is the equilibrium mole fraction of a component i in the liquid phase of the composition, .DELTA.H.sub.i.sup.f is the heat of fusion (cal.mol.sup.-1), T.sub.i.sup.f is the melting point (K), t is the temperature (K), and R is the gas constant (cal.mol.sup.-1.K.sup.-1).

Abstract: Novel styryl-tetrahydromaphthalene and indane derivatives useful for treating neoplasms and dermatoses.

Abstract: New propene derivatives as intermediates for the preparation of pesticidal silane derivatives. Compounds of the formula ##STR1## wherein R.sup.4 is H, R.sup.5 is a radical of the formula ##STR2## and R.sup.17 is H or halogen are useful intermediates for the preparation of pesticidal silane derivatives.

Abstract: An electrical insulating oil mainly comprising a fraction having excellent low temperature characteristics, said fraction being prepared by bringing a by-product oil fraction containing diphenylmethane and 1,1-diphenylethane into contact with alkylbenzenes in the presence of a ZSM-5 type synthetic zeolite catalyst, then recovering a fraction containing 1,1-diphenylethane and other diarylalkanes and containing mainly components having boiling points in the range of 270.degree. to 300.degree. C. as atomspheric pressure basis, said by-product oil fraction being by-produced in the preparation of ethylbenzene by alkylating benzene with ethylene.

Abstract: The present invention relates to an improved electrical insulating oil composition which has excellent electrical characteristics and is suitable for use in impregnating electrical appliances in which plastic dielectric material is used, and further relates to electrical appliances impregnated with such a composition. The electrical insulating oil composition is produced by bringing a by-product oil fraction mainly containing components having boiling points in the range of 260.degree. to 330.degree. C. (atmospheric pressure basis) into liquid-liquid contact with an organic polar solvent; said by-product oil fraction being formed by alkylating benene or toluene with ethylene in the presence of an alkylation catalyst and then distilling the alkylation product; and said electrical insulating oil composition being characterized in that the ratio of the integrated intensity as chemical shift at 120 to 155 ppm of the spectrum measured by .sup.

Abstract: Polyarylalkane oligomer compositions consisting essentially of a mixture of isomers of xylyl-xylene and of higher homologues and a mixture of isomers of bis(dimethylphenyl)xylylene and of higher homologues; the method of making such compositions by first reacting toluene, xylene, or a mixture of toluene and xylene with chlorine in the presence of a radical generator, removing the unreacted toluene, and then subjecting the reaction product to the action of an inorganic halide or inorganic acid in the presence of xylene, and microcapsules containing color-forming material wherein the compositions are used as solvents for the color-forming material.

Abstract: Polyarylalkane oligomer compositions containing essentially of a mixture of isomers of benzylcumene and its higher homologues and a mixture of isomers of bis(isopropylphenyl)phenylmethane; the method of making such compositions by first reacting chlorine with toluene, xylene, or a mixture of toluene and xylene in the presence of a radical generator, removing the unreacted toluene and/or xylene, and then subjecting the reaction product to the action of an inorganic halide or of an inorganic acid in the presence of a benzene-related compound; and microcapsules containing color-forming material wherein the compositions are used as solvents for the color-forming material.

Abstract: Liquid detergent compositions which are stable on storage and contain fluorescent whitening agents from the class of the disulfonated distyrylbiphenyl and distyrylphenyl compounds; they do not produce bleach spots on direct contact with textile fabric. Some of the fluorescent whitening agents used are novel.

Abstract: The invention relates to a new compound of (3-Vinylphenyl)phenylmethane and a method for producing .alpha.-(3-benzoylphenyl)propionic acid of ketoprofen without difficulty at low cost and in a high yield. The method comprises the steps of: reacting (3-vinylphenyl)phenylmethane with carbon monoxide and hydrogen, water or lower alcohol in the presence of a transition metal carbonylation catalyst to form .alpha.-(3-benzylphenyl)propionic acid derivative, and when the thus obtained compound is an aldehyde, oxidizing methylene group and formyl group of the compound simultaneously or sequentially, or when the obtained compound is an acid or its ester, oxidizing the methylene group of the compound, and if need be, it is followed by hydrolysis.

Abstract: A method for producing an electrical insulating oil composition composed of benzyltoluene and ditolymethane. The composition is excellent in low-temperature characteristics and contains substantially no chlorine. The method comprises the steps of reacting monocyclic aromatic hydrocarbon with diarylmethane which has been prepared without using a chlorinated hydrocarbon as a starting material, at a temperature of -10.degree. to 550.degree. C. in the presence of a disperoportionation catalyst to prepare a reaction product containing benzyltoluene and ditolylmethane, and recovering benzyltoluene and ditolylmethane from said reaction product by distillation.

