Abstract: 4,4'-bis-(4-aminophenoxy)-diphenyl sulfone (BAPS) has been prepared from 4-aminophenol and a 4,4'-dihalodiphenyl sulfone in an organic solvent in the presence of an inorganic carbonate in a one-stage reaction, a pure product having a high melting point being obtained.

Abstract: The invention provides a novel class of propargyl compounds represented by the formula: ##STR1## wherein R is an C.sub.1 -C.sub.20 alkyl group, C.sub.1 -C.sub.20 alkylene group, C.sub.1 -C.sub.20 alkylene group interrupted by --NH-- group(s), C.sub.6 -C.sub.7 alicyclic group and an aromatic group; R.sub.1 comprises 1-100% --CH.sub.2 --C.tbd.CH group and 99-0% hydrogen atom and n is an integer of 1 to 4, and preparation thereof.These compounds are useful as coating material or sealer or rim-injection molding material.

Abstract: Aromatic diamines, such as toluenediamine, are alkylated in the ortho position by heating the diamine in the presence of an aluminum alloy, aluminium chloride and, optionally, zinc, and then reacting with an alkene at elevated temperatures and pressures.

Abstract: High purity 4,4'-bis(4-aminophenoxy)diphenyl sulfone is prepared from p-aminophenol, alkali metal hydroxide and 4,4'-dihalodiphenyl sulfone by using a molar ratio of alkali metal hydroxide: 4-aminophenol in the range of 1.0-1.1:1.0 and a molar ratio of 4-aminophenol: 4,4'-dihalodiphenyl sulfone in the range of 2.005-2.05:1.0 and by using a dialkylamide or N-alkyl lactam as a solvent. Pristine products (no-recrystallization) of 99.0% purity having melting points above 195.degree. C. are obtained.

Abstract: This invention concerns a process for preparing diketones and keto-acids by reacting a dicarboxylic acid and an aromatic compound in the presence of an alkylsulfonic acid such as methanesulfonic acid and an organic anhydride compound such as methanesulfonic anhydride or trifluoroacetic anhydride. The diketones and keto-acids can be used to prepare polyketones which are useful as molding plastics, coatings, films, fibers, and the like.

Abstract: Described herein is an isocyanate-reactive compound containing at least one linkage of the formula:--X--X--wherein X is independently in each occurrence --NR--, --S--, or --O--; R is independently in each occurrence hydrogen, C.sub.1-10 alkyl, aryl, or arylene; and at least one N, S, or O atom of the above formula is bonded to an aryl or arylene group. Also disclosed are isocyanate-reactive compositions containing the above compound and flexible polyurethane foams prepared therefrom.

Abstract: The novel compounds of the general formula I ##STR1## where X is straight-chain or branched alkanediyl having from 1 to 20 carbon atoms orX is straight-chain or branched alkanediyl having from 2 to 20 carbon atoms, whose carbon chain is interrupted by --O--, --S-- and/or --NR--,R is hydrogen, straight-chain or branched alkyl having from 1 to 6 carbon atoms or cycloalkyl, andY is a non-centrosymmetric radical containing an easily polarized conjugated .pi.-electron system and at least one terminal electron-acceptor group,having nonlinear optical properties, are highly suitable as nonlinear optical materials for nonlinear optical arrangements and for the preparation of polymers having nonlinear optical properties. In particular, they can be used to prepare organopolysiloxanes having nonlinear optical properties and containing side groups of the general formula Ia ##STR2## in which the variables are as defined above.

Abstract: 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.

Abstract: A novel diamino compound and a dinitro compound and a diol compound as its derivatives are provided,which diamino compound is useful as a raw material for polyimide compounds for an aligning film in a liquid crystal display element exhibiting a high pretilt angle, and expressed by the formula ##STR1## wherein R.sub.1 to R.sub.6 each are H or 1-22C alkyl and may be the same as or different from one another, and R.sub.7 to R.sub.14 each are H or 1-3C alkyl and may be the same as or different from one another.

