Additives for motor fuels
    1.
    发明专利

    公开(公告)号:GB851587A

    公开(公告)日:1960-10-19

    申请号:GB1531659

    申请日:1959-05-05

    Applicant: BASF AG

    Abstract: A gasoline composition contains an organometallic compound of formula Mea(R)x(CO)y where Me is chromium, molybdenum, manganese, iron, cobalt or nickel a is 1 to 4, R is an aromatic ligand, x is 0 to 5, and y is 0 to 9, both x and y not being zero at the same time, and as a stabilizer for the organo-metallic compound an artificially aged phenylene diamine of formula: where R and R1 are alkyl or aryl radicals having 3 to 7 carbon atoms. The phenylene diamine is artificially aged by exposure to light, or by oxidation with peroxides or oxygen, or by adding traces of metal, so that its solution in a liquid hydrocarbon has a colour which absorbs light rays of wavelengths of 350 to 550 millimicrons. The composition contains 0.01 to 0.3% by weight of the organo-metallic compound, and 0.001 to 0.3% by weight of the phenylene diamine, and may contain 0.001 to 0.2% by weight of an aliphatic long-chained fatty amine. In examples gasoline contains methylcyclopentadienyl manganese tricarbonyl, cyclopentadienyl manganese tricarbonyl, dimestiylene chromium, dicyclopentadienyl nickel and molybdenum hexacarbonyl; N,N1-di-secondary-butyl-p-phenylene diamine aged by exposure to sunlight and by treatment with reformed gasoline containing peroxides, N,N-1di-benzyl-p-phenylene diamine, N-butyl-N1-propyl phenylene diamine and N,N1-di-isobutyl-p-phenylene diamine, the last three being aged by exposure to sunlight; oleylamine and laurylamine, and red dyestuff. Lists of aromatic liquids which may be present in the organometallic compounds and suitable phenylene diamine derivatives, are given.

    Pigments which fluoresce in ultra-violet light

    公开(公告)号:GB1092689A

    公开(公告)日:1967-11-29

    申请号:GB1444666

    申请日:1966-04-01

    Applicant: BASF AG

    Abstract: A colourless pigment which fluoresces yellow in ultra-violet light comprises a colourless organic plastic and a b -aminophthaline having the general formula in which R1 denotes a hydrogen atom, a hydroxyl group or a methyl group and the radicals R2 and R3 denote hydrogen atoms or together denote one of the radicals and Organic plastic carriers may include polyvinyl chloride, polyacrylonitrile, polyacrylic esters or ureaformaldehyde or melamineformaldehyde resins. The fluorescent material may be made by condensing products of iminophthalimide with 2-methylpyridine, 2-methylquinoline or 2,6-dimethylquinoline. The concentration of b -quinophthalines in the whole mixture may be 0.1 to 3%, preferably 0.5 to 2% by weight. In an example a solution of one or more of the b -quinophthalines in a solvent miscible with water (e.g. dimethylformamide, N - methylpyrrolidone, tetrahydrofurane, or ethylene glycol monoethyl ether) may be added to an aqueous dispersion of the plastic. The mixture is then heated while stirring to approximately 85 DEG C., the pigment then being filtered off. To produce compositions which fluoresce in colours other than yellow, a small amount of a prior art substance, such as 4-aminonaphthalic acid n-butylimide, which fluoresces in another colour may be added to the plastic and b -quinophthaline. Reference is made to known pigments consisting of a mixture of polyvinyl chloride and 9,10-dichloroanthracene or di-hydroxyterephthalic esters and also the pigment o-hydroxybenzaldazine. The pigments can be used as marking inks, for warning signs and traffic signs, or for articles to be sorted automatically.

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