Abstract:
Process for the preparation of acyloxyalkanesulfonatesProcess for the preparation of acyloxyalkanesulfonates of the formula ##STR1## where R denotes C.sub.7 -C.sub.21 -alkyl or C.sub.7 -C.sub.21 -alkenyl, A denotes C.sub.2 -C.sub.4 -alkylene and M denotes an alkali metal atom or an alkaline earth metal atom, by esterification of carboxylic acids using salts of hydroxyalkanesulfonic acids, under mild reaction conditions, carboxylic acids of the general formula R--CO.sub.2 H being esterified using a salt of the formula HO--A--SO.sub.3 M in the presence of aqueous hydrochloric acid.
Abstract:
Compounds of the formula ##STR1## where y is 1 or 2,A is hydrogen, C.sub.1 -C.sub.2 -alkyl, aryl or a group of the formula ##STR2## if y is 1, or C.sub.2 -C.sub.20 -alkylene or arylene if y is 2, R.sup.1 and R.sup.2 can be identical or different and each is hydrogen, C.sub.1 -C.sub.20 -alkyl, aryl, haloaryl, alkoxyaryl or alkylaryl, or else R.sup.1 and R.sup.2 together are a C.sub.2 -C.sub.4 -alkylene radical,x is 0 or 1,B is a group of the formula ##STR3## n is from 1 to 20, m is 0, 1 or 2,R.sup.3 is C.sub.1 -C.sub.20 -alkyl andR.sup.4 is in each case hydrogen or C.sub.1 -C.sub.20 -alkyl.These compounds are suitable for use as bleaching, oxidizing or disinfecting agents.
Abstract:
Peptides having essentially the sequence of bovine pancreatic trypsin inhibitor (aprotinin) wherein one or more of the amino acids at positions 15, 16, 17, 18, 34, 39 and 52 are replaced by any naturally occurring amino acid produced by recombinant DNA technology, process, expression vector and recominant host therefor and pharmaceutical use thereof. Such peptides being useful as therapeutic agents in diseases connected with the presence of excessive amounts of proteinases.
Abstract:
The invention relates to the use of manganese oxalates in detergents and cleaning agents, in particular in cleaning agents containing peroxy compounds for hard surfaces.
Abstract:
The invention relates to a method for producing acyloxy benzoic acids of the formula (I), in which R1 is a linear or branched saturated alkyl group with 6 to 30 carbon atoms, a linear or branched mono- or polyunsaturated alkenyl group with 6 to 30 carbon atoms, or an aryl group with 6 to 30 carbon atoms. The acyloxy benzoic acids of the formula (I) are produced from para-hydroxy benzoic acid and a corresponding carboxylic acid halide in the presence of an alkali hydroxide.
Abstract:
The invention relates to co-granules containing a) at least one bleach activator, b) at least one metal-containing bleach catalyst, and c) at least 5 wt. % of at least one organic acid. The co-granules are easy to produce, have a high stability in storage and are advantageously suitable for producing cleaning products and detergents and especially products for cleaning crockery in a machine.
Abstract:
The invention relates to a method for producing metal complexes of formula (2) [MaLxXn]Ym (2), where M is a metal from the group consisting of Mn(II), Mn(III), Mn(IV), Fe(II), Fe(III) or Fe(IV), X is a coordinating compound selected from mono-, bi- or tri-charged anions or neutral molecules which can coordinate to a metal in mono-, bi- or tri-dentate form, Y represents a non-coordinating counter-ion which ensures charge equalization of the complex, L represents a ligand of formula (1) or the protonized or de-protonized form thereof, and a, x, n, m, R, R1, R2, R3 and z have the meanings described in claim 1. Said method is characterized in that the reaction of one or more ligands of formula (1) with an iron salt or manganese salt is carried out in an acetone/water mixture in a temperature range from 0 to 50° C. and for this purpose a solution or a suspension of the one or more ligands of formula (1) in acetone is brought in contact with an aqueous metal salt solution of the iron salt or manganese salt in the temperature range in which the reaction takes place.
Abstract:
The invention relates to the use of manganese or iron complexes which, as well as a tetraoxolene unit, contain two macrocyclic, N-containing ligands, especially cyclen or cyclam ligands, in washing and cleaning compositions in the form of granules or powder or solution or suspension for bleaching of coloured stains both on textiles and on hard surfaces. The invention also relates to washing and cleaning compositions which comprise such complexes as bleach activators and to the use thereof for textile washing or for dishwashing detergents and other uses in personal care and other areas.
Abstract:
The invention relates to a method for producing manganese complex compounds of the general formula (1), wherein M, X, L, z, Y and q are defined as in claim 1. The method is characterized by the following steps: a) reacting one or more bivalent metal salts with the ligand L in water as the solvent to form a coordination compound from the one or more bivalent metal salt and the ligand L, the one or more bivalent metal salts being selected from bivalent manganese salts and iron salts and at least one bivalent metal salt being a bivalent manganese salt, b) oxidizing the coordination compound of step a) with an oxidant while at the same time maintaining a pH of 11 to 14, to transform the metal M from the bivalent to the trivalent and/or tetravalent form, c) reducing the pH of the reaction mixture to a pH of 4 to 9 and removing any metal oxides or metal hydroxides of the metal M formed and d) adding, at a pH of 4 to 9, a salt of the formula MezYq, wherein Me represents an alkali metal ion, ammonium ion or an alkanol ammonium ion, and Y, z and q are defined as in formula (1).
Abstract:
The invention discloses mixtures consisting of two or three surfactants from the group containing secondary alkane sulfonates, α-methyl ester sulfonates and φ-methyl ester sulfonates. Said mixtures exhibit a synergistic cleaning action in comparison to the respective individual surfactants.