Abstract: (Hydrocarbylthio)aromatic amines are prepared by reacting an aromatic amine, such as an aminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of iodine, iodine monochloride, or iodine monobromide as a catalyst.

Abstract: A hydroxy arylamine compound is disclosed represented by the formula: ##STR1## wherein: m is 0 or 1,Z is selected from the group consisting of: ##STR2## n is 0 or 1, Ar is selected from the group consisting of: ##STR3## R is selected from the group consisting of --CH.sub.3, --CH.sub.2 H.sub.5, --C.sub.3 H.sub.7, and --C.sub.4 H.sub.9,Ar' is selected from the group consisting of: ##STR4## X is selected from the group consisting of: ##STR5## s is 0, 1 or 2, the dihydroxy arylamine compound being free of any direct conjugation between the --OH groups and the nearest nitrogen atom through one or more aromatic rings. The dihydroxy arylamine compound may be employed in an electrophotographic imaging member and the member may be used in an electrophotographic imaging process.

Abstract: The present invention relates to a process for producing an alkoxybenzene compound or an aryloxybenzene compound by reacting a halogenobenzene compound with an alcohol or a phenol compound in the presence of copper or a copper compound, an amine, and a base. According to the disclosure, an alkoxybenzene compound and an aryloxybenzene compound can be produced under moderate conditions in good yield with high selectivity.

Abstract: High temperature polymeric materials, which are easily process into void-free components, are needed for use in composites for advanced aerospace applications. These materials could bridge the gap between currently-used polymeric materials and ceramics or metal. Phthalonitrile resins can be used as high temperature polymeric material and 1,3-bis(3-aminophenoxy)benzene can be used as a curing agent to reduce voids and benzene can be used as a curing agent to reduce voids and blisters formed from volatiles during polymerization.

Abstract: N,N'-dimethyl aromatic diamines are prepared from the corresponding diprimary amines via a two step synthesis forming first the corresponding di-succinylimidomethylamine and then reductively cleaving the succinylimido group. The products are useful, e.g., as epoxy curing agents.

Abstract: Compounds of the formula (1) ##STR1## in which X denotes a sulfur atom or the group ##STR2## in which R denotes a hydrogen atom, an alkylene-C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 - or alkyl-C.sub.1 -C.sub.6 - group, each of which can be substituted by hydroxyl, sulfo, carboxyl or cyano groups, R.sub.1 denotes a hydrogen atom or an alkyl-C.sub.1 -C.sub.6 -group which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), hydroxyl, amino, methylamino, acetylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino, methoxy, ethoxy, .beta.-hydroxyethylsulfonyl, phenyl, monosulfophenyl, disulfophenyl, or 4-[.beta.-hydroxyethylsulfonyl]-2-sulfophenyl groups, or represents a phenyl or naphthyl group, each of which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), alkyl-C.sub.1 -C.sub.4 -, alkoxy-C.sub.1 -C.sub.4 -, amino, methylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino or acetylamino groups, and R.sub.

Abstract: An antifungal or anthelmintic method of treatment is disclosed which comprises the step of administering to a mammal in need of said treatment, a pharmaceutically effective amount of a compound of the Formula (I) ##STR1## wherein X is halogen, C.sub.1 to C.sub.6 alkoxy, or a group --NRR.sup.1 in which R and R.sup.1 are each hydrogen or C.sub.1 to C.sub.6 alkyl; andR.sup.2 is hydrogen, halogen, C.sub.1 to C.sub.6 alkyl, C.sub.1 to C.sub.6 alkoxy, phenyl, phenylthio, or phenyl or phenylthio substituted by at least one halogen or amino substituent; or a pharmaceutically acceptable acid addition salt thereof.

Abstract: 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.

