Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1995-09-15
1997-07-08
McGinty, Douglas J.
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510108, 510230, 510470, 510477, 510495, 510507, 510509, 510531, 510532, 510533, C11D 337, C11D 322, C11D 112
Patent
active
056461038
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a detergent or cleaning composition containing degradable polymeric polycarboxylates as incrustation inhibitors, to a builder for detergents or cleaning compositions and to processes for the production of the detergent or cleaning composition and the builder.
2. Statement of Related Art
In practice, polymeric polycarboxylates based on homopolymeric and copolymeric acrylic acid or maleic acid or salts thereof are generally used as incrustation inhibitors. Copolymeric salts produced solely from the monomers (meth)acrylic acid and/or maleic acid are particularly preferred in this regard. Unfortunately, a disadvantage of these polymers is that they are not readily biodegradable.
DESCRIPTION OF THE INVENTION
Accordingly, the problem addressed by the present invention was to provide detergents showing both high primary washing power and high secondary washing power in which biologically degradable polymers would be present as incrustation inhibitors.
Accordingly, the present invention relates to a detergent or cleaning composition, more particularly a laundry detergent, containing (co)polymeric polycarboxylic acids and/or polycarboxylates, characterized in that it contains a terpolymer of the monomers of a monoethylenically unsaturated C.sub.3-8 carboxylic acid, a 2-alkyl allylsulfonic acid or 2-aryl allylsulfonic acid and a carbohydrate and/or the salts of a monoethylenically unsaturated C.sub.3-8 carboxylic acid and of a 2-alkyl allylsulfonic acid or 2-aryl allylsulfonic acid and a carbohydrate as the copolymeric polycarboxylic acid and/or copolymeric polycarboxylate.
The terpolymers used in accordance with the invention contain two carboxylic acids and/or salts thereof and a carbohydrate as monomers. The first acidic monomer or salt is derived from a monoethylenically unsaturated C.sub.3-8 monocarboxylic acid and preferably from a C.sub.3-4 monocarboxylic acid, more particularly from (meth)acrylic acid. The second acidic monomer or salt is a derivative of an allylsulfonic acid substituted in the 2-position by an alkyl radical, preferably a C.sub.1-4 alkyl radical, or by an aromatic radical preferably derived from benzene or benzene derivatives. Preferred terpolymers contain 40 to 60% by weight and, more particularly, 45 to 55% by weight of (meth)acrylic acid or (meth)acrylate, more preferably acrylic acid or acrylate, 10 to 30% by weight and preferably 15 to 25% by weight of methallylsulfonic acid or methallyl sulfonate and, as the third monomer, 15 to 40% by weight and preferably 20 to 40% by weight of a carbohydrate. This carbohydrate may be, for example, a mono- di-, oligo- or polysaccharide, mono-, di- or oligosaccharides being preferred. Through the use of this third monomer, weak spots are incorporated in the polymer and are responsible for its biological degradability. Sucrose is particularly preferred as the third monomer. The terpolymers used in accordance with the invention may be produced by any of the known processes.
More particularly, the monomeric acids are reacted with the carbohydrate, after which the acids are optionally neutralized, preferably to their alkali metal salts, such as the sodium or potassium salts, or ammonium salts or alkanolamine salts, such as the monoethanolamine salt or the triethanolamine salt.
Similarly to the known (co)polymeric polycarboxylic acids or polycarboxylates, such as the homopolymeric or copolymeric acrylic acids or acrylates, preferred terpolymers are also those of which all or at least part and, more particularly, more than 50%, based on the carboxyl groups present, are neutralized. A completely neutralized terpolymer, i.e. a terpolymer consisting of the salts of the monomeric acids, more particularly the sodium or potassium salts of the monomeric acids, and a carbohydrate is particularly preferred. The terpolymers generally have a relative molecular weight in the range from 1,000 to 200,000, preferably in the range from 2,000 to 50,000 and more particularly in the range from
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Kottwitz Beatrix
Krings Peter
Poethkow Joerg
Upadek Horst
Douyon Lorna M.
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
McGinty Douglas J.
Millson Jr. Henry E.
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