Abstract: Novel compounds of 1,2-di(isobutylphenyl)ethane and 1,2-di(isobutylphenyl)ethylene, method for producing the same and method for preparing 4-isobutylstyrene and .alpha.-(4-isobutylphenyl)propionic acid from any of these compounds. In the preparation of 4-isobutylstyrene from the former two compounds by cracking or disproportionation, the components in the resultant reaction mixture can be separated without difficulty, the formation of by-product isobutylbenzene can be avoided, and the remaining unreacted starting material can be reused for the same reaction without causing any adverse effect on a catalyst.

Abstract: Compositions useful as pour point depressants, novel compounds within such compositions, and processes for making same, as well as lubricant oil compositions containing same, are disclosed. The novel compounds are encompassed by the general structural formula (I)Ar(R)--[Ar'(R')].sub.n --Ar" (I)wherein the Ar, Ar' and Ar" are independently an aromatic moiety containing 1 to 3 aromatic rings and each aromatic moiety is substituted with 0 to 3 substituents, (R) and (R') are independently an alkylene group containing about 1 to 100 carbon atoms with the proviso that at least one of (R) or (R') is CH.sub.2, and n is 0 to about 1000; with the proviso that if n is 0, then (R) is CH.sub.2 and each aromatic moiety is independently substituted with 0 to 3 substituents with one aromatic moiety having at least one substituent, the substituents being selected from the group consisting of a substituent derived from an olefin and a substituent derived from a chlorinated hydrocarbon.

Abstract: A method of making liquid crystalline compounds of the formula ##STR1## where A represents a cyclohexane ring, n has values of 1, 2 or 3, R1 is an alkyl radical, R2 is an alkyl, alkoxy, or alkylcyclohexyl or cyanide radical, and X1 is lower alkyl and X2, X3 and X4 is alkyl and preferably methyl, ethyl or propyl, hydrogen, halogen and preferably fluorine or cyanide and to the compound.

Abstract: Cyclohexane derivatives of formula I ##STR1## wherein R is an alkyl group which has 1-12 C atoms and in which one or two non-adjacent CH.sub.2 groups can also be replaced by O, --CO--O-- or --OCO--,A.sup.1 and A.sup.2 each independently of one another are trans-1,4-cyclohexylene or unsubstituted or fluorine-substituted 1,4-phenylene, and one of the groups A.sup.1 and A.sup.2 can also be a single bond,X is --CN, halogen, OH, --COOR.sup.1, --OOCR.sup.1, --COR.sup.1, --OR.sup.1 or R.sup.1 andR.sup.1 is an alkyl group which has 1-12 C atoms and in which one or two CH.sub.2 groups can also be replaced by O, but excluding direct links between two O atoms,with the proviso that, in the case of X=CN, A.sup.2 is trans-1,4-cyclohexylene or fluorine-substituted, 1,4-phenylene, are suitable as components of liquid-crystalline phases.

Abstract: An electrophotographic photoconductor is disclosed which comprises an electroconductive support material and a photosensitive layer comprising at least one of the stilbene compounds of the formula ##STR1## wherein R.sup.1 represents hydrogen or ##STR2## R.sup.2 represents hydrogen, an alkyl group or a substituted or unsubstituted phenyl group; A represents ##STR3## when R.sup.1 is hydrogen; while, when R.sup.1 is ##STR4## A represents ##STR5## a 9-anthryl group or a substituted or unsubstituted N-alkylcarbazolyl group, wherein R.sup.3 represents hydrogen, an alkyl group, an alkoxy group, a halogen or a substituted amino group represented by ##STR6## in which R.sup.4 and R.sup.5 independently represent an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group, and R.sup.4 and R.sup.5 may form a ring in combination, and m is an integer of 0 through 3 and n is an integer of 0 or 1, provided that, when R.sup.1 is hydrogen and n=0, A is ##STR7## in which R.sup.

Abstract: A high temperature heat transfer and lubricating composition consisting of a mixture of (a) a mixture of mono-, di- and tribenzylated ethyl benzene and (b) a polyphenyl ether. The lubricant has a pour point of -40.degree. C. and does not degrade at temperatures of 300.degree. C. The lubricant is miscible in all proportions but the ratio of component (a) to component (b) is about 10 to 90:90 to 10.

Abstract: This invention describes a novel method of preparing metallocene compounds. The invention is based on synthesis of novel bis cyclopentadienides that, under appropriate conditions, will either encapsulate a transition metal to produce a metallocene such as ferrocene, or ferrocene derivative, or will yield a polymeric metallocene. Compounds produced by this process are useful as catalyst in propulsion systems, or as anti-knock compounds in gasolines.

