11.
    发明专利
    未知

    公开(公告)号:DE4211140A1

    公开(公告)日:1993-10-07

    申请号:DE4211140

    申请日:1992-04-03

    Applicant: BASF AG

    Abstract: Phosphonium salts of formula (I) in which: R to R are C1 to C18 alkyl which may be substituted by carboxyl groups or C1 to C4 alkoxycarbonyl groups or cyano groups, C2 to C12 alkenyl, C2 to C12 alkinyl, C5 to C8 cycloalkyl, C7 to C12 phenylalkyl, phenyl which may be substitued by one or two C1 to C4 alkyl radicals, C1 to C4 alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C1 to C4 alkoxy carbonyl groups, or mono or di(C1 to C4 alkyl)amino; R and R are hydrogen or C1 to C4 alkyl; A is hydrogen or a group of the formula -OCO-H, -CO-R , -CO-OH, -CO-OR , -CO-CH2-CO-OR , -O-CO-H, O-CO-R , -OR , -SO2-R , -SO2-OH, -SO2-OR , -PO(OH)2, PO(OH)(OR ), -PO(OR )2, -OPO(OH)2, -OPO(OH)(OR ) or -OPO(OR )2; where R is C1 to C12 alkyl, C2 to C12 alkenyl, C2 to C12 alkinyl, C5 to C8 cycloalkyl, C7 to C12 phenylalkyl or phenyl which may be substituted by one or two C1 to C4 alkyl radicals, C1 to C4 alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C1 to C4 alkoxy carbonyl groups; Y stands for the group -CH=CH- or -C=C-; m is a number from 0 to 10; n is a number from 1 to 4; p is 0 or 1; and q is a number from 0 to 10; and X- is an n-valent inorganic or organic anion improving water solubility. The phosphonium salts I are suitable as brighteners for aqueous-acid galvanic nickel baths.

    12.
    发明专利
    未知

    公开(公告)号:DE4119341A1

    公开(公告)日:1992-12-17

    申请号:DE4119341

    申请日:1991-06-12

    Applicant: BASF AG

    Abstract: The invention relates to the production of bright zinc-plated or zinc-alloy-plated shaped parts by the electrolytic desposition or zinc or a zinc alloy from an acidic aqueous galvanic bath containing as its essential components one or more zinc salts and optionally salts of other alloy metals, one or more conducting salts, one or more surface-active agents and one or more brighteners. Used as brighteners are compounds of the formula (I), in which R is a C1-C8 alkoxy, phenoxy, benzyloxy, amino, C1-C6 alkylamino or di(C1-C6) alkylamino group; R is a C1-C4 alkyl, phenyl or benzyl group or one of the groups given for R ; Ar is a phenyl or naphthyl group which may be substituted by one to three C1-C4 alkyl or C1-C4 alkoxy groups.

    13.
    发明专利
    未知

    公开(公告)号:DE59504247D1

    公开(公告)日:1998-12-24

    申请号:DE59504247

    申请日:1995-04-27

    Applicant: BASF AG

    Abstract: Electrostatic toner contains a polymeric binder and, as charge stabiliser, a phenylacyl cpd. of formula (I): Het (+) - L - CD - Phe-R An (-) (I); Het (+) = a positively charged gp. derived from an heterocycle of the pyrazole, imidazole, pyridine, (iso)quinoline series; L = 1-8C alkylene; Phe = phenylene, opt. with an annelated benzene ring; R = H, OH, 1-4C alkoxy, NH2, 1-4C mono- or dialkylamino or an opt. substd. 1-6C alkyl, phenyl, phenoxy, mono- or diphenylamino or N-(1-4C alkyl)-N-phenyl-amino gp.; and An (-) = the equiv. of an anion. Also claimed is the use of (I) as charge stabiliser in electrostatic toners.

    Aryl-methylidene acyl-acetic or malonic ester prepn.

    公开(公告)号:DE4446347A1

    公开(公告)日:1996-06-27

    申请号:DE4446347

    申请日:1994-12-23

    Applicant: BASF AG

    Abstract: Prepn. of 2-(benzylidene or naphthylidene) acylacetic or malonic acid esters or amides of formula Ar-CH=C(COR )(COR ) (I) involves reacting an aromatic aldehyde of formula ArCHO (II) with an active methylene cpd. of formula CH2(COR )(COR ) (III). In the formulae, Ar = phenyl or naphthyl (both opt. substd. by 1-3 or 1-4C alkyl, 1-4C alkoxy and OH); R = 1-8C alkoxy, phenoxy, benzyloxy or -NR R ; R ,R = H or 1-6C alkyl; R = 1-4C alkyl, phenyl, benzyl or as R . The novelty is that the reaction mixt., at the end of the reaction, is washed with aq. alkali metal (hydrogen) sulphite soln. to remove residual, unconverted (II). Pref. the organic solvent in the organic phase obtd. after the (bi)sulphite wash is distilled off to give a technical prod. contg. (I). The use of this technical prod. as brightener is claimed. Preferably, Ar = phenyl (opt. substd. by 1 or 2 of Me, Et, OMe and OEt); R = 1-8C alkoxy; R = 1-4C alkyl or 1-6C alkoxy. Esp. Ar = Ph, R = OMe or OEt, and R = Me, OMe or OEt.

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