摘要:
Heterocyclic compounds which are useful as bleach activators or optical brighteners in washing and cleaning agents have the formula ##STR1## where the variables have the following meanings: X is O, S or the group N--R.sup.3, where R.sup.3 is hydrogen, C.sub.1 -C.sub.25 -alkyll C.sub.1 -C.sub.25 -acyl or an aryl group of up to12 carbon atoms,Y is CH or N,R.sup.1 for X=S or N--R.sup.3 is hydrogen, a C.sub.1 -C.sub.25 -alkyl or C.sub.2 -C.sub.25 -alkenyl group or a phenyl radical which may be additionally substituted by one or two C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl, carboxyl, sulfo, amino, C.sub.1 -C.sub.4 -acylamino, nitro or cyano groups or chlorine or bromine atoms, which substituents, if there are two of them, may be identical or different,R.sup.1 for X=O is phenyl, o-, m- or p-tolyl, p-chlorophenyl, m-nitrophenyl, m-methoxyphenyl or m-methylsulfonylphenyl,R.sup.2 for X=S or N--R.sup.3 is hydrogen, a C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, hydroxyl, carboxyl, sulfo, amino or C.sub.1 -C.sub.4 -acylamino group or a chlorine or bromine atom, andR.sup.2 for X=O is hydrogen.
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:
.beta.-Alaninediacetic acid (Ia) or its alkali metal or ammonium salts (Ib) are prepared by a process in which iminodiacetic acid and acrylic acid(a) for the preparation of Ia, are reacted with one another in a nonbasic aqueous medium and(b) for the preparation of Ib, are reacted with one another in an alkaline aqueous medium or an aqueous medium containing a nitrogen base, or the Ia formed in the nonbasic medium is converted with an alkali metal base, ammonia or an amine into Ib.
摘要:
Heterocyclic compounds IR.sup.1 --X--L (I)whereL is a cyclic carbamate residue, a lactonoxy residue or a lactam residue,X is an oxygen-containing group ##STR1## where A is a linker, and R.sup.1 is an organic radical or a group L,are used as activators for inorganic peroxy compounds, in particular as cold bleach activators or optical brighteners in detergents, cleaners and bleaches and in disinfectants.
摘要:
.beta.-Alaninediacetic acid (Ia) or its alkali metal or ammonium salts (Ib) are prepared by a process in which iminodiacetic acid and acrylic acida) for the preparation of Ia, are reacted with one another in a nonbasic aqueous medium andb) for the preparation of Ib, are reacted with one another in an alkaline aqueous medium or an aqueous medium containing a nitrogen base, or the Ia formed in the nonbasic medium is converted with an alkali metal base, ammonia or an amine into Ib.
摘要:
Washing and cleaning agents for aqueous use contain from 2 to 25% by weight, based on the total weight of the agent, of .beta.-alanine-N,N-diacetic acid or an alkali metal or ammonium salt thereof as water softener. The washing and cleaning agent is effective in preventing hardness deposits on textiles and fabrics.
摘要:
2-Methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof of the general formula I ##STR1## in which X denotes hydrogen, alkali metal or ammonium which may or may not be substituted by C.sub.1 -C.sub.4 -hydroxyalkyl groups and Z denotes hydrogen or hydroxyl.The compounds I serve as complexing agents for heavy metal ions or alkaline earth metal ions and as bleach stabilizers or builders in detergents and cleaning formulations.
摘要:
The use of triacids of the formula I ##STR1## where X.sup.1 to X.sup.3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO.sub.3 M or phosphonic acid groups of the formula PO.sub.3 M.sub.2, whereM is hydrogen, alkali metal, ammonium or substituted ammonium,A.sup.1 to A.sup.3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms,R.sup.1 to R.sup.3 are, independently of one another, C.sub.1 -C.sub.8 -alkylene, andx, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1,as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.
摘要:
A granular bleaching activator for use in a detergent or bleach, which has particles which have a size of from 0.5 to 3 mm and are composed of(a) from 70 to 99.5% by weight of one or more bleaching activators for per-compounds and(b) from 0.5 to 30% by weight of one or more water-swellable assistantsand which have been prepared, without use of water, by compacting the components (a) and (b).
摘要:
Textile goods containing synthetic fibers are washed and after-treated by a process wherein, as an antiredeposition agent, a copolymer is employed which contains, as copolymerized monomers,(a) from 50 to 90% by weight of one or more vinyl esters of C.sub.1 -C.sub.4 aliphatic carboxylic acids,(b) from 5 to 35% by weight of one or more N-vinyllactams,(c) from 1 to 20% by weight of one or more monomers containing basic groups, or of salts or quaternization products of these monomers, and(d) from 0 to 20% by weight of one or more further monomers which are copolymerizable with monomers (a), (b) and (c) and are free from carboxyl and basic groups,the percentages in each case being based on the sum of the monomers, with the proviso that the percentages sum to 100.