Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1996-01-22
1999-08-10
Medley, Margaret
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510404, 510405, 510421, 510433, 510434, 510435, 510436, C11D 333, C11D 320, C11D 1004
Patent
active
059359200
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to powder-form, paste-form or liquid formulations for cleaning and/or degreasing hard surfaces, for example metallic surfaces, but especially surfaces of organic polymers, for example paints and coatings, but especially surfaces of halogenated polyolefins, such as polyvinyl chloride. The formulations according to the invention are characterized by a combination of active substances consisting of amino acids, carboxylic acids or salts thereof and nonionic surfactants. The formulations may be used as industrial cleaners (as neutral cleaners or as alkaline cleaners) and for cleaning vehicles and plant.
STATEMENT OF RELATED ART
DE-A-27 12 900 describes a process for the spray cleaning of metals. This cleaning process is carried out at pH values of 7.5 to 11 and preferably at pH values of 8.5 to 10 using solutions containing A) soluble salts, preferably alkanolamine salts, of aromatic carboxylic acids and/or branched and/or straight-chain aliphatic carboxylic acids containing 6 to 12 carbon atoms, B) one or more nonionic surfactants, C) one or more surface-active quaternary ammonium compounds. The document does not contain any references to the possible use of amino acids in such cleaning formulations.
GB-A-2,23 1,580 describes cleaning formulations intended in particular for sanitary purposes. They have pH values of 6.0 to 8.0 and contain A) 0.1 to 20% by weight of an anionic and/or nonionic surfactant, B) hydroxycarboxylic acids or salts thereof, C) aminocarboxylic acids or salts thereof and D) 0.1 to 20% by weight of an alkylene glycol alkyl ether as solvent. It is apparent from the specification that the aminocarboxylic acids are not understood to be amino acids containing free NH.sub.2 groups. Instead, aminocarboxylic acids in the context of this document are carboxylic acids containing a tertiary aminofunction, for example nitrilotriacetic acid or ethylenediamine tetraacetic acid.
DE-A-32 06 350 relates to a liquid cleaning mixture which has a suitable viscosity at the time of its application. It is intended in particular as a hair washing formulation. Its principal components consist of ammonium alkylsulfates, alkylenediamine carboxylic acid derivatives and 0.1 to 5% by weight of a carboxylic acid, a salt of the carboxylic acid, an amino acid or a salt of the amino acid. The carboxylic acid is selected from fatty acids containing 1 to 8 carbon atoms, dicarboxylic acids containing 2 to 7 carbon atoms, hydroxycarboxylic acids or unsaturated polybasic carboxylic acids. The amino acid may be selected from neutral amino acids, acidic amino acids, basic amino acids, hydroxyamino acids, imino acids or sulfur-containing amino acids. In a particularly preferred embodiment, the amino acids are glycine, alanine, valine, leucine, isoleucine, phenyl alanine, tryptophanic acid, sarcosine, beta-alanine, gamma-aminobutyric acid, epsilon-aminocaproic acid, glutamic acid, aspartic acid, cysteic acid, homocysteic acid, lysine, ornithine, arginine, serine, homoserine, tyrosine, threonine, proline, hydroxyproline, cystine, cysteine or methionine.
WO 92/01778 discloses a process for the production of a powder-form laundry detergent in which the acid form of an anionic surfactant is continuously neutralized with alkali metal hydroxide. This document is related to the present invention in the fact that an alpha-aminodicarboxylic acid selected from the group consisting of glutamic acid, aspartic acid, aminomalonic acid, aminoadipic acid and 2-amino-2-methylpentanedioic acid or salts thereof is added. Sodium glutamate is particularly preferred. Other optional constituents of the detergent mixture are nonionic, cationic, amphoteric or zwitterionic surfactants. The detergents in question may also contain carboxylates, C.sub.10-18 alkyl monocarboxylates, i.e. soaps, being particularly mentioned.
DE-A-19 42 236 describes detergents, washing aids and cleaning formulations which have a particularly good dissolving effect on protein-containing soils by virtue of the fact that they contai
REFERENCES:
patent: 4284434 (1981-08-01), Lingmann et al.
patent: 4412943 (1983-11-01), Hirota et al.
patent: 4745103 (1988-05-01), Oono et al.
patent: 5415813 (1995-05-01), Misselyn et al.
patent: 5486307 (1996-01-01), Misselyn et al.
patent: 5552089 (1996-09-01), Misselyn et al.
patent: 5573702 (1996-11-01), Bonnechere et al.
patent: 5604195 (1997-02-01), Misselyn et al.
Geke Juergen
Zetzsche Friedbert
Henkel Kommanditgesellschaft auf Aktien
Jaeschke Wayne C.
Medley Margaret
Szoke Ernest G.
Wisdom, Jr. Norvell E.
LandOfFree
Cleaner with high wetting power does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cleaner with high wetting power, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cleaner with high wetting power will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1120079