Abstract: The invention relates to a new process for the preparation of nitraminodiaryl sulfoxide derivatives of the formula (I), ##STR1## wherein R and R.sup.1 represent hydrogen or alkyl having from 1 to 6 carbon atoms, andR.sup.2 is hydrogen, halogen, alkyl having from 1 to 6 carbon atoms, alkoxy having from 1 to 6 carbon atoms, or phenyl or thiophenyl both optionally substituted by one or more identical or different halogen(s) and/or nitro group(s).The compounds of formula (I) are pharmaceutically active, and are particularly useful in the veterinary therapy as anthelmintics. In addition they show pesticidal, particularly acaricidal, fungicidal and herbicidal properties. The invention relates also to pharmaceutical and pesticidal compositions containing as active ingredient compounds of formula (I).The compounds of formula (I), in which the substituents are as defined, with the proviso that if R.sup.2 is hydrogen and the substituent --N(R,R.sup.1) is in para-position related to the sulfoxide group, R and R.sup.

Abstract: The herbicidal 4-trifluoromethyl-3'-substituted amino-4'-nitro diphenyl ethers comprise a class of compounds that are highly effective herbicides.

Abstract: Disclosed are phenol derivatives of the formula ##STR1## wherein R.sup.1 is a substituted phenyl group, R.sup.2 and R.sup.3 are C.sub.1 -C.sub.6 alkyl group and of the formula ##STR2## wherein R.sup.8, R.sup.9 and R.sup.10 are C.sub.1 -C.sub.6 alkyl and the like and A is H, C.sub.1 -C.sub.6 alkylsulfonyl and the like substituents. These compounds and some related compounds have anti-inflammatory activity and lipoxygenase inhibitory activity.

Abstract: Precursors for the preparation of fiber-reactive triphendioxazine dyestuffs correspond to the general formulas: ##STR1## in which Y' is a vinyl, a beta-hydroxyethyl or an ethyl group which contains in the beta-position a substituent which can be eliminated by an alkali;T is an optionally substituted alkyl (e.g.

Abstract: Novel substituted aryloxyphenyl-thioureas, -isothioureas and -carbodiimides of formula I ##STR1## in which R.sub.1 represents C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkyl mono- or poly-substituted by halogen and/or by C.sub.1 -C.sub.6 alkoxy, C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.8 cycloalkyl mono- or poly-substituted by C.sub.1 -C.sub.3 alkyl, or C.sub.3 -C.sub.8 cycloalkyl-C.sub.1 -C.sub.4 alkyl;R.sub.2 represents hydroben or C.sub.1 -C.sub.5 alkyl;R.sub.3 represents a C.sub.1 -C.sub.5 alkyl or C.sub.5 -C.sub.6 cycloalkyl;R.sub.4 represents hydrogen or methyl;R.sub.5 represents a --CH.dbd.CH--.sub.2, --CH.sub.2 --.sub.3 or --CH.sub.2 --.sub.4 bridge in the 2,3- or 3,4-position;Z represents --NH--CS--NH--, --N.dbd.C(SR.sub.6)--NH-- or --N.dbd.C.dbd.N-- andR.sub.6 represents C.sub.1 -C.sub.

Abstract: ar-(Hydrocarbylthio)aromatic amines, such as (alkylthio) anilines, are prepared by heating one or more other ar-(hydrocarbylthio)aromatic amines in the presence of a catalyst, such as aluminum chloride, to redistribute the hydrocarbylthio groups with little or no co-formation of secondary or tertiary amines. The amine starting material is one or more primary aromatic amines having at least one free ring position and at least one hydrocarbylthio substituent in a ring position other than a meta-position.

Abstract: This invention relates to flexible copper-clad circuit substrates where copper foil is directly and firmly jointed with a polyimide film.Polyimide used is obtained conventionally by reacting diamine components including 3,3'-diaminobenzophenone, 1,3-bis(3-aminophenoxy)-bezene, 4,4'-bis(3-aminophenoxy)biphenyl, 2,2-bis[4-(3-aminophenoxy)-phenyl]propane, 2,2-bis[4-(3-aminophenoxy)phenyl]-1,1,1,3,3,3-hexafluoropropane, bis[4(3-aminophenoxy)phenyl] sulfide, bis[4-(3-aminophenoxy)phenyl] ketone and bis[4-(3-aminophenoxy)phenyl] sulfone, with tetracarboxylic acid dianhydride including pyromellitic dianhydride, 3,3',4,4'-benzophenone tetracarboxylic dianhydride, 3,3',4,4'-biphenyl tetracarboxylic dianhydride and bis(3,4-dicarboxyphenyl) ether dianhydride, in organic solvent, and by thermally or chemically imidizing resultant polyamic acid.Polyimide thus obtained has relatively lower melt viscosity and is flowable at high temperatures.

