Abstract: Compounds of the formula ##SPC1##WhereinA is 1,4-naphthylene, substituted 1,4-naphthylene, 1,4-(5,6,7,8-tetrahydronaphthylene) or substituted 1,4-(5,6,7,8-tetrahydronaphthylene), wherein each substituent of substituted 1,4-naphthylene and substituted 1,4-(5,6,7,8-tetrahydronaphthylene) is independently lower alkyl, lower alkoxy or halo,D is sulfophenyl or substituted sulfophenyl wherein each substituent is independently lower alkyl, lower alkoxy, nitro or halo,Each R is independently lower alkyl, andn is 0 to 2,And mixtures thereof, are useful for dyeing and printing natural polyamides such as wool and silk, synthetic polyamides such as nylon, polyacrylonitrile, acrylonitrile copolymers and polyvinyl alcohol on which they build-up well. The dyeings are fast to light and wet treatments.

Abstract: The invention concerns novel unsaturated fatty acids useful as inhibitors of prostoglandin synthetase.

Abstract: The present invention relates to methods of dyeing and printing of textile materials and specifically to the use of fixing agents in such methods. In particular, the present invention relates to the use of aromatic carboxylic acid esters and amides as fixing agents in the dyeing and printing of textile materials.

Abstract: The invention provides novel cyclic acetals and mercaptals useful as stabilising agents for organic susceptible to degradation by heat or oxygen.

Abstract: New stilbene derivatives of formula: ##SPC1##In whichR.sub.1 signifies a hydrogen or halogen atom, or a lower alkyl group;R.sub.2 signifies a hydrogen atom; a cycloalkyl group which is unsubstituted or substituted by one or more lower alkyl groups; or a lower alkyl group which is unsubstituted or substituted by a hydroxyl, lower alkoxy or hydroxysubstituted lower alkoxy group or by a radical of formula (a); ##SPC2##M signifies a hydrogen atom or an equivalent of a colourless cation;n signifies 1 or 2; Alkylene signifies C.sub.1.sub.-8 alkylene;And the rings A and B are unsubstituted or substituted by one or more substituents selected from halogen atoms and lower alkyl, lower alkoxy, cyano and SO.sub.3 M groups;The compound containing at least six SO.sub.3 M groups per molecule, are useful as optical brighteners. They are produced by successive condensation of each of the three amino-containing moieties around the triazine nucleus, as an amine, with a cyanuro halide.

Abstract: The invention relates to compounds of formula I, ##SPC1##in which either, each ofR.sub.1 and R.sub.2, which may be the same or different, signifies a hydrogen atom or an unsubstituted or substituted (C.sub.1.sub.-7) alkyl or (C.sub.2.sub.-7) alkenyl radical, with the proviso that that when one of R.sub.1 and R.sub.2 signifies a hydrogen atom, the other has a significance other than hydrogen, orR.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, from a five or six-membered substituted or unsubstituted heterocyclic ring system,R.sub.3 signifies a hydrogen atom or an unsubsstituted (C.sub.1.sub.-7) alkyl radical,R.sub.

Abstract: Disclosed are compounds of formula I ##SPC1##in which n signifies 2 or 3,Their production and use as optical brighteners, particularly for polymeric and textile substrates.

Abstract: The present invention provides novel compounds of the formula: ##SPC1##In whichR.sub.1 signifies hydrogen, fluorine or chlorine atom, a carboxylic or sulphonic acid group or an amide or ester thereof, a cyano group or an alkylsulphonyl or arylsulphonyl group,R.sub.2 signifies a hydrogen, fluorine or chlorine atom, a cyano group, a phenyl or alkyl radical which may be substituted, a carboxylic or sulphonic acid group or an amide or ester thereof, an alkylsulphonyl or arylsulphonyl group or a benzoxazole group which may be substituted,R.sub.3 and R.sub.4 independently signify a hydrogen, fluorine or chlorine atom, an alkyl radical of 1 to 6 carbon atoms which may be substituted, a cyano or carboxy group, a carboxylic acid amide or ester group, and R.sub.

Abstract: The invention relates to optical brightening agents.

Abstract: The invention concerns a novel process for the production of benzidine compounds having at least one nuclear sulphonic acid group, comprising reacting a nitro- or nitroso-benzene with an aniline or mono-N-alkyl aniline, reducing the reaction product to a hydrazo compound and rearranging this to the benzidine compound.

