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 granule core and a sheath or coating layer surrounding the granule core. Said co-granules are characterised in that the granule core contains a) at least one bleach activator, a2) between 0 and 20 wt. % of the total quantity of at least one bleach catalyst contained in the co-granule, and c) at least one binding agent, and the sheath or coating layer contains d) between 80 and 100 wt. % of the total quantity of the at least one bleach catalyst contained in the co-granule, and e) at least one coating agent. The co-granules are advantageously suitable for producing cleaning products and detergents and especially products for washing crockery in a machine.
Abstract:
A process for preparing solid alkaline earth metal salts of secondary paraffinsulphonic acids is claimed. This process comprises converting an aqueous solution of a secondary paraffinsulphonic acid and an alkaline earth metal hydroxide into solid form by spray drying.
Abstract:
What are claimed are synergistically active bleach activator mixtures consisting ofa) a hydroxybenzoic acid derivative of the formula 1 in which R is C8-C11-alkyl, andb) tetraacetylethylenediamine and/or 1,5-diacetyl-2,4-dioxo-1,3,5-hexahydrotriazine.
Abstract:
The use of compounds of the formula (1) M(L)nXm (1) where M is a metal atom from the group Mn, Fe, Co, Ni, Mo, W, L is a ligand from the group of nitrogen-containing heterocycles, X is chloride, bromide, nitrate, perchlorate, sulfate, ammonia, tetrafluoroborate, hexafluorophosphate or an anion of an organic acid having 1 to 22 carbon atoms, n is a number from 2 to 4 and m is a number from 0 to 4, as catalyst for peroxygen compounds, in particular in washing, bleaching and cleaning compositions is claimed.
Abstract:
A process is claimed for preparing granulated acyloxybenzenesulfonates which consists in granulating a mixture composed essentially of acyloxybenzenesulfonate and optical brightener.
Abstract:
A process for preparing acyloxybenzenesulfonates by reacting anhydrous phenolsulfonates with carboxylic acid derivatives comprises conducting the reaction with a salt of a phenolsulfonic acid which has a water content of less than 0.5% by weight and has been contacted with a substance having basic properties.
Abstract:
Transition metal complexes used as bleach catalysts of the formula (1) M(L)nXm (1) where M is a metal atom from the group Mn, Fe, Co, Ni, Mo, W, L is a ligand of the formula R1R2C═N—O(H)z R1 is C1-C22-alkyl, C2-C22-alkenyl or C5-C24-aryl, R2 is H, C1-C22-alkyl, C2-C22-alkenyl, C5-C24-aryl or where z=0 or 1, X is a neutral or anion ligand from the group consisting of pyridines, imidazolines, methylimidazoles, picolines, lutidines, chloride, bromide, nitrate, perchlorate, citrate, hexafluorophosphate or anions of organic acids having C1-C22 carbon atoms, n is a number from 2 to 4 and m is a number from 0 to 4.
Abstract:
This invention is directed to a process for preparing a compound containing a persalt activators and salts thereof which are derived from imidocarboxylic acids and sulfimidocarboxylic acids of the formula I: ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl,R.sup.2 is hydrogen, chlorine, bromine, --SO.sub.3 M, --CO.sub.2 M or --OSO.sub.3 M, X is C.sub.1 -C.sub.19 -alkylene or arylene,B is a group of the formula C.dbd.O or SO.sub.2,L is a leaving group.
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.