Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1995-11-24
1998-07-28
Diamond, Alan
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510220, 510180, 510244, 510245, 510533, 510108, 134 252, 134 254, 134 2, C11D 333
Patent
active
057863130
DESCRIPTION:
BRIEF SUMMARY
This application is a 371 of PCT/EP94/01838 filed Jun. 6, 1994.
The present invention relates to the use of glycine-N,N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts as complexing agents for alkaline earth metal ions and heavy metal ions with the exception of .alpha.-alanine-N,N-diacetic acid as textile detergent builders in powder detergent formulations and as calcium sequestrants in oral hygiene products.
The present invention furthermore relates to a process for preparing glycine-N,N-diacetic acid derivatives and to intermediates arising in this process.
Since some of the glycine-N,N-diacetic acid derivatives represent novel substances, the invention also relates to these novel substances.
Japanese Published Specifications 80/157 695 (1) and 80/160 099 (2), quoted in Chem. Abstr. 95 (1981) 9123 m and 9124 n, respectively, disclose the use of alanine-N,N-diacetic acid in the form of the sodium salt as builder in textile detergents formulated in powder form, with an enhancement of the wash efficiency being observed in particular for cotton textiles.
EP-A 089 136 (3) relates to oral hygiene products which contain as calcium sequestrant inter alia .alpha.-alanine-N,N-diacetic acid. These are used to control the amount of calcium fluoride supplied to the dental enamel to protect from caries.
Complexing agents for alkaline earth metal ions and heavy metal ions used in a wide variety of industrial areas with their ranges of requirements and problems which in some cases differ greatly from one another are still normally systems which have been known and used for a long time such as polyphosphates, nitrilotriacetic acid or ethylenediaminetetraacetic acid. However, these agents show certain disadvantages, and the main weak points are, in particular, their calcium- and manganese-binding capacities which are still in need of improvement, their as yet non-optimal stabilizing action in bleaching baths and bleaching systems, and their biodegradability and ability to be eliminated, which are usually inadequate.
It was therefore an object of the present invention to provide complexing agents which no longer have the disadvantages of the prior art.
Accordingly, the use of glycine-N,N-diacetic acid derivatives of the general formula I ##STR1## in which
R is C.sub.1 - to C.sub.30 -alkyl or C.sub.2 - to C.sub.30 -alkenyl, which can additionally carry as substituents up to 5 hydroxyl groups, formyl groups, C.sub.1 - to C.sub.4 -alkoxy groups, phenoxy groups or C.sub.1 - to C.sub.4 -alkoxycarbonyl groups and be interrupted by up to 5 non-adjacent oxygen atoms, alkoxylate groups of the formula --(CH.sub.2).sub.k --(A.sup.1 O).sub.m --(A.sup.2 O).sub.n --Y, in which A.sup.1 and A.sup.2 are, independently of one another, 1,2-alkylene groups with 2 to 4 carbon atoms, Y is hydrogen, C.sub.1 - to C.sub.12 -alkyl, phenyl or C.sub.1 - to C.sub.4 -alkoxycarbonyl, and k is the number 1, 2 or 3, and m and n are each numbers from 0 to 50, where the total of m+n must be at least 4, phenylalkyl groups with 1 to 20 carbon atoms in the alkyl, a five- or six-membered unsaturated or saturated heterocyclic ring with up to three heteroatoms from the group consisting of nitrogen, oxygen and sulfur, which can additionally be benzo-fused, carrying C.sub.1 - to C.sub.20 -alkyl groups, where all the phenyl nuclei and heterocyclic rings mentioned in the meanings of R can additionally also carry as substituents up to three C.sub.1 - to C.sub.4 -alkyl groups, hydroxyl groups, carboxyl groups, sulfo groups or C.sub.1 - to C.sub.4 -alkoxycarbonyl groups, or a radical of the formula ##STR2## where A is a C.sub.1 - to C.sub.12 -alkylene bridge, preferably a C.sub.2 - to C.sub.12 -alkylene bridge, or a chemical bond, and
M is hydrogen, alkali metal, alkaline earth metal-, ammonium or substituted ammonium in the appropriate stoichiometric amounts, with the exception of .alpha.-alanine-N,N-diacetic acid as textile detergent builders in powder detergent formulations and as calcium sequestrants in
REFERENCES:
patent: 3733355 (1973-05-01), Harris et al.
patent: 3961932 (1976-06-01), Miller
patent: 3969257 (1976-07-01), Murray
patent: 4001133 (1977-01-01), Sorgenfrei et al.
patent: 4066517 (1978-01-01), Stevens et al.
patent: 4287080 (1981-09-01), Siklosi
patent: 4752354 (1988-06-01), Beurich et al.
patent: 4806263 (1989-02-01), Leathers et al.
patent: 4880725 (1989-11-01), Hirai et al.
patent: 4973730 (1990-11-01), Baur et al.
patent: 5019296 (1991-05-01), Bauer et al.
patent: 5481018 (1996-01-01), Athey et al.
patent: 5580705 (1996-12-01), Ueda et al.
Chemical Abstract No. 54:18377d (1960). Month Unknown.
Baur Richard
Greindl Thomas
Kud Alexander
Oftring Alfred
Potthoff-Karl Birgit
BASF - Aktiengesellschaft
Diamond Alan
LandOfFree
Use of glycine-N,N-diacetic acid derivatives as biodegradable co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Use of glycine-N,N-diacetic acid derivatives as biodegradable co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of glycine-N,N-diacetic acid derivatives as biodegradable co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-23424