Abstract: The present invention concerns benzophenone compounds of the formula: ##SPC1##WhereinR.sub.1, r.sub.2, r.sub.3 and R.sub.4 are hydrogen or substituents, e.g. alkyl,X is a mono-, di- or trivalent radical andn is an integer 1, 2 or 3.The compounds are useful as U.V. stabilizers for, for example, plastics materials.

Abstract: The present invention concerns benzothiophene acyl (2) derivatives of the formula, ##SPC1##Wherein R.sub.1, R.sub.2 and R are substituents and n is an integer 1 or 2.The compounds are useful as u.v. stabilizers for, e.g. plastic materials.

Abstract: Azo dyes of the formula ##SPC1##WhereX stands for the radical of a coupling component of the aminobenzene, hydroxybenzene, aminonaphthalene, hydroxynaphthalene or heterocyclic series or one with a coupling methylene group,A.sub.n .sup.- for an anion equivalent to K.sub.n .sup.+,n for 1 to 6,K.sup.+ for the group ##EQU1## and where the aromatic rings B and/or D may be further substituted. The dyes are useful for dyeing and printing paper (e.g., dyeing in the stock). The dyed paper is fast to light and wet treatments and has good fastness to bleaching, water, alcohol and light.

Abstract: The present invention concerns novel compounds of the formula: ##EQU1## wherein R.sub.2 to R.sub.9 have various significances including e.g. alkyl, X and Y include O and S and s, v, w and z are 0 or whole numbers, Ar.sub.1 is ##SPC1##And R.sub.1 is cycloalkyl or ##SPC2##The compounds possess insecticidal properties.

Abstract: The invention concerns novel combinations of active agents a) 1-methyl-2-[2-(.alpha.-methyl-p-chlorodiphenylmethyloxy)ethyl]pyrrolidine and b) a non-toxic sympathicomimetic agent having a peripheral vasoconstrictive effect, useful in the treatment of rhinitis.

Abstract: Disclosed are pigments of formula I ##SPC1##in whichThe R.sub.1 's, independently, each signify hydrogen, halogen, nitro, cyano, methyl, alkoxy, aminocarbonyl, alkylcarbonylamino, benzoylamino, phenylaminocarbonyl, alkylamino or phenylamino,The R.sub.2 's, independently, each signify hydrogen, halogen or methyl,The R.sub.3 's, independently, signify hydrogen or halogen, andR.sub.4 signifies a direct bond or a group --R.sub.5 --NH--, in which the imino group is bound to nucleus A, and R.sub.5 signifies a 1,3- or 1,4-phenylene radical, unsubstituted or substituted by up to two substituents selected from halogen, methyl, alkoxy and nitro; or a radical ##SPC2##in which X signifies a direct bond, --O--, --SO.sub.2 --, --N=N-- or --NHCO-- and rings B and C are unsubstituted or substituted by up to two substituents selected from halogen, methyl, alkoxy and nitro,And their use in pigmenting synthetic plastics and resins and paper and as colorants in surface coating media such as paints, lacquers and printing inks.

Abstract: The present invention concerns unsaturated ethers or thioethers of the formula: ##EQU1## wherein R.sub.1 is an aliphatic or alicyclic hydrocarbon, R.sub.2 and R.sub.3 are H or alkyl, Y is cyano, amido, a ketone or an acid esters, ##EQU2## is an ether, thioether or a saturated or unsaturated c--c bond and n is an integer, which exhibit insecticidal properties.

Abstract: The present invention concerns novel 4-hydroxypyrimidine derivatives of the formula: ##SPC1##Wherein R.sub.1 is a substituent, e.g., alkyl, R.sub.2 is hydrogen or a substituent, e.g., alkyl R.sub.3 is amino unsubstituted or substituted by alkyl, a nitrogen heterocycle, alkoxy or alkylthio, which are used as intermediates in the production of useful insecticides.

Abstract: The present invention relates to naphthoquinone derivatives of formula I, ##SPC1##in whichR.sub.1 signifies a halogen atom, a nitro group or an unsubstituted or substituted alkoxy or amino group,R.sub.2 signifies the atoms necessary to form an unsaturated ring system, which ring system has 1 or 2 nuclei and is unsubstituted or substituted,R.sub.3 signifies an unsubstituted or substituted s-triazinyl or pyrimidyl radical, andn is 0, 1 or 2,Which compounds are free from sulphonic acid groups are useful as pigments or disperse dyes.

Abstract: The present invention concerns a novel process for the production of an aminoanthraquinone, which comprises catalytically hydrogenating the corresponding nitroanthraquinone in an organic solvent. Aminoanthraquinones are known and are useful as intermediates in the production of anthraquinone dyestuffs.