Abstract: A method for producing p-isobutylstyrene which is characterized in that starting materials are inexpensive, processes are easy to be done and products are highly pure. The method comprises the step of catalytically cracking 1,1-bis(p-isobutylphenyl)ethane at temperatures in the range of 200.degree. to 650.degree. C. in the presence of a protonic acid catalyst and/or a solid acid catalyst to produce p-isobutylstyrene and isobutylbenzene, and at least a portion of said isobutylbenzene is recycled to produce said 1,1-bis(p-isobutylphenyl)ethane by reaction with acetaldehyde in the presence of sulfuric acid.

Abstract: 1-(3-Vinylphenyl)-1-phenylhydrocarbons and method for producing the same. The invention further relates to 1-(3-vinylphenyl)-1-phenylethane which is used for preparing the former compound. The 1-(3-vinylphenyl)-1-phenylethylene is used as a new intermediate for preparing .alpha.-(3-benzoylphenyl)propionic acid (tradename: ketoprofen) through .alpha.-3-(1-phenylethenyl)phenyl)propionic acid or its alkyl ester. The ketroprofen is a useful medicine for the relief of pain and inflammation.

Abstract: 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.

Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a minor amount, effective to inhibit the accumulation of black sludge in a gasoline fueled internal combustion engine, of an aliphatic hydrocarbon substituted aromatic hydrocarbon. The aliphatic hydrocarbon substituted aromatic hydrocarbon comprises a compound of the formulaAr--R--(Ar).sub.nwherein each Ar is independently an aromatic nucleus having from 0 to 3 substituents, R is a hydrocarbyl group, and n is an integer ranging from 1 to about 6. In a further embodiment, the aliphatic hydrocarbon substituted aromatic hydrocarbon further comprises from about 1 to about 50 percent by weight of tetrahydronaphthalene or hydrocarbyl substituted tetrahydronaphthalenes.

Abstract: 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--.

Abstract: The present invention is concerned with a novel intermediate 1,1-(3-ethylphenyl)phenylethylene represented by the formula (I) and its manufacturing method, and according to the present invention, Ketoprofen can be synthesized at a low cost and in a high yield.

Abstract: Compositions useful as pour point depressants, novel compounds within such compositions, and processes for making same, as well as lubricant oil compositions containing same, are disclosed. The novel compounds are encompassed by the general structural formula (I) ##STR1## wherein the Ar, Ar' and Ar" are independently an aromatic moiety containing 1 to 3 aromatic rings and each aromatic moiety is substituted with 0 to 3 substituents, (R) and (R') are independently an alkylene group containing about 1 to 100 carbon atoms with the proviso that at least one of (R) or (R') is CH.sub.2, and n is 0 to about 1000; with the proviso that if n is 0, then (R) is CH.sub.2 and each aromatic moiety is independently substituted with 0 to 3 substituents with one aromatic moiety having at least one substituent, the substituents being selected from the group consisting of a substituent derived from an olefin and a substituent derived from a chlorinated hydrocarbon.

Abstract: An electrical insulating oil composition which is excellent in low temperature characteristics and suitable for use in impregnating capacitors, and comprises (a) m-ethylbiphenyl, (b) p-ethylbiphenyl, (c) m-isopropylbiphenyl and (d) p-isopropylbiphenyl, and is characterized in that the total amount of the ethylbiphenyls is not less than 40% by weight and the proportion of solid phase in the composition at a temperature of -40.degree. C. is not more than 45% by weight, the solid quantity of each component being calculated according to the following equation of solid-liquid equilibrium: ##EQU1## wherein X.sub.1 is the equilibrium mole fraction of a component i in the liquid phase of the composition, .DELTA.H.sub.i.sup.f is the heat of fushion (cal.mol.sup.-1) of the component i, T.sub.i.sup.f is the melting point (K) of the component i, T is the temperature (K) of the system, and R is the gas constant (cal.mol.sup.-1.K.sup.-1).

Abstract: An electrical insulating oil which is suitable for use in impregnating electrical appliances such as capacitors, cables and transformers, especially those in which plastic materials are used partially or totally as dielectrics or insulating materials, and electrical appliances that are impregnated with the above electrical insulating oil. The electrical insulating oil of the invention contains at least one monoolefin and/or diolefin having three condensed or non-condensed aromatic rings.

Abstract: A liquid crystalline compound of the general formula ##STR1## wherein ##STR2## represents ##STR3## R and R', independently from each other, represent a linear alkyl group having 1 to 10 carbon atoms, an alkoxymethylene group whose alkoxy moiety has 1 to 10 carbon atoms, a cyano group or a halogen atom, and n and m, independently from each other, represent 0 or 1.