Abstract: New chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions.The invention relates to the compounds of formula: ##STR1## in which Z and Z' denote, independently of one another, an alkyl radical having from 1 to 4 carbon atoms or a hydroxyalkyl radical having from 2 to 4 carbon atoms, andR.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or a mono- or polyhydroxyalkyl radical having 2 or 3 carbon atoms, to their addition salts with an acid, and to their use by way of couplers for the oxidation dyeing of keratinous fibres, especially human hair.These compounds, when they are combined with paraphenylenediamines, surprisingly give beige to light brown hues or purple hues of greater or lesser redness, depending on the substitution of the 5-amino group of the chlorobenzene.

Abstract: Oxybisaniline is prepared in high yield by reacting a hydroxylamine with a polycarboxylic diphenyl ether in the presence of an inorganic acid. The acid groups are directly converted to amine groups. By-products of the reaction are negligible.

Abstract: Novel sulfur containing polyarylene polyether oligomers are disclosed. The oligomers are prepared through condensing salts of hydroxy and/or thio aromatic compounds, halobenzenoid compounds bearing two replaceable halogens and metal or ammonium sulfides following by end capping the resultant oligomer intermediate with a salt of a hydroxy and/or thio aromatic compound.

Abstract: The invention relates to a new process for the preparation of aminodiaryl sulfoxide derivatives of the formula (I), ##STR1## wherein X is halogen, alkoxy having from 1 to 6 carbon atoms or a group --(N,R,R.sup.1), in which p1 R and R.sup.1 are hydrogen or alkyl having from 1 to 6 carbon atoms,R.sup.2 is hydrogen, halogen, alkyl having from 1 to 6 carbon atoms, alkoxy having from 1 to 6 carbon atoms or phenyl or phenylthio both optionally substituted by one or more identical or different halogen(s) and/or amino group(s),and acid addition salts thereof.The compounds of formula (I) are pharmaceutically active, in particular are potent anthelmintics, or can be used as active ingredients in pesticidal compositions. The invention therefore relates to pharmaceutical and pesticidal compositions containing compounds of formula (I) or salts thereof as active ingredient.Compounds of formula (I), in which the substituents are as defined above, but if X stands for a group --N(R,R.sup.1) in which R and R.sup.

Abstract: A Lewis acid contaminant is removed from a (hydrocarbylthio)aromatic amine by mixing a solid alkali metal hydroxide with a solution of the Lewis acid in the amine, preferably at about 110.degree.-120.degree. C., and then filtering the solids from the mixture.

Abstract: Novel fluorophenoxyphenoxypropionates and derivatives thereof possess herbicidal activity selectively in the presence of broadleaf crops. Preemergent and postemergent applications are contemplated.

Abstract: A method for preparing aryl sulfides by heating an iodoaromatic compound with elemental sulfur at a temperature above about 150.degree. C.

Abstract: Compounds of the formula ##STR1## wherein X is oxy, thio, sulfinyl or sulfonyl;R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy; difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl, trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl with the proviso that R.sup.1 and R.sup.3 are not both phenyl or substituted phenyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.6 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, or phenyl;R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.

