摘要:
Copper is chemically deposited from alkaline aqueous baths containing polyacetal complexing agents obtainable by reacting(a) dialdehydes of the formula ##STR1## and n is 0 or 1, with (b) polyolcarboxylic acids which contain 2 or more OH groups and have from 4 to 7 carbon atoms in a molar ratio of (a):(b) of from 1:0.5 to 1:3.
摘要:
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 at least two brighteners by using as brighteners a mixture ofA) from 2 to 98% by weight of one or more cyclic N-allylammonium or N-vinylammonium compounds I ##STR1## where the nitrogen atom is part of a pyridine, quinoline or isoquinoline ring system which may additionally carry one or two C.sub.1 - to C.sub.4 -alkyl substituents or halogen atoms,R.sup.1, R.sup.3 and R.sup.4 are each hydrogen or C.sub.1 - to C.sub.4 -alkyl,R.sup.2 is hydrogen or methyl,m is from 0 to 4,n is from 1 to 4, andX.sup..crclbar. is an n-valent inorganic or organic anion which promotes solubility in water, andB) from 98 to 2% by weight of one or more acetylenically unsaturated compounds IIR.sup.4 --C.tbd.C--R.sup.5 (II) where R.sup.4 and R.sup.5 are identical or different and each is C.sub.1 - to C.sub.4 -alkyl substituted by hydroxyl, sulfo, amino, C.sub.1 - to C.sub.4 -alkylamino or di(C.sub.1 - to C.sub.4 -alkyl)amino, although hydroxyl groups may have been reacted with from 1 to 10 mol of a C.sub.2 - to C.sub.4 -alkylene oxide or a mixture of such alkylene oxides and one of the radicals R.sup.4 and R.sup.5 may also be hydrogen or C.sub.1 - to C.sub.4 -alkyl.
摘要:
Polyethers I ##STR1## R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.20 -alkyl, n and m are each from 1 to 30 and r is from 0 to 20, are used mainly as surfactants in detergent and cleaning agent formulations.
摘要翻译:聚醚I< IMA> R 1和R 2各自为C 1 -C 20 - 烷基,n和m各自为1〜30,r为0〜20,主要用作洗涤剂和清洁剂配方中的表面活性剂。
摘要:
Polyacetals obtainable by reaction of(a) a dialdehyde of the formulaOHC--A.sub.n --CHO whereA=C.sub.1 -C.sub.4 -alkylene or ##STR1## and n is 0 or 1, is reacted with(b) a polycarboxylic acid of 5 to 7 carbon atoms which contains not less than 3 OH groups,in a molar ratio (a):(b) of 1:0.25 to 4 in an aqueous medium in the presence of an acid catalyst, are used as additives in washing agents and as complexing agents for heavy metal ions.
摘要:
Serine-N,N-diacetic acid and derivatives thereof are prepared in various ways and used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.
摘要:
Serine-N,N-diacetic acid and derivatives thereof are prepared in various ways and used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.
摘要:
2-Hydroxy-3-aminopropionic-N,N-diacetic acid and derivatives thereof are used in particular as complexing agents, bleaching agent stabilizers and builders in detergents.
摘要:
Nickel-plated shaped parts are produced by galvanic precipitation of nickel from aqueous-acid baths which contain as essential constituents one or several nickel salts, one or several inorganic acids and one or several brighteners. As brighteners are used thiourea salts having general formula (I), in which R.sup.1 to R.sup.4 stand for hydrogen, C.sub.1 to C.sub.18 -alkyl, which may be substituted by carboxyl groups, C.sub.1 to C.sub.4 -alkoxycarbonyl groups or cyano groups, C.sub.2 to C.sub.12 -alkenyl, C.sub.2 to C.sub.12 -alkinyl, C.sub.5 to C.sub.8 -cycloalkyl, C.sub.7 to C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two C.sub.1 to C.sub.4 -alkyl residues, C.sub.1 to C.sub.4 -alkoxy residues, halogen atoms, hydroxyl groups, phenyl groups, phenyl residues or C.sub.1 to C.sub.4 alkoxycarbonyl groups; Y sands for a chemical bond or for linear or branched alkylene, alkenylene or alkinylene having each up to 20 C. atoms; A stands for hydrogen or a group having the formulae: --CO--H, --CO--R.sup.5, --CO--OH, --CO--OR.sup.5, --CO--NR.sup.6 R.sup.7, --CO--CH.sub.2 --CO--OR.sup.5, --O--CO--H, --O--CO--R.sup.5, --NR.sup.6 --CO--R.sup.5, --NR.sup.6 --CO--R.sup.5, --OR.sup.5, --SO.sub.2 --R.sup.5, --SO.sub.2 --OH, --SO.sub.2 --OR.sup.5, --PO(PH).sub.2, --PO(OH)(OR.sup.5), --PO(OR.sup.5).sub.2, OPO(OH).sub.2, --OPO(PH)(PR.sup.5) or --OPO(OR.sup.5).sub.2 in which R.sup.5 stands for C.sub.1 to C.sub.12 -alkyl, C.sub.2 to C.sub.12 -alkenyl, C.sub.2 to C.sub.12 -alkinyl, C.sub.5 to C.sub.8 -cycloalkyl, C.sub.7 to C.sub.12 -phenylalkyl or phenyl, which may be substituted by one or two C.sub.1 to C.sub.4 -alkyl residues, halogen atoms, hydroxyl groups, phenyl residues or C.sub.1 to C.sub.4 -alkoxycarbonyl groups; and R.sup.6 and R.sup.7 stand for hydrogen or C.sub.1 to C.sub.4 -alkyl; n is a number from 1 to 4 and X.sub.(--) stands for s water solubility-promoting, n-valent inorganic or organic anion.
摘要:
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, whereR.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, andX.sup..crclbar. is an n-valent inorganic or organic anion that promotes solubility in water.
摘要:
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, the brighteners used being cyclic ammonium compounds I ##STR1## where the nitrogen atom is part of a pyridine, quinoline or isoquinoline ring system which can additionally carry one or two C.sub.1 -C.sub.4 -alkyl substituents,R.sup.1 and R.sup.2 are each hydrogen or C.sub.1 -C.sub.4 alkyl,A is a group of the formula --CO--O--R.sup.3, --CO--CH.sub.2 --CO--O--R.sup.3, --O--CO--R.sup.3 or --O--R.sup.3,whereR.sup.3 is C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.8 -cycloalkyl, C.sub.7 -C.sub.12 -phenylalkyl or phenyl which can be substituted by one or two C.sub.1 -C.sub.4 -alkyl radicals, C.sub.1 -C.sub.4 -alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C.sub.1 -C.sub.4 alkoxycarbonyl groups, m is from 0 to 10, n is from 1 to 4, p is 0 or 1, and X.sup..crclbar. is an n-valent inorganic or organic anion which promotes water solubility,with the proviso that for p=0 and A=--CO--O--C.sub.1 -C.sub.12 -alkyl m must not be 1, 2 or 3 and under the same conditions R.sup.1 must not be hydrogen when m is 0.