申请人:BASF Aktiengesellschaft
公开号:US05445724A1
公开(公告)日:1995-08-29
Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salts, one or more inorganic acids and one or more brighteners by a procedure in which the brighteners used are phosphonium salts I ##STR1## where R.sup.1 to R.sup.3 are each C.sub.1 -C.sub.18 -alkyl, which may be carboxyl-, C.sub.1 -C.sub.4 -alkoxycarbonyl- or cyano-substituted, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl, phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl, or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino, R.sup.4 and R.sup.5 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, A is hydrogen or a group of the formula --CO--H, --CO--R.sup.6, --CO--OH, --CO--OR.sup.6, --CO--CH.sub.2 --CO--OR.sup.6, --O--CO--H, --O--CO--R.sup.6, --OR.sup.6, --SO.sub.2 --R.sup.6, --SO.sub.2 --OH, --SO.sub.2 --OR.sup.6, --PO(OH).sub.2, --PO(OH)(OR.sup.6), --PO(OR.sup.6).sub.2, --OPO(OH).sub.2, --OPO(OH)(OR.sup.6) or --OPO(OR.sup.6).sub.2, where R.sup.6 is C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two substituents selected from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, hydroxyl, phenyl and C.sub.1 -C.sub.4 -alkoxycarbonyl, Y is --CH.dbd.CH-- or --C.dbd.C--, m is from 0 to 10, n is from 1 to 4, p is 0 or 1, q is from 0 to 10, and X.sup..crclbar. is an n-valent inorganic or organic anion that promotes solubility in water.
镍化形状物品是通过从含有一个或多个镍盐,一个或多个无机酸和一个或多个亮化剂的水酸性溶液中电沉积镍来生产的。使用的亮化剂是磷酸铵盐I,其中R1至R3分别为C1-C18烷基,可以是羧基,C1-C4烷氧基羰基或氰基取代的烷基,C2-C12烯基,C2-C12炔基,C5-C8环烷基,C7-C12苯基烷基,苯基,可以通过从C1-C4烷基,C1-C4烷氧基,卤素,羟基,苯基和C1-C4烷氧基羰基的群中选择一个或两个取代基来取代。R4和R5分别为氢或C1-C4烷基,A为氢或公式--CO--H,--CO--R6,--CO--OH,--CO--OR6,--CO--CH2--CO--OR6,--O--CO--H,--O--CO--R6,--OR6,--SO2--R6,--SO2--OH,--SO2--OR6,--PO(OH)2,--PO(OH)(OR6),--PO(OR6)2,--OPO(OH)2,--OPO(OH)(OR6)或--OPO(OR6)2的基团,其中R6为C1-C12烷基,C2-C12烯基,C2-C12炔基,C5-C8环烷基,C7-C12苯基烷基或苯基,可以通过从C1-C4烷基,C1-C4烷氧基,卤素,羟基,苯基和C1-C4烷氧基羰基的群中选择一个或两个取代基来取代。Y为--CH=CH-或--C=C-,m为0到10,n为1到4,p为0或1,q为0到10,X-是促进水溶性的n价无机或有机阴离子。