Abstract: Compounds of the formula ##STR1## wherein R is halogen; C.sub.1 -C.sub.2 alkyl; C.sub.1 -C.sub.2 alkoxy; trifluoromethoxy; difluoromethoxy; nitro; cyano; C.sub.1 -C.sub.2 haloalkyl; R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl; trifluoromethyl or difluoromethyl;R.sup.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, halogen, phenyl or substituted phenyl;R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; orR.sup.1 and R.sup.2 together are C.sub.2 -C.sub.5 alkylene;R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, phenyl or substituted phenyl, with the proviso that R.sup.1 and R.sup.3 are not both phenyl or substituted phenyl;R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.5 is hydrogen, halogen or C.sub.1 -C.sub.4 alkyl;R.sup.6 is halogen, cyano, nitro, trifluoromethyl, --C(O)--OR.sup.f wherein R.sup.f is C.sub.1 -C.sub.4 alkyl, or --C(O)NR.sub.2.sup.b wherein R.sup.b is hydrogen or C.sub.1 -C.sub.2 alkyl;R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.

Abstract: In preparing a diarylsulfone by condensing sulfuric acid or an aromatic sulfonic acid with an aromatic compound having at least one replaceable hydrogen atom on the aromatic ring, the process of the present invention is characterized in that the condensation reaction is carried out in the presence of at least one catalyst selected from the group consisting of a tungstic acid, molybdic acid and heteropoly acid thereof.

Abstract: Styryl derivatives of the formula ##STR1## and an electrophotographic photoconductor comprising an electroconductive support material and a photosensitive layer comprising at least one styryl derivative of the same formula are disclosed, in which R.sup.1 is selected from the group consisting of an alkyl group, a substituted alkyl group, an aryl group and substituted aryl group; R.sup.2 is selected from the group consisting of hydrogen, an alkyl group, a substituted alkyl group, an aryl group and a substituted aryl group; and Ar represents an aryl group or a substituted aryl group.

Abstract: The synthesis and characterization of several polyenamine ketones are discussed wherein conjugated diacetylenic diketones and aromatic diamines are used as a route to the formation of high molecular weight polyenamine ketones which exhibit good mechanical properties and can be cast into creasible films. Typical polymerization conditions involved the reaction of stoichiometric amounts of 1,4- or 1,3-PPPO and a diamine at 60.degree.-130.degree. C. in m-cresol at (w/w) solids content of 8-26% for a specified period of time under a nitrogen atmosphere. Novel polyenamine ketones were prepared with inherent viscosities as high as 1.99 dl/g and tough, clear amber films with tensile strengths of 12,400 psi and tensile moduli of 397,000 psi were cast from solutions of the polymers in chloroform. The polymers exhibited T.sub.g s as high as 235.degree. C. and weight losses of 14% after aging at 232.degree. C. in circulating air for sixty hours.

Abstract: Secondary amine-terminated aromatic oligomers are prepared by conventional reactions for the formation of such polymers as polyimides, polyethersulfones and polyetherketones, using such compounds as methylamino or phenylamino anilines or phenols as endcapping agents. The secondary amine-terminated oligomers may be reacted with cyclic polycarbonate oligomers to prepare copolyurethanecarbonates which are useful as engineering thermoplastics.

Abstract: A compound of the formula ##STR1## wherein R is halogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, nitro; cyano; C.sub.1 -C.sub.2 haloalkyl, or R.sup.a SO.sub.n -- wherein n is 0 or 2 and R.sup.a is C.sub.1 -C.sub.2 alkyl; R.sup.1 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.1 and R.sup.2 together are alkylene having 2 to 5 carbon atoms; R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.3 and R.sup.4 can be oxo; R.sup.5 is hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; or R.sup.5 and R.sup.6 together are alkylene having 2 to 5 carbon atoms; and R.sup.7 and R.sup.8 independently are (1) hydrogen; (2) halogen; (3) C.sub.1 -C.sub.4 alkyl; (4) C.sub.1 -C.sub.4 alkoxy; (5) trifluoromethoxy; (6) cyano; (7) nitro; (8) C.sub.1 -C.sub.4 haloalkyl; (9) R.sup.b SO.sub.n -- wherein n is the integer 0, 1 or 2; and R.sup.b is (a) C.sub.1 -C.sub.4 alkyl; (b) C.sub.1 -C.sub.

Abstract: 1,3-Bis(3-aminophenoxy)-5-halogenobenzenes represented by the formula (I): ##STR1## wherein X is a chlorine or bromine atom, are novel compounds and can be prepared by reacting trihalogenobenzenes represented by the formula (II): ##STR2## wherein X.sub.1, X.sub.2 and X.sub.3 are each a chlorine or bromine atom, with 3-aminophenol in the presence of a dehydrohalogenating agent.

Abstract: (Hydrocarbylthio)aromatic amines are prepared by reacting an aromatic amine, such as an aminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of a metal or metal halide catalyst and iodine as a promoter.

Abstract: Novel intermediates useful in the preparation of fluorophenoxyphenoxypropionates and derivatives thereof which possess herbicidal activity selectively in the presence of broadleaf crops.

Abstract: Diamines of the structure ##STR1## Wherein X is --SO.sub.2 -- or --CO--, Y is O or S, and Ar is a linear aryl ether moiety comprising from 1 to 80 aryl rings, are epoxy resin curing agents providing cured resins with improved moisture resistance and toughness. The resins are particularly useful in preparing prepregs and composites.

Abstract: A (hydrocarbylthio)aromatic amine, such as a methylthiosubstituted toluenediamine, is separated from corresponding aromatic amines containing fewer hydrocarbylthio groups by washing an organic solution of the amine mixture with a dilute aqueous acid having a pKa value below 7 to extract at least a portion of the corresponding aromatic amines.

Abstract: Bis(haloacylaromatic) compounds have been made by a new process in which monohaloacylated aromatic compounds have been reacted by a coupling reaction. These bis(haloacylaromatic) compounds can be employed as monomers in the preparation of polyesters and polyamides which have easy processability. The monohaloacylated compound is coupled by reacting two moles of the monomer with a carbon or sulfur compound containing at least two halogen atoms in the presence of a Friedel-Crafts catalyst.

Abstract: Nitro-isopropenyldiphenyl ethers are provided which can serve as a useful source of known monomer intermediates or as intermediates for the preparation of nitro-haloisopropyl substituted diphenyl ethers. The latter have been discovered to act as facile alkylating agents with phenols providing nitro-p-hydroxyphenylisopropyl substituted diphenyl ethers. When the latter compounds are reduced there are obtained the corresponding amino-p-hydroxyphenylisopropyl substituted diphenyl ethers.The polymerization of this last class of compounds with acid halides provides polyamide-esters. The polymers can be used in the manufacture of such articles as tubing, hose, bellows hose, and the like.

Abstract: Thiobisphenols, such as 2,2-bis[2,2-bis(4-hydroxyphenyl)propane]-sulfide are provided by effecting reaction betwen a dihydric phenol such as bisphenol-A and sulfur dichloride in the presence of an effective amount of a Lewis acid catalyst and organic solvent.

Abstract: A novel series of polymers and copolymers based on a polyimide backbone with the incorporation of carbonate moieties along the backbone. The process for preparing these polymers and copolymers is also disclosed as is a novel series of dinitrodiphenyl carbonates and diaminodiphenyl carbonates. The novel polymers and copolymers exhibit high temperature capability and because of the carbonate unit, many exhibit a high degree of order and/or crystallinity.

Abstract: Compounds of formula: ##STR1## and oxidation hair dye compositions containing the same; also includes a process for dyeing hair with such compositions; Ar being an aryl radical.

Abstract: There are provided substituted p-phenylene diamines of the formula ##STR1## wherein Ar is phenyl or phenoxyphenyl.

Abstract: New chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions.The invention relates to the compounds of formula: ##STR1## in which Z and Z' denote, independently of one another, an alkyl radical having from 1 to 4 carbon atoms or a hydroxyalkyl radical having from 2 to 4 carbon atoms, andR.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or a mono- or polyhydroxyalkyl radical having 2 or 3 carbon atoms, to their addition salts with an acid, and to their use by way of couplers for the oxidation dyeing of keratinous fibres, especially human hair.These compounds, when they are combined with paraphenylenediamines, surprisingly give beige to light brown hues or purple hues of greater of lesser redness, depending on the substitution of the 5-amino group of the chlorobenzene.